Bookkeeping. Finally easy to understand.
Invoices, expenses, receipts, e-invoices and taxes – in one interface that adapts to your business.
Simple
See only the features you really need.
Multilingual
German bookkeeping in a language you understand.
Made for Germany
EÜR, VAT, e-invoicing and ELSTER in the German context.
Everything for your bookkeeping
Each area has its own page – with the details that matter to you.
Invoices
Write invoices with every mandatory detail and keep track of open amounts.
E-invoicing
Create and receive ZUGFeRD and XRechnung.
Income & expenses
Record expenses with category, tax rate and private share.
Receipts
Upload or snap receipts and archive them securely.
EÜR
The profit statement (Einnahmenüberschussrechnung) from your bookings.
VAT
Advance VAT return, annual VAT return and EC sales list.
ELSTER
Check returns and send them directly to ELSTER.
Kontelio adapts to your business.
At the start, Kontelio asks how you work. After that, the simplified mode shows only what you need – all other features stay one click away.
German bookkeeping. In your language.
Kontelio is available in nine languages. The official German terms stay visible – explained in a language you understand.
- Deutsch
- English
- Português
- Español
- Italiano
- Türkçe
- العربية
- Polski
- Français
Ready for e-invoicing
You have had to receive e-invoices since 2025. With Kontelio you create and receive ZUGFeRD and XRechnung – connected to your bookkeeping.
From booking to ELSTER
EÜR, advance VAT return, annual VAT return, EC sales list and trade tax return: Kontelio prepares them, checks them with the official ELSTER software and files them directly.
Secure, because it is your money
Hosted in Frankfurt
All data stays in the EU, GDPR compliant.
Encrypted
IBANs, tax numbers and tax IDs are additionally encrypted field by field.
Two-factor sign-in
Authenticator app protection for everyone, mandatory for owners and admins.
Archived to German standards
Receipts stored tamper-proof under GoBD for ten years.
Guides for freelancers and the self-employed in Germany
Tax number, invoices, e-invoices, ELSTER, VAT and EÜR – explained briefly, with the official German terms.
New on the blog
Input VAT Deduction: Requirements and Correct Timing 2026
You may reclaim the VAT on an incoming invoice from the Finanzamt if four conditions are met at the same time: you are a VAT-liable business owner, the service was provided for your …
Kleinunternehmer Invoice 2026: Mandatory Details, Note and Template
As a Kleinunternehmer (small business owner), you write invoices without Umsatzsteuer (VAT). Still, it doesn’t work without rules. Since 2025, a separate, shorter list of mandatory details applies to you. One sentence must not be missing from any invoice: the …
Writing an Invoice in English: Terms, Mandatory Details, Template
In business, the English word for an invoice (Rechnung) is almost always invoice. You are more likely to hear “bill” in a restaurant or for your electricity. A “receipt” confirms a payment that has already been made. If you, as a …
Frequently asked questions
Do I need to enter a credit card?
No. You can try Kontelio free for 30 days without entering any payment details.
What happens after 30 days?
Shortly before the trial ends, we send you a payment request for the plan you chose. If you do not want to continue, simply cancel before the trial ends – then nothing is charged.
Can I cancel monthly?
Yes. With monthly billing you can cancel at the end of any month, with yearly billing at the end of the term. You can export your reports at any time.
Does Kontelio file my returns directly with ELSTER?
Yes. On the Business and Pro plans you file the advance VAT return, annual VAT return, EC sales list, Anlage EÜR and trade tax return straight from Kontelio – with your ELSTER certificate and PIN. Before sending, Kontelio checks the data with the official ELSTER software (ERiC), and the transmission log is stored with the return.
Do I still need a tax advisor?
That is up to you. Many freelancers do their EÜR and VAT themselves. If you work with a tax advisor, the Business and Pro plans give them free access to your figures.
Where is my data stored?
In data centres in Frankfurt am Main. Sensitive details such as IBANs or tax IDs are additionally encrypted, and every access is logged.
Ready for simpler bookkeeping?
Try Kontelio free for 30 days – no credit card, no commitment.