Your bookkeeping, done the same day.
Write the invoice, capture the receipt, tick off the payment. E-invoicing, profit calculation and the export your tax advisor asks for are built in, inventory when you need it.
Standards & integrations
From draft to sent invoice
You pick the customer, add the line items and issue the invoice. Buchungsfluss fills in the §14 and §19 details, as a PDF or an e-invoice.
Invoice
INV-2026-0042
Bill to
Helvetia Ventures AG
Due in 14 days
Nine functions, one program
Bookkeeping, receipts and inventory share one database. Add a customer once and you find them again in the invoice, the delivery note and the report.
All in one database.
Bookkeeping, receipts and inventory share the same customers and items.
9 modules · 1 appInvoices
Write invoices and quotes with customers and items already on file.
E-invoicing
Send e-invoices to the current standard.
Receipts
Photograph receipts, data captured automatically.
Inventory
Book goods in and out without keeping stock levels by hand.
Dunning
Keep open items in view and send reminders automatically.
Reports & export
Export for tax advisor and tax office in one click.
How Buchungsfluss works
Click through four areas.
Create invoices
Start an invoice, pick the customer, output a PDF or an e-invoice.
- Select customers
- Output PDF or e-invoice
- §14/§19 details automatic
From capture to export
Capture
Write an invoice, capture a receipt or document a stock movement.
Process
Generate e-invoices, update stock and manage open items.
Export
Provide data for tax advisor, tax office or internal reports.
Compared with Excel and cloud tools
Invoices in one program, receipts in the next, stock in a spreadsheet. Buchungsfluss puts invoices, receipts, inventory and reports in the same database.
Hosted in Frankfurt
Your business data lives in the cloud, hosted in the EU. Start on your phone, carry on at your laptop, you see the same state. Transfers are encrypted, backups run on their own, and you run no server yourself.
- Hosted in the EU (Frankfurt)
- In sync across all devices
- Backed up automatically, works offline too
Three plans, cancel monthly
You pay by the month, not by the invoice.
Write invoices at no cost and with no time limit.
Start for free- 5 invoices per month
- Invoices, quotes & credit notes
- Partial invoices with deduction
- Customer management
- Item management
- E-invoicing (ZUGFeRD & XRechnung)
- EÜR export
- CSV export
- Cloud sync
In addition to Start:
Try 14 days- Unlimited invoices
- Recurring invoices
- Dunning
- Receipts with text recognition (OCR) & cash book (GoBD)
- Planner with calendar feed
- Time tracking
- Delivery notes & shipping
- DATEV export
In addition to Pro:
Try 14 days- Inventory & labels
- Sales & rental
- Team roles & permissions
- Multiple entities & brands
- Priority support
Try Buchungsfluss
You start the demo on the sign-in page with one click, without an account and without installing anything.
One click on the sign-in page, no account
Common questions
Buchungsfluss is accounting and invoicing software for small businesses, freelancers and sole traders. You write invoices and e-invoices, capture receipts, manage inventory and export your data for your tax advisor.
The Start plan is free forever and includes five invoices per month, e-invoicing included. Pro is 9 euro and Business 19 euro per month, both free to try for 14 days. All prices are final, cancellable monthly.
For freelancers, self-employed people, retailers and small businesses.
Yes. Buchungsfluss produces ZUGFeRD and XRechnung.
Buchungsfluss supports a GoBD-compliant way of working with write-protection and traceable documentation.
Your data is stored encrypted in the cloud, hosted in the EU (Frankfurt), and stays in sync across all your devices. A local cache keeps the app usable offline too.
No. You work in the browser.
Yes. You cancel yourself online, in the billing area of your account.
Yes, by email to support@buchungsfluss.de. Business customers get answered first.
Get started with your first invoice.
You work in the browser, nothing to install. The Start plan costs nothing, and you move to Pro or Business when you need more.