# BT-108 Sum of charges on document level

Total of all document-level charges applied to the invoice.

## Quick answer

> **Taxes and totals**: VAT treatment, tax breakdowns, and document totals that validators check closely.

- [Validate XML](/en/xrechnung-validator?source=resource&bt=BT-108)
- [Convert invoice](/en/pdf-to-xrechnung?source=resource&bt=BT-108)

## In plain language

This field summarizes freight, administration, or other document-level surcharges in one total.

## What you usually enter here

Decimal amount with max 2 fraction digits

Typical valid values include: 5.00

Optional according to EN 16931-1, but BR-CO-12 requires it to equal the sum of BT-99 amounts when present.

## Where the field sits

BT-108 belongs to the Totals and tax part of the invoice. UBL 2.1 Syntax: Invoice › cac:LegalMonetaryTotal › cbc:ChargeTotalAmount. CII (UN/CEFACT) Syntax: rsm:CrossIndustryInvoice › rsm:SupplyChainTradeTransaction › ram:ApplicableHeaderTradeSettlement › ram:SpecifiedTradeSettlementHeaderMonetarySummation › ram:ChargeTotalAmount.

## What goes wrong often

Avoid values like: 5,00

Relevant rule codes: BR-CO-12

## Valid Examples

- 5.00

## Invalid Examples

- 5,00

## Related Fields

- [BT-99 Document level charge amount](/resources/xrechnung/bt-99-document-level-charge-amount)
- [BT-109 Invoice Total Amount Without VAT](/resources/xrechnung/bt-109-invoice-total-amount-without-vat)

## XML mapping and field facts

Open the technical reference if you need XML paths, validator rule codes, legal wording, or schema-specific mapping details.

### Field ID:
BT-108

### Data Type:
amount

### Cardinality:
0..1

### Requirement:
Optional

## XML Implementation

### UBL 2.1 Syntax
```
/Invoice/cac:LegalMonetaryTotal/cbc:ChargeTotalAmount
```

### CII (UN/CEFACT) Syntax
```
/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement/ram:SpecifiedTradeSettlementHeaderMonetarySummation/ram:ChargeTotalAmount
```

## Validation Rules

### BR-CO-12
BR-CO-12

## Check whether your XRechnung sets BT-108 correctly

Upload the XML file to the free validator. It applies the KoSIT rules for XRechnung 3.0 and names each finding with its rule ID, for this field for example BR-CO-12. Creating a new invoice instead? The converter checks the invoice against the same rules and shows the findings before download.

- [Validate XML](/en/xrechnung-validator)
- [Convert invoice](/en/pdf-to-xrechnung)

Free, no account needed. XML file up to 2 MB.

## Official sources and tools

- [KoSIT Validator](https://erechnungsvalidator.service-bw.de/)
- [XRechnung Standard](https://xeinkauf.de/xrechnung/)
- [Test Suite](https://github.com/itplr-kosit/xrechnung-testsuite)