Selling on Vinted, eBay, Etsy or Amazon? Your Self Assessment for 2025/26 is due by 31 January 2027. Expenses online sellers typically consider claiming (gov.uk lists the categories): stock bought to resell; postage and packaging; platform and payment fees; storage costs; software subscriptions used for the business; advertising. If your total trading income is £1,000 or under, the trading allowance may mean no return is needed for it — and you cannot claim expenses as well as the allowance. Selling platforms now report seller data to HMRC — see our guide. Check each category on gov.uk/expenses-if-youre-self-employed.
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Not tax advice. Not affiliated with, or endorsed by, HMRC.