Slovakia’s mandatory electronic-invoicing regime is no longer only a policy proposal. The legal framework was enacted in Act No. 385/2025 Coll., and the first mandatory domestic phase takes effect on 1 January 2027. For a foreign owner, the hard part is not the date. It is identifying which legal entity, which VAT registration and which transaction falls within the first phase.
This guide translates the current Slovak VAT rules into a practical implementation plan for foreign-owned Slovak companies, finance teams, accountants and software providers.
Legal and technical information verified as of: 1 September 2026. Last updated: 1 September 2026.
Status note: The core 2027 obligation, scope and principal reporting rules are enacted. Provider lists, software integrations, validation rules and user interfaces can still be updated before go-live. Operational settings should therefore be rechecked during implementation.
The short answer
Yes. Slovakia’s mandatory structured e-invoicing regime is confirmed for an initial domestic phase beginning on 1 January 2027. A Slovak VAT payer registered under Section 4, 4b or 4c must generally issue a structured electronic invoice for covered domestic B2B and B2G supplies to a Slovak recipient. A foreign shareholder or foreign managing director does not create an exemption for a Slovak s.r.o.
A normal PDF sent by email is not the required structured electronic invoice. The compliant invoice must be created, sent and received in a machine-processable format conforming to EN 16931. Slovakia’s default operational model uses Peppol and a certified delivery service provider known locally as a Digitálny poštár, or “Digital Postman.”
The result differs for a foreign company that has no Slovak establishment and is registered for Slovak VAT only under Section 5. According to the current official FAQ, that non-established registrant is not required to issue or receive through the delivery service during the transitional period from 1 January 2027 to 30 June 2030. Cross-border rules expand from 1 July 2030 under the ViDA timetable.
Your practical task is to map transactions, confirm the company’s exact VAT status, select a certified delivery provider, verify that the invoicing or ERP system supports Slovak Peppol rules, configure master data and permissions, test issuance and receipt, and agree in writing what the director, accountant and software provider will do.
What is mandatory e-invoicing?
Mandatory e-invoicing means that an in-scope invoice must be created, transmitted and received as structured data that a computer can process automatically. It is not merely a requirement to stop printing invoices.
Under the Slovak framework, the invoice remains a commercial and tax document between supplier and customer. A certified delivery service can validate its format, route it to the recipient and transmit specified data to the Financial Administration. The system is therefore different from emailing an attachment and different from a central state portal that manually approves every invoice.
The controlling provisions for the first phase are in the Slovak VAT Act effective from 1 January 2027, particularly Sections 71, 76a and 85o.
Is mandatory e-invoicing in Slovakia confirmed for 2027?
Yes. The domestic mandatory phase is enacted and starts on 1 January 2027. Act No. 385/2025 Coll. amended the Slovak VAT Act, and the transitional domestic rules apply until 30 June 2030. The later cross-border phase begins on 1 July 2030.
The law was approved by the Slovak National Council on 9 December 2025 and published in the Collection of Laws on 19 December 2025. The Financial Administration’s official eInvoicing page identifies 1 January 2027 as the effective date and provides the certified-provider list, implementation materials and technical references.
There is no basis in the enacted provisions reviewed for this article to promise a general grace period after 1 January 2027. Some secondary pages mention a possible “soft landing,” but companies should plan for legal readiness on the statutory date unless an official measure is later enacted or formally announced.
What is a structured electronic invoice?
A structured electronic invoice is a machine-readable electronic document that contains the legally required invoice data in a standardised data structure. Slovakia uses the European standard EN 16931, with the accepted UBL 2.1 or UN/CEFACT CII syntaxes. The operational Peppol route uses Peppol BIS Billing 3.0 with Slovak national rules.
The XML is the legal structured original for the mandatory regime. Software can render it into a human-readable screen or PDF view, but that visualisation is not a substitute for the underlying structured file.
Is a PDF invoice sent by email an electronic invoice?
No, not for the mandatory structured regime. A normal PDF sent by email is not automatically machine-processable under EN 16931 and does not satisfy the statutory definition of an in-scope electronic invoice.
A PDF may still be attached to the structured XML when the parties want a familiar visual copy. The Financial Administration’s current eFaktúra FAQ confirms that the PDF attachment is optional. Digitally signing the PDF does not transform it into the required EN 16931 structured invoice.
Why is Slovakia introducing mandatory e-invoicing?
The stated objectives are automated processing, fewer manual-entry errors, safer document exchange and more efficient tax reporting. The Slovak reform also prepares domestic systems for the EU’s VAT in the Digital Age, or ViDA, framework.
