BR-DEX-02 - Line net amount must equal the sum of its sub-lines
The Invoice line net amount (BT-131) of an INVOICE LINE (BG-25) or of a SUB INVOICE LINE (BG-DEX-01) must equal the sum of the BT-131 of the SUB INVOICE LINE (BG-DEX-01) directly below it.
BR-DEX-02 - Line net amount must equal the sum of its sub-lines
The Invoice line net amount (BT-131) of an INVOICE LINE (BG-25) or of a SUB INVOICE LINE (BG-DEX-01) must equal the sum of the BT-131 of the SUB INVOICE LINE (BG-DEX-01) directly below it. This is an XRechnung rule (German KoSIT CIUS). It applies on top of EN 16931 and Peppol, and is mandatory for B2G invoicing in Germany.
What this rule checks
The Invoice line net amount (BT-131) of an INVOICE LINE (BG-25) or of a SUB INVOICE LINE (BG-DEX-01) must equal the sum of the BT-131 of the SUB INVOICE LINE (BG-DEX-01) directly below it.
How to fix it
Recompute BT-131 as the sum of the net amounts of its direct sub-lines.
Validate against this rule
This rule is part of EN 16931. Check your invoice with the validator that matches your format:
Related rules
Source: KoSIT XRechnung · Last verified: 2026-07-10
All validation rules