Property trader or investor?
Sell a property you bought to do up and sell on, and HMRC may tax the profit as income, not a capital gain. See which way your answers point and what it changes.
Your answer
Answer the questions to see which way your sale leans.
About this calculator
For anyone selling a house, flat or land who wants to know whether HMRC would see the profit as trading (taxed as income, with National Insurance) or as an investment (a capital gain). It gives a rough view, the signs that point each way, and the tax both ways if you add the figures.
It's a rough guide, not a ruling. HMRC looks at the whole picture and no single sign decides it. It's for one owner and doesn't include main home relief: if you've lived there, use our home gain calculator for the gain.
What happens to your answers
We don’t keep them. Your answers go to our server to do the sums and aren’t stored or logged. If you copy a link to your answers, they’re in the link itself, so only share it with people you trust.
How it’s worked out
HMRC uses a set of signs called the badges of trade. For property the main ones are: why you bought it, whether you did it up or developed it, how long you held it, how you paid for it, whether you've done other deals and whether property is your line of work. Each of your answers points towards trading, towards an investment, or neither, and we add them up.
Two answers count double, because the law taxes them as income even when it isn't a trade (transactions in UK land): buying mainly to sell at a profit, and developing a property to sell. Either one stops our view landing on investment.
With the figures, the profit is the sale price less what you paid and your costs. As trading, we add it to your other income for income tax and work out Class 4 National Insurance on it. As an investment, it's a capital gain: 18% inside the basic-rate band your income leaves, 24% above, after the £3,000 tax-free allowance.
Worked example
This looks like trading, which would cost about £9,528 more in tax than a capital gain.
2026/27 tax year · England · other income £40,000 · one owner · 1 other property bought and sold · no main home relief
| You bought it meaning to sell it on at a profit (counts double: the law taxes this as income) | +2 trading |
|---|---|
| It stood empty: no income from it, so the profit had to come from selling | +1 trading |
| You did it up before selling: work to make an asset sell at a profit is typical of trading | +1 trading |
| Held under a year: a quick sale points to trading | +1 trading |
| A bridging or short-term loan that the sale repays points to trading | +1 trading |
| You've bought and sold other properties too: repeated deals point to trading | +1 trading |
| Property isn't your line of work: neutral | Neutral |
| Net score (trading at +3 or more, investment at −2 or less) | +7 |
| Our rough view | Looks like trading |
| Sale price | £280,000 |
| Less what you paid (or its value when you got it) | − £200,000 |
| Less buying and selling costs (stamp duty, legal and agent fees, work done) | − £30,000 |
| Profit (the same figure both ways) | £50,000 |
| As trading: income tax on the profit, on top of your £40,000 other income | £17,946 |
| As trading: Class 4 National Insurance on the profit | £2,246 |
| Tax as trading income | £20,192 |
| As an investment: the profit is a capital gain | £50,000 |
| Tax-free allowance | − £3,000 |
| At 18% (inside the basic-rate band) | £10,270 |
| At 24% | £36,730 |
| Capital Gains Tax | £10,664 |
| Trading costs more by | £9,528 |
Worked out using HMRC's published rates for the 2026/27 tax year (6 April 2026 to 5 April 2027), on a yearly basis.
Questions people ask
Can one property sale be trading?
Yes. HMRC says a single deal can be trading, though it's harder to show. Buying with a plan to sell, a short-term loan and work to add value can be enough on their own.
Is trading always more tax?
Usually, for higher-rate taxpayers and big profits. But with little other income, the tax-free allowance can make income tax and Class 4 cheaper than Capital Gains Tax on a small profit. As trading, costs such as loan interest also come off the profit.
I changed my mind and sold a property I meant to keep. Is that trading?
Usually not. What counts most is why you bought it at the time. Selling earlier than planned doesn't turn an investment into a trade on its own.
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