Prop Firm Income and Tax in the US, UK and Australia

In the United States, the United Kingdom and Australia, payouts from a prop firm are generally taxable income in the year you receive them, and they are commonly reported as self employment or business income rather than as capital gains, because the firm pays you for performance rather than you trading your own money. This is general information, not tax advice: the right treatment depends on your circumstances, so check with the IRS, HMRC or the ATO, or with a qualified adviser, before you file.

Why payouts are usually treated as income

A prop firm trader does not own the account. At many firms the account is simulated: FTMO, for example, states that all the accounts it provides are demo accounts with fictitious funds. What the trader receives is a payment from the firm under a contract, and some firms describe the relationship in those terms. Topstep‘s tax page tells traders they are independent contractors, not employees.

That framing matters because it usually moves the question away from capital gains and towards income. The practical questions become whether your activity counts as a business, which expenses you can deduct, and whether extra taxes such as self employment tax or National Insurance apply. Only the amount you are paid counts, not the profit shown on the account: Topstep’s own example is a funded account that earned $5,000 where the trader requested $1,000, and the amount to report is $1,000.

United States

A US based firm that treats traders as contractors may report payouts on Form 1099 NEC, the IRS form for nonemployee compensation. Topstep states that it sent 2025 forms on 31 January 2026 to US citizens who received more than $600 in payouts, that US citizens complete Form W9 and traders outside the US complete Form W8BEN, and that the form shows the gross payout before processing fees. In its example, a $500 payout with a $30 fee shows $500 on the form, and the trader deducts the $30 as a business expense.

The IRS rules on self employment then apply. The IRS says you usually must pay self employment tax if you had net earnings from self employment of $400 or more, that net earnings are gross income minus ordinary and necessary business expenses, and that generally 92.35% of net earnings is subject to the tax. Individuals generally have to make estimated tax payments if they expect to owe $1,000 or more when they file. US citizens and resident aliens are taxed on worldwide income, so a payout from an overseas firm that sends no form is still reportable.

United Kingdom

HMRC decides whether an activity is a trade by looking at the badges of trade, which include a profit seeking motive and the number of transactions; its manual notes that systematic and repeated transactions support trading. Where the activity is a trade, payouts are reported as self employment income through Self Assessment. GOV.UK also says that UK residents normally pay tax on foreign income, so an overseas payer does not take a payout outside UK tax.

GOV.UK states that you must register for Self Assessment as a sole trader if you earn more than £1,000 from self employment in a tax year, which runs from 6 April to 5 April. The trading allowance lets individuals receive up to £1,000 of gross trading income a year tax free, and above that you can deduct the £1,000 allowance instead of your actual expenses, which only helps if your expenses are lower. You must tell HMRC by 5 October if you need to complete a return for the previous tax year, and the online return and payment are due by 31 January. Making Tax Digital for Income Tax applies from 6 April 2026 to people whose qualifying income from self employment or property was over £50,000 in the 2024 to 2025 tax year, and the threshold falls to £30,000 from April 2027 and £20,000 from April 2028.

Payouts often arrive in US dollars, so record the sterling value of each one and the exchange rate you used.

Australia

The ATO says a business generally involves continuous and repeated activities carried out for the purpose of making a profit, and that activities are not a business when they are a hobby or a one off. It also says that even if you are not in business, you may still need to declare certain payments as assessable income, such as income from providing services. Australian residents for tax purposes must declare income earned anywhere in the world, including from business activities and personal services, so a payout from an overseas firm belongs in your Australian return.

Whether you are in business affects which costs you can claim, including evaluation fees and data subscriptions, so this is the point to check with the ATO or a registered tax agent. Convert each payout to Australian dollars and keep the rate you used.

Worked example: a made up trader’s year

Take a made up trader who receives four payouts of $3,000 in a tax year, pays $1,400 in evaluation fees and pays $120 in payout processing fees. The figures are an illustration only, and the treatment in each country depends on the trader’s circumstances.

In the United States, if the activity is a business and self employment tax applies, the IRS rule means 92.35% of the $10,480, or $9,678.28, would be subject to that tax, on top of income tax on the profit. In the United Kingdom, if the same figures were in pounds, the trader could deduct actual expenses of £1,520 or the £1,000 trading allowance, and actual expenses give the lower taxable figure of £10,480. In Australia, the deduction question turns on whether the trader is in business. In every case, any fee refund, such as the evaluation fee some firms repay with a later payout, needs recording too, because it changes the net figure.

Records to keep

• Every payout: date, gross amount, fees and the amount received.
• The exchange rate used to convert each payout into your own currency.
• Every evaluation, reset, activation and add on purchase, with receipts.
• Any fee refunds and the payout they came with.
• Tax forms and statements from the firm and from Rise or other payment platforms.

Common mistakes

• Assuming no form means no tax. Overseas firms may send nothing, but the income is still reportable in all three countries.
• Reporting account profit instead of payouts. Only the amounts paid to you count as received.
• Netting fees before reporting when the form shows the gross amount. Report the gross and deduct allowable costs separately.
• Treating payouts as capital gains without checking. The firm is paying you, not selling you an asset.
• Missing registration deadlines, such as HMRC’s 5 October date, or US estimated tax payments.
• Losing exchange rate records, which makes the return hard to prepare and to defend.

Checklist

• Decide, with help if needed, whether your trading is a business for tax purposes.
• Register with the tax authority on time if you need to.
• Keep a payout and expense log from the first purchase.
• Set aside part of each payout for tax.
• Check the official IRS, HMRC or ATO guidance linked in the sources, or speak to an adviser.

Payout records start with the method you choose, covered in prop firm payout methods, and the share you keep is explained in prop firm profit split explained. For whether trading can support you, read can you make a living with prop firms. Country guides cover US traders and Australian traders, and more payout guides sit in payouts and scaling.