KSeF integrations

KSeF integration without chaos or invoicing downtime

We connect your company to the Polish National e-Invoicing System (KSeF) and link it with your ERP, CRM or accounting software — structured invoices are sent automatically, and you stay compliant with the law.

Invoices accepted this month
0
0+
Companies with a live KSeF integration
Key advantages

Everything you need to roll out KSeF

Cut manual work and the risk of mistakes — meet the legal obligation without stopping sales or invoicing.

Live before the next deadline

Ready-made connectors to popular ERP and accounting systems let you go live with KSeF in weeks, not months.

Zero manual invoice entry

Invoices generated in your system reach KSeF automatically, and confirmations (UPO) and statuses come back without re-typing data.

Grow without compliance worries

Track the status of every invoice and changes to the Ministry of Finance's rollout schedule before they become a problem.

HOW WE WORK

Invoices that send themselves

Your team issues an invoice in the system they already use, and the integration submits it to KSeF, tracks its status and stores the reference number.

Book a consultation
1

Automatic issuing and sending of structured invoices

Invoices in the FA(3) format go straight to KSeF from your ERP, CRM or accounting software — no exports, no manual file uploads.

2

Integration with your ERP, CRM or accounting system

We connect KSeF to the system you already run — counterparty, product and invoice data stays in one place.

3

Secure authentication — qualified signature and company seal

We support authorisation via qualified signature, company seal or KSeF token, in line with Ministry of Finance requirements.

Use cases

KSeF integration tailored to your company

Whether you issue a handful of invoices a day or handle accounting for several companies — we scale the KSeF integration to fit your systems.

Automatic sending and receiving of invoices

Sales invoices are submitted to KSeF automatically, and purchase invoices from your suppliers are pulled straight into your system.

Get in touch

Compliance with the law and statutory deadlines

We track changes to the rollout schedule and invoice schema so the integration always matches current requirements.

Get in touch

Integration with ERP and accounting systems

We connect KSeF to systems such as your ERP, CRM or accounting software — no more entering data twice.

Get in touch
Let's talk about your project
Solutions aligned with the Ministry of Finance's KSeF rollout schedule
What our clients say

This is what companies say about our KSeF integrations

Example feedback from clients for whom we delivered similar National e-Invoicing System integrations.

01/03
We handle invoices for dozens of clients at once, and the KSeF integration tracks statuses and confirmations on its own no extra headcount needed.
Robert W.
Aleksandra P.
Marek S.
Robert W.Owner, accounting office

Frequently asked questions about KSeF integration

Answers to the questions we hear most often when implementing an integration with the National e-Invoicing System.

Event
Conversion to the FA(3) format
Signature and submission to KSeF
Reference number and confirmation (UPO) stored
Result

When does KSeF become mandatory for my company?

The obligation to use KSeF is being rolled out in stages according to the Ministry of Finance's schedule. We'll check which deadline applies to your company and plan the rollout with enough lead time.

Will the integration connect to my current ERP or accounting system?

Yes — we integrate KSeF with the systems you already use, so you keep issuing invoices as before while sending and receiving through KSeF happens automatically in the background.

What happens when KSeF is unavailable?

We implement offline24 and emergency invoicing support, so a Ministry of Finance system outage never stops your sales.

Can I manage invoices for multiple companies from one panel?

Yes — for accounting offices and capital groups we build integrations that handle multiple entities and permission sets from a single shared panel.

KSeF integration built around you

Ready for a system that gets you ready for KSeF?

We'll build a National e-Invoicing System integration tailored to your ERP, CRM or accounting software — matched to the deadline that applies to your company.

Didn't find what you're looking for?

Maybe you need something else?

See a sample list of systems we build for different areas and industries.

See all systems