0079·A reduced rate is not allowed above the value threshold
Tax calculationOccasional
What this means
Some reduced rates exist only for lower-value supplies. Once the value per unit crosses the threshold, the rate is no longer permitted and the standard rate applies instead.
Why it happens
- The reduced rate was applied uniformly without checking the per-unit value.
- The threshold was evaluated against the invoice total rather than per unit.
- A price rise pushed existing lines over the threshold without anyone re-checking.
How to fix it
- 1Evaluate the threshold per unit, not per invoice.
- 2Make rate selection value-dependent where a threshold applies, rather than fixing it on the item.
How Ordyoo handles this
Where a rate carries a value condition, the permitted rate is resolved at pricing time rather than fixed on the catalogue item.
Scenarios where this appears
Sandbox scenarios that commonly produce 0079.
Related errors
Stop debugging FBR payloads by hand
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