Making Tax Digital · Sole traders
Selling on eBay, Vinted and Depop: when second-hand sales become trading income
ONLY£15A MONTHClearing your wardrobe and buying goods to resell for profit are different activities.
Clearing your wardrobe and buying goods to resell for profit are different activities. A platform reporting your transactions to HMRC does not automatically mean that all the proceeds are taxable. Start with what you actually do, then apply the reporting and tax rules separately.
Distinguish personal disposals from a trade
Selling unwanted personal possessions will not usually amount to trading. Regularly buying items with the intention of selling them at a profit is a different pattern. Consider the facts across the activity rather than using the number of listings as a universal tax test.
HMRC's digital-platform guidance explains the distinction. Some valuable personal disposals can raise Capital Gains Tax questions even where there is no trade, so “not trading” does not mean every possible tax rule disappears.
Understand what the platform report means
Platform reporting thresholds are not the trading allowance. Platform data may use a calendar year and show amounts after certain fees. Your tax records need the correct tax period and an explanation of gross proceeds, refunds and costs.
If you are trading, the £1,000 trading allowance may be relevant, subject to its conditions. It is generally an alternative to claiming actual expenses for the relevant trade income, rather than an extra deduction added on top of those costs.
Worked comparison: two sellers
Leah sells her own used coats for £600 after originally paying more for them. Max buys second-hand coats for £600 specifically to resell them and receives £1,600 before fees.
The similar items do not create the same activity. Max needs records of trading receipts, stock purchases and fees, and should assess his reporting obligations. Leah should not assume that a platform information report turns her ordinary wardrobe clear-out into a business.
Reconcile receipts, not just bank payouts
A bank deposit is not always the original sale. A platform, card processor or agent may deduct fees before sending you the balance. Keep the statement showing the gross amount, deductions, refunds and final payout, then explain the difference in your records.
Cash needs the same attention. Record customer cash when received under the cash basis, even if some of it is spent before the rest reaches the bank. Banking cash already recorded as a sale is a transfer between your cash and bank records, not another sale.
HMRC's record-keeping guidance covers income and business expenses. The useful practical test is whether another person could follow a payment from the original sale to the amount received without counting it twice.
Do not use bank feeds as a reason to ignore payment accounts, credit cards, cash or payments made personally for the business. List every place where business money passes, choose the source for each type of transaction and review transfers between those sources. This turns reconciliation into a repeatable check rather than a search through several unrelated statements.
Start with the business purpose
An expense category describes a cost; it does not decide whether the cost qualifies for relief. The starting point is whether the spending was for the trade. Where an identifiable part was private, keep that part out of the claim. A personal withdrawal is not an expense simply because it leaves the business bank account.
HMRC's self-employed expenses guide explains the distinction between running costs, capital expenditure and private use. For example, a supplier may sell both equipment and household products. The shop's name is useful evidence, but the invoice tells you what you bought.
Record the full transaction and the business calculation clearly. If a £120 bill has £30 of identifiable private spending, a £90 business claim is easier to explain when both amounts and the reason for the split are retained. Do not delete the private part merely to force the bookkeeping total to resemble the tax deduction.
Nor is a deduction a reimbursement. Spending £100 to save a fraction of that amount in tax still leaves you with a real cost. Buy what the business needs, keep appropriate evidence and claim the relief available under the correct rules.
Where this fits into Making Tax Digital
For 2026/27, the first mandatory phase generally covers individuals whose combined qualifying self-employment and property income was more than £50,000 in 2024/25, subject to exemptions. Qualifying income normally means income before expenses. It is a different figure from taxable profit. Check the qualifying-income rules.
Once within MTD, keep the required digital records and send quarterly summaries for each relevant business. The summaries are cumulative from the start of the reporting year. They do not contain your entire personal tax position, and sending one does not itself create a quarterly tax-payment demand.
HMRC does not require accounting or tax adjustments before each quarterly update. Those adjustments and the other information needed for the annual return still have to be completed at the appropriate stage. Keep a review list so a matter deferred until year end is not forgotten. Read HMRC's quarterly-update guidance.
Software can organise the information, but the business facts remain essential. Review the figures you approve rather than assuming that a successful import has also settled every tax question.
Keep an explanation with the records
Separate personal disposals from resale stock, retain purchase evidence and download platform statements. If a tax return is required, reconcile the platform's reporting period and deductions to your own figures. Do not copy a calendar-year payout total into a tax-year sales box without checking it.
Take the next step
Avona.app offers a self-service route from £15/month. Bring your records together, review the figures and choose a workflow that fits your business. For professional help, discuss the scope and total price of Avona Concierge, managed by chartered accountants, before choosing a service.