A message asking you to "confirm your tax details" arrives, or a letter from HMRC refers to your online sales. Both stem from HMRC digital platform reporting. The prospect can be unsettling, yet for most sellers it alters nothing about what they owe. This guide sets out who is reported, what is shared and how to respond.
What Is HMRC Digital Platform Reporting?
HMRC digital platform reporting is a regime under which online platforms gather verified details about their sellers and send them, together with income figures, to HMRC once a year. A digital platform is any software, including apps and websites, that lets users offer goods or services to others.
When Did HMRC Digital Platform Reporting Start?
The UK has implemented the OECD model reporting rules for digital platforms, designed to give tax authorities consistent data on the sharing and gig economy. The UK regime began on 1 January 2024, and the first reports, covering 2024, were due by 31 January 2025. The Low Incomes Tax Reform Group (LITRG) notes that, for 2024, the rules applied to people who joined a platform during that year. From 2025, they apply to all platform users.
What Changed, and What Did Not
The change is one of visibility: under the digital platform reporting rules, HMRC now receives seller data automatically rather than on request. The tax law itself is unchanged. Selling your own unwanted belongings remains outside trading, and trading income is taxed exactly as before. The responsibility to declare income still rests with you, not the platform.
Which Online Platforms and Sellers Are Covered?
You are a seller if you register on a platform to sell goods or services, even when you do not supply them yourself. The rules apply to individuals, such as sole traders, and to entities, such as companies.
Goods Sellers (Vinted, eBay, Etsy, Depop)
Sellers on marketplaces such as Vinted, eBay, Etsy, Depop or Amazon Marketplace are covered, but are reported only once they reach the thresholds set out below.
Services, Lettings and Transport (Uber, Deliveroo, Airbnb)
This category includes delivery and driving, freelancing, holiday lets and transport rental, across platforms such as Uber, Deliveroo, TaskRabbit, Airbnb and Amazon Flex. Because the casual-seller exemption applies only to goods, these sellers are reported from the first pound earned.
Overseas Platforms and UK-Resident Sellers
HMRC states that it will pass information to another country's tax authority where you live in a country that applies these rules. Platforms based abroad may likewise fall under comparable rules in their own jurisdiction, so a UK resident using an overseas platform can still come to HMRC's attention through information exchange.
HMRC Digital Platform Reporting Thresholds
The 30 Sales or €2,000 (About £1700) Reporting Threshold for Goods
According to GOV.UK, your details are not reported if you make fewer than 30 sales of goods in a calendar year and receive less than €2,000 (about £1,700) for them. Reaching either figure obliges the platform to report you. The test governs reporting only; it says nothing about whether tax is due.
Why Services and Property Lets Are Reported Whatever the Amount
The casual-seller exemption applies to goods alone. It excludes personal services and transport rental, and lettings are reported too. A single Airbnb booking or a week of Uber driving can therefore feature in a report. Several online guides wrongly apply the 30 sales / €2,000 test to every seller, so confirm which rule governs your activity.
Is the Threshold per Platform or Combined?
LITRG understands that the rules operate platform by platform, with no aggregation. If you sell 20 items on Vinted and 20 on eBay, neither platform need report you under the sales test alone. Each tests you against its own figures, but your tax position takes all your income into account.
What you do on the platform | Reported to HMRC? | Notes |
|---|---|---|
Sell goods: fewer than 30 sales and under €2,000 | No | Casual-seller exemption |
Sell goods: 30 or more sales, or €2,000 or more | Yes | Tested per platform, per calendar year |
Provide services (driving, delivery, freelancing) | Yes | Any amount |
Let property (for example, through Airbnb) | Yes | Any amount |
Rent out transport | Yes | Any amount |
What Information Platforms Send to HMRC
These are the details that HMRC digital platform reporting passes on each January.
Personal Details and National Insurance Number
For individuals, platforms request your full name, home address, date of birth and tax identification number, which is your National Insurance number if you live in the UK. If you let property, they also need the address of each property. Companies supply their legal name, address and company registration number, while UK partnerships provide their Unique Taxpayer Reference.
Platforms report the income you received through them, divided by quarter of the calendar year and net of any fees, commission or taxes they deducted. Review these deductions, as some may be offset against tax due.
Your Copy of the Report
Platforms must give you a copy of what they reported. HMRC says its purpose is to help you track your earnings; it does not replace your own business records or tax calculations. Keep it with your tax papers.
Why Your Platform Is Asking for Your National Insurance Number
Platforms must collect and verify seller details to comply with the reporting rules for digital platforms, so the request is routine rather than a sign that you have been flagged or investigated. If you ignore repeated requests, many platforms will restrict payouts or account access until you respond, although terms vary.
Scam emails imitate these requests. Never enter your National Insurance number via a link in an email or text. Instead, open the platform's app or website directly and locate the request in your account settings. If a message purports to come from HMRC, consult GOV.UK's guidance on checking whether a letter is genuine.
Reported Does Not Mean Taxed
HMRC digital platform reporting concerns information only. Tax arises only if you are trading or realise a taxable capital gain.
Selling Your Own Belongings
Selling personal items, such as the contents of a loft, garage or wardrobe, is unlikely to be taxable, however many sales you make. GOV.UK states that people who buy or make goods to sell at a profit are likely to be trading.
