# Do You Pay Capital Gains Tax When Selling a UK Home?

A complete guide to Capital Gains Tax (CGT) rules when selling property in the UK, detailing Private Residence Relief eligibility, 2026/27 tax rates, calculations, and HMRC reporting deadlines.

**Published:** 2026-07-02  
**Updated:** 2026-07-05  
**Source:** https://aztajournal.com/gb/capital-gains-tax-selling-home

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> Most UK sellers do not pay Capital Gains Tax when selling their main home because Private Residence Relief automatically protects them. However, if you have let out your property, used it for business, or owned multiple properties, you may owe tax on a portion of the gain.

## Key Takeaways: CGT on Selling Your UK Home

- **Full tax relief** applies if the property was your only or main home for your entire period of ownership.
- **Private Residence Relief (PRR)** automatically exempts the gain if all qualifying HMRC conditions are met.
- **Partial liability** is triggered if you let the property to tenants or use space exclusively for business.
- **The 2026/27 residential CGT rates** are set at 18% for basic rate taxpayers and 24% for higher rate taxpayers.
- **The 2026/27 annual exempt amount** allows you to make up to £3,000 of gains completely tax-free.
- **A strict 60-day window** applies from the completion date to report and pay any liability to HMRC.

## Do I have to pay Capital Gains Tax when I sell my house?

You do not have to pay Capital Gains Tax when you sell your house if it was your only or main home. Under sections 222 and 223 of the Taxation of Chargeable Gains Act 1992, the entire gain is exempt from tax through Private Residence Relief.

This tax-free status applies automatically to the vast majority of homeowners in the United Kingdom. As long as you lived in the residence as your primary home throughout your ownership, you have no tax to report or pay. If you meet all the relief requirements, no action is required when submitting your annual tax details.

## What is Private Residence Relief and do you qualify?

Private Residence Relief is a statutory UK tax relief that exempts individuals from paying Capital Gains Tax when they sell their primary home. This relief ensures that individuals can move houses without their primary residential equity being eroded by tax.

To qualify for full 100% tax relief upon selling your property, you must meet all five core criteria outlined by HM Revenue and Customs:

- The property must be your only or main home throughout your entire period of ownership.
- You must have lived in the property as your primary residence without any long periods of absence.
- No part of the home can have been used exclusively for business purposes during your ownership.
- The total area of the garden and grounds must be under 0.5 hectares in total size.
- You did not purchase the property solely to make a quick financial profit from a rapid resale.

## When do you only get partial Capital Gains Tax relief?

You only get partial tax relief when your home stops being your primary residence or is used for other activities. When this happens, HM Revenue and Customs charges tax on a portion of the gain.

Common situations that lead to partial tax liability include letting the property to tenants during your ownership. Under section 223 of the Taxation of Chargeable Gains Act 1992, using a room exclusively for business operations also invalidates full tax-free status. Additionally, moving out of the property long before the final sale or owning multiple homes simultaneously will restrict your relief.

### How is partial Private Residence Relief calculated?

Partial relief is calculated on a strict time-apportionment basis, which divides your qualifying months by total ownership months. HM Revenue and Customs grants full relief for the actual time you lived there, plus the final 9 months of ownership.

To calculate your taxable gain, apply these steps to your property transaction:

1. **Calculate your total gain:** Deduct your original purchase price and buying costs from the final selling price.
2. **Determine your qualifying months:** Count the actual months you lived in the home and add the final 9 months of ownership.
3. **Calculate your tax-exempt fraction:** Divide your total qualifying months by your total months of property ownership.
4. **Apply the fraction to the gain:** Multiply your total gain by this fraction to find your exempt amount.
5. **Identify the taxable balance:** Subtract the exempt amount and your £3,000 annual exemption to find the taxable gain.

For example, if you make a £200,000 gain over 10 years (120 months) but only lived there for 3 years (36 months), your qualifying total is 45 months. The exempt fraction is 37.5%, making £75,000 exempt. The remaining £125,000 is subject to tax, minus your annual allowance.

## What are the Capital Gains Tax rates on property for 2026/27?

The Capital Gains Tax rates on residential property for the 2026/27 tax year are 18% and 24%. The rate you pay depends entirely on your total taxable income and the size of the taxable gain.

Before applying these rates, you can deduct the annual exempt amount. For the 2026/27 tax year, this tax-free allowance is £3,000 per person.

| Income Tax Band | Residential Property CGT Rate |
| --- | --- |
| Basic Rate Taxpayer | 18% |
| Higher or Additional Rate Taxpayer | 24% |

## How and when do I report and pay property CGT to HMRC?

You must report and pay any property Capital Gains Tax within 60 days of completion of the sale. Failing to meet this legal deadline results in immediate interest charges and late filing penalties.

The process must be completed online through the official government portal, following these sequential steps:

1. Create or sign in to your Capital Gains Tax on UK property account on the official government website.
2. Gather your original purchase documents, improvement costs, and selling paperwork.
3. Calculate your exact taxable gain using your income details to determine your tax rate.
4. Submit the online return detailing your gain and calculations within 60 days of the completion date.
5. Pay the tax bill securely online using your unique payment reference number provided by the system.

### What is the 9-month rule for Private Residence Relief?

The 9-month rule dictates that the final 9 months of homeownership are always counted as tax-exempt qualifying months, provided you lived in the property as your primary residence at some point. This rule protects sellers who have already moved into a new home while trying to sell their old one.

### Do I have to pay Capital Gains Tax if I lived in my property but rented it out?

Yes, you generally have to pay tax on the proportion of the gain that relates to the period the property was rented out. While Private Residence Relief covers the time you resided in the home, the periods of letting are taxable and must be declared to HMRC.

### How do I nominate a property as my main residence for CGT purposes?

You can nominate a property as your main residence by writing to HM Revenue and Customs within two years of acquiring a second home. This nomination allows dual-property owners to choose which home receives the tax relief upon a future sale.

### Are garden offices or outbuildings subject to Capital Gains Tax?

Yes, if an outbuilding or garden office is used exclusively for business purposes, it is subject to Capital Gains Tax when you sell. You must divide the gain between the residential part of your home and the commercial workspace.