How To Avoid Capital Gains Tax (UK) On Rental Property

Last updated 10 August 2026. All figures on this page are for the 2026/27 UK tax year and are sourced from HMRC.

Quick answer: When you sell a UK rental property you pay Capital Gains Tax on the gain at 18% on the part of the gain that falls within your basic rate Income Tax band and 24% on anything above it, after deducting your £3,000 annual exempt amount. You must report and pay HMRC within 60 days of completion. Private Residence Relief, allowable costs and transferring a share to a spouse or civil partner can reduce the bill.

This guide covers legitimate reliefs and planning. There is no lawful way to avoid Capital Gains Tax entirely on the sale of a buy-to-let property.

When selling a property in the UK, landlords often face the challenge of paying capital gains tax (CGT) on the profits made. While this can sneak up on you and feel like a nasty surprise when you’re hit with a big bill, there are a range of legitimate reliefs and allowances available to help reduce that tax liability.

This guide explores actionable tips and key information on how to reduce capital gains tax (UK) on a rental property, explains the reliefs that genuinely apply such as Private Residence Relief, and sets out why Lettings Relief no longer applies to most landlords.

Understanding Capital Gains Tax on UK Property

Capital gains tax (UK property) rules apply when you sell a property that is not your main residence, such as a rental or investment property. The taxable gain is the difference between the sale price and the property's original purchase price, accounting for allowable expenses.

For the 2026/27 tax year the capital gains tax rates on residential property are:

• 18% on the part of your gain that falls within your basic rate Income Tax band
• 24% on any part of your gain above the basic rate band

The rate is decided by the size of the gain, not just by your job title. You deduct the annual exempt amount from the gain, add what is left to your taxable income, and any part of that total above the basic rate band is taxed at 24%. The basic rate band for 2026/27 is £37,700. This matters: a landlord who thinks of themselves as a basic rate taxpayer can still pay 24% on most of a large property gain.

The 18% and 24% rates have applied to residential property disposals since the Autumn Budget of October 2024. If you are reading guidance that quotes 28% as the higher rate on residential property, it is out of date. You can check the current position and previous years on HMRC's Capital Gains Tax rates and allowances page.

Being aware of available reliefs and allowances can significantly reduce your liability for capital gains tax on rental property or investment property.

Related: About Capital Gains Tax On Investment Property In The UK

You have 60 days to report and pay CGT after completion

You must report and pay any Capital Gains Tax due on a UK residential property disposal within 60 days of completing the sale. HMRC can charge interest and a penalty if you do not report and pay on time. This is the most common and most expensive avoidable mistake landlords make when selling.

Two things catch people out:

• The clock runs from completion. Not from exchange of contracts, and not from the end of the tax year.
• You report through a Capital Gains Tax on UK property account. If you are already registered for Self Assessment, you also need to include the disposal on your tax return.

You must report the disposal even if the property was jointly owned, in which case each owner reports their own share of the gain. If you are reading older guidance that gives the deadline as 30 days, that figure is out of date and following it would leave you thinking you had less time than you do.

Worked example: CGT on a rental property sale in 2026/27

The figures below are illustrative and are used only to demonstrate the method. Your own numbers will be different. The tax rate and the annual exempt amount used here are the 2026/27 figures published by HMRC.

Step 1: work out the gain

• Sale price: £300,000
• Less purchase price: £200,000
• Less allowable costs: £30,000, made up of Stamp Duty Land Tax on the purchase £7,500, legal fees on the purchase £1,500, estate agent fees on the sale £4,500, legal fees on the sale £1,500, and the cost of an extension £15,000
• Gain: £70,000

Step 2: deduct the annual exempt amount

• Gain: £70,000
• Less annual exempt amount: £3,000
• Taxable gain: £67,000

Step 3: apply the rate

• If you are a higher rate taxpayer: the whole £67,000 is taxed at 24%, giving £16,080.
• If your other taxable income is £20,000: £17,700 of the gain fills the rest of your basic rate band and is taxed at 18%, giving £3,186. The remaining £49,300 is taxed at 24%, giving £11,832. Total £15,018.

Stated in prose: on a £70,000 gain in 2026/27, after deducting the £3,000 annual exempt amount, a higher rate taxpayer pays £16,080 and a taxpayer with £20,000 of other taxable income pays £15,018. The difference between the two is smaller than most landlords expect, because a large gain pushes you into the 24% band whatever your salary is.

What costs can you deduct from a capital gain?

You can deduct the costs of acquiring, improving and disposing of the property. HMRC's list of allowable incidental costs is exhaustive, which means anything not on it cannot be deducted. The detail is set out in HMRC's Capital Gains Manual at CG15250.

Costs you can deduct

• Stamp Duty Land Tax paid when you bought the property. Use our stamp duty calculator if you need to check the figure.
• Legal and conveyancing fees on both the purchase and the sale.
• Estate agent fees on the sale.
• Surveyor, valuer and auctioneer fees paid for the purchase or the sale.
• Advertising costs incurred to find a buyer.
• Capital improvements still reflected in the property when you sell, for example an extension, a loft conversion or adding an extra bathroom.

