When a business has charged VAT on an invoice but the customer fails to pay, UK VAT rules allow you to claim relief on the unpaid VAT. This is known as VAT Bad Debt Relief. It can help protect your cash flow when debts become uncollectible.
Normally, you must pay HMRC the VAT you charge on sales — even if you have not been paid by your customer. However, if a debt becomes bad (i.e., it is unlikely to be paid), you may be entitled to reclaim the VAT you have already accounted for.
Bad debt relief effectively adjusts your VAT liability to reflect the fact that the underlying sale will not be paid.
You can claim VAT bad debt relief when:
You have included the VAT on a sale in a VAT return
The customer has not paid within six months of the date of the invoice
The debt has become irrecoverable
The right to relief arises at the point the debt becomes bad — typically after those six months has passed with no payment.
To successfully claim bad debt relief, you must ensure that:
VAT was correctly charged and accounted for in your VAT return
You have written evidence of attempts to collect payment
The debt is not simply outstanding but is considered irrecoverable
HMRC requires businesses to demonstrate that reasonable steps were taken to collect the debt before relief can be granted.
Supporting evidence might include:
Copies of the original invoice
Statements of account sent to the customer
Follow-up letters or emails chasing payment
Records of phone calls or attempts to contact the debtor
Correspondence where the customer admits inability to pay
Good record-keeping is essential to supporting your claim.
The amount of VAT you can reclaim is generally the VAT element of the bad debt included in your VAT return. In simple terms:
VAT eligible for relief = VAT on the unpaid invoice
You adjust your VAT returns to account for the reclaimed amount, reducing your overall VAT liability.
A claim for bad debt relief should usually be made in the VAT return period in which the debt became bad (after the six-month waiting period). If you miss this period, you may still be able to claim in a later return, but timing and documentation become more complex.
Be aware of these common issues that can invalidate a claim:
Claiming before the six-month period has elapsed
Lack of evidence showing reasonable collection attempts
Trying to claim for debts that are not genuinely irrecoverable
Failing to adjust VAT accounted for in previous periods
Professional advice ensures your claim is valid and compliant.
Bad debt relief can result in a valuable VAT refund or reduced liability, but only if the rules are followed carefully.
Applegrow can assist you with:
Determining whether a debt qualifies for relief
Reviewing your records and supporting evidence
Advising on correct VAT return adjustments
Ensuring claims meet HMRC requirements
If your business is struggling with unrecovered customer debts and you want to explore whether VAT bad debt relief applies, Applegrow can provide clear, practical guidance.
Bad debt relief can result in a valuable VAT refund or reduced liability, but only if the rules are followed carefully.