Capital gains tax on property sales remains one of the most significant costs for UK landlords and property investors. With rates potentially reaching 28% for higher-rate taxpayers, understanding the 2026 rules is essential for anyone planning to sell investment property.
This guide covers the current capital gains tax rates, annual allowances, and practical strategies to help you minimise your tax liability when selling property in 2026.
Capital Gains Tax Rates on Property 2026
The capital gains tax rates for residential property sales in 2026 depend on your total taxable income and the size of your gain:
- Basic rate taxpayers: 18% on residential property gains
- Higher and additional rate taxpayers: 28% on residential property gains
- Non-residential property: 10% (basic rate) or 20% (higher/additional rate)
If your gain pushes you into the higher rate tax band, you'll pay 18% on the portion within the basic rate band and 28% on the remainder. For example, a basic rate taxpayer with a £60,000 property gain might pay 18% on £50,000 and 28% on £10,000 if it takes them over the higher rate threshold.
Non-UK residents face an additional 2% surcharge on residential property gains, making their rates 20% and 30% respectively.
Annual Exempt Amount 2026
The capital gains tax annual exempt amount (previously called the annual exemption) was significantly reduced in recent years. For the 2025/26 tax year, the annual exempt amount is £3,000 per person.
This means you can make capital gains of up to £3,000 in a tax year without paying capital gains tax. For married couples and civil partners, each person gets their own £3,000 allowance, potentially providing £6,000 of combined exemption.
The reduction from previous higher exemption levels means careful planning is now more important than ever when timing property sales.
Calculating Your Capital Gains Tax on Property
Your capital gains tax liability depends on several factors beyond the basic rates. Here's how the calculation typically works:
Step 1: Calculate Your Gain
Your gain is the difference between your sale price and your total cost basis, which includes:
- Original purchase price
- Stamp duty and legal fees on purchase
- Estate agent fees and legal costs on sale
- Capital improvements (not repairs or maintenance)
Step 2: Apply Reliefs and Exemptions
Several reliefs can reduce your taxable gain:
- Principal Private Residence Relief (if you lived in the property)
- Lettings Relief (limited scope from April 2020)
- Annual exempt amount (£3,000 in 2025/26)
Step 3: Calculate Tax Due
Apply the appropriate rate (18% or 28%) to your net taxable gain, considering your total income for the year.
Principal Private Residence Relief
If you lived in the property as your main home at any point, you might qualify for Principal Private Residence Relief. This relief exempts the periods when the property was your main residence from capital gains tax.
You also get relief for the final 9 months of ownership (regardless of whether you lived there) and certain periods of absence, such as working away from home or living in job-related accommodation.
For landlords who previously lived in their rental property, this relief can significantly reduce capital gains tax liability.
Reporting and Payment Deadlines
Capital gains tax on UK residential property must be reported and paid within 60 days of completion. This applies to both UK residents and non-residents selling UK residential property.
You must submit a residential property return online and pay the tax due, even if you expect to claim the gain on your annual Self Assessment return. Failure to meet the 60-day deadline results in penalties and interest charges.
For non-residential property, you report gains through your annual Self Assessment return, with payment due by 31 January following the tax year of disposal.
Tax Planning Strategies for 2026
Several strategies can help minimise your capital gains tax on property sales:
Timing Your Sale
Consider spreading sales across tax years to use multiple annual exempt amounts. With only £3,000 available each year, this strategy has limited impact but can still save tax for smaller gains.
Using Spouse's Allowances
Transferring property to a spouse or civil partner before sale can utilise their capital gains tax allowances and potentially lower tax rates if they're in a different income tax band.
Offsetting Losses
Capital losses from other assets can reduce your property gains. Consider realising losses in the same tax year as your property sale to minimise overall capital gains tax.
Company Ownership
Holding property through a company structure changes the tax treatment entirely. Companies pay corporation tax on gains rather than capital gains tax, though this involves different considerations around incorporation and ongoing compliance.
Special Considerations for Portfolio Landlords
If you own multiple properties, careful planning becomes even more important. Consider:
- Which properties to sell in which tax years
- The interaction between capital gains and income tax on rental profits
- Whether corporate ownership makes sense for future acquisitions
- The impact of Section 24 mortgage interest restrictions on your overall tax position
Portfolio landlords should consider professional advice to optimise their disposal strategy across their entire property portfolio.
Changes and Future Outlook
Capital gains tax rules continue to evolve. Recent changes include the significant reduction in annual exempt amounts and the introduction of 60-day reporting for residential property.
The government has signalled ongoing review of capital gains tax as part of broader tax policy. Landlords should stay informed about potential changes and consider how these might affect their long-term property strategy.
With Making Tax Digital expanding to include rental income from April 2026, landlords will need to maintain more detailed records that will also help with accurate capital gains tax calculations.
Professional Advice and Compliance
Capital gains tax calculations can be complex, particularly for properties with mixed use periods, substantial improvements, or where multiple reliefs apply. The 60-day reporting requirement also creates tight deadlines that require advance planning.
Professional advice is particularly valuable for:
- Complex ownership structures or property histories
- High-value disposals where small percentage savings mean significant money
- Portfolio disposals requiring coordination across multiple properties
- Non-resident sellers facing additional compliance requirements
Getting specialist advice early in your disposal planning can identify opportunities and ensure compliance with all relevant deadlines and requirements.