Without an account (this tool)
- Calculate, check, or download once
- No saved clients or invoices
- Results are lost when you leave the page
Answer six short questions for orientation — receive from 2025, issue likely from 2027 or 2028. No account required.
Question 1 of 6
Chosen legal form — independent of tax status (e.g. Kleinunternehmer).
General information only — not legal or tax advice. Tax and e-invoice rules can change; the applicable laws control (e.g. § 19 UStG, § 14 UStG). Confirm with a tax advisor or lawyer if unsure.
The tool above is free and does not save data. Effitrio keeps clients, invoices, and receipts in one place.
Move from one-off downloads to ongoing billing: save clients, send invoices, and track finances.
No credit card required. 10 invoices, 10 emails & 50 AI credits/month on the free tier.