About the project
eFaktúry.sk is a website for sole traders and small limited companies (s.r.o.) in Slovakia. It covers invoicing, mandatory electronic invoicing and what to expect when starting a business. Figures from legislation are checked against official sources, and each page shows the date it was verified.
At its core are free tools that work without registration and calculate directly in your browser: a VAT calculator, a PDF invoice generator, a Pay by Square payment QR code generator, a due date and late payment interest calculator, a comparison of flat-rate and actual expenses, an invoice requirements checklist, invoice templates and a tax calendar you can add to your own calendar.
Alongside the tools there are expert articles on invoicing, e-invoicing, taxes and VAT, trade licences, setting up an s.r.o. and travel expenses, a glossary of business terms and a Rates and deadlines page with tables of rates, contributions, thresholds and tax deadlines. Those just starting out can follow the Entrepreneur's Path, a step-by-step plan from idea to a working business.
What you will find
- Invoicing
- E-invoicing
- Taxes and VAT
- Sole trader licence
- Setting up a company
- Travel orders
- Invoicing software
- Rates and deadlines
- Free tools
- Entrepreneur's Path
- Glossary
How to search
- For a quick calculation, open the tools section, for example the VAT calculator or the due date and late payment interest calculator.
- If you need an invoice right away, fill in the Invoice generator and download it as a PDF; you can create a payment QR code with the Pay by Square generator.
- Look up specific rates, thresholds and deadlines on the Rates and deadlines page, where every table links to an official source and shows the date it was verified.
- Add tax deadlines to your calendar using the .ics file from the Tax calendar.
- If you are only considering starting a business, begin with the What business should I start? quiz and continue with the Entrepreneur's Path.
Frequently asked questions
When does e-invoicing become mandatory in Slovakia?
From 1 January 2027, VAT payers must issue e-invoices for domestic transactions with businesses and public administration, and all businesses must be able to receive them. 2026 is a transition period.
Are the tools on eFaktúry.sk free?
Yes, all tools are free and require no registration. Calculations run in the browser and no data is sent to the server.
By when must an invoice be issued?
An invoice must be issued within 15 days of delivery or receipt of payment.
When do I have to register as a VAT payer?
At a turnover of 50,000 € per calendar year. If you exceed 62,500 € during the year, registration is required immediately.
