Debt

Side hustle tax: what they actually know, and what you actually owe

Every January the selling apps send HMRC a file with your name on it. That has been true since 2024 and the panic has not stopped since: headlines about a "side hustle tax", messages from Vinted asking for your details, and a small industry selling you protection from something most people do not need protecting from. Here is the calm version, with the arithmetic done.

The short answer

Since 1 January 2024, online platforms have had to send HMRC details of what their sellers make. For selling goods they report you if you pass either about £1,700 in a calendar year or 30 sales. Being reported is not the same as owing tax, and no new tax was created. Clearing out your own wardrobe is not trading and is not taxed at all. Buying or making things in order to sell them is trading, and the first £1,000 of trading income each year is covered by an allowance. Most people caught in the headlines owe nothing.

What actually gets sent

The rules started on 1 January 2024. Platforms collect information over a calendar year and hand it to HMRC by the 31 January that follows.

For selling goods, you are reported if you cross either of two lines in the year: about £1,700 of sales, or 30 sales. Cross one and the platform reports you, whether or not you owe anything.

For services, which means driving, delivery, freelance work and letting a room, there is no threshold at all. Every penny is reported.

What they send is who you are and what you made. That is it. And here is the sentence that should have led every article on this subject, from the Low Incomes Tax Reform Group, a charity that exists to explain tax to people on low incomes: the rules "do not create new tax obligations for individuals".

So when Vinted asks for your national insurance number, that is admin. Not an accusation, not an investigation, and not evidence that you owe anything.

The real line: selling your stuff, or trading

Everything turns on one distinction, and it is not about how much you made.

Selling things you already owned, because you no longer want them, is not trading. Your old coat, your school laptop, the trainers that never fitted. You can sell a hundred of them. It is not a business and it is not taxed. If you sell a single personal item for £6,000 or more there is a capital gains question, which is a different page and almost certainly not you.

Buying things in order to sell them, or making things in order to sell them, is trading. From the first item. It does not matter that it is small, or that it is on your phone, or that you call it a side hustle.

HMRC does not leave that to vibes. It publishes the test its own inspectors use, in its own internal manual, and it is called the badges of trade. Nine of them:

Profit seeking motive. Did you do it to make money?
The number of transactions. "Systematic and repeated transactions will support trade."
The nature of the asset. Is it something you would ever have owned for its own sake?
Similar trading elsewhere. Do you already trade in something like it?
Changes to the asset. Did you alter it to make it sell better or for more?
The way the sale was carried out. Did you sell it the way a business would?
The source of finance. Did you borrow to buy it, needing the sale to repay?
The gap between buying and selling. Quick turnaround points to trading.
How you got it. Something inherited or given to you is less likely to be trade.

HMRC's own caveat matters as much as the list: "The presence or absence of a particular badge is unlikely, by itself, to provide a conclusive answer." It is the overall impression, not a checklist score.

In practice three questions catch almost everything. Did you buy it in order to sell it? Do you do it over and over on purpose? Did you change it to make it worth more? Three noes and you are clearing out. One yes and you are trading.

The allowance, and what it actually covers

Trading income up to £1,000 in a tax year is covered by the trading allowance. Under that, there is nothing to register and nothing to declare.

Two details that trip people up. First, the tax year runs 6 April to 5 April, not January to January, which means it does not line up with the calendar year the platforms report on. Second, and this is the big one: the £1,000 is money in, not profit. If £1,200 of sales landed in your account, you are over it, even if the stock cost you £900.

You then choose one of two ways to work out what is taxed: take the £1,000 allowance off your sales, or take your real costs off your sales. Whichever leaves less. Not both.

Row one is not trading, so nothing is due. Rows two to four use the £1,000 trading allowance. Row three is 20% of £1,500 because a job has already used up the personal allowance. Row four leaves £1,500 of income, which sits inside the £12,570 personal allowance, so nothing is due. Rates for 2026/27, checked 26 August 2026.

The two numbers everyone mixes up

Almost every panicked post about this confuses two completely separate thresholds. Keep them apart and the whole thing gets simple.

30 sales, or about £1,700. This is the reporting threshold. It decides whether the platform sends your details to HMRC. It has nothing whatsoever to do with tax. You can sail past it clearing your wardrobe and owe absolutely nothing.

£1,000. This is the trading allowance. It is the one that decides whether you owe anything, and only if you are trading in the first place.

You can be over the first and under the second. Most people are.

And the £3,000 figure doing the rounds: read that one carefully. It is a change to the point at which you must fill in a full Self Assessment return, not a new tax free amount. Trading income over £1,000 is still taxed. It also is not in place yet. It is due at some point before the end of this parliament, and until then nothing has changed.

If you do owe something, the dates

The tax year runs 6 April to 5 April. If you need to tell HMRC about a year, the deadlines are fixed and they are the same every year.

5 October after the tax year ends: tell HMRC you need to file.
31 October: paper return, if you are doing it on paper for some reason.
31 January: online return.
31 January: pay what you owe. Same day. Not later.

