FACE-005:IVA calculation mismatch
Tax calculation must be correct: base imponible × tipo = cuota. Spanish IVA rates are 21% (general), 10% (reduced), 4% (super-reduced), 0% (exempt).
Engine Classification
Financial or legal field · Modification blocked by policy
Reason: Tax calculation error: base imponible × tipo ≠ cuota. Spanish VAT (IVA) calculations must be exact. Review and correct the tax amounts in your source system. Common rates: 21% (general), 10% (reduced), 4% (super-reduced).
What is FACE-005?
FACE-005 is a fatal validation rule defined in the Facturae specification (ESP national rules). It checks whether iva calculation mismatch.
When this rule fires, the invoice is non-compliant and will be rejected by Peppol access points and national validation services. The sending system receives a rejection response and the invoice does not reach the buyer.
Why This Error Matters
FACE-005 is a hard failure. Invoices that trigger this rule are rejected at the access point and never reach the recipient. In Peppol networks, this means your sending system receives an MLR (Message Level Response) with a rejection status. The invoice must be corrected and re-sent, adding delay to your payment cycle.
Validator Behavior
- ·Causes invoice rejection
- ·Error returned: FACE-005
- ·Specification: Facturae
How to Fix It
Technical Reference
Code Example
<TaxAmount><TaxableBase>100.00</TaxableBase><TaxRate>21.00</TaxRate><TaxAmount>21.00</TaxAmount></TaxAmount>Common Causes
- ·Rounding error
- ·Wrong rate applied
- ·Calculation precision issue
Seeing this in production? The API handles FACE-005 automatically. See the fix response →
Frequently Asked Questions
Tax calculation must be correct: base imponible × tipo = cuota. Spanish IVA rates are 21% (general), 10% (reduced), 4% (super-reduced), 0% (exempt).
Verify the IVA calculation for each line item. This error involves a protected field — Invoice Navigator flags it in your pipeline so your team can correct it at the source.
Yes, FACE-005 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted by the recipient's system.
FACE-005 involves a financial or legal field that cannot be auto-modified by policy. Invoice Navigator detects and flags this error immediately, but the correction must be made manually in your ERP or invoicing software.
Related Content
Last updated: 3 March 2026
Detect FACE-005 Before Submission
This error involves a financial or legal field that cannot be auto-modified. The compliance engine flags it immediately with a clear diagnosis so your team can fix it at the source.