Fatal — invoice rejected
VAT categories & rates
UAE-specific rule
PINT-AE 2026.5
How to fix aligned-ibrp-s-08 in UAE e-invoicing
What is aligned-ibrp-s-08?
aligned-ibrp-s-08 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 the VAT totals and belongs to the VAT categories & rates rule group. An e-invoice that fails aligned-ibrp-s-08 is rejected by the Accredited Service Provider gateway before it reaches the FTA.
What the official rule says
For each different value of VAT category rate (ibt-119) where the VAT category code (ibt-118) is "Standard rated", the VAT category taxable amount (ibt-116) in a VAT breakdown (ibg-23) MUST equal the sum of Invoice line net amounts (ibt-131) plus the sum of document level charge amounts (ibt-99) minus the sum of document level allowance amounts (ibt-92) where the VAT category code (ibt-151, ibt-102, ibt-95) is "Standard rated" and the VAT rate (ibt-152, ibt-103, ibt-96) equals the VAT category rate (ibt-119).
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 the VAT totals of your UBL 2.1 invoice:
/*/cac:TaxTotal/cac:TaxSubtotal/cac:TaxCategory[normalize-space(cbc:ID) = 'S'][cac:TaxScheme/normalize-space(upper-case(cbc:ID))='VAT']
Business terms referenced
| Term ID | Field | Other rules |
|---|---|---|
| IBT-119 | VAT category rate | view → |
| IBT-118 | VAT category code | view → |
| IBT-116 | VAT category taxable amount | view → |
| IBG-23 | VAT breakdown | view → |
| IBT-131 | Invoice line net amount | view → |
| IBT-99 | Document level charge amounts | view → |
| IBT-92 | Document level allowance amounts | view → |
| IBT-151 | Invoiced item VAT category code | view → |
| IBT-102 | Document level charge VAT category code | view → |
| IBT-95 | Document level allowance VAT category code | view → |
| IBT-152 | Invoiced item VAT rate | view → |
| IBT-103 | Document level charge VAT rate | view → |
| IBT-96 | Document level allowance VAT rate | view → |
Field names are derived automatically from the official rule corpus.
Technical test condition (Schematron)
(cbc:Percent castable as xs:decimal) and (every $rate in xs:decimal(cbc:Percent) satisfies (((exists(//cac:InvoiceLine[cac:Item/cac:ClassifiedTaxCategory/normalize-space(cbc:ID) = 'S'][cac:Item/cac:ClassifiedTaxCategory/xs:decimal(cbc:Percent) =$rate]) or exists(//cac:AllowanceCharge[cac:TaxCategory/normalize-space(cbc:ID)='S'][cac:TaxCategory/xs:decimal(cbc:Percent) = $rate])) and (u:slack(../xs:decimal(cbc:TaxableAmount), sum(../../../cac:InvoiceLine[cac:Item/cac:ClassifiedTaxCategory/normalize-space(cbc:ID)='S'][cac:Item/cac:ClassifiedTaxCategory/xs:decimal(cbc:Percent) =$rate]/xs:decimal(cbc:LineExtensionAmount)) + sum(../../../cac:AllowanceCharge[cbc:ChargeIndicator=true()][cac:TaxCategory/normalize-space(cbc:ID)='S'][cac:TaxCategory/xs:decimal(cbc:Percent) = $rate]/xs:decimal(cbc:Amount)) - sum(../../../cac:AllowanceCharge[cbc:ChargeIndicator=false()][cac:TaxCategory/normalize-space(cbc:ID)='S'][cac:TaxCategory/xs:decimal(cbc:Percent) = $rate]/xs:decimal(cbc:Amount)),0.02))) or ((exists(//cac:CreditNoteLine[cac:Item/cac:ClassifiedTaxCategory/normalize-space(cbc:ID) = 'S'][cac:Item/cac:ClassifiedTaxCategory/xs:decimal(cbc:Percent) =$rate]) or exists(//cac:AllowanceCharge[cac:TaxCategory/normalize-space(cbc:ID)='S'][cac:TaxCategory/xs:decimal(cbc:Percent) = $rate])) and (u:slack(../xs:decimal(cbc:TaxableAmount), sum(../../../cac:CreditNoteLine[cac:Item/cac:ClassifiedTaxCategory/normalize-space(cbc:ID)='S'][cac:Item/cac:ClassifiedTaxCategory/xs:decimal(cbc:Percent) =$rate]/xs:decimal(cbc:LineExtensionAmount)) + sum(../../../cac:AllowanceCharge[cbc:ChargeIndicator=true()][cac:TaxCategory/normalize-space(cbc:ID)='S'][cac:TaxCategory/xs:decimal(cbc:Percent) = $rate]/xs:decimal(cbc:Amount)) - sum(../../../cac:AllowanceCharge[cbc:ChargeIndicator=false()][cac:TaxCategory/normalize-space(cbc:ID)='S'][cac:TaxCategory/xs:decimal(cbc:Percent) = $rate]/xs:decimal(cbc:Amount)),0.02)))))
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Related rules
aligned-ibrp-s-09
The VAT category tax amount (ibt-117) in a VAT breakdown (ibg-23) where VAT category code (ibt-118)
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A VAT breakdown (ibg-23) with VAT Category code (ibt-118) "Standard rate" MUST not have a VAT exempt
aligned-ibrp-045
Each VAT breakdown (ibg-23) MUST have a VAT category taxable amount (ibt-116).
aligned-ibrp-047
Each VAT breakdown (ibg-23) MUST be defined through a VAT category code (ibt-118).
aligned-ibrp-048
Each VAT breakdown (ibg-23) MUST have a VAT category rate (ibt-119), except if the Invoice is not su
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An Invoice that contains an Invoice line (ibg-25), a Document level allowance (ibg-20) or a Document
aligned-ibrp-ae-08-ae
In a VAT Breakdown (IBG-23) where the VAT category code (IBT-118) is 'Reverse Charge', for each diff
aligned-ibrp-ae-09-ae
In a VAT breakdown (IBG-23) where the VAT category code (IBT-118) is 'Reverse charge', VAT category
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.