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Issue and receive KSeF invoices for free with no limits. When a client is late, activate a paid tier to automate reminder sequences.
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Poland's National e-Invoice System (KSeF) becomes mandatory from April 1, 2026 for most Polish businesses. Every invoice must be issued and transmitted through KSeF as a structured electronic invoice. Companies with monthly revenue below 10,000 PLN have until January 1, 2027. Regardless of your company size, prepare early. Terminovo lets you start issuing KSeF invoices today, completely free.
An e-invoice (electronic invoice) in the KSeF system is a structured XML document transmitted through Poland's National e-Invoice System. Unlike a regular PDF, it has a strictly defined format, is automatically validated, and receives a unique identification number (UPO). Terminovo supports issuing KSeF invoices fully compliant with Ministry of Finance requirements. Just fill in the form. The system generates a valid invoice and sends it to KSeF.
Looking for invoicing software that supports KSeF? Terminovo is a modern tool combining free KSeF invoicing with automated payment recovery. Issue unlimited electronic invoices, receive invoices addressed to your NIP, and monitor payments, all in one place. Unlike typical invoicing software, Terminovo also ensures your invoices get paid on time.
Practical guides and analyses to help you prepare for mandatory KSeF.
Step by step: what you need to do before April 1, 2026.
How to combine e-invoicing with automated payment recovery.
From February 1, 2026 you must receive invoices via KSeF. Are you ready?
The most common errors and how to avoid them.
More than invoicing
Most invoicing software stops the moment you hit send. Terminovo makes sure the money actually lands in your account, with no manual work and no awkward conversations.
When payment is overdue, Terminovo sends reminders to the client based on your active plan (Starter, Professional, or Business) and schedule.
Client needs more time? They can commit to a specific payment date. Terminovo tracks the deadline automatically and follows up, without involving you.
One view: who paid, who's late, and how much money is waiting. No more spreadsheets, no more manually checking bank transfers.
Knowledge hub
Guides, articles, and tools to help your business get ready for mandatory KSeF e-invoicing, all in one place.
A comprehensive, step-by-step guide to KSeF implementation. From registering in the system to issuing your first structured invoice.
The basics and key definitions for those new to Poland's National e-Invoice System. Learn what it means for your business.
Six quick questions that reveal how prepared your business is for the upcoming changes. Takes less than 2 minutes.
Up-to-date articles, regulatory updates, and practical advice on KSeF, written for business owners and accountants.
Pricing
KSeF invoicing is always PLN 0 with no limits. Client reminder sequences are available in Starter, Professional, and Business plans.
Issue and receive KSeF invoices at no cost. No document limits. No monthly subscription. Forever.
Automated reminders to clients are available in Starter (PLN 49/mo), Professional (PLN 119/mo), and Business (PLN 499/mo). Cancel anytime.
Free = you see overdue invoices. Paid tiers = your clients receive reminders.
FAQ
Everything you need to know about free KSeF invoicing in Terminovo.
KSeF (Krajowy System e-Faktur, Poland's National e-Invoice System) is the government platform for issuing and receiving invoices in a standardised electronic format. From February 1, 2026, every Polish business must already receive invoices through KSeF. From April 1, 2026, the obligation extends to issuing invoices for all VAT taxpayers. Companies that don't comply face penalties of up to 100% of the VAT amount shown on the invoice (enforced from 2027).
Yes, completely. Issuing and receiving KSeF invoices in Terminovo is free: no document limits and no hidden fees. Collection automation is available from PLN 49/mo (Starter plan).
No. You can start using Terminovo just for KSeF invoicing and decide later whether to move your full account. If you have invoices issued elsewhere, you can import them. We put no obstacles in your way. Start when you want, with as much or as little as you like.
When payment is overdue, Terminovo can automatically trigger a reminder sequence to the client (email and SMS). Starter is PLN 49/mo (15 sequences), Professional is PLN 119/mo (75 sequences), Business is PLN 499/mo (unlimited). Cancel anytime.
Yes. You can start KSeF invoicing on the Free tier without a credit card. Payment details are only needed when you activate a paid reminder tier.
Payment recovery included. No credit card.
Payment recovery included. No credit card.