The domestic phase begins before the EU-wide cross-border reporting date. From 1 July 2030, the rules expand to relevant cross-border B2B transactions under Council Directive (EU) 2025/516.
Which companies will be affected?
The answer depends on both the entity and the transaction.
Slovak VAT payers
A VAT payer under Section 4, a VAT group under Section 4b, or a group member regime under Section 4c must issue electronic invoices for covered domestic supplies during the 2027–2030 phase. These entities must also be able to receive invoices through the certified delivery service.
Slovak non-VAT companies
A Slovak non-VAT s.r.o. is not required by Section 85o(2) to issue mandatory e-invoices merely because it is a company. It must, however, be capable of receiving an in-scope electronic invoice when a Slovak VAT payer supplies it with covered goods or services. A non-VAT business may also use the system voluntarily for its own invoices where technically and legally appropriate.
Newly incorporated and dormant companies
No special exemption is created merely because a company is new or dormant. A company with no outbound transactions may have no invoices to issue, but it can still receive rent, telecommunications, accounting or other supplier invoices. Its receiving capability should be assessed before 1 January 2027.
Foreign-owned Slovak s.r.o.
A Slovak s.r.o. remains a Slovak legal entity even when every shareholder and director lives abroad. If it is a VAT payer under Section 4 and carries out an in-scope domestic transaction, the mandate applies in the same way as to a domestically owned company.
Foreign company registered for Slovak VAT under Section 5
A foreign company that is not established in Slovakia and holds only a Slovak VAT registration under Section 5 is outside the transitional domestic issuance and receiving obligation from 1 January 2027 to 30 June 2030. This is confirmed in the Financial Administration’s FAQ. Do not confuse this limited exception with a Slovak subsidiary or a foreign business that has a relevant Slovak fixed establishment.
Foreign company with a Slovak fixed establishment
A fixed establishment can change both VAT registration status and transaction analysis. If the establishment creates an in-scope domestic VAT-payer position under Sections 4, 4b or 4c, the 2027 rules may apply. The answer should be confirmed from the registration decision, the role of the establishment in the supply and the place-of-supply rules — not from the foreign head office’s nationality.
Foreign company without a Slovak establishment or VAT registration
It is not brought into the 2027 domestic mandate merely because it trades with Slovakia. Existing invoice and VAT rules still apply, and later ViDA cross-border rules may become relevant from July 2030.
Does foreign ownership create an exemption?
No. Foreign ownership does not exempt a Slovak company. The decisive factors are the legal identity and VAT registration of the supplier, the recipient’s Slovak connection, the place and type of supply, and any statutory exclusion.
This means a Slovak s.r.o. owned by a Polish, Dutch, US or UAE shareholder is assessed as a Slovak company. The separate Section 5 exception applies to a non-established foreign taxable person, not to a Slovak subsidiary simply because its owner is abroad.
Will non-VAT-registered companies be included?
They are included mainly as recipients, not mandatory issuers, in the first phase. A Slovak non-VAT company generally does not have to issue a mandatory e-invoice under Section 85o(2), because that duty is imposed on VAT payers under Sections 4, 4b and 4c. It must be able to receive a covered invoice from an in-scope supplier.
This distinction is operationally important. Even a small or dormant non-VAT s.r.o. may need a Digital Postman account or compatible software for incoming invoices, although it continues issuing its own out-of-scope invoices under the ordinary applicable rules.
Will foreign companies registered for Slovak VAT be included?
Not every Slovak VAT registration is treated alike. A non-established foreign person registered only under Section 5 is not required to issue or receive through the certified delivery service during the 2027–2030 transitional domestic phase. A foreign group’s Slovak subsidiary registered under Section 4 is in scope, and a relevant Slovak fixed establishment must be analysed separately.
This is the single most important correction to generic claims that “all Slovak VAT numbers” are covered from 2027. A Slovak IČ DPH does not, by itself, prove the person is established or registered under Section 4.
Which transactions will be covered?
The first phase targets covered domestic supplies by a VAT payer under Section 4, 4b or 4c to a Slovak taxable person or a Slovak non-taxable legal person.
