Questions and answers

Sole traders in Poland (JDG) who invoice other businesses, especially clients abroad. Many of our users are foreigners who run their business in Poland and would rather work in English. Fiskora works just as well in Polish.

Yes. Fiskora handles invoices and KSeF. It does not do bookkeeping, JPK files, ZUS or tax returns. Your accountant gets a free read-only login to see and download your invoices.

Almost certainly. Since 1 April 2026 businesses in Poland, VAT-exempt sole traders included, have to issue invoices through KSeF, and since 1 February 2026 everyone receives invoices there. Very small sellers (up to 10,000 zł of invoices a month) may issue outside KSeF until the end of 2026. See KSeF deadlines.

With a KSeF certificate. You generate it yourself in the Ministry of Finance's KSeF app, then upload it to Fiskora. It is stored encrypted, and you need two-factor login turned on first. How to get a KSeF certificate.

Yes. Pick any currency. Fiskora takes the NBP table A rate from the last business day before the sale date, shows the VAT amount in złoty where the law requires it, adds the reverse-charge note for services to foreign businesses and can print the invoice in Polish and English.

Once an invoice is in KSeF it cannot be deleted, only corrected. Fiskora issues a correction invoice (faktura korygująca) linked to the original. That's why every invoice goes through a review page before it is sent.

Fiskora keeps the invoice and retries sending until KSeF accepts it. You can watch the status of each invoice. KSeF outages announced by the Ministry are covered by the KSeF offline rules; ask your accountant if you're unsure how they apply to you.

19 zł net a month, or 190 zł net a year. One plan, up to 300 invoices and corrections a month for one company (one NIP), and a free accountant login. Your first real invoice is free.

By card, Apple Pay, Google Pay or Link. Payments are processed by Stripe through its reseller Link, LLC, which sells the subscription to you and issues the invoice or receipt for it. Ask your accountant how to book a foreign invoice in your case.

Yes. Your plan runs to the end of the period you paid for. After that your account becomes read-only: you can still view, download and export every invoice. Nothing is deleted unless you ask.

Your first real invoice sent to KSeF is free, once per company. Drafts and PDF previews are always free.

On servers in Germany, with encrypted backups in the EU. See the privacy policy for the full list of providers we use.

Yes, at any time: a ZIP with every invoice as PDF and KSeF XML, plus a CSV list. Your invoices also stay in KSeF itself.

Yes. The data processing agreement is part of the terms, so you conclude it when you create your account.