ONE COMPANY OR THIRTY

Issue.Book.
Forget.

Biurko is accounting for companies and for the practices that keep their books — invoices, costs and VAT in one account, however many firms you run. KSeF included.

app.biurko.io/dashboard
Dashboard — company overview
Who it is for

From one company to a whole practice — the account stays one.

JDG · sole proprietorship

For freelancers

Your first e-invoice in a few minutes. No Ministry of Finance documentation required.

  • Type the NIP — GUS fills in the rest of the contractor data
  • Product and service catalogue — line items in a single click
  • The invoice goes to KSeF right away, the UPO comes back on its own
  • PDF in 10 templates and 10 languages — foreign clients included
ONE COMPANY · ONE TAX ID · KSeF INCLUDEDJoin the beta
Teams and accounting offices

For teams and offices

Every company — your own and your clients' — under one login. Roles, data isolation, one shared checkout.

  • Any number of companies and NIPs — your own and your clients' — on one account
  • Four system roles plus a builder for roles of your own
  • Client data stays separated — five regression tests keep it that way
  • Switch context in one click; several client companies close in one shared checkout
MANY COMPANIES · ROLES · DATA ISOLATION PER CLIENTJoin the beta

Latest from the Blog

Stay up to date with the latest news, tips and insights.

How to Choose KSeF Software in 2026: 8 Questions Before You Decide

Most KSeF software comparisons stop at the pricing page and a feature list. That is not enough. Below are eight questions that actually separate the tools: FA(3) schema support, authentication method, behaviour during a KSeF outage, purchase invoice retrieval, error readability, team permissions, data export, and what the subscription really covers. Ask them during the demo, not after rollout.

Invoice Status Notifications: Stay Current Without Logging In

Biurko records every event on an invoice (issued, emailed, delivered, opened by the client, marked paid, KSeF response) and pushes it to you through three channels: the in-app bell, browser push notifications, and email. Every event group and every channel toggles independently. What Biurko does not do: it has no bank connection, so "paid" is a status you or your accountant set, not something the system detects.

KSeF Downtime and Profil Zaufany Outages: Where to Check Status

KSeF downtime and a Profil Zaufany outage are two separate events with very different legal consequences. Poland's Ministry of Finance publishes KSeF notices on ksef.podatki.gov.pl and in its Public Information Bulletin (BIP); Profil Zaufany announcements live on gov.pl/web/profilzaufany. Live API availability is on biurko.io/ksef/status. Your deadline to upload a held invoice depends on which mode formally applies: one business day or seven.

FAQ

Frequently Asked Questions

Straight answers: what works today, what is not there yet, and how the invite-only beta works.

KSeF (Krajowy System e-Faktur) is the Polish Ministry of Finance's central system for issuing and receiving invoices in the structured FA(3) format. The mandate is already in force: since 1 February 2026 for the largest VAT payers (over 200 million PLN turnover in 2024), and since 1 April 2026 for everyone else. Penalties under art. 106ni of the VAT Act only start on 1 January 2027 — that is room to get invoicing in order, not an exemption. Biurko covers the obligation end to end: you issue the invoice, and submission to KSeF plus UPO retrieval happen in the background.

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