# BT-148 Item Gross Price

The item price before subtracting a price-level discount.

## Quick answer

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

- [Validate XML](/en/xrechnung-validator?source=resource&bt=BT-148)
- [Convert invoice](/en/pdf-to-xrechnung?source=resource&bt=BT-148)

## In plain language

The item price before subtracting a price-level discount.

The item price before subtracting a price-level discount.

Describes how the invoice line price is derived, including base quantity and any price-level discount, so automated checks can recalculate line totals.

## What you usually enter here

Decimal amount in invoice currency

Typical valid values include: 110.00

Defined by EN 16931 for line price calculation data; required fields must satisfy the listed BR and Peppol calculation constraints.

## What goes wrong often

Avoid values like: -110.00

Relevant rule codes: BR-28, PEPPOL-EN16931-R046

## Examples in context

Describes how the invoice line price is derived, including base quantity and any price-level discount, so automated checks can recalculate line totals.

Defined by EN 16931 for line price calculation data; required fields must satisfy the listed BR and Peppol calculation constraints.

## Valid Examples

- 110.00

## Invalid Examples

- -110.00

## Related Fields

Describes how the invoice line price is derived, including base quantity and any price-level discount, so automated checks can recalculate line totals.

- [BT-146 Item Net Price](/resources/xrechnung/bt-146-item-net-price)
- [BT-147 Item Price Discount](/resources/xrechnung/bt-147-item-price-discount)

## 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-148

### Data Type:
amount

### Cardinality:
0..1

### Requirement:
Optional

### Since Version:
Optional

## XML Implementation

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

## Validation Rules

### BR-28
BR-28

### PEPPOL-EN16931-R046
PEPPOL-EN16931-R046

## Check whether your XRechnung sets BT-148 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-28, PEPPOL-EN16931-R046. 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
Describes how the invoice line price is derived, including base quantity and any price-level discount, so automated checks can recalculate line totals.

### Legal Requirement
Defined by EN 16931 for line price calculation data; required fields must satisfy the listed BR and Peppol calculation constraints.

## 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)