Capital Gains Tax Relief
The 36 month rule for capital gains tax on property
If you have ever lived in a property as your main home, the final period of ownership may be exempt from Capital Gains Tax when you sell. This guide explains how the 36 month rule works, why it changed in 2020, and what it means for you today.
Tax rules around property can feel overwhelming, especially when you are dealing with an inherited home or a property you have moved out of. We are here to help you understand your options. Please remember that this guide provides general information only - always speak to a qualified tax adviser before making financial decisions.
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The Basics
What is the 36 month rule for capital gains tax?
The 36 month rule is the commonly used name for the final period exemption within Private Residence Relief (PRR). Put simply, if a property was your main home at any point during your ownership, the last portion of your ownership is automatically exempt from Capital Gains Tax - even if you are no longer living there when you sell.
The name comes from the original version of this relief. Before April 2014, the final period exemption covered the last 36 months (3 years) of ownership. This gave property owners a generous window to sell without CGT applying to that final period, which was particularly helpful for people who had moved out of a property but had not yet sold it.
However, this rule has been significantly reduced over the years. Understanding the current position - and the exceptions where 36 months still applies - is essential if you want to make the most of the relief available to you.
Key Change
The rule changed in April 2020 - from 36 months to 9 months
Important: The 36 month period no longer applies to most people
Since 6 April 2020, the standard final period exemption has been 9 months, not 36 months. Many online sources still refer to the old 36 month rule, which can be misleading. Make sure you are working with the current figures.
The final period exemption has been reduced twice since the original 36 month rule was introduced. Here is how the timeline breaks down:
36 months
Before April 2014
The original final period exemption gave owners a full 3 years of CGT-free ownership at the end
18 months
April 2014 to March 2020
The exemption was halved to 18 months as part of wider CGT reform measures
9 months
April 2020 onwards (current)
The current standard final period exemption for most property owners
Who still gets 36 months?
Two groups of people still benefit from the full 36 month final period exemption:
- • Disabled individuals - as defined under HMRC's qualifying conditions
- • Care home residents - people who have moved into a care home and are selling their former main residence
If you or a family member falls into either of these categories, the extended 36 month exemption can provide significant tax savings. A qualified tax adviser can confirm whether the conditions are met and help you plan accordingly.
Inherited Property
How the 36 month rule relates to inherited property
When someone passes away and leaves a property to their beneficiaries, Capital Gains Tax may apply if the property is later sold for more than its probate value (the market value at the date of death). The final period exemption can play an important role in reducing or eliminating this tax liability, depending on the circumstances.
If the deceased lived in the property as their main residence, the personal representatives (executors or administrators) may be able to claim Private Residence Relief. Where the property is sold within two years of death, this can eliminate CGT entirely. The final period exemption is a separate but related relief that adds further protection.
For beneficiaries who inherit a property and then move into it as their own main home, the final period exemption becomes directly relevant. If you later move out and sell, the last 9 months of your ownership are automatically exempt from CGT. If you are disabled or in a care home, you benefit from the full 36 months instead.
Deceased lived in the property
If the deceased used the property as their main home, PRR may apply when the personal representatives sell within 2 years of death. The final period exemption provides additional cover if you, as the beneficiary, move in and later sell.
Beneficiary moves in then sells
If you inherit a property and make it your main home, you get PRR for the time you live there plus the 9 month final period exemption when you move out and sell. This can significantly reduce any CGT liability.
Property was not the deceased's home
If the property was a buy-to-let or second home, PRR will not apply based on the deceased's use. You could still claim PRR (and the final period exemption) if you move into the property as your own main home before selling.
Deceased was disabled or in care
If the deceased was a disabled person or care home resident and the property was their main home, the extended 36 month final period exemption may apply, giving the estate more time to sell with CGT protection.
Understanding the Difference
The 2 year rule vs the 36 month rule
These two rules are often confused, but they serve different purposes and apply in different situations. Understanding how they interact is important for anyone selling an inherited property or a former main home.