Transaction | Treatment from 1 January 2027 | Practical note |
|---|---|---|
Domestic B2B supply of goods | Generally in scope where the supplier and recipient conditions are met | Includes advance payments; test exclusions and place of supply |
Domestic B2B supply of services | Generally in scope for services with Slovak place of supply under Sections 15 or 16 | Confirm fixed establishment and reverse-charge facts where relevant |
Domestic B2G | Generally in scope where the public recipient is a Slovak legal person under the rule | Separate public-sector procurement and legacy channel requirements may also require review |
Domestic B2C | Outside the 2027 mandatory regime | A final consumer is not the recipient described in Section 85o(3) |
Intra-EU supply or acquisition | Not brought into the domestic transitional mandate solely as a cross-border transaction | ViDA-aligned cross-border phase begins 1 July 2030 |
Cross-border B2B services | Generally outside the 2027 domestic phase when the supply is cross-border | Existing VAT invoicing and reporting rules continue |
Export or import | Outside the core domestic B2B mandate as such | Customs and existing VAT evidence rules remain relevant |
Advance payment for covered domestic supply | In scope | The electronic invoice is generally due within 15 days of receipt of payment |
Self-billing | Permitted where ordinary legal conditions are met | Supplier remains responsible for correctness; reporting timing needs configuration |
Simplified invoice under Section 74(3)(a) or (b) | Excluded from the mandatory e-invoice duty | Includes qualifying small invoices and qualifying eKasa receipts |
VAT-exempt supplies under Sections 28–43 or 47 | Excluded from the Section 85o(2) mandate | Verify the exact exemption; do not apply the exclusion by intuition |
Domestic invoices versus cross-border invoices
The 2027 phase is a domestic transitional regime. It covers defined Slovak-to-Slovak supplies and advance payments. Cross-border invoicing remains governed by existing rules until the later ViDA-aligned phase, subject to any voluntary Peppol use.
From 1 July 2030, structured e-invoicing and digital reporting expand to relevant intra-EU B2B transactions. The exact 2030 treatment should be implemented against the law and EU specifications then in force; it should not be copied blindly into the 2027 configuration.
B2B versus B2C versus B2G
Transaction type | E-invoicing treatment from 1 January 2027 | Reporting requirement | What the company should verify |
|---|---|---|---|
B2B domestic | Mandatory for covered supplies by Section 4/4b/4c VAT payer to Slovak business | Provider transmits statutory data when delivery service is used; recipient VAT payer reports within five days through service | VAT status, place of supply, recipient DIČ, exclusions and provider route |
B2C domestic | Outside the transitional mandate | No Section 85o reporting for the consumer invoice | Correctly classify customer as final consumer; retain eKasa and ordinary invoicing controls |
B2G domestic | Generally within scope where statutory supplier and recipient tests are met | Same transitional reporting logic when delivery service is used | Public entity identity, procurement/contract references and any parallel sector requirements |
When will the new rules take effect?
The confirmed implementation sequence is:
19 December 2025: Act No. 385/2025 Coll. was published in the Collection of Laws.
1 January 2026: the delivery-service legal framework and provider accreditation provisions became effective; voluntary implementation and testing developed during 2026.
1 January 2027: the mandatory domestic transitional phase begins for in-scope issuance and receiving.
1 January 2027 to 30 June 2030: domestic e-invoicing operates alongside the existing VAT return, VAT control statement and recapitulative statement.
1 July 2030: the ViDA-aligned cross-border phase takes effect; the control statement and recapitulative statement are abolished under the current enacted timetable, while the VAT return remains.
The Financial Administration’s official implementation materials should be checked again during provider selection and before go-live because certified-provider lists and validation specifications continue to be maintained.
How will an electronic invoice be sent?
The default Slovak route is a certified delivery service using the Peppol network. The company selects a provider from the Financial Administration’s official register. The provider may be accessed through:
an integrated Slovak accounting programme;
an ERP or foreign invoicing system connected by API;
a provider’s web application; or
a provider’s mobile application.
The provider validates the document against the applicable structured format, identifies the recipient, routes the invoice and keeps delivery evidence. The Slovak model is decentralised: businesses use certified providers rather than uploading every invoice manually to a central government clearing portal.
Is Peppol the only possible channel?
No. Section 85o allows a compliant structured electronic invoice to be sent by another method if the recipient consents. The invoice must still meet the statutory structured-format definition. Sending by the certified delivery service does not require the recipient’s consent because both sides must be capable of using that route.
For most companies, the Peppol/certified-provider route is the safest default because it combines routing, evidence, validation and statutory reporting. An alternative EDI or direct channel should be used only after confirming recipient consent, EN 16931 compliance, integrity controls and the specific transitional reporting consequences.
Is there a free government invoicing portal?
