You may have to pay Capital Gains Tax (CGT) tax when you sell or dispose of a property that is not your main home. This includes buy-to-let properties, business premises, land and inherited property.

Your gain is broadly the difference between what you paid for the property and what you sell it for. In some cases such as where the property was gifted or sold below market price you must use market value instead. If your total gains exceed the annual exemption, CGT will be payable.

For UK residential property, CGT is charged at 18% for basic rate taxpayers and 24% for higher and additional rate taxpayers. You can reduce your gain by deducting allowable costs, such as legal fees, estate agent fees and the cost of capital improvements (but not routine maintenance).

You do not usually pay CGT on transfers to a spouse or civil partner, or to a charity. Special rules also apply to jointly owned property, overseas property and disposals from estates. If CGT is due on the sale of UK residential property, you must report and pay it within 60 days of completion. Keeping accurate records and reviewing your position early can help avoid unexpected liabilities and ensure you claim all available reliefs.

If you have tenants living in your property, it is important to understand the Capital Gains Tax (CGT) implications. In most cases, there is no CGT to pay when you sell a property that has been your main residence, as the gain is covered by Private Residence Relief (PRR). However, if you have let out part of your home, your entitlement to full PRR may be restricted.

However, you may be entitled to letting relief, provided you lived in the property at the same time as your tenant. Letting relief is only available where there has been shared occupation between homeowner and tenant.

The maximum letting relief available is the lower of £40,000, the amount of PRR due, or the gain attributable to the part of the property that was let. For example, if you rented out a large bedroom representing 10% of your home and later sold the property at a gain of £75,000, you would qualify for PRR on 90% of the gain (£67,500). The remaining £7,500 would relate to the let portion. As this is lower than both £40,000 and the PRR due, the full £7,500 would qualify for letting relief. In this scenario, the entire £75,000 gain would be covered by PRR and letting relief, meaning no CGT would be payable.

You are not considered to be letting out your home if you have a lodger who shares living space with you. Also, if children or parents live with you and contribute towards household expenses, this is not normally treated as a formal letting for CGT purposes, and full PRR is likely to remain available.

Claiming Business Asset Rollover Relief allows for the deferral of Capital Gains Tax (CGT) when taxpayers sell or dispose of certain assets and use all or part of the proceeds to buy new business assets. The relief means that the tax on the gain of the old asset is effectively rolled over into the cost of the new asset with any CGT liability deferred until the new asset is sold.

Where only part of the proceeds from the sale of the old asset is used to buy a new asset a partial rollover claim can be made. It is also possible to claim for provisional rollover relief where the taxpayer expects to buy new assets but has not yet done so.

Business Asset Rollover Relief can also be claimed if taxpayers use the proceeds from the sale of the old asset to improve assets they already own.

The total amount of rollover relief is dependent on the total amount reinvested to purchase new assets.

The main qualifying conditions to be met to when claiming relief are as follows:

• you must buy the new assets within 3 years of selling or disposing of the old ones (or up to one year before);
• your business must be trading when you sell the old assets and buy the new ones; and
• you must only use the old and new assets for trading.

Under certain circumstances, HMRC has the discretion to extend these time limits. In addition, both the old and new assets must be used by your business, and the business must be trading when you sell the old assets and buy the new ones.

Taxpayers must claim relief within 4 years of the end of the tax year when they bought the new asset (or sold the old one, if that happened after).

Business Asset Disposal Relief (BADR) can significantly reduce the Capital Gains Tax due when selling a business or shares, but with higher rates coming from April 2026, timing and eligibility matter more than ever.

BADR applies to the sale of a business, shares in a trading company, or an individual’s interest in a trading partnership. When this relief is available, a reduced Capital Gains Tax (CGT) rate, currently 14%, is applied instead of the standard rate. These rates will increase in the new tax year starting on 6 April 2026 to 18%. As a result, disposals made after April 2026 will face a higher CGT rate.

To qualify for BADR, certain conditions must be met:

Sale of a Business or Business Closure:

• You must be a sole trader or business partner; and
• You must have owned the business for at least 2 years leading up to the sale or closure.
• You must dispose of your business assets within 3 years to qualify.

Sale of Shares or Securities:

Both of the following must apply for at least 2 years up to the date you sell your shares:

• You must be an employee or office holder of the company (or a company within the same group).
• The company’s main activities must involve trading, not non-trading activities like investment, or it must be the holding company of a trading group.

Additional rules can apply if the shares are from an Enterprise Management Incentive (EMI).

Currently, you can claim a total of £1 million in BADR over your lifetime, allowing you to qualify for the relief multiple times. The lifetime limit may be higher if you sold assets before 11 March 2020.

CGT on certain UK residential property sales often has a strict 60-day reporting and payment deadline, so early planning can avoid penalties.

If you are selling a second property, such as a buy-to-let or a former home that is no longer your main residence, CGT will usually apply. This is different from selling your main home, which is often covered by Principal Private Residence (PPR) relief and therefore exempt from CGT.

The annual exempt amount applicable to Capital Gains Tax (CGT) is currently £3,000. CGT is normally charged at a simple flat rate of 24% and this applies to most chargeable gains made by individuals. If taxpayers only pay basic rate tax and make a small capital gain, they may only be subject to a reduced rate of 18%. Once the total of taxable income and gains exceed the higher rate threshold, the excess will be subject to 24% CGT. 

Most homeowners do not pay CGT when selling their main family home, as PPR relief usually applies. However, CGT is commonly payable on gains from:

• Buy-to-let properties
• Second homes or holiday homes
• Business premises
• Land
• Inherited property (based on the increase in value since inheritance, not since original purchase)

Any CGT due on the sale of UK residential property must usually be reported and paid within 60 days of completion. This requires submitting a UK Property CGT return and making a payment on account within that timeframe.

Failing to meet the 60-day deadline can result in penalties and interest, so it is important to plan ahead and obtain advice as early as possible when selling a property that is not fully exempt.