# Do I Pay Capital Gains Tax When Selling My Main Home?

Most UK homeowners pay no Capital Gains Tax on their main home due to Private Residence Relief, but letting your property, business use, or second homes can trigger tax bills and strict 60-day HMRC reporting rules.

**Published:** 2026-07-03  
**Updated:** 2026-07-04  
**Source:** https://aztajournal.com/gb/capital-gains-tax-selling-home-2

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> Most UK homeowners pay no Capital Gains Tax when selling their main home due to Private Residence Relief. However, letting the property, using it for business, or owning multiple homes can trigger partial tax liabilities and strict 60-day HMRC reporting requirements.

## Key takeaways: CGT on UK residential property sales

1. Private Residence Relief automatically exempts most homeowners from paying Capital Gains Tax when selling their primary residence.
2. The relief applies fully if the property was your only home, has not been let out, and sits on a plot under 0.5 hectares.
3. Residential Capital Gains Tax rates for the 2025/26 tax year are set at 18% for basic rate taxpayers and 24% for higher or additional rate taxpayers.
4. Every individual receives an annual exempt amount of £3,000 to offset against taxable capital gains.
5. Any taxable residential property gain must be reported and paid to HMRC within 60 days of the sale completion date.

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

In the majority of cases, you do not have to pay Capital Gains Tax when you sell your main home because of a dedicated tax relief. This exemption is known as Private Residence Relief and applies automatically if you meet all standard residential conditions.

Under the Taxation of Chargeable Gains Act 1992, specifically sections 222 to 223, individuals are entitled to full relief from Capital Gains Tax upon disposing of their only or main residence. No formal claim is necessary to benefit from this relief if the property has been your actual home throughout the entire period of your ownership.

## What is Private Residence Relief (PRR)?

Private Residence Relief is a statutory UK tax relief that exempts individuals from paying Capital Gains Tax on the sale of their principal home. The relief ensures that homeowners can move between primary residences without facing tax charges on the growth in value of their property.

To secure full Private Residence Relief, you must satisfy several statutory criteria throughout your entire period of ownership. These conditions protect the relief for genuine owner-occupiers:

1. The property must have been your only or main residence for the entire duration of your ownership, or all but the final 9 months.
2. The total area of the garden and grounds must not exceed 0.5 hectares, unless a larger area is deemed necessary for the reasonable enjoyment of the property.
3. No part of the home can have been used exclusively for business or commercial purposes during your ownership.
4. You must not have let out any part of the property, excluding acceptable arrangements such as taking in a lodger under the Rent a Room Scheme.
5. The property must not have been acquired or renovated for the primary purpose of making a short-term financial gain.

## How do you calculate partial Private Residence Relief?

To calculate partial Private Residence Relief, you divide the total period of deemed and actual occupation by your overall period of ownership. This percentage represents the tax-exempt portion of the total gain realized from the sale.

The calculation relies on a specific ratio designed to isolate taxable periods from exempt periods. The mathematical formula used to determine your tax-exempt proportion of the gain is:

> (Months lived there as main home + final 9 months) ÷ Total months of ownership
>
> — Taxation of Chargeable Gains Act 1992, section 223

Any capital gain allocated to the remaining months outside this calculation is subject to UK Capital Gains Tax. Investors and individuals must calculate the precise number of months for both occupancy and total ownership to find their final taxable exposure.

## What common situations can trigger a CGT bill on your home?

Several common situations can restrict your eligibility for full Private Residence Relief and trigger a Capital Gains Tax bill on your property sale. These circumstances generally involve renting the property out, using spaces for business, or owning multiple residences.

| Trigger Situation | Impact on Private Residence Relief | Statutory Treatment & Allowances |
| --- | --- | --- |
| Letting out the property | Reduces the exempt proportion of the gain for the period the property was rented. | Letting relief of up to £40,000 may apply if you shared occupation with a tenant. |
| Exclusive business use | The specific portion of the home used solely for business does not qualify for relief. | Apportionment is required to separate residential and business gains. |
| Unexcused periods of absence | Absences where you did not live in the property may be treated as taxable periods. | Certain absences are ignored if you lived in the home before and after the absence. |
| Owning multiple properties | Only one property can benefit from Private Residence Relief at any given time. | You must nominate your main home within 2 years of acquiring a second property. |

## What are the UK Capital Gains Tax rates for residential property?

For the 2025/26 tax year, the UK Capital Gains Tax rates for residential property depend entirely on your personal Income Tax band. These rates are higher than the standard CGT rates applied to other assets like shares or business investments.

| Income Tax Band | Residential Property CGT Rate | Annual Exempt Amount |
| --- | --- | --- |
| Basic rate taxpayer | 18% | £3,000 (tax-free allowance) |
| Higher or additional rate taxpayer | 24% | £3,000 (tax-free allowance) |

The annual exempt amount of £3,000 is available to every individual to offset against their total capital gains in a single tax year. If your taxable gains fall below this £3,000 threshold, you do not owe any Capital Gains Tax.

## How and when do I report and pay CGT on property?

You must report and pay any Capital Gains Tax due on a UK residential property sale within 60 days of the completion date. This is a strict statutory deadline that requires immediate action following your property transactions.

To file your return and make your payment, you must use HMRC's online Capital Gains Tax on UK property service. This process is entirely separate from your annual Self Assessment tax return, though you must still declare the transaction there if you usually file one.

Failing to report your disposal or pay the calculated tax within this 60-day window can result in immediate late-filing financial penalties. HMRC will also apply daily interest charges on any unpaid tax amounts from the date the payment was originally due.

### What is the 60-day rule for Capital Gains Tax?

The 60-day rule requires UK taxpayers to report any taxable residential property gains and pay the Capital Gains Tax owed to HMRC within 60 days of the property sale's completion date.

### How does HMRC know if you have two homes?

HMRC tracks property transactions using Land Registry records, stamp duty declarations, and council tax databases, allowing them to identify when a taxpayer owns multiple residential properties.

### Can I claim PRR if I let out a room to a lodger?

Yes, you can still claim full Private Residence Relief if you let out a single room to a lodger, provided you continue to occupy the property and share the communal living spaces.

### How does working abroad affect my Private Residence Relief?

Under the Taxation of Chargeable Gains Act 1992, section 223, working abroad can qualify as an allowed period of absence. This period remains fully exempt from tax if you lived in the property as your main home both before and after your time overseas.