Tax Guide · 2025/26
UK Side Hustle Tax Guide
Etsy, eBay, Vinted, freelance Fiverr work, dog walking, tutoring, a YouTube channel — millions of UK adults have a side hustle. This guide explains the £1,000 Trading Allowance, when you must register for Self-Assessment, what the new online-platform reporting rules mean and how to keep HMRC happy.
The £1,000 Trading Allowance
Since April 2017 UK individuals have had a £1,000 Trading Allowance— a tax-free buffer that covers gross income from self-employment, casual freelance work and miscellaneous “trading” activity.
If your grossside-hustle income for a tax year (6 April to 5 April) is £1,000 or less, you don't need to register for Self-Assessment or declare it. There is also a separate £1,000 Property Allowance for casual rental income — they are independent allowances.
When to Register for Self-Assessment
You must register if any of these apply:
- Gross trading/side income exceeds £1,000 in the tax year
- You make a loss and want to claim it
- You earn over £50,000 with Child Benefit (High Income Child Benefit Charge)
- You have untaxed savings or dividends above the relevant allowances
- You are a company director with untaxed income
- You earn over £150,000 from any source
Deadline: register by 5 Octoberafter the end of the tax year. File by 31 January online (31 October on paper). Late registration risks “Failure to Notify” penalties based on the tax owed.
Selling vs Trading: Selling Personal Items
Selling your own unwanted clothes on Vinted or old gadgets on eBay is nottrading — it's capital disposal of personal possessions, generally exempt under the CGT chattels rules (any single item sold for under £6,000 is exempt). HMRC's 2024 update was clear: tidying your wardrobe doesn't make you a trader.
You are trading if you buy stock to resell, make items to sell, dropship, flip goods or sell with regular profit motive. Once trading gross exceeds £1,000, registration is mandatory.
Online Platform Reporting (Since 2024)
From 1 January 2024, UK digital platforms must report seller data to HMRC each January for the previous calendar year. This covers:
- Online marketplaces (eBay, Etsy, Amazon, Vinted, Depop)
- Short-term lets (Airbnb, Booking.com)
- Ride-sharing and delivery (Uber, Deliveroo)
- Freelance platforms (Upwork, Fiverr)
Reporting kicks in at 30+ sales or roughly €2,000+ income per calendar year. Receiving a report does not create a new tax liability — but it does mean HMRC can cross-check against your Self-Assessment.
How Side Hustle Profit is Taxed
Once registered, you pay Income Tax and Class 4 NI on profit (income minus allowable expenses or the £1,000 allowance):
| Band (2025/26) | Income Tax | Class 4 NI |
|---|---|---|
| Up to £12,570 (personal allowance) | 0% | 0% |
| £12,571 – £50,270 | 20% | 6% |
| £50,271 – £125,140 | 40% | 2% |
| Above £125,140 | 45% | 2% |
Your side hustle profit stacks on top of any employment income, so it is usually taxed at your marginal rate. If you have a day job and a side hustle, the side hustle profit may push you into a higher band.
Worked Example: Etsy Crafts
Ben is employed full-time earning £40,000. He also runs an Etsy shop selling handmade candles. In 2025/26 the shop generates:
- Gross sales (after Etsy fees deducted by platform): £4,800
- Materials: £1,300
- Postage: £400
- Home-office use of household expenses (simplified): £312 (£26 × 12)
Total actual expenses: £2,012. Better than the £1,000 allowance.
Taxable profit: £4,800 − £2,012 = £2,788.
Stacked on top of £40,000 employment income, all £2,788 sits in the basic-rate band: 20% Income Tax (£557.60) + 6% Class 4 NI (£167.28) = £724.88 total tax on the side hustle.
Allowable Expenses Checklist
If you don't use the Trading Allowance you can deduct expenses that are “wholly and exclusively” for the business:
- Stock, materials and packaging
- Platform fees, payment processor fees, transaction fees
- Postage, delivery and courier costs
- Mileage at HMRC approved rates (45p/mile first 10,000 miles)
- Phone, internet — business proportion only
- Subscriptions, software, advertising
- Simplified flat-rate working-from-home: £10/£18/£26 per month based on hours
- Professional fees (accountant, photography for listings)