The short answer
For most people on Vinted, selling is not taxable. If you're selling your own unwanted personal belongings — clothes you've grown out of, a coat you never wear, your kids' outgrown things — that's generally not trading, so it usually doesn't create any tax to pay or anything to report, however much it totals.
You may owe tax only if you're trading: buying or making things specifically to sell on for profit. And even then, there's a £1,000 tax-free trading allowance, so you normally only need to tell HMRC once your gross trading income passes £1,000 in a tax year.
Selling your own stuff vs. reselling for profit
The whole question turns on why you're selling. HMRC looks at the purpose behind it:
- Not taxable (most Vinted users): you're selling things you originally bought to use — your own worn clothes, shoes, bags, a decluttered wardrobe. This is generally free of Income Tax no matter the total, and you don't need to register just because you sell a lot of your own things.
- Potentially taxable (a business): you buy items to flip — thrifting bargains to resell, buying wholesale, making clothes or crafts to sell — with the intention of making a profit. That's trading, and once you're over £1,000 gross in a year you normally need to register for Self Assessment.
Selling regularly doesn't by itself make you a trader. Someone steadily emptying a full wardrobe over a year is still selling personal possessions; someone buying job lots to resell every week is trading, even if the amounts are similar.
"Vinted asked me to confirm my details" — do I owe tax now?
No — this trips a lot of people up, so it's worth being clear. Since January 2025, digital platforms including Vinted must report a seller to HMRC if that seller makes 30 or more sales or receives around £1,700 (€2,000) or more in a calendar year. To do that, Vinted has to collect details like your name and (in some cases) National Insurance number.
This is a data-sharing rule, not a new tax, and it's not an instruction to register. HMRC's own guidance states that being reported "does not automatically mean you owe tax." If you're just selling your own used items, you can be reported and still owe nothing. Whether you actually owe tax comes back to the same two questions: are you trading, and are you over the £1,000 allowance?
Had a letter from HMRC about your online sales? See what to do if HMRC writes to you: what the letter means, which tax years to check, and how to put earlier years right.
Three worked examples
These are illustrative, using 2025/26 rules:
- Priya declutters. She sells £2,400 of her own old clothes and baby things over the year. She bought them to use, not to resell — so this is not trading. No tax, no need to register, even though she passed the platform's reporting threshold and Vinted asked for her details.
- Sam does a little reselling. He buys charity-shop finds to flip and takes £900 gross doing it. He's trading, but he's under the £1,000 trading allowance, so it's covered — he generally doesn't need to tell HMRC.
- Mia runs a side business. She buys and resells trainers, taking £6,000 gross with £2,500 of costs (stock, postage, packaging). She's trading and over £1,000, so she needs to register for Self Assessment. She'll deduct either the £1,000 allowance or her £2,500 of actual costs — whichever leaves less to be taxed (here, her real costs). The calculator picks the better option automatically and estimates the tax.
If you are trading — what you'd actually pay
If you're over the £1,000 allowance, your side-hustle profit (income minus the allowance or your real costs) stacks on top of your other income and is taxed at your marginal rate — 20% in the basic-rate band, 40% in the higher-rate band. If your total self-employed profit is over £12,570 you may also pay Class 4 National Insurance (6% up to £50,270, 2% above). The side-hustle tax calculator estimates Income Tax and Class 4 NI together for the tax year you choose, and gives you a printable / CSV record for HMRC.
Deadlines, if you do need to register
If you decide you need to register for the 2025/26 tax year (6 April 2025 to 5 April 2026): register by 5 October 2026, and file your online return and pay any tax by 31 January 2027. Our guide to registering for Self Assessment walks through who has to, the deadlines, and how to do it. Missed the 31 January deadline already? See what it costs in our guide to Self Assessment late penalties.
Missed 5 October 2026? Register now rather than waiting. HMRC says you "could" get a penalty, but a failure-to-notify penalty is a percentage of the tax that went unpaid because of the delay, and for a non-deliberate failure you tell HMRC about yourself within 12 months of the tax being due, the range starts at 0% (HMRC factsheet CC/FS11). Registering straight away and paying by 31 January 2027 puts you in the best position. Your UTR can take a few weeks to arrive, so don't leave it to January.
Keeping records (and a free AI helper)
HMRC expects records of your sales even if the £1,000 allowance covers you, and a dated list makes the calendar-year platform reports easy to match to the tax year. A free spreadsheet you set up yourself works fine: date, item, sale price, fees, postage, what you paid.
If you use ChatGPT, Gemini or Claude, our free Seller Skills pack sets it up as a selling assistant: it sorts a year's sales into tax-year totals and flags whether you look like a trader, writes honest listings, and drafts replies to buyers. The paid Pro version (£12) adds help with a letter from HMRC about your online sales, pricing after fees, and dispute evidence. Both are made by the same people as this site and are optional: the calculator and guides stay free. They give estimates and drafts, not tax advice.
The same rules apply whether you sell on Vinted, eBay, Depop, Etsy or Facebook Marketplace — it's the trading test and the £1,000 allowance that matter, not which app you use. The calculator also breaks down each platform's seller fees.