# BR-DEC-12

> The allowed maximum number of decimals for the Invoice total amount without VAT (BT-109) is 2.

Checked against Peppol BIS Billing 3.0 2026.5

Canonical: https://einvoicecheck.eu/rules/br-dec-12

## Official rule text

The allowed maximum number of decimals for the Invoice total amount without VAT (BT-109) is 2.

## Why did my invoice fail BR-DEC-12?

The Invoice total amount without VAT (BT-109), the tax-exclusive total (line-net sum minus allowances plus charges), is limited to two decimals. This is a core total that must match downstream VAT and grand-total calculations exactly, so precision is capped at currency scale.

## Common causes

- Deriving the total from unrounded intermediate sums
- Floating-point arithmetic leaving a third decimal
- Currency conversion applied to the total without re-rounding

## How do I fix it?

```
Round to 2 decimals: <cbc:TaxExclusiveAmount currencyID="EUR">2475.00</cbc:TaxExclusiveAmount> in cac:LegalMonetaryTotal.
```