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Property Capital Gains Tax Calculator

The CGT on selling a property, with Private Residence Relief, joint ownership and your 60-day deadline.

Checked by the SumAtlas teamUpdated 7 October 2026SourcesHow we check our figuresIndependent: not a government website

Your sale

The property
More optionsOptional. The defaults suit most people; change these if your situation is different.
Owned byOptional

Free to use. Your details are not saved to an account.

Your summary

Capital Gains Tax to pay£27,464
Tax-free allowance and losses£3,000
Taxed at 18%£10,270
Taxed at 24%£106,730

Your gain is £120,000. After the £3,000 allowance you pay £27,464.

£120,000 gain18% and 24%Due within 60 days

THE COMPLETE PICTURE

Your results in detail

Total gain£120,000
Residence relief£0
Taxable gain£117,000
Effective rate22.9%Of your share of the gain
What we assumed
Tax year
2026/27
Residence
UK resident
Owners
One
Main home
Never lived there

Not right for you? Change it under More options.

How the gain is taxed

From the whole gain to the tax.

ItemAmount
Sale price£350,000
Purchase price−£220,000
Buying, selling and improvement costs−£10,000
Gain£120,000
Annual exempt amount−£3,000
Taxed at 18%£10,270
Taxed at 24%£106,730
Capital Gains Tax£27,464

Where the gain goes

Relief, allowance and tax on the gain.

Tax-free allowance and losses£3,000
Taxed at 18%£10,270
Taxed at 24%£106,730

Worth knowing

Reporting, deadlines and reliefs.

Report and pay within 60 days

Use HMRC's UK property account to report the sale and pay within 60 days of completion. Late reporting brings penalties and interest.

Joint ownership can halve the tax

Married couples and civil partners can transfer assets between them without CGT. If each owns half before the sale, each has a £3,000 allowance and their own basic-rate band. Take advice before doing this.

Your rate depends on your income

The part of the gain that fits in your unused basic-rate band is taxed at 18%; the rest at 24%. Pension contributions can extend the band.

Keep your records

Keep purchase and sale documents, invoices for improvements and evidence of when you lived there. HMRC can ask for them.

2026/27 residential rates and allowances. Assumes you lived there before letting it. Not tax advice.

THE PROPERTY CGT GUIDE

Capital Gains Tax on property, explained

Selling a buy-to-let, a second home or a former home can mean paying Capital Gains Tax. This guide explains how the gain is worked out, the 18% and 24% rates, Private Residence Relief, joint ownership, and the 60-day deadline to report and pay.

1The basics

When you pay CGT on property

You may pay Capital Gains Tax when you sell, give away or otherwise dispose of a property that has risen in value, such as:

  • a buy-to-let or other rental property;
  • a second home or holiday home;
  • a home you used to live in but let out or left empty for a while;
  • inherited property that rose in value after you inherited it;
  • land, or part of your garden if sold separately and it is large.

You do not usually pay CGT when you sell your only or main home that you lived in throughout, thanks to Private Residence Relief.

2The gain

Working out the gain

The gain is what you sold the property for, minus what you paid and your allowable costs:

The gain
  1. Sale price£350,000
  2. Purchase price−£220,000
  3. Costs of buyingStamp Duty, legal, survey−£5,000
  4. Costs of sellingEstate agent, legal−£5,000
Gain£120,000

If you were given the property or inherited it, use its market value at that time instead of a purchase price. If you gave it to someone other than a spouse or civil partner, use its market value when you gave it.

3Deductions

Costs you can deduct

You can deduct
Buying
Stamp Duty, legal fees, survey
Selling
Estate agent, legal fees
Improvements
Extension, loft conversion, new kitchen
Defending title
Legal costs to defend ownership
You cannot deduct
Repairs
Repairs and maintenance
Decorating
Redecorating and like-for-like replacements
Mortgage
Mortgage interest and fees
Running costs
Costs already claimed against rent

Keep invoices for improvements. HMRC can ask for evidence, sometimes years later.

4Rates

Rates and the annual exempt amount

Everyone has an annual exempt amount of £3,000. Gains above that are taxed at:

CGT rates on residential property, 2026/27
Part of the gainRate
Within your unused basic-rate band18%
Above the basic-rate band24%

The higher rate on residential property fell from 28% to 24% in April 2024. The annual exempt amount fell from £12,300 in 2022/23 to £3,000 from 2024/25, which has brought many smaller gains into tax.