2 year rule
Private Residence Relief on inherited property
- • Applies specifically to inherited property
- • Requires the deceased to have lived in the property as their main home
- • Property must be sold within 2 years of the date of death
- • Can eliminate CGT on the entire gain if conditions are met
- • The 2 year clock runs from date of death, not from when probate is granted
36 month rule (now 9 months)
Final period exemption
- • Applies to any property you have lived in as your main home
- • You must have used the property as your main residence at some point during ownership
- • The last 9 months of ownership are exempt (36 months for disabled/care home residents)
- • Covers a portion of the gain, not necessarily the whole amount
- • Applies automatically - no need for the property to be inherited
How they work together
If you inherit a property where the deceased lived as their main home, selling within 2 years may give you full PRR - meaning no CGT at all. If you also move in and later sell after moving out, the final period exemption provides an extra layer of protection. These reliefs can overlap and complement each other, but the calculations can be intricate. Professional tax advice is strongly recommended.
Practical Guidance
What this means when selling inherited property
Understanding the final period exemption and how it interacts with other reliefs can help you make better decisions about when and how to sell. Here are the key practical considerations.
Time is your most valuable asset
Whether you are relying on the 2 year PRR window or the 9 month final period exemption, delays cost money. Every month the property sits unsold is a month where values can change and relief windows can close. Planning your sale early gives you the best chance of maximising your tax position.
Get the probate value right
The probate value is the base cost for CGT. If the valuation is too low, the taxable gain when you sell will look larger than it should be. An accurate probate valuation protects you from paying more CGT than necessary and provides a solid foundation for any relief calculations.
Consider who sells the property
If the personal representatives sell the property before distributing the estate, any CGT liability falls on the estate. If the property is transferred to a beneficiary first, the beneficiary is responsible for CGT. Each route has different implications for reliefs and allowances - your tax adviser can help decide the best approach.
Keep records of everything
HMRC may ask for evidence of when you lived in the property, what improvements you made, and what costs you incurred. Keep receipts, correspondence, and records of your residence history. Good record-keeping makes claiming reliefs smoother and provides protection if HMRC queries your return.
Check for multiple reliefs
You may be eligible for more than one relief. Private Residence Relief, the final period exemption, your annual CGT allowance, and deductible expenses can all work together to reduce or eliminate your tax bill. A qualified adviser can identify every relief available to you.
Report within 60 days
If you sell a UK residential property and there is a chargeable gain, you must report it to HMRC and pay the CGT within 60 days of completion. This deadline applies even if reliefs reduce the gain to zero - you may still need to file. Missing this deadline can result in penalties and interest.
Speed Matters
How selling quickly to a cash buyer helps maximise tax relief
When CGT relief depends on selling within specific timeframes, the speed and certainty of your sale becomes critically important. A traditional property sale through an estate agent can take 4 to 6 months or longer, with no guarantee of completing on time. For inherited property where the 2 year PRR window or the final period exemption is at stake, that uncertainty can cost you thousands in avoidable tax.
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At housebought4cash.com, we understand the time-sensitive nature of selling inherited property. We can make you a fair cash offer within 24 hours and complete the purchase in as little as 7 to 14 days once probate has been granted. There is no chain, no estate agent fees, and no need to make repairs or clear the property first.
Selling quickly does not just help with CGT relief windows. It also stops the ongoing costs of holding an empty property - council tax, insurance, maintenance, and the worry that comes with looking after a home that is sitting vacant. We know this is a difficult time, and we are here to make the process as straightforward and stress-free as possible.
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Frequently Asked Questions
36 month rule and final period exemption - your questions answered
The final period exemption and its interaction with other CGT reliefs can raise many questions. Here are clear answers to the most common ones we hear.
This page provides general information only and does not constitute tax, legal, or financial advice. Tax rules and rates are subject to change. Always consult a qualified tax adviser before making decisions about property and Capital Gains Tax. housebought4cash.com is a property buying company and does not provide tax advice.
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