In the UK, for people selling items through second-hand platforms such as Vinted, eBay, and Depop, tax liability depends on the nature of the items sold and the income and expenditure situation, not on the platform itself. Under current rules, sellers whose purpose is buying to resell or selling self-made products and whose income exceeds £1,000 in a tax year must file a self-assessment tax return; ordinary users who are merely disposing of personal used items generally do not need to pay tax.

The key to this distinction lies in the purpose of the transaction: buying and selling to earn a margin or producing goods for sale constitutes taxable trading activity, and the monetary threshold is calculated on gross trading income, not net profit. Sellers entering this kind of side business for the first time and meeting the filing conditions must register for self-assessment by 5 October, or they may face penalties. The £1,000 threshold also applies to second-job income outside one's main job, overseas income, and other types of side income.

Another change relevant to platform sellers is the reduction in the capital gains tax allowance: the tax-free amount has fallen to £3,000. This means more people trading stocks, cryptocurrencies, or other assets outside an ISA account also need to be included in the filing scope, not just second-hand clothing sellers.

For the platform ecosystem, another regulatory change is information transparency: digital platforms are now required to report seller-related details to HM Revenue & Customs (HMRC). This means that even if sellers do not proactively file, their platform transaction records may still come into the tax authority's view. For the used clothing and second-hand resale industry, rising compliance costs and the clearer boundary between "personal disposal" and "business resale" are changing second-hand sellers' business expectations—the past side-business model of relying on scattered platform sales without reaching the tax threshold will more frequently face filing obligations.

Source: Do you need to pay tax on items sold on Vinted? What you need to know · Originally published on 2026-09-28