KSeFGPT
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You started a business to do your work - not to retype invoices into KSeF

KSeFGPT reads invoices from PDF, Excel, XML, CSV, or a photo and sends them to KSeF with one click. Your evenings and weekends stay yours.

Upload your first invoice for free

Powered by the same class of AI as ChatGPT. You drop in a file, artificial intelligence does the rest.

We help businesses handle KSeF, and we'll help you too

This is what KSeF looks like when it works without stress. Focus on growing your business, not fighting the system.

  • Z pełnym przekonaniem polecamy narzędzie ksefgpt.pl, stworzone przez Flippico Sp. z o.o., do sprawnej i bezbłędnej obsługi e-faktur. Wykorzystaliśmy tę aplikację do wdrożenia masowej wysyłki faktur do KSeF w formacie samofakturowania, w czym świetnie pomogły nam dostarczone demo i czytelne…

    SmartLunch Sp. z o.o.

    Maciej Bednarski

    CFOSmartLunch

  • Zdecydowanie polecam aplikację ksefgpt.pl! Narzędzie wyróżnia się pełną bezbłędnością w konwersji faktur z formatu PDF na pliki XML oraz oferuje niezawodną, automatyczną wysyłkę do KSeF. Szczególnie doceniamy przydatny podgląd faktur w docelowym formacie jeszcze przed ich ostateczną wysyłką. Daje…

    ZATECH S.C.

    Jarosław Walenciej

    Właściciel

  • Z pełnym przekonaniem polecamy aplikację ksefgpt.pl. W sektorze NGO każda optymalizacja procesów administracyjnych jest na wagę złota, a narzędzie to niesamowicie ułatwiło nam wejście w nowy system rozliczeń. KSeFGPT gwarantuje bezbłędną konwersję faktur z PDF do XML oraz ich automatyczną wysyłkę…

    Katarzyna Neumann Sobczak

    Prezes Zarządu

Free KSeF Tools

Tools available online without creating an account

Structure and XSD schema validation

Try the validator

AI data extraction from PDF

Try the free PDF converter

Simple form with seller, buyer and invoice line items. Fill in and download XML in seconds.

Try KSeFGPT for free

Upload the original invoice XML, choose a line-item correction or cancellation to zero, and download the corrective invoice XML.

Prepare correction XML

Generate a readable PDF from KSeF XML invoice

Try the free XML to PDF converter
Watch on YouTube how AI Assistant automates work with KSeF

Talk about invoices like with an accountant

Ask in natural language, get concrete answers.

KSeFGPT understands your questions about invoices, contractors and tax data. No need to search for information outside the app.

See how to send a PDF invoice to KSeF on YouTube with sound

Full invoice handling in KSeF

Incoming and outgoing invoices compliant with KSeF FA(3) in one place.

Send invoices to KSeF in bulk or individually. Import from PDF, XML, CSV and XLS (Excel) files. Issue corrections and download invoices in different languages.

Send it to your foreign counterparty in their language
KSeFGPT

Integrations that make work easier

Connect KSeFGPT with the tools you already use.

Connect KSeFGPT with Slack, Telegram, email, Google Sheets, and Fakturownia.pl. Notifications, exports, and documents flow automatically without repeatedly logging into KSeF.

  • You always know first - new invoice notifications go straight to your phone or messenger.
  • Your team acts immediately - accounting, sales and management get documents automatically, without KSeF access.
  • Fakturownia.pl without re-keying - import revenue and expenses through the API, including self-invoicing submissions.
  • Webhooks = your automations - connect KSeFGPT with CRM, ERP or spreadsheet, no developer needed.

Simple Pricing

Choose the plan that fits your business needs

What is KSeF?

KSeF (Krajowy System e-Faktur) is Poland's national electronic invoicing system, mandatory for all businesses since 2026. It enables the issuance, storage, and exchange of structured invoices in XML format. Every invoice issued goes through KSeF, receiving a unique KSeF number. The system ensures invoice authenticity, reduces VAT fraud, and simplifies tax reporting.