# BR-36

> Each Document level charge (BG-21) shall have a Document level charge amount (BT-99).

Checked against Peppol BIS Billing 3.0 2026.5

Canonical: https://einvoicecheck.eu/rules/br-36

## Official rule text

Each Document level charge (BG-21) shall have a Document level charge amount (BT-99).

## Why did my invoice fail BR-36?

Every Document level charge (BG-21) must carry a Document level charge amount (BT-99), the monetary value of the surcharge before VAT. Without it the charge cannot be summed into the document charge total or the VAT breakdown.

## Common causes

- Charge group added with only a reason or percentage, missing cbc:Amount
- Amount populated on cbc:BaseAmount instead of cbc:Amount
- Charge emitted with an empty amount value

## How do I fix it?

```
Add the charge amount to the document-level AllowanceCharge (ChargeIndicator=true): <cac:AllowanceCharge><cbc:ChargeIndicator>true</cbc:ChargeIndicator><cbc:Amount currencyID="EUR">15.00</cbc:Amount>...</cac:AllowanceCharge>
```