VAT Bad Debt Relief: Reclaiming VAT on Invoices That Will Never Be Paid

By John Thomas, Senior Accountant

You did the work, you issued the invoice, you accounted for the output VAT, and the customer never paid. Under standard VAT accounting, you paid HMRC VAT on money you never received, which adds insult to injury. VAT bad debt relief exists for exactly this situation: it lets you reclaim the VAT you accounted for on unpaid invoices. Many businesses never claim it, either because they do not know it exists or because the conditions seem fiddly. They are not.

How the relief works

When you issue a VAT invoice under standard accounting, you declare the output VAT on your return for that period, whether or not the customer has paid. If the debt later goes bad, bad debt relief lets you reclaim that VAT, effectively unwinding the output tax you paid on income you never received.

The relief is claimed on the VAT return for the period in which the conditions are met, as an increase to your input VAT. There is no separate form and no need to ask HMRC's permission in advance. You simply need to meet the conditions and keep the records.

The conditions, in plain terms

All of the following must apply:

  • The debt is more than six months old. Measured from the date the payment was due, or from the date of the supply if no payment date was set. Not from the invoice date, which trips people up when payment terms are long.
  • The debt has been written off in your accounts. A formal write-off entry in the sales ledger, not just a mental note that the customer is unlikely to pay.
  • You accounted for the VAT and paid it to HMRC. Relief only unwinds VAT you actually declared. If you never declared it, there is nothing to reclaim.
  • The supply was made to a UK customer. Bad debt relief does not apply to supplies outside the scope of UK VAT in the same way, so check the place-of-supply position on cross-border debts.

Note what is not required: you do not need to have taken the customer to court, hired a debt collector, or proved the customer is insolvent. The six-month rule and the write-off are the substance of the test.

How to claim it

First, review the aged debtor report for invoices where payment was due more than six months ago and remains unpaid. For each one, confirm the VAT was declared on the original return, then write the debt off in the accounts with a clear journal entry referencing bad debt relief.

On the VAT return, the reclaimed VAT goes in Box 4 as input tax. Keep a dedicated bad debt relief schedule showing, for each invoice: the customer name, invoice number and date, the date payment was due, the VAT amount reclaimed, and the period in which it was claimed. This schedule is the first thing HMRC asks for in a VAT visit.

If the customer later pays, the relief reverses: you repay the VAT on the return for the period you receive payment. The schedule should track recoveries too, so nothing falls through the cracks.

Common errors

Claiming too early. The six months run from when payment was due, not from the invoice date. With 60-day payment terms, the earliest claim point is eight months after invoicing.

No write-off in the accounts. The debt must actually be written off, with a journal to prove it. Debts left sitting in the ledger as overdue do not qualify.

Forgetting partial payments. If the customer paid part of the invoice, relief applies only to the unpaid VAT element. Work it out invoice by invoice rather than guessing.

Cash accounting confusion. Businesses on the VAT cash accounting scheme do not need bad debt relief at all, because they only account for VAT when paid. If you are on cash accounting and claiming bad debt relief, one of the two is wrong.

Missing the time limit. Claims must generally be made within four years. Old written-off debts cannot be resurrected indefinitely.

Build it into credit control

The best approach is procedural, not occasional. Add a quarterly step to the credit control routine: list debts over six months past due, confirm write-off, claim the relief, update the schedule. It takes an hour, and for businesses with chronic late payers it recovers real money every quarter.

And treat repeated bad debt relief claims as management information. If the same customer or the same sector keeps generating claims, the problem is credit control policy, not VAT.

If VAT compliance keeps slipping between the cracks of a busy finance function, get it handled properly. Finex Outsourcing prepares VAT returns for UK businesses with reliefs like bad debt relief claimed as routine, and their VAT outsourcing services cover the reconciliations and checks that make sure no reclaim is ever missed.

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