As of 1 September 2026, the official model relies on market providers that set their own prices. The Financial Administration provides the provider-selection function and technical infrastructure, but it does not confirm a universal free state invoicing application for every business. A small company can use a provider’s web or mobile application if it does not need ERP integration.
How will a company receive electronic invoices?
The company must select and authorise a certified provider so that suppliers can find its Peppol endpoint and deliver structured invoices. The provider then makes the invoice available through the connected accounting system, ERP, web portal or mobile app.
A reliable inbound workflow should include:
technical validation and delivery confirmation;
supplier and purchase-order matching;
business approval by the responsible employee;
tax and accounting review;
posting into the ledger and payment workflow;
exception handling for duplicates, wrong data or disputed supplies; and
storage of the structured original and the audit trail.
Provider selection is a formal authorisation step in the Financial Administration environment. A registered user who is authorised for the tax subject selects the provider. Being a managing director does not always mean the company automatically appears in that user’s portal account; portal registration and authorisation to represent the company are separate processes. A foreign director can arrange an authorised Slovak accountant or adviser where appropriate, but the authority and service scope should be documented.
Will the tax authority receive invoice data?
Yes, when an in-scope electronic invoice is sent or received through the certified delivery service, specified invoice data are transmitted to the Slovak Financial Administration. This is digital reporting, not customer delivery and not a state approval of the commercial invoice.
For the supplier, reporting is normally fulfilled when the invoice is handed to the certified delivery service. If the invoice is issued by the customer or a third party on the supplier’s behalf, Section 85o(9) contains a five-day outer reporting rule linked to issuance or the statutory issuance deadline. A recipient that is a VAT payer under Section 4, 4b or 4c reports data from an invoice received through the service within five days. Section 85o(11) treats the obligation as fulfilled by handing the invoice to the service.
The transitional reporting duty is tied to delivery-service use. The current official FAQ states that if a compliant structured invoice is sent by another agreed method, neither supplier nor recipient has the Section 85o reporting duty for that invoice during the transitional period. This is a technical legal distinction, not a general recommendation to bypass the standard route.
E-invoicing and digital reporting are not the same thing
E-invoicing is the structured creation, sending and receiving of the invoice between supplier and customer. Digital reporting is the transmission of specified invoice data to the tax authority. The same provider can perform both processes, but they have different legal purposes and different recipients.
The Slovak model is often described as a five-corner model: supplier; supplier’s service provider; customer’s service provider; customer; and Financial Administration as the reporting corner.
Passing structural validation does not mean the tax authority has accepted the VAT treatment, and delivery does not mean the customer has accepted the underlying goods, services or amount.
Will the control statement and VAT return remain required?
Yes during the 2027–2030 transitional phase. VAT payers continue to file the Slovak VAT return and, where applicable, the VAT control statement and recapitulative statement through 30 June 2030.
Under the enacted timetable, the control statement and recapitulative statement are abolished from 1 July 2030 when the broader digital-reporting framework begins. The VAT return is not abolished by the e-invoicing reform.
Will an electronic signature be required?
A qualified electronic signature or qualified electronic seal is not required for an invoice delivered through the Peppol-based certified service. Authenticity, integrity, identification and delivery evidence are supported by the certified service, Peppol transport controls and the company’s audit processes.
For a structured invoice delivered outside the Peppol service, a qualified signature or seal may be one method of protecting authenticity and integrity, but it is not the only method. Do not confuse logging into the Financial Administration portal, authorising a Digital Postman, authenticating a software user, and electronically signing a document. These are separate actions.
What information must the electronic invoice contain?
The document must include the invoice particulars required by Section 74 of the VAT Act and must pass the technical rules of EN 16931, the selected syntax and the Slovak Peppol profile. Core legal data generally include:
supplier name, address and relevant tax identifiers;
customer name, address and relevant tax identifier;
sequential invoice number;
date of issue;
date of supply or advance payment, when different and determinable;
quantity and type of goods or extent and type of services;
taxable amount, unit price and discounts not included in that price;
VAT rate or the applicable exemption;
VAT amount in the required currency presentation;
reverse-charge wording or other special-regime information where applicable; and
a reference to the original invoice for a correction.
Technical master data also matter. In the Slovak Peppol environment, DIČ is the primary participant identifier, using the Slovak scheme 0245. IČO identifies the legal entity, DIČ identifies it for general tax administration, and IČ DPH is used for VAT status. Purchase-order, contract, project and payment references may be necessary for the customer’s workflow even where they are not universal statutory VAT fields.
