Selling your old stuff vs trading, the trading allowance, eBay fees, the new platform reporting rules, VAT and MTD explained for UK eBay sellers.
eBay's tax position turns on one question above all others: are you selling your own stuff, or are you trading? The answer changes everything. Clearing out a wardrobe, selling an inherited piece of furniture, or offloading a games console you no longer use is the disposal of personal possessions, and it is not taxable income, full stop, however much you raise. Buying job lots to resell, flipping trainers, or making items to sell on is trading, and that income is taxable once it passes the trading allowance. Most of the anxiety eBay sellers feel about tax dissolves once they place themselves firmly on one side of that line.
The confusion has intensified because, since January 2024, eBay has been reporting seller data to HMRC. A great many ordinary people who were simply decluttering received messages about this and assumed they suddenly owed tax. They almost certainly do not. The reporting rule is about visibility, not liability: it gives HMRC the data to spot undeclared traders, but it does not turn a loft clear-out into a taxable trade.
HMRC uses the badges of trade to decide whether you are trading. The most important indicators for eBay are: did you acquire the goods with the intention of selling them at a profit? Do you sell frequently and systematically? Do you buy stock, make items, or modify things to sell? If the honest answer is that you are selling possessions you originally bought to use and keep, you are not trading. If you are sourcing goods to flip, you are.
Selling personal possessions has its own, separate rule: if a single item (or set) sells for more than GBP 6,000, any gain may be subject to Capital Gains Tax, though most everyday items are well below this and many are exempt as wasting assets. For the typical declutterer, neither Income Tax nor Capital Gains Tax applies.
If you are trading, the GBP 1,000 trading allowance applies. Gross trading sales of GBP 1,000 or less in a tax year need not be reported. Above GBP 1,000 you must register for Self Assessment, and you then either deduct the flat GBP 1,000 allowance or your actual expenses, whichever is greater. For most resellers, the cost of stock alone dwarfs GBP 1,000, so claiming actual expenses is the better route.
A trader pays Income Tax and National Insurance on profit, which is gross sales minus allowable expenses. Income Tax: nothing on the first GBP 12,570 (personal allowance), 20 per cent to GBP 50,270, 40 per cent to GBP 125,140, then 45 per cent. Class 4 NIC: 6 per cent on profit from GBP 12,570 to GBP 50,270, then 2 per cent. Class 2 NIC is collected through the return.
Many eBay traders also have a job, so their reselling profit stacks on top of employment income taxed at their marginal rate. The multiple income calculator shows the combined position, and the sole trader tax calculator handles the eBay business in isolation.
For a genuine trader, the following costs are allowable because they are incurred wholly and exclusively for the business.
| Expense | What counts | Notes |
|---|---|---|
| Cost of stock | What you pay to buy goods for resale, including job lots and wholesale purchases | The single biggest expense for most resellers; keep purchase receipts |
| eBay and payment fees | Insertion fees, final value fees, eBay managed-payment fees, promoted listings | eBay deducts these before paying you; declare gross sales and claim fees |
| Postage and packaging | Royal Mail, couriers, boxes, mailing bags, bubble wrap, labels | Fully deductible cost of dispatch |
| Mileage and travel | Trips to source stock, car-boot sales, wholesalers and the post office | 45p per mile for the first 10,000 miles, then 25p |
| Storage | Self-storage, garage or unit costs used for stock | Allowable where genuinely for the business |
| Home-working costs | A fair proportion of household running costs, or HMRC's simplified flat rate | Flat rate is simpler for most small traders |
| Equipment and software | Scales, label printers, listing tools, photography kit, accounting software | Larger items can go through the Annual Investment Allowance |
| Professional fees and insurance | Accountancy, stock and public liability insurance | Fully deductible |
How you account for stock depends on your accounting method. On the cash basis, the default for most sole traders, you deduct the cost of stock when you pay for it, which is simple and matches your cash flow. Under traditional accruals accounting you value unsold stock at the year-end and relief for that cost is deferred until the goods sell. For a high-volume reseller carrying significant inventory, the choice can materially affect your taxable profit in a given year, so it is worth understanding which basis you are using.
Most eBay traders stay below the GBP 90,000 VAT registration threshold, but high-volume resellers can cross it, and the test is on gross turnover before fees. Exceed GBP 90,000 in any rolling 12-month period and you must register within 30 days. Use the VAT calculator to model the effect on your margins.
eBay accounts for VAT on its own fees, and for many imported and low-value consignment sales eBay handles VAT under marketplace rules. That handling does not change your Income Tax obligation: your gross sales remain your turnover and the fees are your expense. If you sell second-hand goods at scale, the VAT margin scheme can reduce the VAT due to the margin you make rather than the full selling price, which is worth investigating with an accountant if you register.
Take a sole trader buying and reselling refurbished electronics, with GBP 38,000 of gross eBay sales in 2025/26.
Gross eBay sales: GBP 38,000
Allowable expenses:
Taxable profit: GBP 38,000 minus GBP 30,500 = GBP 7,500
Income Tax (assuming the personal allowance is free): (GBP 7,500 falls within the allowance if this is the only income, giving nil; if a job has used the allowance, GBP 7,500 at 20 per cent = GBP 1,500)
Class 4 NIC (if the allowance is free): nil, as profit is below GBP 12,570; if the trader has other income using the allowance, Class 4 still only applies to profit above the GBP 12,570 NIC threshold across all self-employment.
The figure that makes or breaks this return is the GBP 19,000 cost of stock. A reseller who declares GBP 38,000 of sales but cannot evidence stock purchases will be taxed as though almost all of it were profit. Keep every purchase receipt. Run your own numbers through the sole trader tax calculator before filing.
On eBay the whole game is the distinction between clearing out your own stuff, which is never taxable, and buying to resell, which is. Decide which you are, then keep the receipts.
Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) replaces the annual return with quarterly digital submissions and a final declaration. Mandation runs from April 2026 for gross income over GBP 50,000, April 2027 over GBP 30,000, and April 2028 over GBP 20,000. The threshold uses gross sales before eBay fees, so a high-volume reseller turning over GBP 55,000 on thin margins is still in the first wave.
For eBay traders, MTD means maintaining digital records of stock purchases, sales and fees throughout the year rather than reconstructing everything from eBay reports each January. The MTD for sole traders guide explains the quarterly process. Because eBay produces detailed transaction and fee reports, connecting them to MTD-compatible software automates most of the quarterly work.
Panicking over the platform report when only selling personal items. Decluttering is not trading and is not taxable; the report does not change that.
Treating reselling as a non-taxable hobby. Buying to resell is trading; once gross sales exceed GBP 1,000 you must declare.
Reporting the net payout. Declare gross sales and claim eBay and payment fees as an expense.
Failing to evidence stock costs. Without purchase receipts, HMRC may tax your sales as near-total profit.
Forgetting payments on account. A first balancing bill over GBP 1,000 triggers advance payments toward next year, half each in January and July.
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