`BR-DEX-09`

EN 16931 · validation rule

EN 16931Error

XRechnung extension: amount due (BT-115) must equal total with VAT (BT-112) minus paid amount (BT-113) plus rounding (BT-114) plus the sum of third-party payment amounts (BT-DEX-002). The sender must recompute cbc:PayableAmount including the third-party payments.

Field: totals.due (BT-115)
Rule set: EN 16931
Rule-set version: EN 16931 validation artefacts 1.3.17 · in force since 2026-10-13 · Rule-set changelog
Who has to fix it: The sender

This is a property of the file you received, so it cannot be corrected on your side without changing the document — ask the supplier to reissue it.

Check your own invoice

Drop the file that failed. We parse it, run the official rule sets against it and list every finding with a fix — 20 invoices per day, no key, nothing stored.

Open the live demo

Same explanation over the API: GET /v1/rules/BR-DEX-09?lang=en