How to Calculate Private Residence Relief: A Step-by-Step Guide
Understanding your private residence relief calculation is essential when selling a home that has been your only or main residence. Private Residence Relief (PRR), also called PPR relief, can reduce or eliminate the Capital Gains Tax (CGT) due on a qualifying gain.
When you sell a property that has been your main home throughout your ownership, you will usually receive full relief from Capital Gains Tax. However, calculating private residence relief can be more complex if you have moved out, let the property, owned more than one home, used part of it exclusively for business, or had periods away from the property.
This guide explains how to calculate Private Residence Relief, including the PRR formula, qualifying occupation periods, a worked example, absence rules, Lettings Relief, reporting requirements and the records you should retain.
Who Can Claim PPR Relief?
To qualify for full PPR relief, the property must normally have been your only or main home for the entire period of ownership. Other factors can also affect the claim, including whether you let part of the property, used part of it exclusively for business, bought it mainly to make a gain, or had grounds exceeding the permitted area.
Married couples and civil partners can generally have only one main residence between them for PRR purposes at any one time. If you own more than one home, the facts of your occupation matter, and in some situations a formal main-residence election may be available.
How to Calculate Private Residence Relief
To calculate private residence relief, first work out your total gain. Then identify the periods that qualify as occupation and divide them by your total ownership period. The resulting fraction is applied to the gain.
Private Residence Relief calculation:
PRR = Total gain × (Qualifying occupation period ÷ Total ownership period)
Before applying the formula, calculate the total gain:
Total gain = Sale proceeds − purchase price − allowable buying, selling and improvement costs
Allowable costs may include legal fees, estate-agent fees, Stamp Duty Land Tax, and qualifying capital improvement costs. Routine repairs and maintenance are generally not deducted from the gain.
What Counts as a Qualifying Occupation Period?
The qualifying period used when calculating private residence relief can include:
- Periods when the property was your only or main residence;
- The final nine months of ownership, where the conditions for final-period relief are met;
- Eligible periods of absence; and
- In some cases, periods during which you were unable to occupy the property because it was being rebuilt or renovated.
Private Residence Relief Calculation: Worked Example
Sarah buys a property in April 2013 for £250,000. She lives there as her main home until April 2019, a period of six years. She then moves out and lets the property before selling it in April 2025, six years later.
- Sale price: £520,000
- Purchase price: £250,000
- Allowable costs: £15,000
- Total gain: £255,000
- Total ownership period: 144 months
Sarah’s qualifying occupation period is:
- Actual occupation as her main residence: 72 months
- Final-period exemption: 9 months
- Total qualifying occupation: 81 months
PRR = £255,000 × (81 ÷ 144)
PRR = £143,437.50
Her gain remaining after PRR is therefore £111,562.50. She may then deduct her available annual exempt amount before calculating the CGT due at the applicable residential-property CGT rate.
This example illustrates why it is important to calculate private residence relief carefully. The amount of relief depends on accurate ownership dates, occupation dates, allowable costs and any periods that qualify despite absence.
Note: Because Sarah moved out completely before letting the property, Lettings Relief is unlikely to apply under the post-April 2020 rules.
How Qualifying Absence Periods Affect Private Residence Relief
Some periods when you did not live in the property can still count as qualifying occupation for PRR. These rules can make a material difference to your private residence relief calculation.
- Absence of up to three years in total for any reason, provided the property was your main residence before and after the absence;
- Absence of up to four years while working elsewhere in the UK, where employment conditions required you to live away; and
- Absence of any length while working overseas, where employment conditions required you to live abroad.
Usually, you must return to live in the property as your main residence after the absence. However, an exception may apply where employment prevents your return. Each case depends on the facts, so retain evidence such as employment contracts, employer letters and tenancy records.
These rules can increase the qualifying occupation period and reduce the taxable gain.
Lettings Relief
Lettings Relief is now much more limited than it was previously. For disposals from April 2020 onwards, it generally applies only where you shared occupation of the property with your tenant.
For example, you may be eligible if you rented out part of your home while continuing to live there. It will not normally be available where you moved out and let the entire property to tenants.
Where it applies, Lettings Relief is limited to the lowest of:
- £40,000 per owner;
- The amount of Private Residence Relief available; and
- The gain attributable to the letting period.
Joint owners may each qualify for relief, subject to their individual circumstances.
Other Factors That Can Reduce PRR
Using Part of Your Home for Business
If part of your home was used exclusively for business purposes, the gain relating to that area may not qualify for full relief. Occasional or temporary home working does not normally amount to exclusive business use, but a dedicated business area may affect the calculation.
Letting Part of the Property
Letting part of your home can affect the relief available, although taking in a lodger does not necessarily prevent full PRR. The position depends on how the property was occupied and whether there was shared residence.
More Than One Home
If you have more than one residence, identifying your main home is particularly important. A nomination may be possible where you genuinely occupy more than one property as residences, but the deadline and circumstances should be considered carefully.
The 60-Day Reporting Requirement
If you sell a UK residential property and CGT is payable, you will normally need to report the disposal and pay an estimate of the tax within 60 days of completion. This can apply even where PRR substantially reduces the gain but does not eliminate it completely.
The property disposal may also need to be included on your Self Assessment return where you are required to file one. Reporting requirements can vary according to your residence status and whether tax is due, so it is wise to review the position promptly after exchange and completion.
Records to Keep for a Private Residence Relief Calculation
Good records make it easier to support your PRR claim and calculate the gain accurately. Keep:
- Purchase and sale completion statements;
- Legal, estate-agent and improvement invoices;
- Dates of occupation, moving out and any letting periods;
- Evidence that the property was your main residence, such as utility bills, bank statements, council-tax records and electoral-roll registration;
- Tenancy agreements and letting records; and
- Evidence supporting qualifying absences, including employer correspondence where relevant.
Records should generally be retained for the relevant HMRC record-keeping period. If your circumstances are complex, keep the documents for longer in case a future query arises.
Case Study: Calculating Private Residence Relief When Letting a Former Home
Olivia, a property investor, visited our Fulham office before selling a flat that had once been her main home. She had lived there for four years, moved to another property, and let the flat to tenants for the following five years. She wanted to understand how much Capital Gains Tax might be due and whether the years of letting meant she had lost all Private Residence Relief.
We reviewed her purchase and sale documents, legal fees, estate-agent costs and the dates she lived in the flat. After allowable costs, her total gain was £180,000 over 108 months of ownership.
Her qualifying occupation period was:
- Actual occupation as her main residence: 48 months
- Final-period exemption: 9 months
- Total qualifying period: 57 months
Her Private Residence Relief calculation was:
£180,000 × (57 ÷ 108) = £95,000 PRR
This left a gain of £85,000 before any available annual exempt amount and the relevant residential-property CGT rate were considered.
Olivia had expected Lettings Relief to reduce the remaining amount. However, because she had moved out and let the entire flat, it was unlikely to apply under the current rules. She also learned that, where tax is due, the sale normally needs to be reported and an estimated payment made within 60 days of completion. Keeping clear evidence of occupation dates and allowable costs made the calculation much easier to support.