Foreign ERP teams should validate currencies, VAT category codes, reverse-charge logic, rounding, unit codes, Slovak diacritics, bank data and customer identifiers against the current Slovak validation rules.
What happens if the customer rejects the invoice?
Customer rejection can mean three different things:
technical rejection: the XML fails syntax, business-rule or endpoint validation and is not successfully delivered;
commercial rejection: the customer disputes the price, quantity, performance or contractual basis; or
tax/accounting correction: a delivered invoice contains data that must be corrected with a linked corrective document.
The Peppol network’s delivery of a valid invoice does not itself prove commercial acceptance. The official FAQ states that there is no separate statutory obligation to send a commercial rejection through Peppol. The parties should use their contractual dispute workflow, while any tax-document error is corrected through the legally appropriate structured corrective document.
How will credit notes and invoice corrections work?
A sent invoice should not simply be deleted from the audit trail. The corrective document must identify the original invoice and the fields that change. Depending on the facts and software support, the workflow may use:
a credit note linked to the original invoice, followed by a new correct invoice;
a compliant corrective invoice linked to the original; or
another legally appropriate debit or credit correction.
The Financial Administration currently describes the credit-note-plus-new-invoice route as a common and straightforward Peppol approach. The supplier should also ensure the correction is reflected consistently in accounting records, VAT reporting and customer communication.
How must electronic invoices be archived?
The structured electronic invoice must be retained for ten years from the end of the calendar year to which it relates. The company must preserve authenticity of origin, integrity of content and readability, and it must allow the tax authority access to electronically stored invoices for inspection, download and use.
Keep the original structured XML, its delivery evidence and relevant validation/audit records. A permanent PDF copy is not legally required if the company can render the XML into a human-readable form within a reasonable time when requested. A PDF can still be kept for convenience.
The archiving arrangement should answer who controls the archive if the provider or accountant changes; how files and audit logs are exported; whether access is available for the entire statutory period; how backups, retention locks and user permissions work; how invoice versions and corrections are linked; and how the company will provide Slovak-language information or translation during an audit when necessary.
Outsourcing storage does not remove the company’s need to ensure that the statutory archive remains complete and accessible.
Does the accountant automatically handle e-invoicing?
No. An accountant does not automatically become the company’s e-invoicing operator. The answer depends on the accounting-services agreement, portal authorisation, software, provider contract and agreed approval workflow. Confirm in writing whether the accountant will:
select or only recommend the delivery provider;
receive invoices or merely import approved invoices;
create outbound invoices or only account for them;
monitor technical failures;
correct master-data and VAT errors;
operate reporting and reconciliations;
maintain the archive; and
escalate disputed invoices and approaching deadlines.
The company may keep commercial approval internally while delegating tax review and bookkeeping. That division usually produces a better audit trail than giving one external person unrestricted control over every step.
What must the managing director remain responsible for?
The managing director should ensure that the company has an adequate process, competent providers, correct permissions and appropriate oversight. The director does not need to type every invoice personally, but should not assume that outsourcing removes the need for governance. At minimum, management should approve:
the legal scope analysis;
the provider and software architecture;
responsibility for invoice issuance, receipt and approval;
access rights and segregation of duties;
the process for technical incidents and disputed invoices;
reconciliations between the delivery system, ledger and VAT filings; and
periodic compliance review.
What software will a Slovak company need?
The company needs either an accounting/invoicing system integrated with a certified delivery provider or access to the provider’s web or mobile application. The right solution depends on invoice volume, ERP complexity, approval needs and group reporting. Assess software against these criteria:
EN 16931 and Slovak Peppol BIS compatibility;
capability to send and receive, not only generate a PDF;
connection to a provider in the Financial Administration’s certified register;
support for DIČ scheme 0245, IČ DPH and Slovak VAT category rules;
automated validation and understandable error messages;
API or native accounting/ERP integration;
multi-language and multi-currency operation;
invoice approval, duplicate detection and purchase-order matching;
credit notes, corrective invoices and references to originals;
user roles, audit trail and access from abroad;
secure export and ten-year archiving; and
an update commitment for 2030 ViDA changes.
Do not select software only because it says “Peppol enabled.” Confirm that it supports the Slovak profile, Slovak reporting corner, current validation rules and your specific transaction types.
What if the company uses foreign invoicing software?
A foreign ERP can continue to be used if it supports the Slovak legal and technical requirements or connects to a compliant local/provider layer. Country-neutral XML or generic Peppol support is not enough by itself. Ask the vendor:
Will you support Slovakia’s mandatory regime from 1 January 2027?
