Writing an invoice
Enter positions, check the mandatory details, issue: invoices on your own letterhead, with gap-free numbering.
Who this is for:
Owners
1 min readUpdated: 02/09/2026Step by step
- Create a draft under "Write invoice": recipient with address, service period, positions.The draft stays freely editable
- Work through the mandatory-details check, it follows § 14 (4) UStG and blocks issuing until nothing is missing.Every open item is named
- Issue the invoice: number, amounts, letterhead and PDF are frozen.The number comes from a gap-free sequence
- If needed: cancel instead of delete. The cancellation keeps number and PDF, the history stays complete.Issued invoices are immutable
The result: An issued invoice as a PDF on your letterhead, immutable, numbered, and visible as income in the property's tax area.
Important: Issuing is final. Afterwards only a cancellation is possible, documented as its own transaction.
Open in the product
What if it does not work?
- Issuing is blocked.
- The checklist names the missing mandatory detail, often a missing or not yet confirmed letterhead, or the service date.