5Worked example

A worked example

A landlord earning £40,000 sells a buy-to-let they never lived in, with the £120,000 gain from above:

CGT on a £120,000 gain
  1. Gain£120,000
  2. Annual exempt amount−£3,000
  3. £10,270 at 18%Unused basic-rate band£1,849
  4. £106,730 at 24%£25,615
Capital Gains Tax£27,464

That is an effective rate of 22.9% on the gain. It must be reported and paid within 60 days of completion.

6Your rate

How your income sets the rate

Gains are added on top of your taxable income. The part that fits in your unused basic-rate band is taxed at 18%; the rest at 24%. The basic-rate band is £37,700 of taxable income above the Personal Allowance.

CGT on a £120,000 gain by income
Other incomeTaxed at 18%Taxed at 24%CGT
£25,000£25,270£91,730£26,564
£40,000£10,270£106,730£27,464
£60,000£0£117,000£28,080

Because a large gain uses up the basic-rate band quickly, the difference between a lower and higher earner is often smaller than people expect. Selling in a year when your income is lower, such as after retiring, can help a little.

7Relief

Private Residence Relief

Private Residence Relief (PRR) means you pay no CGT on the gain for any period a property was your only or main home. You also get relief for the last 9 months you owned it, as long as it was your main home at some point, even if you had moved out.

If the home was your main residence for only part of the time, the relief is worked out as a fraction: months of relief divided by months owned. The calculator assumes you lived there first and let it or left it afterwards.

Lettings relief is now limited

Lettings relief used to add up to £40,000 of extra relief for letting a former home. Since April 2020 it only applies if you lived in the property at the same time as your tenant.

8Worked example

Example: a former home let out

The same property was bought for £220,000, lived in for 5 years, then let out for 5 years and sold for £350,000. The owner earns £40,000.

A former home let for 5 years
  1. Gain£120,000
  2. Relief share(60 months lived + 9 final months) ÷ 120 months57.5%
  3. Private Residence Relief−£69,000
  4. Chargeable gain£51,000
Capital Gains Tax£10,904

Living there first cut the tax from £27,464 to £10,904.

9Absences

Time away from home

Some periods away still count as living there, if the home was your main residence both before and after:

  • up to 3 years in total for any reason;
  • up to 4 years if your job meant you had to live elsewhere in the UK;
  • any length of time if you worked abroad.

The final period relief is 36 months instead of 9 if you, or your spouse, are disabled or moving into a care home. These rules are detailed, so check HMRC's helpsheet or take advice.

10Couples

Joint owners, spouses and civil partners

Joint owners each pay CGT on their share of the gain. Each has their own £3,000 exempt amount and their own basic-rate band. Two owners with £40,000 incomes splitting the £120,000 gain would each pay £13,064, £26,128 together, about £1,336 less than one owner.

Married couples and civil partners can transfer assets to each other with no CGT. Moving a share into joint names before a sale can use both allowances and both basic-rate bands. If you separate, transfers are also free of CGT for up to three years after you stop living together, and longer under a court order.

11Losses

Losses

If you make a loss on a property, you can set it against gains in the same tax year, or carry it forward to future years if you report it to HMRC within four years. Losses brought forward are used only to bring your gains down to the annual exempt amount, so you do not waste them.

12Deadlines

Reporting and paying in 60 days

  1. CompletionThe sale completes

    The 60-day clock starts on the completion date, not exchange.

  2. Within 60 daysReport and pay

    Use HMRC's UK property account to report the gain and pay an estimate of the tax.

  3. By 31 JanuarySelf Assessment

    If you file a tax return, include the gain. Any difference is settled then.

You only need to report within 60 days if there is tax to pay. Non-UK residents must report all disposals of UK property within 60 days, even if no tax is due. Late reporting and payment bring penalties and interest.

13Special cases

Inherited and gifted property

Inherited property. There is no CGT when you inherit. When you sell, the gain is measured from the probate value, so selling soon after inheriting often produces little or no gain.

Gifts. Giving a property to anyone other than a spouse or civil partner counts as selling it at market value, so CGT can be due even though you received nothing. The gift may also have Inheritance Tax consequences.

