# BT-136 Invoice line net price

The price of one item in the invoice line, excluding VAT but including all allowances and charges at line level.

## Quick answer

The price of one item in the invoice line, excluding VAT but including all allowances and charges at line level.

> **Line items**: The goods or services on each invoice line, including quantities, prices, and VAT.

## In plain language

The price of one item in the invoice line, excluding VAT but including all allowances and charges at line level.

The price of one item in the invoice line, excluding VAT but including all allowances and charges at line level.

Used to verify line calculations: BT-131 = BT-129 × BT-136 (after allowances/charges).

## What you usually enter here

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

Typical valid values include: 100.00, 25.50, 0.00

Optional but recommended for price transparency according to EN 16931-1.

## What goes wrong often

Avoid values like: -100.00, 100,50, 1.000.00

Relevant rule codes: BR-2, BR-DEC-08

## Examples in context

Used to verify line calculations: BT-131 = BT-129 × BT-136 (after allowances/charges).

Optional but recommended for price transparency according to EN 16931-1.

## Valid Examples

- 100.00
- 25.50
- 0.00

## Invalid Examples

- -100.00
- 100,50
- 1.000.00

## Related Fields

Used to verify line calculations: BT-131 = BT-129 × BT-136 (after allowances/charges).

- [BT-129 Invoice line quantity](/resources/xrechnung/bt-129-invoice-line-quantity)
- [BT-131 Invoice line net amount](/resources/xrechnung/bt-131-invoice-line-net-amount)
- [BT-146 Invoice line allowance charge indicator](/resources/xrechnung/bt-146-invoice-line-allowance-charge-indicator)
- [BT-147 Invoice line allowance charge percentage](/resources/xrechnung/bt-147-invoice-line-allowance-charge-percentage)
- [BT-148 Invoice line allowance charge base amount](/resources/xrechnung/bt-148-invoice-line-allowance-charge-base-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-136

### Data Type:
amount

### Cardinality:
0..1

### Requirement:
Optional

### Since Version:
Optional

## XML Implementation

### UBL 2.1 Syntax
```
/Invoice/cac:InvoiceLine/cac:Price/cbc:PriceAmount
```

### CII (UN/CEFACT) Syntax
```
/CrossIndustryInvoice/SupplyChainTradeTransaction/ApplicableHeaderTradeSettlement/ram:SpecifiedTradeSettlementLineMonetarySummation/ram:NetPriceProductTradePrice/ram:ChargeAmount
```

## Validation Rules

### BR-2
BR-2

### BR-DEC-08
BR-DEC-08

## Why the standard cares about this field

### Business Context
Used to verify line calculations: BT-131 = BT-129 × BT-136 (after allowances/charges).

### Legal Requirement
Optional but recommended for price transparency according to EN 16931-1.

## Official sources and tools

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