
How to Reclaim Overpaid Tax from HMRC
The process varies depending on the type of tax, but generally follows these steps:
Step 1: Identify the Overpayment
Review your:
- Submitted returns
- Payment records
- Communications from HMRC
Use your accountant or accounting software to help reconcile the amounts due versus what was actually paid.
Step 2: Make a Claim or Correction
Corporation Tax
- Amend your CT600 return within 12 months of the filing deadline
- Or write to HMRC if the overpayment is clear but outside the amendment window
VAT
- Use a VAT652 form or correct the next return if the error is under £10,000 (or less than 1% of turnover)
PAYE
- Submit an EPS or contact HMRC for manual reclaim
Step 3: Wait for Confirmation
HMRC typically processes tax reclaims within:
- 6 weeks for corporation tax refunds
- 30 days for VAT adjustments
- Up to 8 weeks for PAYE reclaims
Keep a copy of all submissions, proof of payment, and HMRC correspondence in case of delay.
How Far Back Can You Claim?
There are strict time limits for reclaiming overpaid business tax:
- Corporation tax – 4 years from the end of the relevant accounting period
- VAT – 4 years from the end of the accounting period in which the error was made
- PAYE/NICs – Usually up to 6 years
Missing these deadlines could result in lost refunds, so it’s important to act promptly.
Can HMRC Refuse a Refund?
Yes, if:
- The overpayment cannot be evidenced with accurate records
- The claim is made outside the permitted time limits
- The overpayment arose due to fraud or misrepresentation
To reduce the risk of refusal, ensure your records are clear, accurate, and submitted through the appropriate HMRC channels.
How to Avoid Overpaying Business Tax in the Future
While mistakes happen, you can reduce the risk of overpayments by:
- Using cloud accounting software like FreeAgent or Xero to track tax obligations in real time
- Conducting quarterly tax reviews with your accountant
- Double-checking VAT codes and payroll entries before submitting returns
- Keeping accurate digital records to meet Making Tax Digital (MTD) compliance
- Planning ahead for allowable expenses, capital allowances, and reliefs
At Accounting Wise, we support UK small businesses with proactive tax planning, helping you stay compliant while avoiding unnecessary tax liabilities.
Summary: Reclaiming Overpaid Tax
Tax Type | Reclaim Method | Time Limit |
Corporation Tax | Amend CT600 / contact HMRC | 4 years |
VAT | Correct return or use VAT652 | 4 years |
PAYE/NICs | Submit EPS or contact HMRC | Up to 6 years |
CIS | Submit reclaim via CT600 or online | Varies by role |
Need Help Reclaiming Overpaid Business Tax?
Reclaiming tax from HMRC can be time-consuming and complex, especially if you’re managing multiple tax types. At Accounting Wise, we help small businesses identify and recover overpaid corporation tax, VAT, PAYE, and more.
We’ll handle the process, liaise with HMRC, and ensure you receive what you’re entitled to without the stress.