- File
- Dz.U. 2021 poz. 1598
- Jurisdiction
- PL
- In force
- 2026-02-01
- Scope
- Structured e-invoicing
KSeF is not coming.It is here.
Every Polish VAT payer now issues invoices through the national system. An invoice KSeF rejected was never issued, a mistake nobody noticed becomes a penalty from 2027, and the duty does not care how small the company is.
Check one invoice, free
Paste the FA invoice XML your software produced. The check reads structure, NIP checksums, required fields and sum consistency - the mistakes that come back as rejections.
- 1 Feb 2026
Large taxpayers in
Over PLN 200M turnover: structured invoices through KSeF only. In force.
- 1 Apr 2026
Everyone in
Every remaining VAT payer issues through KSeF. In force.
- 1 Jan 2027
Penalties start
The grace period ends: fines for invoicing outside KSeF and for errors.
All Polish statutory dates, with alerts: the compliance calendar
The rejection queue, watched
A rejected invoice is legally not issued. The desk triages every rejection the day it happens and names what to fix.
Errors named while they are free
From 2027 mistakes cost money. Until then they only cost attention, and the desk pays it for you, with a monthly summary your accountant reads.
KSeF Desk, $79/month
Both directions watched, rejections triaged daily, a person behind every judgement. Cancel any month.
Tell us about your invoicing
Your invoicing software, rough monthly volume, and who does it today. We reply with a start date.
See where you stand today.
Give it an address and the scan reports what this law would look at: what fails, the criterion behind each failure, and what putting it right costs.
No account. One page, about twenty seconds.