Which EN 16931 syntax and Peppol BIS version will you use?
How are Slovak-specific validation rules and DIČ scheme 0245 implemented?
Which certified Slovak delivery provider or intermediary will connect the system?
Can the system receive invoices and delivery statuses as well as send them?
How are invoice data reported to the Slovak Financial Administration?
How are credit notes, corrections, self-billing and advance payments handled?
Can the system reconcile provider delivery logs with the ledger?
Where is the structured original archived, and can it be exported if the provider changes?
What is the testing and production cutover plan?
Can the company continue issuing invoices from abroad?
Yes, the director or finance team may operate the software from abroad. The place from which a user clicks “send” is not the test for the Slovak e-invoicing obligation. The legal status of the invoicing entity and the transaction determine the scope.
Remote operation still requires secure access, formal user permissions, reliable identity/portal authorisation and a Slovak-compliant provider connection. Do not solve access problems by sharing personal authentication credentials.
What should a newly incorporated Slovak company do?
Confirm whether it is a VAT payer under Section 4, registered under Section 7 or 7a, or not VAT registered.
Appoint a Slovak accountant and document the service scope.
Select invoicing and accounting software suitable for the business model.
Check IČO, DIČ, IČ DPH, legal name, address, bank data and invoice sequence.
Select and authorise a certified delivery provider.
Configure issuance, receipt, approval, correction and reporting roles.
Test representative domestic and cross-border transactions.
Establish an exportable ten-year archive and incident process.
If the company still needs VAT registration, review ADVISON’s VAT registration service in Slovakia. VAT registration and e-invoicing are related projects, but they are not the same legal step.
What happens after buying a ready-made Slovak company?
The company keeps its legal identity, tax identifiers, invoice history and accounting records when its shareholder or managing director changes. The buyer must therefore take over the e-invoicing environment rather than create an unrelated clean account. The handover should cover:
the company’s exact VAT registration basis and VIES status;
its current accountant and accounting database;
the invoicing software and Digital Postman selection;
former directors’, employees’ and advisers’ user access;
existing customer and supplier master data;
current invoice number sequences and the last issued documents;
structured invoices already received, delivered or awaiting action;
bank accounts and payment instructions;
archive export, provider credentials and audit logs; and
the changeover date and responsibility for corrections.
Do not share the former user’s personal credentials. Give the new people formal roles and remove obsolete access after preserving the records needed for the audit trail.
Buying a company? Review the verified ADVISON pages for Slovak ready-made s.r.o. companies, VAT-registered ready-made companies and how the ready-made acquisition process works.
Buying a Slovak ready-made company? Make sure the handover covers not only the Commercial Register, VAT status and bank account, but also the invoicing system, accounting data, user permissions, incoming structured invoices and 2027 readiness.
Will e-invoicing affect VAT registration?
E-invoicing does not replace VAT registration and does not, by itself, make a company a VAT payer. The company still needs the correct registration under Section 4, 5, 7 or 7a based on its activities.
The registration category then helps determine the e-invoicing result. A Section 4 VAT payer may be a mandatory issuer for domestic supplies; a Section 7a non-payer is not automatically converted into a full VAT payer or mandatory issuer; and a non-established Section 5 registrant has the official transitional exception described above.
What are the consequences of non-compliance?
Section 85o provides penalties for failure to report required data through the delivery service, late reporting, incomplete data or incorrect data. The tax office may impose a fine of up to EUR 10,000, and up to EUR 100,000 for a repeated breach. The amount depends on seriousness and duration.
The Act also protects specific correction and outage cases. A fine is not imposed where an obvious error is corrected as described in the law, or where a demonstrable technical failure at the certified provider caused the delay and the data are reported without delay after the failure is removed.
These amounts relate specifically to the Section 85o reporting obligations. Other invoice, accounting, tax or procedural failures may have different consequences under the applicable rules. A technically invalid invoice may also fail delivery, delay customer approval or payment, create reconciliation problems and weaken the evidence for VAT treatment.
Five practical foreign-owner scenarios
Scenario 1 – Polish owner of a Slovak VAT-paying s.r.o.
The Slovak s.r.o. is registered under Section 4 and invoices Slovak business customers. The owner’s Polish nationality is irrelevant. Covered domestic invoices must be structured e-invoices from 1 January 2027. The company should select a provider, integrate its software, give the Slovak accountant defined permissions and keep commercial approval under an agreed workflow.
