Selling on Vinted, eBay or Etsy: When HMRC Actually Cares

The headlines call it a “side hustle tax”. The platform has asked for your National Insurance number. A friend swears HMRC can now see every sale you make. It sounds alarming — but for most casual sellers, the truth is much calmer. There is no new tax on selling online. The tax rules are the same ones that have applied for years; what changed is that platforms now pass HMRC information about bigger sellers.

Selling your own stuff is not trading

If you are clearing out your own belongings — clothes you no longer wear, toys the kids have outgrown, the odd unwanted gift — that is not a business, and HMRC says you don’t usually need to tell them about it at all. Most used belongings sell for less than you paid for them anyway, so there is no profit for anyone to tax. Sell as much of your own wardrobe as you like: on its own, a clear-out creates no tax and no tax return.

The one exception is a big-ticket item. If you sell a single personal item — or a collection — for more than £6,000, you may need to tell HMRC because Capital Gains Tax might apply to the gain. Below that figure, gains on personal possessions are exempt. One trap to know: items that form a set — matching pieces that are worth more together than apart — are treated as a single item for the £6,000 limit, even if you sell the pieces separately to the same buyer. A £500 coat is nothing to worry about; a valuable antique set is where this rule bites.

When selling becomes trading

HMRC starts caring when the selling itself is the point. You are likely to be trading if you buy things with the intention of selling them on for a profit, make things to sell, or sell regularly in an organised, business-like way. Tax people call the tell-tale signs the “badges of trade”, but in plain English it comes down to questions like these: Did you buy it in order to sell it? Do you sell often, and does it look run like a business? Did you repair or improve the item to make it sellable? Was making a profit the reason you started? Charity-shop flips, upcycled furniture sold week after week, and a handmade candle shop all point to trading — however small the operation feels.

Trading brings in the £1,000 rule. Every individual gets a £1,000 trading allowance each tax year, across all platforms and side hustles combined. If your gross trading income — the total before expenses — passes £1,000, you need to register for Self Assessment and declare it. Our guide to the £1,000 trading allowance explains how the allowance works in full; the short version is that the first £1,000 is tax-free and paperwork-free, and the line is on everything you sell as a trader added together, not per app.

Yes, the platforms report — and no, that is not a tax bill

Since 1 January 2024, UK platforms have had to collect information about their sellers and report details and income to HMRC. Reports cover a calendar year and are sent by the following 31 January. There is a casual-seller exclusion: your details are not reported if, in that calendar year, you made fewer than 30 sales of goods and received less than 2,000 euros (about £1,700) for them. Both halves have to apply — 40 small sales will be reported even if they only added up to £600.

If you are reported, the platform has to give you a copy of what it sent — and GOV.UK states plainly that this does not automatically mean that you owe tax. A report is information, not an assessment. If all you did was clear out your loft, nothing changes: you were never trading, so there is nothing to declare. One practical note: platform figures run January to December, while your tax year runs 6 April to 5 April, so a seller statement is a helpful record, not a number you copy straight onto a return.

Two sellers, two very different answers

Amara clears her wardrobe. Over a year she sells 42 items of her own clothing on Vinted for £680 in total — everything bought for herself originally, and sold for less than she paid. Because she made more than 30 sales, Vinted includes her in its report to HMRC and sends her a copy. She owes nothing and files nothing: she is not trading, and no single item came anywhere near £6,000.

Dan runs a quiet little business. Every weekend he buys vintage jackets from charity shops and resells them on eBay and Vinted. This year he took £600 on one platform and £900 on the other. That is trading, and because his combined gross income is £1,500 — over the £1,000 allowance — he must register for Self Assessment and declare it, keeping records of what he paid for stock, the platform fees, and postage.

If you are trading: the short to-do list

Register. If your trading income passes £1,000 in a tax year, register for Self Assessment by 5 October following that tax year, and file your return online by 31 January.

Keep records as you go. HMRC expects full and accurate records of all sales, income and business expenses. What you paid for stock, platform fees, packaging and postage all count as costs — and allowable expenses are what reduce your profit to the amount you are actually taxed on. Saving the platform’s annual statement helps, but your own running record is the thing that makes January painless. Our plain-English guide to allowable expenses for the self-employed breaks down what counts. And as your income grows, keep an eye on Making Tax Digital — its thresholds may eventually apply to you too.

How Lemon fits

If you sell across two or three apps, the hard part is knowing your combined total. Lemon lets you log each sale and its costs as they happen, tag them by platform, and pull up a report whenever you want — so you can see your gross trading income building through the year and know, well before 5 October, whether you have crossed the £1,000 line.

This article is general information, not tax advice. For your specific situation, talk to an accountant.

Download Lemon free on the App Store or Google Play — log each online sale as you go and watch your trading total through the year.