Invoice Total Mismatch: Why ERPs Reject Invoices
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An invoice total mismatch happens when line items, taxes, and totals do not reconcile exactly. Even small rounding differences can cause ERP systems to reject posting, leading to rework and payment delays.
This is a structural consistency issue, not a tax compliance or accounting judgement.
What “total mismatch” means on an invoice
Common causes: rounding, tax lines, and discounts
How ERPs validate totals during invoice posting
How to fix a mismatch before resubmitting
What this validation preview does and does not check
Typical issue: the sum of line items plus tax does not exactly match the declared total —
often due to rounding, currency, or formatting errors.
Common causes of total mismatches
- Rounding differences across line items
- Tax calculated per line vs tax calculated on subtotal
- Manual edits after export from accounting software
- Currency conversion inconsistencies
- Hidden decimals or formatting differences
How to fix it before ERP submission
- Recalculate totals using the same method as the ERP
- Ensure consistent rounding rules
- Verify tax calculation logic
- Check currency precision and conversion rates
Preview structural checks for total mismatches
Total mismatches are often caused by structural issues in the invoice file before accounting rules apply.
Validate an invoice (free preview)
Preview one invoice. PDF only. Structural screening — no tax, legal, or accounting checks.