You've built a following, your videos convert, and TikTok Shop orders are landing daily. Now you're wondering what HMRC expects from you, and whether the data TikTok shares about your sales is going to cause a problem.
Here's the reassuring part. Selling on TikTok Shop doesn't create some special new tax. You pay tax the same way any UK trader does, on your profits. What has changed is HMRC's visibility, because platforms now hand over seller data automatically.
This guide walks you through Income Tax, VAT and the digital platform reporting rules for the 2025/26 tax year. It's written for UK-based sellers running a TikTok Shop, whether it's a side hustle or your main income.
Do you pay tax on TikTok Shop sales?
It depends on whether you're trading. HMRC draws a line between selling off your own personal possessions and running a business.
If you sell a few items you already owned, like clearing out a wardrobe, you're unlikely to owe tax on that. But if you buy or make goods to sell at a profit, you're trading, and you'll pay tax on the profits. Most TikTok Shop sellers fall firmly into the trading camp, because they're sourcing stock or creating products specifically to sell.
Once you're trading, there's a tax-free buffer called the trading allowance. You can earn up to £1,000 of gross trading income in a tax year without paying Income Tax on it, and often without needing to tell HMRC at all (source: gov.uk trading allowance guidance).
The key word is gross. The £1,000 is measured against your total sales before you take off any costs, not your profit. If your TikTok Shop turns over more than £1,000 in a tax year, the allowance won't keep you out of the system.
What are the digital platform reporting rules?
Since 1 January 2024, online platforms like TikTok Shop have been legally required to collect information about their sellers and report it to HMRC. The first reports covered the 2024 calendar year. This is part of an international framework, not a UK-only crackdown.
Platforms collect your full name, the address where you normally live, your date of birth and your tax identification number, which for a UK individual is your National Insurance number. They then report your sales income to HMRC, and they send you a copy of the same figures (source: gov.uk: selling goods or services on a digital platform).
The reporting runs on a calendar-year basis. Information gathered from 1 January to 31 December is reported to HMRC by 31 January the following year.
Is there a reporting threshold?
Yes. A platform doesn't have to report you if, in a calendar year, you make fewer than 30 sales of goods or you receive less than 2,000 euros, which is roughly £1,700 (source: gov.uk: selling goods or services on a digital platform).
That reporting threshold is easy to confuse with the tax threshold, so be careful. They're not the same thing.
- The reporting threshold (fewer than 30 sales or under about £1,700) decides whether the platform sends your data to HMRC.
- The tax threshold (the £1,000 trading allowance) decides whether you need to declare income.
Being reported to HMRC does not automatically mean you owe tax. Equally, staying under the reporting threshold doesn't mean you're off the hook, because your own duty to declare income kicks in at the lower £1,000 figure.
When do you need to register for Self Assessment?
If your gross trading income for the tax year (6 April to 5 April) is more than £1,000, you need to tell HMRC and register for Self Assessment (source: gov.uk: check if you need to tell HMRC about your income from online platforms).
The deadline to register is 5 October following the end of the tax year. So if you crossed the line during 2025/26 (the year that ended on 5 April 2026), you'd need to register by 5 October 2026 (source: gov.uk: Self Assessment deadlines).
After that, the dates to remember are:
- 31 October: paper return filing deadline.
- 31 January: online return filing deadline and the date your tax is due.
Our Self Assessment service handles registration and filing for you if you'd rather not wrestle with HMRC's portal.
How much Income Tax and National Insurance will you pay?
You're taxed on your profit, which is your sales income minus your allowable business costs. For a TikTok Shop, those costs typically include stock, packaging, postage, platform and payment fees, advertising spend and a share of things like your phone and home-office use.
For 2025/26, the headline figures for England, Wales and Northern Ireland are:
| What you pay | Rate / threshold | Tax year |
|---|---|---|
| Personal Allowance (tax-free income) | £12,570 | 2025/26 |
| Income Tax basic rate | 20% on income £12,571 to £50,270 | 2025/26 |
| Income Tax higher rate | 40% on income £50,271 to £125,140 | 2025/26 |
| Class 4 NIC main rate | 6% on profits £12,570 to £50,270 | 2025/26 |
| Class 4 NIC additional rate | 2% on profits above £50,270 | 2025/26 |
Sources: Income Tax rates, self-employed National Insurance rates.
Scotland sets its own Income Tax rates and bands, so if you're a Scottish taxpayer the Income Tax figures differ. National Insurance is the same across the UK.
A quick way to estimate the damage is our self-employed tax calculator, which factors in both Income Tax and Class 4 NIC.
Do TikTok Shop sellers need to register for VAT?
