How UK Principal Private Residence Relief Works

Principal Private Residence Relief removes Capital Gains Tax from the profit on selling your home, so long as the property was your only or main residence for the whole time you owned it.¹ When it applies in full, the relief is automatic: you don’t file anything, you don’t claim anything, you simply owe nothing. Where it only covers part of the ownership period or part of the property, the leftover gain is taxed at 18% or 24% depending on your income band.²

When the Relief Fully Applies

The rule at Section 222 of the Taxation of Chargeable Gains Act 1992 is short: the property has to have been your only or main residence during your ownership.³ Move in the day you complete, live there as your home, sell it, and the whole gain drops out of tax.

HMRC does test whether the occupation was genuine. Courts have looked at the “quality of occupation” in disputed cases, asking whether the person lived there with enough permanence and continuity to make it a real home. A handful of nights spent in a property that was really an investment is the sort of arrangement HMRC challenges.

The garden and grounds are covered too, up to 0.5 hectares (roughly 1.2 acres) including the footprint of the house.³ Beyond that, you can still claim on the excess if the extra land was needed for the reasonable enjoyment of the house given its size and character. A modest semi on five acres of paddock will draw more scrutiny than a large country house on the same land.

Absences That Still Count as Occupation

Life doesn’t always allow uninterrupted occupation, and Section 223 treats several kinds of absence as if you were still at home.⁴ For most, the condition is that you lived in the property before the absence and returned to it afterwards.

Absences for any reason, in any combination, totalling up to three years.⁴
Any period spent working abroad as an employee, with no time limit.
Up to four years spent working elsewhere in the UK where the workplace was too far to live in the property, or the employer required you to live elsewhere for the effective performance of your duties.⁵

These stack. Someone who lived in the property, went abroad on employment for six years, came back, then moved away for personal reasons for another two years can potentially cover both gaps under their respective categories.

On top of these, the final nine months of ownership always count as occupation, provided the property was your main home at some point.⁴ That final period is what saves people who have already moved into their next home while waiting for the old one to complete.

Job-Related Accommodation

If you live in accommodation tied to your job while owning a home you plan to return to, your own property is treated as occupied throughout that period.⁶ The accommodation has to be necessary for your duties, customary for the type of work, or part of special security arrangements. Armed forces personnel receiving accommodation allowances also qualify. Letting your property out during the absence doesn’t automatically break the treatment, though a long lease running well past any realistic return date may lead HMRC to conclude you never intended to move back. Directors of the company providing the accommodation generally can’t use this rule unless their stake is insignificant.

If You Own More Than One Home

Only one property can qualify as your main residence at a time. You choose which by writing to HMRC nominating the address, signed by every owner.⁷ You have two years from the date your combination of homes changes to make the nomination. Miss that and HMRC decides on the facts, which may not go your way.

You can vary the nomination later, and some people deliberately switch it between properties for short periods to spread partial relief across both before selling. That’s legitimate, but the dates of each nomination feed directly into the partial-relief calculation, so records matter. An overseas property can only be nominated for a tax year in which you spent at least 90 days there, a rule that has applied since 6 April 2015.⁷

Married couples and civil partners living together share a single main residence between them.³ If each of you owned a home before the relationship was formalised, you have two years from the date of the marriage or civil partnership to jointly nominate which one counts.⁸ Failing to nominate hands the decision to HMRC.

When Only Part of the Gain Is Covered

Where the relief only covers part of your ownership, the exempt fraction of the gain is worked out as the qualifying period (actual occupation plus any deemed occupation, plus the final nine months) divided by the total period of ownership. Whatever remains is taxable.

Using part of your home exclusively for business also chips away at the relief. The word doing the work is “exclusively.” A spare room that doubles as an office and a guest bedroom generally won’t trigger a restriction; a garage converted into a full-time commercial studio will. Where a restriction applies under Section 224, the gain is split by the fraction of the property given over entirely to the business use.⁹ If a photography studio occupied roughly 20% of the floor area, about 20% of the gain loses PPR cover.

A change in use partway through ownership adjusts the sum in two dimensions at once. Five business years out of twenty, in a fifth of the floor area, means only that time-and-space slice sits outside the relief. Where the calculation gets involved, professional advice earns its fee.

Lettings Relief Now Covers Only Live-In Landlords

Lettings relief still exists but is far narrower than it used to be. Since April 2020, it only applies where you let out part of your home while continuing to live in another part of the same property.¹⁰ Renting the whole house out while you live elsewhere no longer qualifies, however briefly. Where the relief does apply, it’s the lowest of the PPR already calculated, £40,000, or the gain attributable to the letting. In practical terms it now mainly helps people who take in a lodger.

Reporting and Paying if Any Tax Is Due

UK residents whose sale is fully covered by PPR have nothing to report.¹ It’s only when part of the gain is taxable that the reporting rules bite.

The 60-Day Deadline

You have 60 days from the date of completion to report the disposal and pay the tax.¹¹ Reporting is done through HMRC’s online Capital Gains Tax on UK property service via a Government Gateway account.¹² You’ll need the acquisition and disposal dates, both prices, deductible costs, and a record of when the property was your home versus any periods away.

Missing the deadline brings an immediate £100 fixed penalty.¹³ After three months, daily £10 penalties start running for up to 90 days. At six months a further £300 or 5% of the tax due (whichever is higher) is added, and the same again at twelve months. Interest runs on the unpaid tax from day one. If your final figures aren’t ready, an estimated return filed on time and amended later is much cheaper than silence.

If You Also File Self Assessment

The 60-day property return doesn’t replace Self Assessment. If you already file one, the disposal also goes into the Capital Gains section of your annual return for the tax year in which the sale completed.¹¹ Tax paid through the 60-day return is credited against the Self Assessment liability, so nothing is paid twice.

Non-Residents Must Report Even With Full Relief

If you’re not a UK resident, the rule is stricter. You have to file the 60-day return whether or not any tax is due, whether or not you made a loss, and even where the property was your main home.¹⁴ The automatic no-return position for a fully-covered home applies to UK residents only. Where a Government Gateway account isn’t available (for example, because you have no National Insurance number), HMRC provides an alternative sign-in using an email address, or a paper route.

1
GOV.UK. Tax When You Sell Your Home: Private Residence Relief
2
GOV.UK. Capital Gains Tax Rates and Allowances
3
Legislation.gov.uk. Taxation of Chargeable Gains Act 1992 – Relief on Disposal of Private Residence
4
Legislation.gov.uk. Taxation of Chargeable Gains Act 1992 – Section 223
5
HM Revenue & Customs. Capital Gains Manual – Private Residence Relief: Periods of Absence: Introduction
6
HM Revenue & Customs. Capital Gains Manual – Private Residence Relief: Two or More Residences: Job-Related Accommodation
7
GOV.UK. Tax When You Sell Your Home: Nominating a Home
8
HM Revenue & Customs. Capital Gains Manual – Private Residence Relief: Only or Main Residence: Two or More Residences: Nominations on Marriage or on Registering as Civil Partners
9
HM Revenue & Customs. Capital Gains Manual – Private Residence Relief: Non-Residential Use and Letting
10
GOV.UK. HS283 Private Residence Relief
11
GOV.UK. Report and Pay Your Capital Gains Tax: If You Sold a Property in the UK
12
GOV.UK. Report and Pay Your Capital Gains Tax
13
GOV.UK. Penalties for Failure to File Returns on Time
14
GOV.UK. Tell HMRC About Capital Gains Tax on UK Property or Land if You’re Not a UK Resident