Selling your home is one of life’s biggest financial events. For most homeowners, the good news is that any profit made on the sale may be entirely free from Capital Gains Tax (CGT), thanks to a powerful relief known as Private Residence Relief (PRR). Understanding how PRR works, who qualifies, and when it might be restricted can save you thousands of pounds and prevent costly mistakes.
What Is Private Residence Relief?
Private Residence Relief (PRR) also referred to as Principal Private Residence Relief (PPR) or main residence relief is an exemption that reduces or eliminates Capital Gains Tax on the profit made when selling your home.
Rather than deferring a tax liability to a later date, PRR works by directly exempting a proportion (or all) of the gain from CGT altogether. It applies automatically to the disposal of a “dwelling house” that is, or has been, an individual’s only or main residence.
The relief is available to individuals, trustees of settled property, and personal representatives. Companies, however, are not entitled to claim it.
Who Qualifies for Private Residence Relief?
To be entitled to full PRR, the following conditions must all be satisfied:
- The property is a dwelling house (house, flat, houseboat, or fixed caravan) that has been your only or main residence throughout your entire period of ownership
- You have not been absent during the ownership period, other than during an allowed period of absence or while living in job-related accommodation
- The garden or grounds, including all buildings, do not exceed half a hectare (approximately 5,000 square metres)
- No part of the property has been used exclusively for business purposes at any time during ownership
- You did not acquire the property primarily to make a financial gain
If all of these conditions are met, the full gain on disposal is exempt from CGT and there is nothing further to report.
Partial Relief
Where only some of the conditions above are satisfied, you may still be eligible for partial PRR. In this case, the exempt portion of the gain is calculated based on the proportion of time the property was occupied as your main residence compared to the total period of ownership.
How Is PRR Calculated?
The basic formula for calculating Private Residence Relief is:
Total Gain × (Period of Occupation ÷ Period of Ownership) = Private Residence Relief
The period of ownership begins on the date of completion of purchase and ends on the date of disposal. “Occupation” for these purposes includes both actual occupation (when you physically lived there) and deemed occupation (periods when you are treated as living there under HMRC rules).
The Final Nine Months
One of the most valuable features of PRR is the final nine-month rule. The last nine months of your ownership period always qualify as deemed occupation, regardless of how the property is actually used during that time — provided the property has been your main residence at some point in the past. For disabled individuals or those in long-term residential care, this final exempt period is extended to 36 months.
Calculation Example
You purchased a property in January 2009 and sold it in January 2025, a period of 192 months. You lived in it as your main residence for all but nine months in 2011. That means 183 months of qualifying occupation. The PRR-exempt gain is calculated as 183 ÷ 192 of the total gain.
Allowed Periods of Absence
Certain periods when you were not living in the property can still count as deemed occupation, reducing any CGT liability. These qualifying periods of absence are:
- Any reason: absences totalling no more than 3 years in all
- Employment abroad: absence of any length, provided all employment duties were carried out outside the UK
- Work relocation: absences of up to 4 years when your employer requires you to work away from home
An important condition applies to all the above: the absence must generally have been both preceded and followed by actual occupation of the property as your only or main residence. However, if your employment prevents you from returning, this condition may be waived for the work-related absences.
Delay in Moving In
If you buy a property that needs major renovation or construction, and you move in within two years of purchase, the period before you moved in may be treated as deemed occupation, giving you full relief from day one.
Owning More Than One Property
If you own more than one property at the same time, you can only have one designated main residence for PRR purposes at any given time.
Making a Nomination
You may nominate any one of your properties as your main residence by writing to HMRC. The nomination must be made within two years of the date you first acquired a combination of residences, or within two years of any change in your combination of properties.
Critically, the property you nominate does not have to be the one you spend the most time in. For tax planning purposes, it is often beneficial to nominate the property likely to generate the largest future capital gain.
Spouses and civil partners who live together can only have one main residence between them.
Lettings Relief
If you have let part of your main residence as residential accommodation, you may be entitled to claim Lettings Relief on top of PRR. However, since April 2020, this relief is only available where you (the owner) share occupancy of the property with the tenant.
Where available, Lettings Relief is capped at the lowest of:
- The amount of PRR already calculated
- £40,000
- The amount of chargeable gain arising from the letting
Business Use of Your Home
Using part of your home exclusively for business reduces your PRR entitlement. The gain must be apportioned between the business element (which is chargeable to CGT) and the residential element (which qualifies for relief). Working from home in a room that is also used for personal purposes will not restrict PRR — only exclusive business use of a dedicated space is affected.
Reporting and Payment Deadlines
If your gain is not fully covered by PRR and CGT is due, you must submit a Land Return to HMRC within 60 days of completion and pay the CGT owed at the same time. This tight deadline applies even if you also complete an annual Self Assessment tax return.
For the 2025/26 tax year, CGT rates on residential property are 18% for basic-rate taxpayers and 24% for higher and additional-rate taxpayers. The annual CGT exempt amount is £3,000 per individual.
How Property Tax Accountant Can Help
Navigating Private Residence Relief is rarely straightforward. Periods of absence, multiple properties, partial lettings, and business use can all affect how much relief you receive — and getting it wrong can result in unnecessary tax charges or HMRC penalties.
Property Tax Accountant specialises in exactly these situations. Our expert team of UK-based property tax accountants can:
- Assess your full eligibility for PRR and identify deemed occupation periods you may have overlooked
- Review your nomination strategy if you own more than one property, ensuring the election works in your favour
- Calculate your precise PRR entitlement and any available Lettings Relief accurately and compliantly
- Prepare and submit your 60-day CGT return to HMRC within the strict deadline following completion
- Advise on tax planning opportunities before you sell, to maximise your relief and reduce your CGT exposure
Whether you are selling your family home, a property you have not always lived in, or a former buy-to-let you once occupied, our team provides clear, personalised advice to help you keep more of your money. Get in touch with Property Tax Accountant today for a consultation.
Frequently Asked Questions
What is Private Residence Relief and do I qualify automatically?
PRR is a CGT exemption on the sale of your main home. It applies automatically if the property has been your only or main residence throughout your period of ownership and all other qualifying conditions are met. No formal claim is required for full relief, but you must complete the Capital Gains Tax pages of your tax return if only partial relief applies.
What happens if I have not lived in the property for the full period of ownership?
You will receive partial relief based on the proportion of time you occupied the property as your main residence, plus any qualifying periods of deemed occupation and the final nine months of ownership.
Can I claim PRR if I rented out part of my home?
Yes, but your PRR will be restricted to the portion you occupied yourself. You may also be able to claim Lettings Relief on the let portion, though since April 2020 this is only available where you lived in the property at the same time as the tenant.
What is the 60-day reporting rule?
If CGT is due after PRR has been applied, you must report the gain and pay any tax owed to HMRC within 60 days of the completion date of the sale.
Can I nominate which property is my main residence?
Yes. If you own more than one property, you can write to HMRC to nominate your preferred main residence. The nomination must be made within two years of acquiring a new combination of residences.
What are the current CGT rates on residential property?
For the 2025/26 tax year, CGT on residential property is charged at 18% for basic-rate taxpayers and 24% for higher or additional-rate taxpayers. The annual CGT-free allowance is £3,000 per individual.
Does PRR apply to non-UK residents?
Non-UK residents selling UK residential property must report any disposal to HMRC within 60 days of completion, regardless of whether tax is due. PRR may still be available but is subject to additional residency conditions, including meeting specific overnight-stay tests.
