How to choose a CRM for your small business: contacts, deals and tasks
Keep customer information and next steps organized. Find out what your team should test before buying and how to prepare for the move from Excel.
PracticeOctober 2, 2026
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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ORLEN and KSeF. What do you get at checkout, and where is the actual invoice?
For a business purchase, the checkout confirmation helps you find the invoice in KSeF. We explain ORLEN S.A.'s procedure, the role of the QR code and how fleet billing differs.
PracticeOctober 1, 2026
Fakturownia data breach - what should you do?
What to check after the Fakturownia incident: passwords, API tokens, account access, and bank details on invoices. Findings and actions as of September 29, 2026.
PracticeSeptember 29, 2026
How to give your accountant access to KSeF invoices
Compare accountant access in Fakturownia, IFIRMA and wFirma. See how to share invoices through a KSeFGPT organization and permission groups.
PracticeSeptember 14, 2026
AMIC petrol station and KSeF. Why can a cash-register invoice stay outside the system while a payment-terminal invoice is in KSeF?
Find out which document you receive after refuelling, when to look in KSeF and how to collect an invoice issued later against a receipt.
PracticeSeptember 7, 2026
At which petrol station will you not receive a KSeF invoice?
Find out when your fuel invoice goes to KSeF and when you need to keep the document received at the station.
PracticeSeptember 6, 2026
How Much Does KSeF Implementation Cost in Manufacturing?
See what really shapes a manufacturing company's KSeF budget: data, ERP, APIs, testing, maintenance and internal team time.
PracticeJuly 14, 2026
From LiveKid to KSeF: PDF invoices and settlements
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.
Practice2 July 2026
Zero correction in KSeF and VAT dispute risk
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.
PracticeJune 19, 2026
How to Build a Contractor Database from KSeF Invoices Without Losing Customer Data
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.
PracticeJune 3, 2026
KSeF in Restaurants: How to Prepare Invoices, Receipts and Multiple Locations
A practical scenario for restaurants, catering and chains: B2B invoices, receipts with NIP, suppliers, corrections, UPO and document-flow control.
PracticeMay 28, 2026
KSeF 2026: old-style invoicing without penalties, but with 2027 risk
Learn when an invoice outside KSeF is an exemption, when it is an offline mode and when it becomes a compliance risk.
PracticeMay 27, 2026