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When is the E-Invoice Mandatory in Germany?

Short answer

As of January 1, 2025, every domestic company must be able to receive e-invoices – this applies without a transition period. For sending, transition rules apply: from January 1, 2027, for companies with more than 800,000 euros in revenue from the previous year, and from January 1, 2028, for all domestic B2B sales.

The Timeline

Since January 1, 2025 – Receipt

Every domestic company must be able to receive e-invoices. Technically, an email inbox is sufficient, but practically, software that can read the format is needed. There is no transition period for this.

2025 and 2026 – Transition for Sending

Paper invoices remain permissible. Other electronic formats such as PDF are still possible but require the recipient's consent.

From January 1, 2027

Companies with more than 800,000 euros in revenue in the previous year (2026) must issue e-invoices.

From January 1, 2028

The obligation to issue applies to all domestic B2B sales.

Exemptions

  • Invoices to private individuals (B2C)
  • Small invoices and tickets
  • Small businesses according to § 19 UStG are permanently exempt from the obligation to issue – however, they must still be able to receive e-invoices.

What to Do Now

Receiving is already mandatory. Those who have not yet taken action should first clarify whether incoming e-invoices can be processed at all and how they will be stored in a revision-proof manner. Issuing can then be planned – but the transition during ongoing operations usually takes longer than expected.

The regulations are based on the Growth Opportunities Act (March 2024) and are stated in § 14 UStG.

Key facts

Receipt Obligation
since January 1, 2025, without a transition period
Issuing Obligation from 800,000 € Previous Year Revenue
January 1, 2027
Issuing Obligation for All
January 1, 2028
Legal Basis
§ 14 UStG, Growth Opportunities Act
Permanently Exempt from Issuing
Small businesses according to § 19 UStG

Sources

All external claims are backed by traceable sources.
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