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Fatal — invoice rejected Amounts & totals UAE-specific rule PINT-AE 2026.5

How to fix ibr-131-ae in UAE e-invoicing

What is ibr-131-ae?

ibr-131-ae is a fatal validation rule in the UAE's Peppol PINT-AE e-invoicing specification — one of the UAE-specific rules. It is checked against allowances and charges and belongs to the Amounts & totals rule group. An e-invoice that fails ibr-131-ae is rejected by the Accredited Service Provider gateway before it reaches the FTA.

What the official rule says

Allowance amount (IBT-092, IBT-136) must equal base amount (IBT-093, IBT-137) * percentage (IBT-094, IBT-138) /100 if base amount and percentage exists
UAE impact: this is a fatal rule specific to the UAE PINT-AE profile — an invoice failing it is rejected at the Accredited Service Provider gateway before it ever reaches the FTA. A rejected invoice means resubmission delays, and late transmission risks the AED 100-per-invoice penalty under Cabinet Decision No. 106 of 2025.

Where it applies

This rule is checked against allowances and charges of your UBL 2.1 invoice: 

cac:AllowanceCharge[cbc:ChargeIndicator = false()][not(ancestor::cac:Price)]

Business terms referenced

Term ID Field Other rules
IBT-092 MUST have an allowance amount view →
IBT-136 MUST have an Invoice line allowance amount view →
IBT-093 both or neither Allowance base amount view →
IBT-137 — view →
IBT-094 — view →
IBT-138 — view →

Field names are derived automatically from the official rule corpus.

Technical test condition (Schematron) 
not(exists(cbc:BaseAmount) and exists(cbc:MultiplierFactorNumeric)) or number(cbc:Amount) = (number(cbc:BaseAmount) * number(cbc:MultiplierFactorNumeric) div 100) or number(cbc:Amount) = round((number(cbc:BaseAmount) * number(cbc:MultiplierFactorNumeric) div 100) * 100) div 100

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Related rules

aligned-ibrp-032 Each Document level allowance (ibg-20) MUST have a Document level allowance VAT category code (ibt-0 aligned-ibrp-057 Either both or neither Allowance base amount (ibt-093) and percentage (ibt-094) MUST be provided. ibr-115-ae Document level allowance tax category code (IBT-095) cannot be 'Standard rate additional VAT'. ibr-168-ae Document level allowances (IBG-20) with Document level allowance VAT category code (IBT-095) as 'Exe ibr-031 Allowance (ibg-20) MUST have an allowance amount (ibt-092). ibr-041 Each Invoice line allowance (ibg-27) MUST have an Invoice line allowance amount (ibt-136). ibr-147-ae Invoice line net amount (IBT-131) MUST equal (Invoiced quantity (IBT-129) * (Item net price (IBT-146 ibr-co-11 Sum of allowances on document level (ibt-107) = Σ Document level allowance amount (ibt-092).

Rule text sourced from the official OpenPeppol PINT-AE validation artifacts (version 2026.5), refreshed weekly. Explanations are qmetrics' own guidance, not official FTA/MoF text.