Calculation Errors |
5% of all invoices contain calculation errors.
PaperOffice AI checks VAT, sums and line items – automatically.
Invoice Validation in Milliseconds
Every invoice is automatically recalculated before payment is released
Invoice received
Invoice arrives via email, scan or upload
Recalculation
Every line item, sum and VAT is verified
Plausibility Check
Prices compared against orders and contracts
Result
Approved for payment or flagged for review
Calculation errors cost money
Wrong Tax Rates
7% instead of 19%, or vice versa – common with mixed goods.
Addition Errors
Line items incorrectly added – especially with long lists.
Quantity Errors
Quantity × price doesn't match the stated line total.
Wrong Deductions
Discounts calculated incorrectly or not applied.
Rounding Errors
Cent amounts add up to significant differences.
Conversion Errors
Wrong exchange rates on foreign currency invoices.
AI-powered invoice verification
Automatic Recalculation
Every line item is recalculated: Quantity × Price, sums, VAT, total.
- Line item calculation
- Sum verification
- VAT validation
Tax Rate Verification
Automatic detection of correct tax rate based on product category.
- 19% / 7% detection
- 0% for exports
- Reverse-charge
Plausibility Check
Prices checked against orders, contracts and market prices.
- Price comparison
- Order matching
- Anomaly detection
Error Escalation
On discrepancies: Automatic notification and review workflow.
- Instant alert
- Review queue
- Supplier notification
Never pay an
incorrect invoice again.
Document AI recalculates every line item, verifies tax rates and validates sums. Errors are detected immediately – before payment goes out.
Eliminate calculation errors?
Every invoice is automatically recalculated – in milliseconds.