Private Residence Relief: What Actually Qualifies

You Are Taxed on a Slice, Not All or Nothing

People selling a home they used to live in tend to expect one of two things: the whole gain is taxed, or none of it is. Neither is usually right. Private Residence ReliefPrivate Residence Relief: The relief that exempts the gain on your only or main home from Capital Gains Tax, for the time you lived there plus any part of a final period (9 months, or 36 if disabled or in care) your occupation did not already cover. (PRR - some accountants still call it principal private residence relief, or PPR) exempts a fraction of the gain: the part matching the time the property was your only or main home, plus a final period that always counts. The rest is taxable. So the real question is not "do I pay Capital Gains TaxCapital Gains Tax: Tax on the profit when you sell or dispose of an asset that has risen in value. On shares it is 18% or 24% in 2026/27, charged only on gains above the annual exempt amount.?" but "how much of my gain is actually sheltered?".

The arithmetic itself - how the fraction is applied, and how the taxable slice then splits across the 18% and 24% rates - is worked through with numbers in our guide to calculating CGT on property. This page answers the question that comes first: what makes the relief apply at all. That is where most of the money, and most of the mistakes, actually sit.

What Counts as Your "Only or Main Residence"

Full relief has four conditions, and the first is the one people skip: the property was your only or main residence throughout the time you owned it. On top of that, you had no absence beyond an allowed period, the garden and grounds are within the permitted areaThe garden and grounds covered by Private Residence Relief with the house: up to half a hectare (about an acre) automatically, and above that only the area needed for the reasonable enjoyment of the home., and no part of the home was used exclusively for business.

"Residence" means you genuinely lived there as your home, not that you owned it. This is where the most common false belief bites: owning only one property does not make it exempt. A flat you bought and let out, and never lived in, gets no Private Residence Relief even if it is the only property to your name. Relief follows occupation, not sole ownership. Equally, a spell of actual occupation with the quality of a real home counts even if it was not long - what matters is that it was your home, not a stopover to bank the relief.

Two Homes: You Can Choose, but Only for Two Years

If you have two or more residences at the same time - say a house you own and a flat you rent, or two homes you own - only one can be your main residence for relief at any moment. You are allowed to nominate which one. The catch is the clock: your nomination must be made within 2 years of the date you first have that particular combination of residences, and if the combination changes a fresh 2-year period begins.

Miss the window and you cannot simply pick later - it is then decided on the facts of where your life was actually centred, which may not be the answer you would have chosen. Married couples and civil partners get one main residence between them, so you cannot each shelter a different property. If two homes are in the picture, treat the nomination deadline as a live decision, not paperwork for later.

Absences That Still Count as Living There

You do not lose relief for every month you were away. Certain gaps are treated as deemed occupationPeriods away that still count as living in your home for Private Residence Relief - up to 3 years for any reason, up to 4 years kept away by work, or any length working wholly abroad - if it was your main residence before and after. and still qualify:

• Up to 24 months at the start, while you could not yet move in - for example you had not sold your old home, or the place was being built or refurbished.
• Absences for any reason totalling no more than 3 years.
• Up to 4 years where the distance from your work stopped you living at home, or your employer required you to work away.
• Any length of time while you were in employment with all your duties carried out outside the UK.

Every one of these (bar job-related accommodation) carries the same condition: the home has to have been your only or main residence both before and after the absence. Move out and never move back in, and the gap does not count - the relief clock stopped when you left. That single rule catches out most accidental landlords, who assume a former home keeps earning relief while it is let.

Your Garden: Half a Hectare, and a Timing Trap

Relief covers the house and its garden and grounds up to the permitted area, which is half a hectare - a little over an acre - including the footprint of the home, automatically. Above that size, only the area needed for the reasonable enjoyment of the home qualifies, and if HMRC and you disagree the District Valuer decides what that area is.

Two traps live here. First, there is no relief on garden or land you sell after you have already sold the house - once the home is gone the land is no longer part of your residence. Second, land you have fenced off or developed to sell separately is treated as a disposal in its own right, not part of your home. If part of a large plot might be sold on, the order and timing of the sales changes the tax.

Three Things People Get Wrong

The Property CGT Calculator handles the numbers once you know the rules. Before you reach for it, clear these three out of the way:

Once you know which months qualify, put your own figures into the Property CGT Calculator for the relieved fraction and the tax, and see our 60-day reporting guide for the deadline once a sale completes.

Sources: HMRC helpsheet HS283 (Private Residence Relief - the current-year edition); HMRC CG64986 (36-month final period); TCGA 1992 s.225E; GOV.UK Capital Gains Tax rates. Capital Gains Tax is not devolved: the rules here apply UK-wide.