The question of whether selling your home triggers a tax liability is one that most UK homeowners will ask at some point. The good news for the majority is that selling your main residence attracts no capital gains tax, but there are circumstances where tax does apply and it is worth understanding when and why.

Principal Private Residence Relief

The primary reason most homeowners pay no capital gains tax on the sale of their home is Principal Private Residence Relief, often abbreviated to PPR relief. This relief exempts the gain made on the sale of a property that has been your only or main residence throughout your period of ownership from capital gains tax. If you have lived in the property as your main home for every period you owned it, full PPR relief applies and no CGT is due regardless of the size of the gain.

When Capital Gains Tax May Apply

CGT can apply on the sale of your home in several circumstances. If you have let the property for any period, a proportion of the gain relating to the letting period may be taxable. The proportion is calculated based on the period of letting relative to the total period of ownership. Lettings relief, which previously provided significant relief on gains from letting a main residence, was substantially reduced in April 2020 and now only applies where the owner was resident in the property at the same time as the tenant, which is a very narrow circumstance.

If you have owned two or more residential properties at the same time, the period during which each was your main residence, and which property was designated as your main residence, affects the PPR relief calculation. You can nominate which property is your main residence for PPR relief purposes within two years of acquiring a second property, but if no nomination is made HMRC will determine the main residence based on facts.

If the property has never been your main residence, for example a buy-to-let or a second home you did not live in, the full gain is potentially taxable with no PPR relief.

CGT Rates on Residential Property

Capital gains tax on residential property in the UK is charged at 18 percent for basic rate taxpayers and 24 percent for higher and additional rate taxpayers on gains after the annual exempt amount. The annual exempt amount for individuals is 3,000 pounds in the 2024/25 tax year.

Reporting Requirements

Since April 2020, any capital gain on the sale of UK residential property that is either not covered by PPR relief or exceeds the annual exempt amount must be reported to HMRC within 60 days of completion and any CGT due must be paid within the same period. This is a separate obligation from the annual Self Assessment return. Failing to report within 60 days attracts interest and penalties.

Other Taxes on Property Sales

There is no other tax specifically charged on the sale of a property in the UK. Stamp duty is paid by the buyer, not the seller. Income tax does not apply to the capital gain on a property sale, only to rental income if the property has been let.

Summary

Most UK homeowners pay no tax when selling their main residence because PPR relief exempts the gain. CGT can apply where the property has been let, has been used partly as a business, or was not always the owner's main residence. Gains on residential property are taxed at 18 or 24 percent above the annual exempt amount. Reportable gains must be reported and paid within 60 days of completion. Tax advice from an accountant is recommended for any sale where the PPR relief position is not straightforward.