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Side Hustles & Self-employment

Reselling, gigs and the taxman.

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Reselling, gig work and freelancing: when you need to tell HMRC, the trading allowance, Self Assessment and keeping records, explained for UK side hustlers.

  1. 1

    Decluttering or a business?

    Free●○○○○ difficulty

    Selling your own unwanted stuff ≠ a business. Buying to resell, making to sell, or selling a service regularly = trading.

  2. 2

    The £1,000 freebie

    Free with a code●○○○○ difficulty

    Trading allowance: £1,000 of gross trading income per tax year, tax-free. Under it? Usually nothing to report.

  3. 3

    Side Hustle HQ

    Game Free with a code●●○○○ difficulty

    Revenue − costs = profit. Profit is the number that matters (and the one that gets taxed).

  4. 4

    Registering for Self Assessment

    Free with a code●●○○○ difficulty

    Over £1,000 trading income? Register for Self Assessment by 5 October after the tax year ends, on gov.uk.

  5. 5

    Receipts or it didn't happen

    Free with a code●●○○○ difficulty

    Record every sale and cost as it happens. Keep records for at least 5 years after the 31 January filing deadline.

  6. 6

    Allowable expenses tier list

    Free with a code●●●○○ difficulty

    Allowable expenses = costs wholly and exclusively for the business. They reduce taxable profit. Personal spending doesn't.

  7. 7

    Deadlines & payments on account

    Free with a code●●●○○ difficulty

    Online return + payment: 31 January. Late = £100 penalty. Bills over £1,000 can trigger payments on account (31 Jan & 31 Jul).

  8. 8

    NI for the self-employed

    Free with a code●●●○○ difficulty

    Self-employed NI: Class 4 at 6% on profits £12,570–£50,270, 2% above. Class 2 counts as paid above £7,105 profit.

  9. 9

    The platforms are telling HMRC

    Free with a code●●●●○ difficulty

    Platforms report goods sellers with 30+ sales or about £1,700+ a year (services: any amount). Reported ≠ taxed. Decluttering at a loss is generally not taxable.

  10. 10

    Pricing your work

    Free with a code●●●●○ difficulty

    Price to cover costs, your time, fees and tax. If your hourly rate is under minimum wage, it's a hobby with homework.

  11. 11

    Ronnie wants to buy your jacket

    Free with a code●●●●○ difficulty

    Overpayment requests, off-platform payments, fake courier links and 'easy £500 for using your account' = scams. Stay on-platform.

  12. 👑

    BOSS: 31 January

    Game Free with a code●●●●● difficulty

    Under deadline pressure: rebuild records from bank statements, file online by 31 January, pay through gov.uk — and ignore 'HMRC' links.

Side Hustles & Self-employment: quick answers

Which is the strongest sign you're running a business, not decluttering?

You buy or make things with the aim of selling them for profit. Yes! Intention to profit, regular sales and buying stock are the big signs HMRC looks at.

Side Hustles & Self-employment: in-depth guides

Browse the whole money library or play the free money games.