Costs you cannot deduct

• Mortgage interest and arrangement fees. These are not on HMRC's list of allowable costs, so they cannot reduce your capital gain. Mortgage interest is handled through the finance cost restriction against your rental income instead.
• Routine repairs, maintenance and redecorating. HMRC states plainly that normal maintenance costs, such as decorating, do not count.
• Your own time and labour. Work you did yourself is not expenditure you incurred, so there is nothing to deduct.
• Costs already claimed against your rental income. You cannot claim the same cost twice.

Keep the paperwork for the whole period you own the property. A £15,000 extension you cannot evidence is £3,600 of Capital Gains Tax at 24% that you will pay for no reason.

Related: Understanding Tax On Rental Income: A Guide For Landlords

How to Avoid Capital Gains Tax (UK)

There is no way to remove Capital Gains Tax entirely from the sale of a property that has only ever been let. What follows are the legitimate reliefs and planning steps that reduce the bill. None of them is guaranteed to apply to your circumstances.

1. Utilize Private Residence Relief

Private Residence Relief (PRR) is the most effective way to reduce capital gains on a rental property, but only if the property has been your only or main residence at some point during your ownership. If you have never lived in the property, you get no Private Residence Relief at all, which is the position for most buy-to-let landlords.

Where PRR does apply it is time-apportioned. You get relief for:

• the periods the property was your only or main residence
• the final 9 months of ownership, regardless of how you used the property in that time, as long as it was your only or main residence at some point

The final period is 36 months instead of 9 if you are a disabled person or a resident in a care home and have no other relevant right in relation to a private residence. For disposals between 6 April 2014 and 6 April 2020 the final period was 18 months.

Certain absences are treated as periods of residence, provided the property was your only or main residence both before and after the absence:

• absences for any reason, totalling no more than 3 years in all
• absences of no more than 4 years where the distance from your workplace prevents you living at home, or your employer requires you to work away in order to do your job effectively
• any period of absence during which you are in employment and all of your duties are carried on outside the UK

PRR reduces the gain in proportion to the time the property was genuinely your home. It does not wipe out the tax on a property that has mostly been let. Full details are in HMRC's Private Residence Relief helpsheet HS283.

2. Take Advantage of Your Annual Exemption

Every individual has an annual CGT exempt amount, which is £3,000 for 2026/27. It has fallen sharply in recent years: it was £6,000 in 2023/24 and £12,300 in 2022/23, so older planning assumptions are worth revisiting. To make use of it:

• Time your disposals: selling assets across more than one tax year lets you use a separate annual exempt amount in each year. This is straightforward with shares and harder with a single property, which is usually one disposal on one date.
• Own the property jointly: if you and your spouse or civil partner each own a share, each of you has your own annual exempt amount to set against your own share of the gain.

The annual exempt amount is set against the gains charged at the highest rate first, so on a residential property gain it is worth up to £720 of tax saved, being £3,000 at 24%.

3. Consider Timing and Ownership

Your sale timing and ownership structure both affect the amount of Capital Gains Tax you pay.

• Sell during a lower income year: more of the gain fits inside your basic rate band and is taxed at 18% rather than 24%. This helps at the margin, but a large gain will still push you into the 24% band.
• Transfer a share to a spouse or civil partner: you do not pay Capital Gains Tax on assets you give or sell to your husband, wife or civil partner, unless you separated and did not live together at all in that tax year. Your spouse inherits your original cost, so the gain is not erased, it moves. Once you each hold a share, you each have an annual exempt amount and your own basic rate band to set against it.

Inter-spouse transfers need to be completed before the sale is agreed and should be properly documented. This is a case for professional advice rather than a DIY exercise. If you are weighing up whether to sell at all, why landlords are selling up sets out the wider picture, and selling a rental property under Ground 1A of the Renters' Rights Act covers gaining possession before the sale.

Lettings Relief: why most landlords no longer qualify

Lettings Relief is the most widely misunderstood relief in UK property tax. Contrary to what you may still read elsewhere, a standard buy-to-let landlord does not qualify for it.

Since 6 April 2020, Lettings Relief only applies where you were living in the property as your only or main residence at the same time as your tenant. HMRC is explicit that lettings relief does not apply where the whole of the dwelling house was let for a period. If you moved out and let the entire property, you get no Lettings Relief, even if the property was once your home.

Where it does apply, the relief is the lowest of:

• the amount of Private Residence Relief already calculated
• £40,000
• the amount of the chargeable gain arising because of the letting

In practice this means Lettings Relief is now for live-in landlords and for homeowners who let a room or part of their home while continuing to live there. Having a single lodger who shares your living space does not count as letting out your home at all. If you have made a decision based on the older, far wider version of this relief, check your position with an adviser before you sell.

