What causes the BR-45 error?

Service lines should specify the billing period.

Add the required `cac:TaxSubtotal` element to your Invoice. Ensure it contains a valid value per EN 16931. This error involves a protected field — Invoice Navigator flags it in your pipeline so your team can correct it at the source.

Is BR-45 a critical error?

BR-45 is a warning that may not always cause rejection, but it indicates a potential compliance issue that should be addressed to ensure full compatibility.

Can BR-45 be automatically fixed?

BR-45 involves a financial or legal field that cannot be auto-modified by policy. Invoice Navigator detects and flags this error immediately, but the correction must be made manually in your ERP or invoicing software.

Which accounting software causes BR-45?

BR-45 is commonly seen in exports from All invoicing software. These software packages sometimes generate invoices that need adjustment to meet full compliance standards.

Error codes · EN 16931

BR-45Partly

Each VAT breakdown (BG-23) shall have a VAT category taxable amount (BT-116).

This is the rejection, word for word: „[BR-45] Each VAT breakdown (BG-23) shall have a VAT category taxable amount (BT-116).. Check the `cac:TaxSubtotal` element in your invoice XML.“

What to have readyThe correct figures from your bookkeeping; we show you which field is affected.

What we doAdd the required `cac:TaxSubtotal` element to your Invoice. Ensure it contains a valid value per EN 16931.

Choose the rejected invoiceor drop it here

XRechnung XML or ZUGFeRD PDF. Checking is free · corrected file €1.90 · the first every 30 days is free · no sign-up.

If you enter it yourself in your invoicing software

Before

<cac:TaxTotal>
  <!-- cac:TaxSubtotal is missing -->
</cac:TaxTotal>

After

<cac:TaxTotal>
  <cac:TaxSubtotal>valid-value</cac:TaxSubtotal>
</cac:TaxTotal>

What the finding looks likeExample

FindingNeeds your check · BR-45

Location/Invoice/cac:InvoiceLine/cac:InvoicePeriod

From youThe correct figures

ThenChecked again

ProofSHA-256 and /verify link after the check

Often appears together with

BR-03Invoice must have an issue date BR-14Invoice total amount with VAT required