Practice

Practical KSeF articles: deadlines, exemptions, offline modes, invoice errors and daily e-invoice workflows for companies and accounting firms.

Articles and instructions

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Receipt with NIP after 1 January 2027 - the end of simplified invoices outside KSeF

See which 2026 transitional rules are expected to expire, when KSeF will cover the smallest taxpayers, and how to distinguish a receipt with NIP from a simplified invoice.

PracticeMay 21, 2026

How to Issue an Invoice for a Private Individual in KSeF? A Practical 2026 Guide

B2C invoices in KSeF are voluntary – but how does it work in practice? We answer the most common questions: should you send a PDF, how does the QR code work, and what about the PLN 10,000 limit.

GuidesMarch 26, 2026