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Flat Rate Expenses Calculator

Find your HMRC flat rate expense allowance, calculate your tax saving, backdate your claim up to 4 years, and get step-by-step instructions to claim via P87 or Self Assessment. Covers 70+ occupations from EIM32712 for 2025/26.

Search by job title or industry. 84 occupations from HMRC EIM32712.
Your marginal tax rate determines how much you save

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How to Use This Calculator

Find My Allowance tab

Search for your occupation using the dropdown—it covers 70+ occupations from HMRC’s official EIM32712 table. Select your income tax band (20%, 40%, or 45%) to see your annual flat rate allowance and exact tax saving. The calculator shows what you’d save at every tax rate for comparison.

Backdate Claim tab

Select your occupation, tax band, and how many years you want to claim. You can backdate up to 4 previous tax years plus the current year (5 total). The calculator shows a year-by-year breakdown and your total refund. Add any additional employment expenses (professional subscriptions, tools above the flat rate) to see the combined refund. If the total exceeds £2,500, you’ll need Self Assessment instead of the P87 form.

Claim How-To tab

Enter your total expenses amount to find out whether to use the simple P87 form or a Self Assessment tax return. The calculator gives step-by-step instructions for each route, including online, post, and phone options, plus links to the relevant GOV.UK pages.

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The Formula

Flat rate expenses reduce your taxable income, not your tax bill directly. The tax saving depends on your marginal rate:

Tax Saving = Flat Rate Allowance × Marginal Tax Rate

Example: £125 (nurse) × 20% = £25/year saving

Example: £1,022 (airline pilot) × 40% = £408.80/year saving

Backdated refund = Annual Allowance × Tax Rate × Number of Years

Example: £140 (police officer) × 20% × 5 years = £140 total refund

P87 threshold: Total expenses under £2,500 > use P87
Total expenses £2,500+ > use Self Assessment

HMRC sets these flat rate amounts based on the average annual cost of repairing, maintaining, and replacing uniforms, protective clothing, and small tools for each occupation. You do not need to keep receipts or prove the exact amount spent.

Example

Sarah — NHS Nurse, 34, Manchester

Sarah is a full-time NHS nurse who washes her own uniform at home. She is a basic-rate (20%) taxpayer and has never claimed flat rate expenses.

Find My Allowance

OccupationNurses, midwives, chiropodists, therapists
Flat rate allowance£125/year
Tax bandBasic rate (20%)
Annual tax saving£25

Backdate Claim (5 years)

Years claimed5 (2021/22 to 2025/26)
Total flat rate claim£625
Total tax refund£125
Claim methodP87 form (under £2,500)

Sarah claims £125 by submitting a P87 form online via her Government Gateway account. HMRC also adjusts her tax code so she gets the £25 relief automatically each future year.

Tom — Airline Pilot, 41, Surrey

Tom is a higher-rate (40%) taxpayer who has never claimed. His flat rate is £1,022 (one of the highest).

Annual flat rate£1,022
Annual saving at 40%£408.80
5-year backdated refund£2,044
Claim methodP87 form (under £2,500)

Tom receives a £2,044 refund by backdating 5 years. With the additional £110 travel expenses deduction (EIM50050), his total could be even higher.

FAQ

Flat rate expenses (also called fixed deductions) are standard amounts that HMRC allows certain employees to deduct from their taxable income. They cover the cost of washing, repairing, and replacing uniforms, protective clothing, and small tools required for your job. The amounts are set by industry and occupation in HMRC’s Employment Income Manual at EIM32712. Over 70 occupations are listed, with amounts ranging from £60 to £1,022 per year. You do not need to keep receipts—the flat rate is accepted as your deduction.
Teachers do not have a specific HMRC flat rate expense allowance. This is a common misconception. Teachers can only claim the standard £60 if they are required to wear and wash a specific uniform or protective clothing provided by their school. Ordinary work clothes (a suit, smart dress) do not qualify. However, teachers can claim actual expenses separately for professional subscriptions (such as teaching union fees) if required by their employer.
You can claim for the current tax year plus backdate up to 4 previous tax years. As of 2025/26, that means you can claim back to 2021/22—but the deadline to claim for 2021/22 is 5 April 2026. After that date, 2021/22 drops off and you can only go back to 2022/23. Many employees never claim because they don’t know about it, so a backdated claim can produce a useful lump-sum refund.
The P87 form is a simple one-page form for employed people whose total employment expenses are under £2,500 and who do not need to file a Self Assessment return for any other reason. You can submit it online, by post, or by phone. Self Assessment is required if your total expenses exceed £2,500, or if you already file a return for other income (self-employment, rental, etc.). In that case, you enter your flat rate expenses on the Employment page of your tax return.
Yes, the £6/week working from home tax relief is being abolished from April 2026. However, this does not affect flat rate expenses for uniforms, tools, and protective clothing—these continue unchanged. The two reliefs are completely separate. Flat rate expenses under EIM32712 are long-standing agreements between HMRC and trade unions, and there are no current plans to change them.

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