Reference
Markdown exportBT-109 Invoice Total Amount Without VAT
The total amount of the Invoice without VAT. This is the sum of BT-106 (Sum of Invoice line net amount) minus BT-107 (Sum of allowances on document level) plus BT-108 (Sum of charges on document level).
BT-109 (Invoice total amount without VAT) is the net document total: BT-106 (sum of line net amounts) minus BT-107 (document-level allowances) plus BT-108 (document-level charges). Mandatory under EN 16931. Must reconcile arithmetically (BR-CO-13). Example: 1000.00.
BT-109 · EN 16931 / XRechnung 3.x
BT Reference Card
Key EN 16931 and XRechnung facts for this business term.
- BT code
BT-109- Name
- Invoice Total Amount Without VAT
- Cardinality
- Mandatory (M)
- Business group
- BG-22 DOCUMENT TOTALS
- Data type
- Amount
- Example value
1000.00- Common error
- BR-CO-13: Invoice total without VAT (BT-109) must equal BT-106 minus BT-107 plus BT-108. Validators reject invoices where the math is off by even one cent.
Quick answer
The total amount of the Invoice without VAT. This is the sum of BT-106 (Sum of Invoice line net amount) minus BT-107 (Sum of allowances on document level) plus BT-108 (Sum of charges on document level).
Taxes and totals
VAT treatment, tax breakdowns, and document totals that validators check closely.
Quick actions
In plain language
The total amount of the Invoice without VAT. This is the sum of BT-106 (Sum of Invoice line net amount) minus BT-107 (Sum of allowances on document level) plus BT-108 (Sum of charges on document level).
The total amount of the Invoice without VAT. This is the sum of BT-106 (Sum of Invoice line net amount) minus BT-107 (Sum of allowances on document level) plus BT-108 (Sum of charges on document level).
This amount represents the taxable base for VAT calculation and is essential for financial reporting. It must equal the calculated sum of line amounts plus charges minus allowances.
What you usually enter here
Decimal number with up to 2 decimal places, non-negative
Typical valid values include: 1000.00, 2500.50, 0.00, 999999.99
Mandatory according to EN 16931-1. Must be mathematically correct based on line items and document-level adjustments.
What goes wrong often
Avoid values like: -100.00, 1000,50, 1.000.00, abc
Relevant rule codes: BR-13, BR-CO-13, BR-DEC-12
Examples in context
This amount represents the taxable base for VAT calculation and is essential for financial reporting. It must equal the calculated sum of line amounts plus charges minus allowances.
Mandatory according to EN 16931-1. Must be mathematically correct based on line items and document-level adjustments.
Valid Examples
- 1000.00
- 2500.50
- 0.00
- 999999.99
Invalid Examples
- -100.00
- 1000,50
- 1.000.00
- abc
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-109
Data Type:
amount
Cardinality:
1..1
Requirement:
Mandatory
Since Version:
XRechnung 1.0+
XML Implementation
/Invoice/cac:LegalMonetaryTotal/cbc:TaxExclusiveAmount/CrossIndustryInvoice/SupplyChainTradeTransaction/ApplicableHeaderTradeSettlement/ram:SpecifiedTradeSettlementHeaderMonetarySummation/ram:TaxBasisTotalAmountValidation Rules
BR-13
BR-13
BR-CO-13
BR-CO-13
BR-DEC-12
BR-DEC-12
Next step
Check whether your XRechnung sets BT-109 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-13, BR-CO-13. Creating a new invoice instead? The converter checks the invoice against the same rules and shows the findings before download.
Free, no account needed. XML file up to 2 MB.
Why the standard cares about this field
Business Context
This amount represents the taxable base for VAT calculation and is essential for financial reporting. It must equal the calculated sum of line amounts plus charges minus allowances.
Legal Requirement
Mandatory according to EN 16931-1. Must be mathematically correct based on line items and document-level adjustments.
FAQ
How is BT-109 calculated?
BT-109 = BT-106 (Sum of line net amounts) - BT-107 (Document level allowances) + BT-108 (Document level charges)
Can BT-109 be negative?
No, BT-109 cannot be negative. For credit notes or refunds, use invoice type code 381 with positive amounts.