# BR-DEC-10

> The allowed maximum number of decimals for the Sum of allowanced on document level (BT-107) is 2.

Checked against Peppol BIS Billing 3.0 2026.5

Canonical: https://einvoicecheck.eu/rules/br-dec-10

## Official rule text

The allowed maximum number of decimals for the Sum of allowanced on document level (BT-107) is 2.

## Why did my invoice fail BR-DEC-10?

The Sum of allowances on document level (BT-107), the total of all document-level allowances, is limited to two decimals. Keeping it at 2 decimals ensures it subtracts cleanly from the line-net sum when deriving the tax-exclusive total.

## Common causes

- Summing individual allowances that carried extra precision
- Unrounded aggregation of percentage-derived discounts
- Floating-point accumulation leaving trailing decimals

## How do I fix it?

```
Round the total: <cbc:AllowanceTotalAmount currencyID="EUR">50.00</cbc:AllowanceTotalAmount> in cac:LegalMonetaryTotal.
```