Scenario 2 – Slovak company using German invoicing software
The German system may remain the group’s front end, but the vendor must confirm Slovak EN 16931/Peppol validation, DIČ scheme 0245, certified-provider connectivity, inbound invoices, reporting, credit notes and archive export. If it cannot, the group needs a Slovak compliance connector or a provider portal before go-live.
Scenario 3 – UAE owner managing a Slovak company remotely
The owner’s residence does not exempt the Slovak s.r.o. The company’s VAT and transaction status determine the obligation. The director can manage the process remotely, while a formally authorised accountant or local finance operator handles daily receipt and tax review. Personal portal or authentication credentials should never be shared.
Scenario 4 – Foreign company registered for Slovak VAT
If the foreign company has no Slovak establishment and is registered only under Section 5, it is not required to issue or receive through the delivery service in the domestic transitional phase ending 30 June 2030. If it has a Slovak fixed establishment involved in the transactions or a Slovak subsidiary, the analysis changes. Confirm the registration basis rather than relying on the existence of an SK VAT number.
Scenario 5 – Slovak non-VAT company providing services to EU businesses
The company may be registered under Section 7a for cross-border services without being a full VAT payer. Its outbound cross-border service invoices are not brought into the 2027 domestic mandate merely by Section 7a registration. It should still be ready to receive covered domestic e-invoices from Slovak VAT suppliers. Existing reverse-charge, recapitulative-statement and Section 7a rules continue.
How should a foreign-owned Slovak company prepare?
Phase 1 – Legal and transaction mapping
Owner: managing director with Slovak accountant or tax adviser.
confirm the entity and exact VAT registration basis;
classify domestic B2B, B2C, B2G and cross-border flows;
identify exemptions, simplified invoices, advances and self-billing;
determine which entity in a group legally issues each invoice.
Phase 2 – Accounting and software review
Owner: finance lead and accountant.
document the current invoice-to-ledger process;
check vendor support for the Slovak regime;
decide whether to integrate the ERP or use a provider portal;
map IČO, DIČ, IČ DPH, VAT codes and correction types.
Phase 3 – Technical configuration
Owner: software provider, with finance sign-off.
select and authorise a certified Digital Postman;
configure Peppol endpoint and user roles;
implement outbound, inbound, status and reporting messages;
configure exportable archiving and audit logs.
Phase 4 – Testing
Owner: finance team and accountant.
test domestic goods, services, advances and credit notes;
test non-VAT recipients and public-sector customers;
test cross-border transactions that remain outside the first phase;
test invalid data, duplicate invoices and provider outages.
Phase 5 – Go-live controls
Owner: managing director.
freeze and verify production master data;
publish the cutover date and escalation contacts;
reconcile sent, delivered, received, posted and reported items;
remove obsolete users and secure credentials.
Phase 6 – Ongoing compliance
Owner: finance and accountant, under management oversight.
monitor rejected or undelivered documents;
reconcile delivery logs, accounting and VAT filings;
review access and provider performance periodically;
track Financial Administration technical updates and the 2030 ViDA phase.
Common mistakes foreign-owned companies should avoid
Treating an emailed PDF as the compliant structured original.
Assuming foreign ownership or a foreign director creates an exemption.
Assuming every holder of a Slovak VAT number has the same 2027 result.
Waiting until January 2027 to ask the ERP vendor about Slovak support.
Assuming the accountant automatically owns the entire process.
Confusing e-invoicing with digital reporting, the VAT return or control statement.
Using generic Peppol functionality without Slovak profile and reporting support.
Mixing IČO, DIČ and IČ DPH in customer or supplier master data.
Configuring outbound invoices but ignoring inbound receiving capability.
Sharing personal credentials instead of granting formal permissions.
Leaving former directors or advisers with unnecessary access after a transfer.
Keeping only a visual PDF and losing the structured original or audit trail.
Treating secondary statements about a grace period as enacted law.
What should I do if my company is not ready when mandatory e-invoicing starts?
Do not continue issuing affected invoices blindly. Use this order of action:
Identify the in-scope domestic invoices and incoming supplier flows.
Contact the Slovak accountant or tax adviser and confirm the entity’s VAT status.
Contact the invoicing/ERP provider and obtain a written readiness answer.
Check the official certified-provider list and select the fastest suitable provider route.
Establish inbound receiving capability first so supplier invoices are not lost.
Document temporary approval, reconciliation and incident controls.
Validate every temporary invoice route against the structured-format and consent rules.
Obtain transaction-specific tax advice where place of supply, fixed establishment or exemption is unclear.
