How you'll get tax relief
The way you get tax relief depends on the amount you claim.
Claims up to £2,500
If your claim is £2,500 or less for the tax year, HM Revenue and Customs (HMRC) will usually make any adjustments needed through your tax code for the current tax year.
If you claim an estimated amount, HMRC will review it at the end of the tax year and make any adjustments needed through your tax code for the following year.
Claims over £2,500
If your claim is over £2,500 for the tax year, HMRC will give you relief through your tax code for the current and next tax years, and will send you a tax return to fill in.
They will also check your tax calculation for the previous year.