Blog
Auto-Filling Counterparty Data from a NIP (GUS) — No More Manual Typing
Auto-fill counterparty data from a NIP via the GUS registry: name, address, REGON and status appear automatically. Fewer typos, correct invoices and JPK.
VAT White List — How to Check a Counterparty, Avoid Sanctions, and Not Lose the Cost
VAT taxpayer white list: how to check a counterparty and their bank account, the PLN 15,000 threshold, sanctions, split payment, virtual accounts, and the 7-day rescue (ZAW-NR).
How AI Helps with Small Business Accounting — 7 Tasks the Assistant Takes On
How an AI assistant lightens a small business owner's load: VAT/PIT/CIT/ZUS questions, KSeF e-invoices, VAT whitelist, NIP lookups, receipt OCR, deadlines.
How to Issue an Invoice in KSeF — Step by Step
How to issue a KSeF invoice step by step: permissions, token/certificate, login, the FA(3) schema, KSeF number, UPO, corrections, and offline/emergency mode.
KSeF and wFirma — How to Send e-Invoices Through the Integration
How to send e-invoices to KSeF via wFirma: token vs certificate, permissions, invoice statuses and KSeF number, receiving cost invoices, and the AI assistant.
KSeF 2026 — When Does It Become Mandatory, Who Must Issue e-Invoices, and How to Prepare
When is KSeF mandatory? The 2026–2027 timeline, who must issue e-invoices, offline mode, permissions, penalties, and practical steps to roll it out smoothly.
Receipt OCR in Telegram — Log an Expense from a Photo in Seconds
Photograph a receipt in Telegram and the AI assistant reads the seller, NIP, date, amounts, and VAT, then creates the expense in wFirma. A step-by-step guide.
Ryczałt or General Rules — How to Choose Your Tax Form in 2026
Skala podatkowa, podatek liniowy, or ryczałt in 2026? Compare rates, the health insurance contribution impact, who benefits, and how to change your tax form.
ZUS Contributions 2026 for Entrepreneurs — Amounts, Reliefs, and Payment Deadlines
How much ZUS contributions cost in 2026: duży ZUS, mały ZUS, Mały ZUS Plus, start-up relief, health contribution. Current amounts, examples, deadlines.
Split Payment — When Is the Split Payment Mechanism (MPP) Mandatory
Split payment (MPP): mandatory when an invoice exceeds PLN 15,000 and includes Annex 15 goods — invoice wording, VAT account, 30% penalties, and benefits.
VAT and JPK_V7 Deadlines in 2026 — Payment Calendar
VAT and JPK_V7 deadlines in 2026: payment and JPK_V7M/K filing dates, quarterly settlement, VAT-EU, and holiday shifts. A ready-made calendar.
PIT Advance Payments in a Sole Proprietorship (JDG) — Deadlines and Calculation
PIT advances for sole proprietors in 2026: deadlines (by the 20th), monthly vs. quarterly, calculating each method, a worked example, and the annual return.