Time until mandatory e-invoicing
From 1 Jan 2027, every Slovak company must issue and receive B2B invoices electronically via the PEPPOL network.
How it works
From sign-up to your first sent e-invoice in minutes.
Sign up
Create a free account. The FREE plan is forever, no credit card.
Connect to the PEPPOL network
We register you as a participant via our accredited Access Point. No infrastructure of your own.
Issue and send an invoice
Fill in the form or send via API. We generate valid UBL 2.1 and deliver over AS4.
Track delivery status
MLS acknowledgements, IS EFA reporting and payment matching run automatically.
Built on standards
UBL 2.1, PEPPOL BIS 3.0, AS4 protocol, EN 16931 validation and §74 of the Slovak VAT Act.
§74 validation
Every invoice is automatically validated against the VAT Act, EN 16931 and the PEPPOL BIS 3.0 Schematron.
PEPPOL Access Point
Oxalis-NG AS4 implementation. Accredited PEPPOL Access Point for Slovakia in the Slovak Tax Authority register (since 04/2026). Successfully passed OpenPeppol eDelivery testbed (6/6) + Slovakia Billing.
Real-time delivery
The invoice reaches the recipient through the PEPPOL network instantly after validation. MLS confirmations (AP/RE) happen automatically.
Financial overview
Revenue, costs, VAT breakdown by rate, open balances and overdue invoices — in real time.
AI reads invoices for you
Upload a PDF or photo and AI automatically extracts the supplier, amounts, IBAN and line items.
AI reads invoices from PDF or photo
Upload a PDF or take a photo of a paper invoice. Google Gemini AI extracts the supplier, Reg. No., VAT No., amounts, IBAN, variable symbol and line items. Accuracy on native PDFs over 95%.
Try AI
Address book with 1.3M Slovak companies
Type a few letters of the company name and the system pulls Reg. No., Tax No., VAT No. and address from the Slovak Financial Administration register. Data refreshed daily at 03:00.
Try autocomplete
Automatic payment matching
Upload a bank statement (CSV, CAMT.053, Revolut XML) or connect your bank via Open Banking. Payments are matched to invoices by variable symbol, IBAN and amount.
Try matching
Slovak legislation compliance
Built around the VAT Act, EN 16931 and Slovak Financial Administration requirements.
§74 VAT Act validation
Each invoice is automatically checked — required fields, dates, Reg. No., VAT No., VAT rates, totals. Catch errors before sending.
Accredited PEPPOL Access Point
Thinkio s. r. o. is officially accredited as a delivery service provider listed by the Slovak Financial Administration. Oxalis-NG AS4 infrastructure, UBL 2.1, Peppol BIS Billing 3.0.
Ready for IS EFA reporting
From 1 Jan 2027 every B2B invoice must be reported to the Slovak Financial Administration. Fakturix will do this automatically on send / receive.
Security, GDPR and EU data residency
AES-256 encryption of sensitive data, TLS 1.3, 2FA (TOTP + Email), OAuth2, immutable audit log. Hosted on AWS Frankfurt (eu-central-1). ISO 27001 documentation ready for certification.
Who Fakturix is for
Built for many types of businesses and professionals.
Freelancers
The FREE plan gives you unlimited PEPPOL inbound, 3 issued invoices per month, 120-day retention and a free accountant seat. Exactly what a small freelancer needs to get started.
B2B companies
Automatic PEPPOL sending, IS EFA reporting to the Slovak Financial Administration, accounting export. Multi-user access and branches.
E-shops
Ready-made plugins for WooCommerce, PrestaShop, Shopify and Shoptet. Invoices are auto-issued for every order — B2B via PEPPOL, B2C as PDF by email.
Accounting firms
One dashboard for all clients. Invite the client by email, get access and process invoices for many companies in one place.
ERP integrators
SAPI-SK compatible REST API, OAuth2, webhooks, idempotency keys. Integrate Fakturix into your own software or migrate clients from other providers.
Transparent pricing
Start for free. No long-term commitment — change or cancel any time. Your accountant is free on every plan.
FREE
- Unlimited PEPPOL inbound invoices
- 3 issued invoices / month
- 5 contacts in address book
- PDF export and email sending
- Mobile app (iOS)
- Accountant connected for free
- Invoice retention 120 days
- PEPPOL outbound €0.50/invoice (pay-as-you-go)
Start free
For starting freelancers preparing for SK e-invoicing 2027
STARTER
- Unlimited issued invoices
- 20 PEPPOL invoices / month included (€0.15/invoice above quota)
- Unlimited contacts
- Send invoices by email
- Dashboard + open balances + recurring invoices
- Export: Pohoda, Money S3, KROS, SuperFaktúra, MKsoft, ABRA Flexi, ISDOC, CSV
- SAPI-SK API (ViDA CTC 2027)
- Bank statements (CSV, CAMT.053)
- Unlimited retention
- 2 users + accountant free
Start with Starter
For starting small businesses
PRO
- Everything in Starter + unlimited invoices
- AI OCR 100 documents/mo free, then €0.05/doc
- PEPPOL outbound 100/mo free, then €0.10/invoice
- Telegram and WhatsApp bot
- E-mail scanner (IMAP) — auto-import inbound invoices
- E-shop integrations (WooCommerce, PrestaShop, Shopify, Shoptet)
- Bank integrations + automatic payment matching
- Branches, multiple number sequences
- 5 users + accountant free
Choose Pro
For active SMBs and e-shops
BUSINESS
- Everything in Pro
- AI OCR 500/mo free, PEPPOL 500/mo free + €0.05/invoice above quota
- Multi-branches and multi-company (for holdings)
- Advanced reports and controlling
- Audit log export
- Phone support + priority email (SLA 24h)
- 10 users + accountant free
Choose Business
For larger companies and multi-branch operations
ENTERPRISE API
- Everything in Business
- Enterprise SAPI-SK API (higher rate limit, SK Tax webhook events)
- Webhook queue + OAuth2 server for third-party integrators
- Idempotency keys + retry guarantee
- Sandbox + production environments separated
- Integrator mode (multi-tenant via one API key)
- Billed only per sent PEPPOL invoice (volume-based pricing)
- Inbound PEPPOL invoices free of charge
- Dedicated phone line + technical contact (SLA 4h)
- Custom DPA and contract terms
- Unlimited users
Contact sales
API solution for integrators and ERP systems
Enterprise API and SAPI-SK
A standardized REST API for ERP, accounting software and e-shop integrations. Fakturix implements the full SAPI-SK specification — the same interface accepted by multiple Slovak providers, so migrating between them is trivial.
- SAPI-SK compatibleOfficial SK specification for a standardized AP interface
- OAuth2 + API keysTwo ways to authenticate for different use cases
- Webhook queuePull and push model — the ERP chooses how to receive events
- Integrator modeAn accounting firm accesses many clients' invoices through one API key
- Idempotency keysSafe retries during network failure without duplicate invoices
Blog
News about e-invoicing and PEPPOL in Slovakia

