# BT-115 Amount Due for Payment

The outstanding amount that is requested to be paid. This is BT-112 (Invoice total amount with VAT) minus BT-113 (Paid amount) plus BT-114 (Rounding amount).

> BT-115 (Amount due for payment) is the final outstanding sum the buyer must remit. Mandatory under EN 16931 and XRechnung. It equals BT-112 minus prepaid amounts (BT-113) plus rounding (BT-114). Must be present even on fully paid (zero-due) invoices. Example: 1190.00.
>
> BT-115 · EN 16931 / XRechnung 3.x

## BT Reference Card

Key EN 16931 and XRechnung facts for this business term.

- **BT code**: BT-115
- **Name**: Amount Due for Payment
- **Cardinality**: Mandatory (M) — XRechnung; Mandatory (M) — EN 16931
- **Business group**: BG-22 DOCUMENT TOTALS
- **Data type**: Amount
- **Example value**: 1190.00
- **Common error**: BR-CO-16: Amount due for payment (BT-115) shall equal BT-112 (total with VAT) minus BT-113 (paid amount) plus BT-114 (rounding amount). Required to be present even when zero.

## Quick answer

The outstanding amount that is requested to be paid. This is BT-112 (Invoice total amount with VAT) minus BT-113 (Paid amount) plus BT-114 (Rounding amount).

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

- [Validate XML](/en/xrechnung-validator?source=resource&bt=BT-115)
- [Convert invoice](/en/pdf-to-xrechnung?source=resource&bt=BT-115)

## In plain language

The outstanding amount that is requested to be paid. This is BT-112 (Invoice total amount with VAT) minus BT-113 (Paid amount) plus BT-114 (Rounding amount).

The outstanding amount that is requested to be paid. This is BT-112 (Invoice total amount with VAT) minus BT-113 (Paid amount) plus BT-114 (Rounding amount).

This is the actual amount the customer needs to pay, considering any prepayments or deposits already made. For new invoices without prepayments, this equals BT-112.

## What you usually enter here

Decimal number with up to 2 decimal places, non-negative

Typical valid values include: 1190.00, 595.00, 0.00, 1199999.99

Mandatory according to EN 16931-1. Must be mathematically correct and represents the legally enforceable payment amount.

## What goes wrong often

Avoid values like: -119.00, 1190,00, 1.190.00, amount

Relevant rule codes: BR-15, BR-CO-16, BR-CO-25, BR-DEC-18

## Examples in context

This is the actual amount the customer needs to pay, considering any prepayments or deposits already made. For new invoices without prepayments, this equals BT-112.

Mandatory according to EN 16931-1. Must be mathematically correct and represents the legally enforceable payment amount.

## Valid Examples

- 1190.00
- 595.00
- 0.00
- 1199999.99

## Invalid Examples

- -119.00
- 1190,00
- 1.190.00
- amount

## Related Fields

This is the actual amount the customer needs to pay, considering any prepayments or deposits already made. For new invoices without prepayments, this equals BT-112.

- [BT-112 Invoice Total Amount With VAT](/resources/xrechnung/bt-112-invoice-total-amount-with-vat)
- [BT-113 Paid Amount](/resources/xrechnung/bt-113-paid-amount)
- [BT-114 Rounding Amount](/resources/xrechnung/bt-114-rounding-amount)

## 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-115

### Data Type:
amount

### Cardinality:
1..1

### Requirement:
Mandatory

### Since Version:
XRechnung 1.0+

## XML Implementation

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

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

## Validation Rules

### BR-15
BR-15

### BR-CO-16
BR-CO-16

### BR-CO-25
BR-CO-25

### BR-DEC-18
BR-DEC-18

## Check whether your XRechnung sets BT-115 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-15, BR-CO-16. 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.

## Why the standard cares about this field

### Business Context
This is the actual amount the customer needs to pay, considering any prepayments or deposits already made. For new invoices without prepayments, this equals BT-112.

### Legal Requirement
Mandatory according to EN 16931-1. Must be mathematically correct and represents the legally enforceable payment amount.

## FAQ

### When is BT-115 different from BT-112?
BT-115 differs from BT-112 when prepayments (BT-113) have been made or rounding amounts (BT-114) apply. Formula: BT-115 = BT-112 - BT-113 + BT-114.

### Can the amount due for payment be zero?
Yes, if the total invoice amount has been fully covered by prepayments, BT-115 can be 0.00.

## 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)