VAT only becomes mandatory once your VAT-taxable turnover crosses the registration threshold. For the current period that threshold is £90,000 in any rolling 12-month period (source: gov.uk VAT registration thresholds).
Note that this is turnover, not profit, and it's a rolling 12 months, not your accounting year. A fast-growing TikTok Shop can hit £90,000 of sales surprisingly quickly, so it pays to track your trailing 12-month total every month rather than waiting for the year-end.
Once registered, the standard VAT rate is 20%, with reduced (5%) and zero (0%) rates for certain goods (source: gov.uk VAT rates). You can register voluntarily before you hit the threshold if reclaiming VAT on your stock and costs would leave you better off, but that's a judgement call worth talking through.
Illustrative example: working out a TikTok Shop tax bill
Let's walk through a simple, made-up scenario to show how the numbers fit together.
Illustrative example. Maya runs a TikTok Shop selling handmade candles as a sole trader. It's her only source of income. In 2025/26 her figures are:
- Sales (gross income): £38,000
- Cost of stock, materials and packaging: £14,000
- Postage: £3,000
- TikTok and payment fees: £2,500
- Advertising: £1,500
- Other allowable costs (phone, software, home office): £1,000
Her total allowable costs are £14,000 + £3,000 + £2,500 + £1,500 + £1,000 = £22,000.
Her taxable profit is £38,000 - £22,000 = £16,000.
Income Tax. The first £12,570 is covered by her Personal Allowance, so £16,000 - £12,570 = £3,430 is taxable at the 20% basic rate. That's £3,430 x 20% = £686.
Class 4 National Insurance. This is charged on profits above £12,570 at 6%. So £16,000 - £12,570 = £3,430, and £3,430 x 6% = £205.80.
Total. Maya's bill is £686 + £205.80 = £891.80 for the year.
Because her sales comfortably exceed £1,000, the trading allowance doesn't help her, and because they're well under £90,000 she has no VAT obligation. Her turnover also sits above the platform reporting threshold, so TikTok will have reported her sales to HMRC, which is exactly why getting the return right matters.
This is a simplified illustration. Your own position depends on your other income, your exact costs and whether you're a Scottish taxpayer.
What records should you keep?
Even if you only use the trading allowance, HMRC expects you to keep a record of your income. Once you're filing a return, you'll need both income and expense records to back up your figures.
In practice, the cleanest approach is to keep:
- A running total of TikTok Shop sales, ideally reconciled to your payouts.
- Receipts and invoices for stock, packaging, postage, fees and advertising.
- A note of any personal items you sold (so you can show they weren't trading income).
Sound bookkeeping also makes VAT monitoring painless, because your rolling turnover is always to hand. If that side of things feels like a drain on your time, our bookkeeping service keeps it tidy month to month.
How Zmartly can help
We work with ecommerce sellers, sole traders and TikTok creators every day, so the platform reporting rules and the TikTok Shop payout reports hold no surprises for us.
Want clarity on what you owe and a Self Assessment return filed properly and on time? Book a free 20-minute call with a Zmartly accountant at zmartly.co.uk/contact.
Frequently asked questions
Does TikTok report my sales to HMRC?
Yes, if you cross the reporting threshold. A platform must report you to HMRC unless, in a calendar year, you make fewer than 30 sales of goods or receive less than 2,000 euros (about £1,700). TikTok also sends you a copy of the figures it reports.
Do I owe tax just because TikTok reported me?
No. Being reported to HMRC does not automatically mean you owe tax. Reporting is about transparency. You owe tax only if you have a taxable profit, and you only need to declare income once your gross trading income for the tax year is more than the £1,000 trading allowance.
What is the trading allowance?
It's a tax-free allowance of up to £1,000 a year for trading income, measured on your gross income before costs. If your TikTok Shop income for the tax year is £1,000 or less, you may not need to tell HMRC, though you must keep a record of it. Above £1,000 you need to register for Self Assessment.
When do I have to register for Self Assessment?
If your gross trading income for the tax year is over £1,000, register for Self Assessment by 5 October following the end of that tax year. Your return and any tax due are then filed and paid by the following 31 January.
Do I need to register for VAT for my TikTok Shop?
Only once your VAT-taxable turnover exceeds £90,000 in any rolling 12-month period. That's based on turnover, not profit. You can register voluntarily before then if reclaiming VAT on your costs would help, but it isn't required below the threshold.
Is selling my old clothes on TikTok Shop taxable?
Selling genuine personal possessions you already owned is unlikely to be taxable. The tax point is trading, which is buying or making goods to sell at a profit. If you're sourcing or creating stock to sell, that's trading and the profits are taxable.