Do not assume missed obligations or penalties will be waived automatically. If an affected invoice has already failed, preserve the error logs, correct the document promptly and document any provider-side technical outage.
Need a Slovak company, VAT and e-invoicing readiness review?
Tell ADVISON whether the Slovak company already exists; whether it is VAT registered and under which registration basis; which countries and customer types it invoices; whether it issues B2B, B2C or B2G invoices; which accounting and invoicing software it uses; whether it is newly incorporated or acquired as a ready-made company; and whether you need VAT registration, accounting onboarding coordination or a readiness review.
ADVISON can then identify the relevant Slovak company and VAT setup and help define the next advisory steps. This is not a promise that ADVISON supplies or technically implements the Digital Postman software. Contact ADVISON with the facts above.
Frequently asked questions
Is mandatory e-invoicing in Slovakia confirmed for 2027?
Yes. Act No. 385/2025 Coll. enacted the domestic transitional regime from 1 January 2027. It applies through 30 June 2030 before the broader ViDA-aligned phase begins.
Does a foreign-owned Slovak company have to use e-invoicing?
Yes, if the Slovak company is a VAT payer under Section 4, 4b or 4c and makes a covered domestic supply. Foreign ownership or a foreign managing director does not create an exemption.
Is a PDF invoice sent by email sufficient?
No for an in-scope mandatory transaction. The legal electronic invoice must be structured and machine-processable under EN 16931; a PDF may be attached only as an optional visual copy.
Will non-VAT companies have to issue electronic invoices?
Not under the mandatory issuance rule in Section 85o(2), which applies to VAT payers under Sections 4, 4b and 4c. A Slovak non-VAT business must still be capable of receiving covered electronic invoices from those suppliers.
Will a foreign company registered for Slovak VAT be included?
It depends on the registration. A non-established foreign person registered only under Section 5 is outside the mandatory issuance and delivery-service receiving rules during 1 January 2027–30 June 2030. A Slovak subsidiary or relevant fixed establishment is analysed differently.
Will e-invoicing apply to cross-border invoices in 2027?
The first phase is domestic. Relevant cross-border B2B e-invoicing and digital reporting expand from 1 July 2030 under the current ViDA-aligned timetable. Existing cross-border VAT rules remain applicable until then.
Will B2C invoices be included?
No. Domestic invoices to final consumers are outside the 2027 transitional mandate. Existing B2C, eKasa and ordinary invoicing rules continue where relevant.
What is the difference between e-invoicing and digital reporting?
E-invoicing sends the structured invoice from supplier to customer. Digital reporting sends specified invoice data to the Slovak Financial Administration. They may occur through the same provider but are legally distinct processes.
Will Slovakia use Peppol?
Yes. Slovakia’s certified delivery-service model uses Peppol as the recognised European delivery standard. Another structured delivery method is legally possible with the recipient’s consent, but Peppol is the default operational route.
Does an e-invoice require a qualified electronic signature?
No when it is delivered through the Peppol-based certified service. Outside that service, a qualified signature or seal may be one way to protect authenticity and integrity, but it is not the definition of an e-invoice.
Can my accountant issue and receive electronic invoices?
Yes, if the accountant has the required formal authorisation, software access and contractual mandate. Access and responsibility are not automatic merely because the person keeps the company’s books.
Can I use foreign invoicing software?
Yes if it supports the Slovak EN 16931/Peppol profile, certified-provider connection, DIČ identifiers, inbound invoices, reporting, corrections and exportable archiving. Generic PDF or generic Peppol support is insufficient.
Will the control statement remain required?
Yes through 30 June 2030 where the company is otherwise required to file it. Under the current enacted timetable it and the recapitulative statement are abolished from 1 July 2030. The VAT return remains.
How must electronic invoices be archived?
The structured original must be retained for ten years from the end of the calendar year to which it relates. The company must preserve authenticity, integrity, readability and tax-audit access.
Can a foreign director manage the process remotely?
Yes. Remote location does not change the company’s legal obligations. Use secure, formal user permissions and an authorised accountant or adviser where appropriate; do not share personal credentials.
What should I check after buying a ready-made company?
Check the VAT registration basis, provider and software, invoice sequence, accounting database, structured archive, bank data, incoming invoices and every former user’s access. Preserve the audit trail before removing obsolete permissions.
What happens if the company is not technically ready?
Identify affected invoices immediately, secure receiving capability, contact the accountant and software provider, select a certified provider, document failures and correct non-compliant documents promptly. Do not assume a general penalty waiver.
