Mandatory Information on Invoices: The Complete Checklist

A proper invoice is not just a formality - it's legally required and has direct effects on your customer's input tax deduction.

Why Is Mandatory Information Important?

If even one mandatory piece of information is missing, the tax office can reject the invoice. With this checklist, you ensure that your invoices meet all requirements according to §14 UStG.

Tip: With our VAT calculator you calculate net and gross amounts correctly.

The Complete List of Mandatory Information

1. Name and Address of Invoice Issuer

Your information must be complete and correct. For sole proprietorships, your first and last name; for companies, the complete company name with legal form.

2. Name and Address of Invoice Recipient

The customer information must also be complete - for companies, the company name and address.

3. Tax Number or VAT ID

You must provide either your tax number or your VAT ID. For EU transactions, the VAT ID is mandatory.

4. Invoice Date and Consecutive Number

The invoice number must be unique and consecutive.

5. Service Description and Period

Describe clearly what service or product you billed. For services, also specify the period.

6. Net Amount, Tax Rate, and Gross Amount

The tax amount must be shown separately. Small business owners don't show VAT and add a corresponding note.

7. Payment Information

Bank details and payment terms should be clearly visible. Find tips in our article 5 Tips for Faster Payment.

Special Features for E-Invoices

From 2025, additional requirements apply for e-invoices. For invoices to public clients, the Leitweg-ID is mandatory.

Conclusion

With Clever Invoice, all mandatory information is automatically added. You only enter your company data once - the software handles the rest.

Start for free: Create your first invoice now with all mandatory information.