BR-CO-15

Official rule text

Invoice total amount with VAT (BT-112) = Invoice total amount without VAT (BT-109) + Invoice total VAT amount (BT-110).

What this error means

The invoice total with VAT (BT-112) must equal the total without VAT (BT-109) plus the total VAT amount (BT-110). This is the single most-hit calculation rule - almost always a 1-cent rounding drift between the VAT breakdown and the declared totals.

How to fix it

1. Recompute BT-112 = BT-109 + BT-110 after both sides are rounded to 2 decimals.
2. Compute BT-110 as the sum of the per-category VAT amounts (BT-117) - not as rate × grand total, which drifts by a cent on mixed-rate invoices.
3. Use one rounding helper everywhere; mixing round() implementations across languages is a classic cause.

Example

<TaxExclusiveAmount>875.00</>
<TaxAmount>218.75</>
<TaxInclusiveAmount>1093.74</>

<TaxExclusiveAmount>875.00</>
<TaxAmount>218.75</>
<TaxInclusiveAmount>1093.75</>

Related rules

BR-CO-05BR-CO-21BR-CO-06BR-CO-22BR-CO-10BR-CO-11