Do I Have to Pay Tax on PayPal, Vinted, Etsy and eBay Income in the UK?

If you sell online and you have seen the headlines about HMRC now being able to see your sales, you may be wondering whether you owe tax, whether you need to register for anything, and what happens if you have not.

The short version is this. There is no new tax on online selling. The rules about when you owe tax have not changed. What has changed is that HMRC now receives data directly from the platforms you sell on, which means anything you should have declared is now much easier for them to spot.

This post explains exactly when online selling income is taxable, when it is not, what the platform reporting rules actually mean for you, and what to do if you have been selling for a while without declaring anything.

The Most Important Distinction: Selling vs Trading

Whether you owe tax on online income comes down to one question. Are you selling personal possessions you no longer want, or are you trading?

Selling your own personal items is not taxable. If you clear out your wardrobe and sell old clothes on Vinted, sell furniture you no longer need on eBay, or pass on books and household items you bought for personal use, that is not trading and there is no income tax to pay. You are selling things you already owned, usually for less than you paid for them, and HMRC does not treat this as a business.

Trading is different. If you buy things specifically to resell them, make items to sell, or sell regularly with the intention of making a profit, that is trading. A person who buys clothes at car boot sales to flip on Vinted is trading. Someone who makes candles to sell on Etsy is trading. Someone who buys job lots of electronics to resell on eBay is trading. The income from trading is potentially taxable.

The line between the two is sometimes blurry, and HMRC uses a set of tests called the badges of trade to decide. We cover those in detail in a separate post, but the key signals are whether you are buying or making things to sell, how often you sell, and whether your intention is to make a profit.

The £1,000 Trading Allowance

If you are trading, the next question is how much? This is where the £1,000 trading allowance comes in.

Every person in the UK can earn up to £1,000 of gross trading income in a tax year without paying tax on it or needing to tell HMRC. This is the trading allowance, and it exists specifically to keep small-scale casual trading out of the tax system.

If your total trading income for the tax year is £1,000 or less, you do not need to register for Self Assessment, you do not need to file a tax return, and you do not owe any tax on it. If your gross trading income is more than £1,000, you need to register for Self Assessment and declare the income, although you may still owe little or no tax once your expenses or the trading allowance itself are taken into account.

The word gross matters here. The £1,000 threshold is measured on your total sales before deducting any costs, fees or expenses. We come back to this point because it is the single most common way people accidentally underestimate their position.

What the Platform Reporting Rules Actually Mean

Here is what has genuinely changed, and why you may have seen the headlines.

From January 2024, online platforms including Vinted, eBay, Etsy, Depop, Airbnb and others are legally required to collect data on their sellers and report it to HMRC once a year. The first reports covered the 2024 calendar year and were submitted to HMRC in January 2025. The same cycle repeats every year.

A platform must report your data to HMRC if you cross either of two thresholds in a calendar year. The first is completing 30 or more sales. The second is earning roughly £1,700 or more in gross sales, a figure that comes from the euro-denominated international rules the UK adopted. If you cross either threshold, the platform reports your name, address, date of birth, National Insurance number or tax reference, and your transaction details to HMRC.

This is the crucial point that confuses people. The reporting threshold and the tax threshold are completely different things.

The reporting threshold of 30 sales or £1,700 is simply the point at which the platform shares your data with HMRC. It does not mean you owe tax at that level. The tax threshold is the £1,000 trading allowance, which is lower. So you can have your data reported to HMRC without owing any tax, for example if you are selling personal items, and you can owe tax without your data being reported, for example if you make £1,200 of trading profit across fewer than 30 high-value sales.

The reporting rules do not change what you owe. They simply mean HMRC now has the information to check whether what you declared matches what you actually earned.

The Gross Income Trap

This catches people out more than anything else, so it is worth being clear about it.

Your gross trading income is your total sales before any deductions. It is not the amount that lands in your bank account. Platforms deduct selling fees, payment processing fees, shipping costs and sometimes VAT before paying you, and the amount you receive is the net figure, not the gross.

A worked example shows why this matters. You sell handmade items on Etsy and receive £946 into your bank account across the year. The platform charged 14% in various fees, which were deducted before you were paid. Your gross income is not £946. It is £1,100, because the £154 of fees came out of your gross sales before the £946 reached you.

In this example, your gross trading income of £1,100 is above the £1,000 trading allowance, even though only £946 reached your account. You would need to register for Self Assessment and declare the income, claiming the £154 of fees as an expense or using the trading allowance instead.

If you track only what hits your bank account, you can genuinely believe you are below the £1,000 threshold when your gross income is above it. Any app or bank-feed tool that reads only your deposits will make the same mistake. Always work from your gross sales figure, which the platform can provide, not the net amount you received.

What to Do If You Are Trading Above £1,000

If your gross trading income for the tax year is more than £1,000, the steps are straightforward.

Register for Self Assessment by 5 October following the end of the tax year in which you crossed the threshold. So if you crossed £1,000 during the 2026/27 tax year, you register by 5 October 2027.

File your Self Assessment return by the following 31 January, declaring your trading income.

Choose whether to claim the £1,000 trading allowance or your actual business expenses, whichever gives you the lower taxable profit. If your costs were below £1,000, the trading allowance is usually better. If they were above £1,000, claim the actual expenses.

Pay any tax due by 31 January.

In many cases the actual tax owed is small, particularly for people whose trading profit sits just above £1,000. But the obligation to register and declare is triggered by the gross income crossing £1,000, regardless of how much tax ends up being due.

What to Do If You Have Been Selling Without Declaring

This is the situation many people are quietly worried about, particularly now that HMRC has the data.

If you have been trading above £1,000 and have not declared it, the situation is recoverable and the sooner you act the better. HMRC's failure to notify penalty for a genuine, non-deliberate oversight can be as low as zero percent if you come forward proactively before they contact you, register, file and pay what you owe. We cover this in detail in our post on what happens if you have not registered as self-employed.

The worst approach is to ignore it. HMRC now sends what it calls nudge letters to people whose platform data suggests undeclared income. These letters reference the data the platform reported and invite you to check your tax position. Ignoring a nudge letter is the fastest way to turn a manageable situation into an investigation. If you receive one, respond promptly, register if you need to, and put your position right. You will find our post on The Rela Cost of Filling Your Self Assessment late useful.

When You Genuinely Have Nothing to Worry About

It is worth ending on the reassuring point that most casual sellers have nothing to worry about.

If you are selling your own unwanted personal possessions, you owe no tax regardless of how much you sell, even if your data is reported to HMRC because you crossed the 30-sale threshold. Clearing out your house is not trading.

If you are trading but your gross income is below £1,000, you owe no tax and do not need to register, again regardless of whether your data is reported.

The people who need to act are those whose gross trading income exceeds £1,000. For everyone else, the reporting rules are simply a background administrative change that does not affect what you owe.

The System That Keeps You on the Right Side of the Line

If your online selling is starting to look like trading and is approaching or crossing £1,000, the most important thing is to track your gross income accurately, separate your trading sales from any personal item sales, and keep a record of your fees and costs.

The UK Sole Trader Tax Template tracks your gross income, your platform fees and your expenses in one place, and shows you whether you are above or below the £1,000 threshold and what your tax position looks like in real time. It is built to handle exactly the gross income trap described above, so you always know your true position rather than just what hit your bank account.

Get the UK Sole Trader Tax Template, £9.99 →

If you have received a nudge letter from HMRC or are not sure whether your selling counts as trading, a Done With You session will give you a clear answer based on your specific situation and a plan for putting things right if needed.