BR-31: Each document-level allowance needs an amount (BT-92)

Explained by Matheel from ZATCA's rule text and the condition SDK 3.4.8 executes · Updated October 24, 2026

Error: the invoice is rejectedConditional, see belowFields: BG-20, BT-92

Applies only when the document has a document-level cac:AllowanceCharge with cbc:ChargeIndicator = false (an allowance); each such element must contain cbc:Amount.

How to fix it

Add the allowance amount inside each document-level allowance, e.g. <cbc:Amount currencyID="SAR">10.00</cbc:Amount>.

ZATCA's official text

[BR-31]-Each Document level allowance (BG-20) shall have a Document level allowance amount (BT-92).
Source: ZATCA SDK 3.4.8 · EN 16931 (CEN) rules

Fails when (the condition ZATCA's SDK runs)

not(exists(cbc:Amount))

Related rules

• BR-32 · Each document-level allowance needs a VAT category code (BT-95)
• BR-CO-11 · Allowance total must equal the sum of document-level allowances
• BR-E-01 · Exempt (E) items need an 'E' VAT breakdown
• BR-E-06 · Exempt (E) document allowances must have a VAT rate of 0
• BR-E-08 · Exempt (E) taxable amount must match the exempt lines and adjustments
• BR-KSA-12 · 'Not subject to VAT' (O) allowances must have a VAT rate of 0 if given