TL;DR: The time HMRC takes to pay a tax refund depends on how it arose and how it is being claimed. Pension overpayment claims using P55, P53Z or P50Z submitted online are typically processed within around 30 working days. PAYE refunds via a P800 calculation issued after the year-end are normally paid within 5 working days of the calculation if the taxpayer chooses bank transfer through the personal tax account, or within 60 days if HMRC sends a cheque. Self assessment refunds for the previous tax year are normally paid within 5 to 14 working days of the return being processed, depending on whether security checks are needed. Postal claims and complex cases take longer, sometimes considerably so during peak periods.
Last reviewed May 2026
"How long should a tax refund take?" sounds like a single question with a single answer, but in practice the time depends entirely on the route. HMRC handles refunds through several different processes: PAYE end-of-year reconciliation (P800), pension overpayment claims (P55, P53Z and P50Z), self assessment, in-year flat-rate expense claims, and corrections through the personal tax account. Each has its own typical processing time.
The published HMRC service standards give an indicative time for each route. Actual times can be longer in periods of high demand, particularly the months after the 31 January self assessment deadline and the months following the end of the tax year on 5 April, when many P800 calculations are issued.
This guide sets out the typical timescales for each type of refund, the factors that lengthen the wait, and the steps that move things along.
P800 reconciliation refunds: the most common route
HMRC reconciles the tax position of most PAYE-only taxpayers automatically after the end of the tax year on 5 April. Where the figures show too much tax has been paid, HMRC issues a P800 calculation explaining the position and offering a refund. P800s are typically issued from June through to October following the end of the tax year, although the exact timing varies.
Once the P800 has been issued, the taxpayer can either accept a bank transfer through the personal tax account on GOV.UK or wait for HMRC to issue a cheque. The bank transfer route normally results in payment within around 5 working days of the request. The cheque route is much slower; HMRC's published standard is up to 60 days.
The personal tax account is by some margin the fastest route. Setting up the account is one of the higher-yield tax-admin tasks for any PAYE taxpayer.
Pension overpayment refunds: P55, P53Z and P50Z
People who have been overtaxed on a flexible pension withdrawal can claim the overpayment back without waiting for the year-end reconciliation. Three forms are used depending on whether the pension pot has been fully emptied and whether the saver has other taxable income in the year.
HMRC's published standard for online pension overpayment claims is around 30 working days from the claim being submitted. In practice, many claims are processed faster, particularly outside peak periods. Postal claims take longer.
The refund is paid directly into the bank account given on the claim form. If no claim is made, HMRC reconciles the position automatically after 5 April through the P800 process, which can mean waiting many months for the same money.
Self assessment refunds
For self assessment taxpayers, refunds are calculated as part of the return. Once the return is filed and processed, the overpayment shows in the self assessment statement. The taxpayer can then request the refund through the self assessment service in the personal tax account.
HMRC's published standard for online self assessment refunds is normally within 5 working days of the request, provided no security checks are needed. Where HMRC's risk system flags the return for security checks (which can happen for first-time filers, large refunds or unusual entries), the process can take significantly longer.
Repayments can also be set against future liabilities or carried forward against the next payment on account, depending on what the taxpayer asks HMRC to do. The default is to issue the refund.
In-year code corrections and flat-rate expense claims
An employee whose tax code is corrected during the year normally receives any refund of overpaid tax through their pay. The new code is operated cumulatively and the next pay period reflects the year-to-date position, including a refund of any overpayment from earlier in the year. There is no separate refund process for the in-year correction; the money is repaid through PAYE.
Flat-rate expense claims (such as the uniform allowance or professional subscriptions) submitted using form P87 or through the personal tax account can be backdated up to four tax years. For the current year, the relief is normally given through a code change. For earlier years, HMRC issues a refund cheque or bank transfer; the published time is around 6 to 12 weeks, although faster turnaround is common for simple online claims.
Marriage Allowance backdated claims work in a similar way: the relief for past years is paid as a refund, while the current year's relief is given through the code change.
Why refunds sometimes take longer
Several factors lengthen the typical wait. First, HMRC's risk and compliance checks: large refunds, returns with unusual entries, or claims by first-time filers may be referred for additional checks. The taxpayer is generally not told the claim has been referred until the check is complete.
Second, peak workload periods. The months after 31 January (the self assessment deadline) and the months from May to September (when P800 calculations are issued and many flat-rate expense claims for the prior year arrive) are HMRC's busiest. Average turnaround times often lengthen during these periods.
Third, postal versus online routes. Anything sent by post and processed manually takes longer at every stage. Online routes through the personal tax account are typically several times faster.
Fourth, missing or wrong information. A claim that is incomplete, has the wrong bank details, or relies on figures that do not match HMRC's records will be paused until the position is resolved. Providing complete and accurate information at the outset is the single most important way to get the refund quickly.
Chasing a refund and the HMRC service
HMRC's published service standards and any current delays are stated on GOV.UK. Where a refund has not arrived within the published time, the personal tax account often shows the current status. For self assessment, the SA online service shows the statement and any refund processing.
If the published time has passed and the personal tax account does not give a clear answer, calling HMRC's helpline is the next step. Hold times can be substantial during peak periods. The webchat function is available for some queries and is sometimes faster than the phone line.
Where an HMRC delay has caused a financial detriment (for example, the taxpayer has incurred bank interest because they could not access the refund), the Adjudicator's Office can consider complaints about HMRC. Most refund queries do not need to escalate that far; the personal tax account and the helpline resolve the majority.
Disclaimer: This article is general information about HMRC tax refund processing times. It is not personal tax advice. Times can vary by route, by individual case and by HMRC workload. Anyone unsure about a refund should check the personal tax account on GOV.UK or contact HMRC directly. Where a refund has not been received and an enquiry is needed, the personal tax account is normally the fastest route.
Frequently asked questions
How long does HMRC take to pay a P800 refund?
Once the P800 calculation has been issued, accepting the refund through the personal tax account on GOV.UK normally results in payment by bank transfer within around 5 working days. If HMRC issues a cheque instead, the published standard is up to 60 days.
How long does a pension overpayment claim take?
Online claims using P55, P53Z or P50Z are typically processed within around 30 working days, with the refund paid into the bank account given on the form. Postal claims take longer. Outside peak periods, faster turnaround is common.
How long does a self assessment refund take?
Self assessment refunds are normally paid within 5 working days of the request, provided no security checks are needed. Where the return is flagged for additional checks, the process can take significantly longer. The personal tax account shows the current status.
What if my refund is much later than expected?
Check the personal tax account first; it normally shows the current status. If the published service time has passed and the account does not give a clear answer, call the HMRC helpline. The webchat function can be faster than the phone line for some queries during peak periods.
Why is HMRC slower at certain times of year?
HMRC's busiest periods are the months after the 31 January self assessment deadline and the summer months when P800 reconciliations are issued. Average turnaround times often lengthen during these periods. Choosing online over postal routes and submitting a complete and accurate claim are the two largest factors within the taxpayer's control.
How we verified this
The published service standards for HMRC refund processing reflect the GOV.UK service standards page and HMRC's most recent operational performance reports. The structure of P800 reconciliations, the use of forms P55, P53Z and P50Z and the role of the personal tax account reflect current HMRC processes. Self assessment refund processes reflect the Self Assessment online service and HMRC's published guidance. Times should be checked on GOV.UK at the time of any individual claim, as service standards change with HMRC's operational position.
