Error: HMRC Filing Rejections Related to Marginal Relief Calculations
Scenario
You may get the following error message when you submit to HMRC, indicating a mismatch in marginal relief figures.
Error message
The submission of this document has failed due to departmental specific business logic in the Body tag. Entry must agree with the result of the computation of marginal relief (please contact your software supplier)
Causes
A discrepancy between marginal relief computed by our software and HMRC’s calculation.
Affected periods:
Accounting periods that include a leap year or begin on 01/03/2024 and end on 28/02/2025.Impact:
Not all clients are affected. Submissions with correct marginal relief proceed as normal; those with discrepancies are blocked by HMRC.Solution
Our development team is actively investigating and working on a fix.
- Calculate marginal relief using HMRC's official tool: Calculate Marginal Relief for Corporation Tax - Calculate Marginal Relief for Corporation Tax - GOV.UK.
- In yourCorporation Tax:
- Open theCorporation Tax Chargeableschedule.
- If the figure differs from our software's calculation, replace it with HMRC's calculated marginal relief amount.
- Submit your return.
note
If issues persist after following the preceding steps, contact our support team.