Skip to content

BT-131: Invoice Line Net Amount

The total net amount for the invoice line excluding VAT, after discounts.

BT-131•Mandatory (1..1)•EN 16931-1 / XRechnung 3.0 / ZUGFeRD 2.3

Technical Specification

Requirement & Cardinality
1..1(Mandatory)

Mandatory (1..1) per invoice line

Data Type
Amount (Decimal with 2 fractional digits)

Semantic data format according to European Standard EN 16931-1

XML Syntax Mappings
UBL 2.1(XRechnung / Peppol BIS)
Invoice/cac:InvoiceLine/cbc:LineExtensionAmount
UN/CEFACT CII D16B(ZUGFeRD 2.3 / Factur-X)
rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:IncludedSupplyChainTradeLineItem/ram:SpecifiedLineTradeSettlement/ram:SpecifiedTradeSettlementLineMonetarySummation/ram:LineTotalAmount

What does BT-131 mean?

BT-131 states the line net total without VAT. Formed by line calculations minus line discounts. The sum of all BT-131 values must equal BT-106.

XML Syntax & Code Example

OASIS UBL 2.1 (XRechnung)
<cac:InvoiceLine>
  <cbc:LineExtensionAmount currencyID="EUR">1200.00</cbc:LineExtensionAmount>
</cac:InvoiceLine>

Business Rules & Schematron Checks

BR-24

Each Invoice line shall have an Invoice line net amount (BT-131).

Check BT-131 in your invoice

Use the XML paths above to locate BT-131. A snippet illustrates this field; it is not a complete invoice. After correcting a value in the source application, export and check the entire file again.

Find rule violations in the validatorRead invoice values in the viewer

Official specifications and rule sets

Requirements depend on the invoice profile and version. Consult the matching specification for mandatory fields, code lists and rules; Peppol-specific requirements do not automatically apply to every ZUGFeRD invoice.

Related Business Terms (BTs)

BT-106
Sum of Invoice Line Net Amounts
The sum of all invoice line net amounts (BT-131) in the invoice.
BT-126
Invoice Line Identifier
Unique identifier for the individual invoice line.
BT-129
Invoiced Quantity
The quantity of items or services invoiced for this line.
BT-146
Item Net Price
The net price of one unit of the item or service.
BT-151
Item VAT Category Code
The VAT category code applicable to this line item (e.g. S for standard rate).

Create compliant E-Invoices easily

Create XRechnung and ZUGFeRD invoices in Billance and check the exported file locally. Use this guide to understand BT-131 and review your invoice details before sending.

Download Billance FreeView Pricing