# BR-DEC-15

> The allowed maximum number of decimals for the Invoice total VAT amount in accounting currency (BT-111) is 2.

Checked against Peppol BIS Billing 3.0 2026.5

Canonical: https://einvoicecheck.eu/rules/br-dec-15

## Official rule text

The allowed maximum number of decimals for the Invoice total VAT amount in accounting currency (BT-111) is 2.

## Why did my invoice fail BR-DEC-15?

The Invoice total VAT amount in accounting currency (BT-111), the VAT total restated in the seller's tax-accounting currency when it differs from the invoice currency, must have at most two decimals. This mirrors BT-110's precision cap so the converted VAT figure remains a valid monetary amount.

## Common causes

- Emitting the converted VAT amount with the raw exchange-rate result (e.g. 3-4 decimals)
- Multiplying VAT by an FX rate without rounding to 2 decimals
- Copying a high-precision accounting-currency value directly

## How do I fix it?

```
Round after conversion: <cbc:TaxAmount currencyID="SEK">5200.00</cbc:TaxAmount> in the second cac:TaxTotal that carries the accounting-currency VAT.
```