Two things worth knowing about the amount. Side hustle profit sits on top of your wage, so if a job has already used your £12,570 personal allowance, everything above the trading allowance is taxed at your job's rate from the first pound. And National Insurance on self employed profits only starts above £12,570, at 6%, so a small side hustle does not trigger it at all.

Trap ahead: the panic is the product

Every January the same wave arrives: headlines about the "side hustle tax", and behind them a queue of people selling tax software, accountancy packages and compliance services to teenagers who sold forty jumpers. Being reported is not being investigated. The rule that decides whether you owe anything is the same rule that existed before 2024, it applies exactly as it did then, and it is free to read on HMRC's own website. When somebody is charging you to be frightened, the fear is the product.

The moves

Screenshot this bit

Keep one note, from day one. Date, what it was, what it cost you, what you sold it for. Ten seconds a sale, and every question you might get asked in two years is already answered.
Know which side of the line you are on before you scale. Clearing out is not trading. Buying to sell is trading from the very first item, however small.
Do not read 30 sales as a tax alarm. It is a reporting number. It tells you nothing about what you owe.
Do not read £1,000 as profit. It is money in, before your costs. Sales of £1,200 on stock that cost £900 still puts you over it.
If you have a job, set aside about a fifth of anything above the allowance. Your personal allowance is already spent on your wage, so the side hustle is taxed from the first pound over £1,000.
Register early rather than exactly on time. 5 October after the tax year ends, then 31 January to file and to pay. Penalties start automatically and they do not care why.
Nobody needs to sell you this. HMRC's guidance is free, and the Low Incomes Tax Reform Group publishes plain English versions written by a charity.

Check it yourself

What the platforms report. Low Incomes Tax Reform Group: digital platform reporting rules: in force 1 January 2024, goods reported above about £1,700 or 30 transactions, services reported with no threshold, filed by 31 January each year, and the rules "do not create new tax obligations for individuals". Checked 26 August 2026.
The test HMRC uses. HMRC Business Income Manual, BIM20205: badges of trade: the nine badges, and the warning that no single one is conclusive.
The £1,000 threshold. GOV.UK: set up as a sole trader: you must register if you earn more than £1,000 in a tax year, 6 April to 5 April.
The deadlines. GOV.UK: Self Assessment deadlines: tell HMRC by 5 October, paper return by 31 October, online return and payment by 31 January.
Selling your own possessions. MoneyHelper: do I have to pay tax when I sell items online: selling your own things is unlikely to be taxable, more than 30 items or about £1,735 triggers reporting, and capital gains only arises on a personal item sold for £6,000 or more.
The £3,000 figure. IPSE: the new £3,000 Self Assessment threshold explained: it changes which form you file, not what is taxed, the £1,000 trading allowance is unchanged, and it is due within this parliament rather than now.
Self employed National Insurance. FreeAgent: Class 4 National Insurance rates 2026/27: 6% on profits from £12,570 to £50,270, then 2%.
Where your wage is already taxed. Our page on your first payslip, and the checker that shows what lands.

Questions people ask

Do I have to pay tax on Vinted?

Only if you are trading. Selling clothes you owned and no longer want is not trading, however many you sell, so there is no tax on it. Buying clothes in order to resell them is trading, and then the first £1,000 of sales in the tax year is covered by the trading allowance. Vinted reporting you to HMRC is a separate thing entirely and does not mean you owe anything.

What is the 30 item rule?

It is the point at which a platform must report a goods seller to HMRC: 30 sales in a calendar year, or about £1,700, whichever comes first. It is a reporting trigger, not a tax threshold, and the two get confused constantly. Clearing out 40 things from your own wardrobe gets you reported and still leaves you owing nothing at all.

How much can I earn from a side hustle before paying tax?

£1,000 of trading income in a tax year, covered by the trading allowance. Note that it is income, not profit: it is the money coming in before you take off what your stock cost. Above £1,000 you register with HMRC, and what you actually pay then depends on your other income, because a side hustle is taxed on top of any wage.

Does Vinted or eBay tell HMRC about me?

Yes, if you pass either threshold. Since 1 January 2024 platforms have had to collect seller details and send them to HMRC by 31 January each year, covering the previous calendar year. For goods the triggers are 30 sales or about £1,700. For services such as driving, delivery or letting a room there is no threshold and everything is reported.

Is the £3,000 side hustle allowance real?

Not as an allowance, no. The £3,000 figure is a change to the point at which you must file a full Self Assessment return, replacing it with a simpler online service for smaller amounts. Trading income above £1,000 is still taxable exactly as it is now. It is also not yet in force: it is expected at some point before the end of this parliament.

Do I pay tax on a side hustle if I already have a job?

Yes, and usually more than people expect, because your £12,570 personal allowance is already used up by your wage. That means everything above the £1,000 trading allowance is taxed at whatever rate your job puts you in, from the first pound, normally 20%. Setting aside about a fifth of it as you go saves an unpleasant January.