14Planning

Legitimate ways to reduce the bill

  • Claim every allowable cost, including Stamp Duty and improvement work.
  • Use both spouses' allowances and basic-rate bands through joint ownership.
  • Time the sale for a year when your income is lower.
  • Make pension contributions in the year of sale, which can extend your basic-rate band.
  • Use capital losses from other assets.
  • If it was your home, make sure Private Residence Relief, including the final 9 months, is claimed.
15Worked example

Example: deducting improvements

The landlord in the earlier example spent £20,000 on a rear extension. That is a capital improvement, so it comes off the gain:

The same sale with a £20,000 extension
  1. Gain before improvements£120,000
  2. Extension−£20,000
  3. Gain£100,000
Capital Gains Tax£22,664

That saves £4,800, 24% of the extension's cost. Replacing a kitchen with a similar one, by contrast, is usually a repair and is not deductible from the gain, though it may be deductible from rental income instead.

16Special cases

Selling part of a property or land

If you sell part of your garden or land, the gain is worked out using a share of the original cost. Private Residence Relief usually covers gardens and grounds up to half a hectare, including the building, if they are enjoyed with the home. If you sell land separately after selling the house, relief may not apply.

Selling a share of a property, for example to a partner, is a disposal of that share and CGT can be due on it.

17Companies

Property owned through a company

A company does not pay Capital Gains Tax. Gains on property it sells are part of its profits and pay Corporation Tax at 19% to 25%. Getting the money out of the company then means dividends or salary, which are taxed again. Moving a property you own personally into a company counts as selling it at market value, so CGT, and usually Stamp Duty, can be due.

18Overseas

Non-residents and moving abroad

Non-UK residents pay UK CGT on gains from UK property, usually only on the gain since April 2015 for residential property. They must report every sale within 60 days, even if there is no tax to pay.

If you are moving abroad, selling before you leave or after you return can change what is due. Some countries also tax the same gain, with relief under a double tax agreement. Take advice before selling around a move.

19Paperwork

Records to keep

HMRC can check your CGT calculation, sometimes years later. Keep:

  • the completion statements from when you bought and sold;
  • your Stamp Duty return and legal and estate agent invoices;
  • invoices for improvements, with dates, and photos if you have them;
  • evidence of when the property was your main home, such as council tax bills, bank statements and the electoral roll;
  • valuations used for inherited or gifted property.

Keep them for at least a year after the Self Assessment deadline for the tax year of the sale, and longer if you can.

20Summary

Key numbers for 2026/27

£3,000
Annual exempt amount
18% / 24%
CGT rates on residential property
9 months
Final period always covered by home relief
60 days
To report and pay after completion
£37,700
Basic-rate band that sets the 18% portion
Questions

Frequently asked

What is the CGT rate on property?

18% on the part of the gain within your unused basic-rate band and 24% above it, after the £3,000 annual exempt amount.

Do I pay CGT on my home?

Not if it was your only or main home throughout. Private Residence Relief covers the time you lived there plus the last 9 months.

When do I have to pay CGT on property?

Report and pay within 60 days of completion using HMRC's UK property account.

What costs can I deduct?

Buying and selling costs such as Stamp Duty, legal and estate agent fees, and the cost of improvements. Not repairs or mortgage interest.

Do joint owners each get an allowance?

Yes. Each pays CGT on their share of the gain, with their own £3,000 exempt amount and basic-rate band.

Do I pay CGT when I sell my home?

Not if it was your only or main home throughout and the garden is under half a hectare. Private Residence Relief covers it.

Is CGT due at exchange or completion?

For tax, the disposal happens at exchange, which sets the tax year. The 60-day reporting deadline runs from completion.

Can I deduct mortgage interest from the gain?

No. Interest is a cost of financing, not of buying or improving the property.

I own two homes. Which one gets relief?

The one that is your main residence in practice. You can nominate which one counts by telling HMRC within two years of having a second home.

Does the 60-day rule apply to shares or other assets?

No, only to UK residential property. Other gains are reported through Self Assessment.

Can I pay CGT in instalments?

Not usually. It is due within 60 days, though you can ask HMRC for time to pay if you cannot afford it.

What exchange rate do I use for property abroad?

UK residents pay UK CGT on property abroad too. Convert the purchase and sale prices into pounds at the rates on those dates.

Do I pay CGT if I sell at a loss?

No. Report the loss to HMRC so you can set it against future gains.

Good to know

2026/27 rules for UK residents. Assumes you lived in the property before letting it. Not tax advice: an accountant can check complex cases.