Trading and the £1,000 Trading Allowance
If you are trading and your gross income (before expenses) is £1,000 or less in a tax year, the trading allowance means you need not tell HMRC. Above £1,000, you must register for Self Assessment, and you may deduct either the £1,000 allowance or your actual expenses, but not both.
Property Lettings
Offering short-term accommodation or letting property through a digital platform is subject to platform reporting rules. If you earn income from providing services or letting property online, you may need to register for Self Assessment and pay tax if your total gross income across trading and services exceeds £1,000 before expenses in a tax year.
Capital Gains Tax
Having your details reported by an online platform does not automatically mean you owe tax. To owe tax on goods or services sold online, you must either be trading or making a taxable capital gain.
Your situation | Tax position | What to do |
|---|---|---|
Selling your own belongings, however many sales | Not taxable | Give the platform your NI number and keep its report |
Trading or services; gross income of £1,000 or less | Covered by the trading allowance | Keep simple records |
Trading or services; gross income above £1,000 | Taxable | Register for Self Assessment and file a return |
Letting property above £1,000 (outside Rent a Room) | Taxable | Register and report the lettings income |
One personal item sold for more than £6,000 | Possible Capital Gains Tax | Consult GOV.UK guidance |
Calendar Year Reports vs the Tax Year
Platforms report on the period 1 January to 31 December, whereas your tax year runs from 6 April to 5 April. HMRC does not reconcile the two on your behalf. When completing a return, you must calculate your income for the tax year from your own records.
Sale date | Appears in platform report for | Falls in tax year |
|---|---|---|
15 December 2026 | 2026 | 2026/27 |
20 January 2027 | 2027 | 2026/27 |
10 April 2027 | 2027 | 2027/28 |
The platform's quarterly breakdown helps you align the figures, but verify it against the sale dates in your own records.
What HMRC Does With the Data
a. Verifying Tax Compliance
Platforms report your seller details and annual earnings directly to HMRC each January. HMRC uses this information to ensure that sellers who are trading or providing services online comply with tax obligations.
b. If HMRC Contacts You
If HMRC contacts you about your online selling, check your records to establish whether your sales were casual disposals of personal belongings or a commercial trade. If you only sold personal possessions, you do not owe tax. If you were trading and earned more than £1,000 gross in a tax year, you must register for Self Assessment and report the income.
What to Do If You Should Have Registered
Registering for Self Assessment
If you were trading or offering services online and your gross income exceeded £1,000 before expenses in a tax year, you must register for Self Assessment and complete a tax return to report your earnings to HMRC.
Illustrative Example
Dan has a full-time job. In 2025/26 he bought used phones, refurbished them and resold them on eBay without registering.
Item | Figure |
|---|---|
Gross eBay sales | £6,500 |
Stock, postage and fees | £4,900 |
Profit using actual expenses | £1,600 |
Profit using £1,000 allowance | £5,500 |
Better option | Actual expenses |
Tax at 20% (basic-rate taxpayer) | £320 |
At this level of profit, Class 4 National Insurance is not due
The figures exclude any interest or penalties and are for illustration only.
HMRC Digital Platform Reporting and Making Tax Digital
The two are separate regimes. Digital platform reporting involves platforms informing HMRC of your income, whereas Making Tax Digital (MTD) for Income Tax obliges you to keep digital records and submit quarterly updates through compatible software.
MTD began on 6 April 2026 for sole traders and landlords with qualifying income above £50,000. The threshold falls to £30,000 from April 2027 and to £20,000 from April 2028 (the 2028 stage remains subject to legislation). Qualifying income means gross self-employment and property income before expenses, not profit. Quarterly updates are due by 7 August, 7 November, 7 February and 7 May, and the final declaration by 31 January.
If your trading income exceeds those thresholds, your platform report offers a useful cross-check against your digital records.
Practical Record-Keeping for Platform Sellers
GOV.UK requires self-employed people to keep accurate records of all sales and income and all business expenses. For platform sellers, that means retaining:
Records of each sale, showing the date and amount received
Bank statements, sales invoices and other proof of your takings
Receipts for goods, stock and materials
Receipts or statements for platform fees and postage costs
Your annual platform report, as a cross-check rather than a substitute for your own records
It helps to keep personal and trading sales apart, ideally in separate tabs or software categories, and to record each platform separately so that you can total them for the tax year.
Keep your records for at least five years after the 31 January submission deadline of the relevant tax year. For 2025/26, that means until at least 31 January 2032. If records are lost and cannot be replaced, tell HMRC when you file whether you are using estimated or provisional figures.
Common Mistakes Sellers Make
Mistake | Better approach |
|---|---|
Assuming that 30 sales means you owe tax | Treat it solely as a reporting trigger, then assess whether you are trading |
Ignoring a platform's request for NI details | Supply them through the official app or website |
Ignoring contact or inquiries from HMRC | Confirm it is genuine and reply promptly |
Applying the goods threshold to services or lettings | Remember that these are reported from the first pound |
Confusing calendar-year reports with tax-year figures | Rebuild your income by sale date |
What to Do Next
Conclusion
HMRC digital platform reporting changes what HMRC can see, not what you owe. Being reported means only that a platform has shared your income figures; tax arises only if you are trading, letting property or making a taxable gain. Work out which category your activity falls into, keep accurate records, and respond promptly if HMRC makes contact. Doing so lets you approach each January's reports with confidence rather than concern.
