Invoicing
Write an invoice without looking things up
Pick a customer, enter the lines, issue it. Buchungsfluss fills in what German VAT law requires, so you do not have to check every invoice for a missing mandatory field.

The program fills in the mandatory fields
The fields required by §14 of the German VAT Act appear on every invoice. If you are a small business under §19, Buchungsfluss shows no VAT and adds the prescribed note instead. Reverse charge, intra-community supply and margin scheme are selectable tax types.
Numbering stays gap-free
On locking, Buchungsfluss assigns the final number from the number range. After that the invoice is unalterable. Corrections run through cancellation and reissue, as German bookkeeping rules require, never through deletion.
Quotes, part payments, credit notes
A quote becomes an invoice in one click. Part-payment invoices are offset automatically in the final invoice. Credit notes and cancellations stay traceably attached to the original.
Recurring invoices
Monthly or yearly invoices are created on the chosen cycle, each with the correct performance date. Included in Pro.
What does not happen here
- No automatic postal dispatch. You send by email or download the PDF.
- No bank connection for automatic reconciliation. You tick payments off or import them via CSV.
- No tax advice. For your individual case, talk to your tax advisor.
Which plan
Invoices, quotes and credit notes are included in the free Start plan, limited to five invoices a month. Unlimited, recurring and with dunning from Pro at 9 € a month.
Write your first invoice.
The Start plan is free with no time limit. No bank connection, no installation, no credit card.