Penalties for E-Invoicing Violations from 2027: Sanctions Overview and How to Avoid Them
Zákon č. 385/2025 Z. z. zavádza za porušenie povinnej e-fakturácie pokuty až do 10 000 € pri prvom a až do 100 000 € pri opakovanom porušení. Prehľad sankcionovaných porušení, časový rámec — a ktoré z týchto rizík za vás automaticky rieši akreditovaný poskytovateľ.

How to Create and Send an E-Invoice via PEPPOL: Step-by-Step Guide (2026)
Praktický návod, ako v roku 2026 vystavíte a odošlete svoju prvú e-faktúru cez sieť PEPPOL — od výberu digitálneho poštára na portáli Finančnej správy cez vyplnenie povinných náležitostí až po doručenku a automatické hlásenie do IS EFA. Píšeme z prevádzky akreditovaného Access Pointu.

E-Invoicing 2027 and Sole Traders: Do You Have To? A Guide for Non-VAT Payers
Povinná e-fakturácia od 2027 sa týka platiteľov DPH. Čo to znamená pre živnostníkov a malé firmy pod limitom 50 000 € obratu? Kedy sa vás povinnosť (zatiaľ) netýka, kedy vás dobehne — a prečo sa oplatí naučiť sa e-faktúry prijímať skôr, než budete musieť.
Frequently asked questions
Answers to the most common questions about Fakturix and electronic invoicing.
Start for free
Full PEPPOL BIS3 SK support, IS EFA reporting, multi-tenant, AI data extraction. Built for the Slovak B2B market.
Write to us
We respond within 24 hours on business days.
Office
thinkio s. r. o.
Námestie Slov. národ. povstania 270/3
917 01 Trnava
Response
within 24 hours
on business days