This page no longer pretends to be a community checklist. It is now a direct note on what evidence to keep when deductions are claimed or modelled.
TD59 Support Checklist: Housing, Children and Green Deductions
A documentation guide for the deductions most likely to be discussed under the 2026 reform support material and payroll modelling.
Back to Briefing HubWhy the support file matters
Documentation summary
The reform package and Tax For All support materials make deductions easier to model, but that does not make them automatic. Housing, child-related and green deductions still need a clean evidence file if they are going to be used in payroll, tax returns or planning.
The right question is not “can this field be entered?” but “can this figure be proved later?”
- Keep the claim document and the supporting payment record together.
- Do not mix one tax year’s support with another year’s file.
- Record who reviewed the deduction if payroll uses it.
What to keep for common claims
Practical checklist
Child-related deductions should be backed by the underlying family status records and any declarations used in payroll. Housing loan interest claims need the loan evidence and the interest detail, not just the total paid amount. Rent claims should retain the lease or equivalent support plus payment proof.
For green expenditure, keep purchase documents, payment support and any product details needed to show the item falls within the relevant qualifying category.
- Children: declarations and supporting status records.
- Housing: loan and interest support, not only the annual total.
- Rent and green spending: contract or invoice plus payment proof.
How payroll and personal filing should align
Control note
If a deduction is modelled in payroll, the employee should still be able to support the same figure at annual filing stage. The easiest way to avoid mismatches is to keep one dated support file that both payroll and the employee can reference.
Use this page as a file-building guide rather than proof that a claim is automatically allowed.
Estimate the impact first, then build the deduction file before treating any claim as settled.
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