What Is an R40 Form —
and Why Do You Need One
After a Car Finance Payout?
HMRC automatically deducts 20% tax from the statutory interest on your car finance compensation. The R40 is the form that gets it back — and we handle it for you.
Check If You Can Claim
What Is the R40 Form — and How Does It Apply to Car Finance?
The R40 is HMRC’s repayment claim form — specifically designed for individuals who have had income tax over-deducted from interest, savings, or similar income sources. In the context of car finance compensation, it is the exact form used to recover the 20% tax automatically withheld by lenders from the statutory interest portion of any payout under the FCA’s motor finance redress scheme.
When a car finance lender pays compensation under the FCA redress scheme, the payout typically has two components: the overpaid interest (returned to you directly) and statutory interest (added to reflect the time-value of money withheld unlawfully). HMRC classes statutory interest as savings income and requires every lender to deduct 20% before it is released to you — regardless of your tax status.
The R40 is not a full tax return. It is simpler, shorter, and targeted at a specific type of income. It does not require a Government Gateway account, does not affect your PAYE position, and does not need to be filed as part of self-assessment. Our HMRC-registered agents prepare and submit your R40 accurately, in the correct tax year, and handle all HMRC correspondence on your behalf.
You must file an R40 for each tax year in which you received a compensation payout. If you received payouts from multiple lenders in the same tax year, they can often be combined on one form. HMRC allows R40 claims for up to four tax years after the end of the relevant tax year — so claims dating back several years are still possible.
Estimate Your Tax Rebate
How Much Could You Be Owed?
Estimate only. Actual figure depends on your specific payout breakdown and tax status.
How to Claim Your R40 Tax Rebate
We handle everything — you don’t need to contact HMRC, your lender, or the FCA at any stage.
Who Needs an R40?
Anyone who has received car finance compensation including statutory interest will have had 20% tax deducted. If you were a basic-rate taxpayer, non-taxpayer, or had unused Personal Savings Allowance in the payout year, the R40 allows you to recover some or all of that deduction.
What Information Is Required?
The R40 requires your National Insurance number, your address, the amount of statutory interest received, and the tax deducted at source. Your settlement letter from the lender will state both figures. You do not need a Government Gateway account.
When Should It Be Filed?
The R40 is filed after the tax year in which you received the payout ends on 5 April. You have up to four years from the end of that tax year to submit. Our agents file at the correct time and ensure it is submitted for the right year.
What Happens After Submission?
HMRC typically processes R40 claims within 6–8 weeks. Once approved, any repayment is made by HMRC directly to the claimant’s bank account. Our agents track every submission and forward HMRC correspondence to you promptly.
Higher rate taxpayers may not be eligible. In some cases additional tax may be due instead — we assess this before any claim is submitted.
Frequently Asked Questions
No. The R40 is a standalone repayment claim form entirely separate from self-assessment. You do not need to be registered for self-assessment to file an R40, and submitting one does not trigger self-assessment obligations. It is a much simpler document targeted specifically at recovering over-deducted tax from savings and similar income.
Yes — R40 forms can be submitted directly to HMRC by post or online. However, the form requires precise figures, the correct tax year references, and accurate completion to avoid rejection or delays. Our agents ensure it is completed accurately and filed in the optimal tax year to maximise your repayment.
No. The R40 is a routine repayment form processed by HMRC regularly. Submitting one following a car finance compensation payout is entirely normal and does not trigger any form of audit or investigation.
There is no upfront cost. Our fee is 39% + VAT of any successful rebate — if HMRC does not repay anything, you pay nothing. We confirm our fee clearly before any claim is submitted.
HMRC typically processes R40 repayment forms within 6–8 weeks of receipt. Our agents handle all communication with HMRC and will update you when a decision is made.
Yes. You can register your interest now and our agents will file your R40 tax rebate claim in the correct tax year once your compensation is paid. The FCA expects most payouts to be issued during 2026.
Ready to Submit Your R40?
Our HMRC-registered agents handle your R40 from start to finish — no upfront cost, no paperwork on your end, no contact with HMRC required.