Practical KSeF articles: deadlines, exemptions, offline modes, invoice errors and daily e-invoice workflows for companies and accounting firms.
Find out which document you receive after refuelling, when to look in KSeF and how to collect an invoice issued later against a receipt.
See what really shapes a manufacturing company's KSeF budget: data, ERP, APIs, testing, maintenance and internal team time.
LiveKid provides a PDF invoice, PDF correction and settlement, but does not send them to KSeF. See how to turn a PDF into FA(3) XML and submit the invoice to KSeF.
Check when reducing a KSeF invoice to zero is justified, and when it is safer to correct the specific error instead of creating unnecessary VAT risk.
Structured invoices can become a clean source of customer and supplier data. See which fields to collect, how to avoid duplicates and where the KSeFGPT Counterparties module fits into the process.
A practical scenario for restaurants, catering and chains: B2B invoices, receipts with NIP, suppliers, corrections, UPO and document-flow control.
Learn when an invoice outside KSeF is an exemption, when it is an offline mode and when it becomes a compliance risk.
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.
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.