If you think that you have paid too much tax to HMRC you can usually claim back any overpaid tax. The exact method for making a claim depends on a number of factors including whether or not you complete a Self-Assessment return and the length of time that has passed since the tax was overpaid.
Claims can usually be backdated for up to four years after the end of the relevant tax year. This means that claims can still be made for tax refunds dating back as far as the 2017-18 tax year (which ended on 5 April 2018). The deadline for making claims for the 2017-18 tax year is 5 April 2022.
According to HMRC you may be able to claim a refund if you have paid too much tax on:
pay from your current or previous job
pension payments
income from a life or pension annuity
a redundancy payment
a Self-Assessment tax return
interest from savings or PPI
foreign income
UK income if you live abroad
fuel costs or work clothing for your job.
HMRC is currently undertaking the annual reconciliation of PAYE for the tax year 2020-21. HMRC use salary and pension information to calculate if the correct amount of tax has been paid. Where the incorrect amount of tax has been paid, HMRC use the P800 form to inform taxpayers. HMRC expects to send all P800 forms by the end of November 2021. The P800 will notify you if you have overpaid or underpaid tax.
If you need any assistance in understanding and checking a P800 form or making a claim for overpaid tax, we are here to help.