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Vinted HMRC Form & NI Number Request: What to Do

Last checked against Vinted's help centre and GOV.UK: 26 October 2026 · General information, not tax advice

The short answer: if Vinted asks you to complete an HMRC form, it's because you've made 30 or more sales or over €2,000 (about £1,700) on Vinted this calendar year. Check the details, add your National Insurance number and submit it. Vinted says you have until the end of the calendar year you met the requirements, so for 2026 sales that's by 31 December 2026. Filling it in doesn't mean you owe tax.

Check your numbers – free

Why Vinted is asking for your National Insurance number

Since 1 January 2024, UK rules require online platforms to collect some details about sellers and report them to HMRC. GOV.UK says platforms will ask individual sellers for their full name, address, date of birth and tax identification number, which is your National Insurance number if you live in the UK (GOV.UK: Selling goods or services on a digital platform).

Vinted only has to report you if, within a calendar year (1 January to 31 December), you meet at least one of these:

Vinted says it will contact you by the end of the year if you reach either one, and there's no need to contact it yourself. If you don't hear from Vinted, you don't need to do anything.

The deadline: end of the calendar year

Vinted's help page What is HMRC reporting? answers this directly: "You have until the end of the calendar year in which you met the requirements." So if you passed 30 sales or about £1,700 in 2026, submit the form by 31 December 2026.

Vinted also says that if you need to change your tax identification number, you can update and resubmit the form only until the submission deadline (Vinted: How to complete your HMRC form). So don't leave it until the last day of December.

Vinted's help pages don't say what happens if you miss the deadline. Other platforms do spell it out: eBay says not providing the information can lead to payout holds or selling blocks, and Depop says it may pause payouts. Treat the date as real.

How to fill in the form

Vinted says it pre-fills the form with information from your account, including the details used for your Vinted Balance and withdrawals, and that you don't need to calculate or count anything yourself. To complete it (Vinted's steps):

  1. Confirm the details Vinted has added from your account.
  2. Add your National Insurance (NI) number if you have one. Pro sellers add business details instead.
  3. Submit the form.

If you don't have an NI number, there's an option on the form to confirm this. Vinted says that to submit the form it only needs your NI number or confirmation that you don't have one, and that the NI number is only shared with HMRC.

Where to find your National Insurance number

It looks like two letters, six numbers and a final letter, for example QQ123456B. GOV.UK says you can usually find it on (GOV.UK: find your National Insurance number):

GOV.UK says HMRC cannot give you your National Insurance number over the phone or on webchat.

Does this mean I owe tax?

No, not automatically. Vinted says that completing a seller report "doesn't mean there's an obligation to pay taxes on your Vinted sales" (Vinted: HMRC requirements). GOV.UK says the same: a platform reporting your details to HMRC "does not automatically mean you owe tax".

What matters is what you're selling:

What happens after you submit

Vinted says it sends the information of everyone who submitted a form to HMRC in January of the following year, and you get a copy of exactly what was sent. GOV.UK says platforms report by 31 January, so 2026 information goes to HMRC by 31 January 2027.

The report shows your sales for the calendar year. If you do need to tell HMRC about income, GOV.UK says you'll need to work it out for the tax year (6 April to 5 April). If HMRC later writes to you about your sales, see our guide to what to do if you get an HMRC letter.

Selling on eBay or Depop too?

Each platform applies the rule to sales on that platform, so you could get a form from one and not another. eBay's figure for 2026 is £1,707 after fees or 30 sales: see our eBay threshold guide. Depop uses €2,000 (about £1,700) or more than 30 items.

Is the request genuine?

The real form comes from Vinted itself. We'd suggest opening it from inside the Vinted app or website rather than from a link in a text or email. If a message claiming to be from HMRC asks for personal or bank details, check GOV.UK's guidance on reporting HMRC phishing emails and texts before you reply.

Quick answers

Why is Vinted asking for my National Insurance number?

UK rules since 1 January 2024 require platforms to report sellers to HMRC if they make 30 or more sales, or over €2,000 (about £1,700), in a calendar year. For individual sellers living in the UK, the tax identification number platforms must collect is the National Insurance number.

When is the Vinted HMRC form deadline?

Vinted says you have until the end of the calendar year in which you met the requirements. For 2026 sales, that means by 31 December 2026. Vinted sends the reports to HMRC in January of the following year.

Does filling in the Vinted HMRC form mean I owe tax?

No, not automatically. Vinted and GOV.UK both say a report doesn't mean you owe tax. Selling your own unwanted things for less than you paid is generally not taxed. Tax is more likely if you buy or make things to sell for a profit and your gross trading income is over £1,000 in a tax year.

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Sources

More guides for UK online sellers

This is general information, not tax advice. Whether you owe tax depends on your circumstances. Check GOV.UK or speak to an accountant about your own situation. SideLedger is not affiliated with HMRC, Vinted, eBay or Depop.