The Importance of Expert Advice

Capital Gains Tax on a rental property is not a one-size-fits-all calculation, and nothing on this page is personal tax advice. Every relief described here depends on facts specific to you: how long you owned the property, whether you ever lived in it as your main home, whether you shared it with a tenant, how the property is owned, and what your income is in the year you sell.

Get advice from a qualified accountant or tax adviser before you exchange contracts. Once the sale completes your options narrow considerably and the 60-day reporting clock is already running. No strategy on this page is guaranteed to apply to your circumstances, and none of them removes the tax entirely on a property that has only ever been let.

A good adviser will also spot the reliefs you have missed, which is where accurate records pay for themselves. Software like Landlord Studio helps you track your property finances, so you can hand over the purchase costs, improvement costs and disposal costs your accountant will ask for without hunting through six years of paperwork.

Related: Rental Property Expenses Checklist

How To Avoid Capital Gains Tax On Rental Property: Final Words

You cannot lawfully avoid Capital Gains Tax entirely on the sale of a buy-to-let property. What you can do is make sure you are not paying more than you actually owe.

That comes down to four things: claiming every allowable cost you can evidence, claiming Private Residence Relief if you genuinely lived in the property, using your annual exempt amount and, where the property is jointly held, your spouse's as well, and reporting within 60 days so you do not add penalties and interest on top of the tax. Broader tax saving strategies and landlord tax relief rules are worth reviewing well before you decide to sell.

All of this depends on meticulous, long term record keeping, which means holding accurate detailed financial records for the whole period you own the property, whether you are selling now or planning your next move. It is always advisable to talk to a tax professional who can build a strategy around your own long-term goals.

Thousands of Landlords use Landlord Studio to manage their rental property finances and tax obligations. Allowing them to save time, reduce stress, and increase ROI.

Create your free Landlord Studio account today and have complete confidence in your financial records.

You Might Also Like

• A Guide To Landlord Tax: Rates, Relief, and Changes
• Autumn Budget 2024: 7 Key Takeaways For Landlords
• Landlord Guide To Multiple Dwellings Relief and 2024 Tax Changes
• The Ultimate Guide to Self-Assessment Tax Returns For Landlords
• Making Tax Digital (MTD) for Landlords: The Complete Guide

How To Avoid Capital Gains Tax On Rental Property In The UK: FAQ

Q: How much CGT will I pay on a rental property?

A: For 2026/27, you pay 18% on the part of the gain that falls within your basic rate Income Tax band and 24% on anything above it, after deducting the £3,000 annual exempt amount. On a £70,000 gain, a higher rate taxpayer would pay £16,080. Deduct your purchase price, Stamp Duty Land Tax, legal and agent fees and any capital improvements before applying the rate.

Q: How long do I need to live in a property to avoid capital gains tax in the UK?

A: For full Private Residence Relief the property has to have been your only or main residence throughout your period of ownership, apart from allowed absences. The final 9 months of ownership always qualify. There is no minimum number of months that buys you full exemption on a property you have also let out, because the relief is apportioned by time.

Q: Can I avoid CGT by moving into my rental property?

A: Not entirely. Moving in can make the property your main residence and bring Private Residence Relief into play, but the relief is time-apportioned across your whole period of ownership. If you let the property for ten years and lived in it for two, you get relief for roughly the two years plus the final 9 months, not for the whole gain. HMRC also requires evidence of genuine residence, so a short-term stay arranged to create a tax advantage will not succeed.

Q: Is Letting Relief still available?

A: Only in narrow circumstances. Since 6 April 2020 Lettings Relief applies only where you lived in the property as your main residence at the same time as your tenant. HMRC states that it does not apply where the whole of the dwelling house was let. Most buy-to-let landlords who moved out and let the entire property no longer qualify. Where it does apply, the relief is capped at the lowest of the Private Residence Relief claimed, £40,000, or the chargeable gain from the letting.

Q: Do I pay CGT if I sell at a loss?

A: No. Capital Gains Tax is only charged on a gain. If you sell at a loss you should still report it, because an allowable loss can be set against other capital gains in the same tax year and carried forward against future gains if you claim it. Losses on a property that would have qualified for full Private Residence Relief are not allowable.

Q: How long do I have to report CGT on a property sale?

A: 60 days from the date of completion, not from exchange of contracts. You report and pay through a Capital Gains Tax on UK property account, and HMRC can charge interest and a penalty if you are late. If you are already registered for Self Assessment you also include the disposal on your tax return.

Q: How does passing property to a spouse affect CGT?

A: You do not pay Capital Gains Tax when you give or sell an asset to your husband, wife or civil partner, unless you separated and did not live together at all in that tax year. Your spouse takes on your original acquisition cost, so the gain is deferred rather than removed. The benefit comes when the property is jointly held, because each of you can then use your own annual exempt amount and your own basic rate band against your share of the gain.

Q: Are there other reliefs available to reduce CGT on property?

A: Other reliefs such as Business Asset Disposal Relief may apply in specific circumstances, for instance where the property was used in a qualifying business. These are fact-dependent and rarely apply to a standard residential letting. Check with a tax adviser rather than assuming eligibility.