Prop Firm Tax in the UK: How HMRC Treats Payouts

Prop firm payouts are taxable in the UK. This guide explains how HMRC usually treats them, the key deadlines and the records to keep. It isn’t tax advice: speak to an accountant about your situation. Figures are for the 2026/27 tax year.

[EDITOR: Have a chartered accountant or tax adviser review this page and set them as fact-checker.]

Income, not capital gains or tax-free spread betting

With a prop firm, you’re paid a performance reward under a contract based on a simulated account. HMRC generally treats this as income, most often self-employment trading income reported on the self-employment pages of your return. It isn’t capital gains, and unlike most personal spread betting, it isn’t tax-free.

The £1,000 trading allowance

If your gross trading income for the tax year is £1,000 or less, the trading allowance usually covers it and you don’t need to tell HMRC. Above that, you’ll normally register for Self Assessment. If you claim the allowance, you can’t also deduct actual expenses against that income.

Key dates

National Insurance

If your prop trading is a self-employed trade, Class 4 National Insurance applies to profits: for 2026/27, 6% between £12,570 and £50,270 and 2% above. Class 2 is treated as paid when profits are at least £7,105.

Income tax

Your payouts are added to your other income and taxed at your marginal rate after the £12,570 Personal Allowance: 20%, 40% or 45% in England, Wales and Northern Ireland. Scotland has different income tax bands.

Expenses

If you’re trading as a sole trader and don’t claim the trading allowance, expenses incurred wholly and exclusively for the trade may be deductible, such as challenge fees, resets, platform and data costs and a VPS. Keep invoices.

Converting payouts to pounds

Record the sterling value of each payout on the day you receive it, or use HMRC’s published exchange rates consistently. Keep bank, Wise and crypto exchange statements.

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