When siblings inherit property together, decisions about what to do with it can be straightforward, or they can become a source of real disagreement. This guide sets out the essential steps that must happen first, the options available to siblings inheriting property, and how to resolve disputes if they arise.
Getting the legal authority to act
Before any decisions about the property can be made, the person managing the estate (called the Personal Representative) usually needs to obtain a legal document that confirms their authority to act.
If the deceased left a valid will, that document is a grant of probate. If there was no will, it is letters of administration. Either document confirms the Personal Representative’s authority to manage the estate, including the inherited property.
Valuing inherited property for probate
Property often forms the largest part of an estate. The Personal Representative must ensure it is accurately valued, both for probate purposes and to calculate any tax due.
GOV.UK allows a property to be valued by an estate agent or a chartered surveyor. Where the estate is taxable or the figure is borderline, a Red Book valuation from a RICS-accredited surveyor is the most defensible option, because HMRC is more likely to challenge an informal appraisal. The valuation affects the amount of Inheritance Tax payable and, therefore, what each sibling ultimately receives.
Inheritance Tax and the inherited property
Inheritance Tax (IHT) is a tax on the estate of the person who died. The standard rate is 40% on the value of an estate above the £325,000 nil-rate band. Where the deceased was a homeowner passing the property to direct descendants, a residence nil-rate band of up to £175,000 may apply, giving a combined threshold of up to £500,000. The residence nil-rate band tapers away above a £2 million estate, reducing by £1 for every £2 over that threshold.
The Personal Representative must pay any IHT due before the estate can be distributed to beneficiaries. A common difficulty is that the available cash is tied up in the property itself. Before reaching for personal funds, check the routes that cost nothing. HMRC’s Direct Payment Scheme lets participating banks and building societies pay inheritance tax straight from the deceased’s accounts before the grant, and tax on land and buildings can be spread over ten annual instalments, with the first due at the end of the sixth month after death. Where those do not cover it, the Personal Representative may fund the tax personally and recover it from the estate, or arrange a probate loan. IHT can, therefore, have a direct bearing on what happens to an inherited property split between siblings.
Capital Gains Tax when selling inherited property
If siblings decide to sell the property, Capital Gains Tax (CGT) may apply. CGT does not arise at the point of inheritance. It arises only if the property is later sold for more than its probate value, the market value on the date of death. One caveat matters: the probate figure is only binding on HMRC where it was actually ascertained for inheritance tax purposes. In an estate where no inheritance tax was payable, HMRC is not bound by it and can challenge the base cost, so a deliberately low probate value inflates the eventual CGT bill rather than saving anything.
For the 2026/27 tax year, CGT is charged at 18% on gains within the basic-rate band and 24% above it. These are the general rates for individuals on all assets, not a residential-specific rate. The annual exempt amount is £3,000 per person.
Who sells makes a significant difference, and it is widely misunderstood. If the property is first assented to the siblings and they sell as owners, each has their own £3,000 exemption and their own rate band. If the personal representatives sell during the administration, the estate has a single £3,000 exemption, available only for the tax year of death and the two following tax years, and pays a flat 24%. Three siblings assuming three separate allowances and basic-rate banding on a sale by the executors will under-report.
If CGT is due when selling a UK residential property, you must usually report and pay it within 60 days of completion. Missing that deadline triggers an initial £100 penalty, followed by further penalties at six and twelve months of the greater of 5% of the tax due or £300 each time, plus interest on the unpaid tax.
Options for siblings inheriting property
When siblings inherit property, they broadly have three choices: sell it, have one or more siblings live in it, or rent it out to a third party. The right option depends on the siblings’ individual circumstances, the terms of the will, and the nature of the property.
Selling the inherited property
Selling is often the most straightforward route. It converts the asset into cash, giving each sibling a clear share of the proceeds. However, CGT may apply to any increase in value between the date of death and the date of sale, so taking tax advice before completing a sale is sensible.
Selling also draws a clear line under the estate, which can help where siblings have different financial needs or live in different parts of the country.
A sibling living in the inherited property
If a sibling already lives in the property or wishes to move in, this complicates the split. Typically, the resident sibling either buys out the other siblings’ shares or pays them rent on an ongoing basis. Both approaches require a clear, written agreement to avoid disputes later.
In some cases, the other siblings choose to gift their share of the property to the resident sibling. Anyone considering this should take advice on how to transfer property after death and on the tax implications of making a gift.
Clear communication at every stage is essential. Arrangements that seem straightforward at the outset can cause friction if they are not properly documented.
Renting out the inherited property to a third party
Renting the property can provide all siblings with a regular income. This works well where the property is in a good rental market and the siblings agree on how to manage it jointly.
However, becoming a landlord carries real responsibilities, and the rules changed significantly on 1 May 2026 when the main provisions of the Renters’ Rights Act 2025 took effect. Fixed-term assured tenancies are gone, all tenancies are periodic, and a tenant can end one with two months’ notice. Recovering possession in order to sell now relies on Ground 1A, which cannot be used in the first 12 months of a tenancy and requires four months’ notice, so letting the property can delay a sale by well over a year. Siblings who may want to sell in the near future should weigh that carefully before taking a tenant. Rental income from an inherited property is taxable, though allowable expenses such as maintenance and repairs can reduce the taxable amount. A tax adviser can help the siblings structure this efficiently.
Inheritance disputes between siblings
Disputes over inherited property are common. They can arise from disagreements about the interpretation of the will, differing views on the property’s value, or conflicting ideas about what to do next. A sibling already living in the property is a particularly frequent source of tension.
These disputes can stall the probate process and damage family relationships. Resolving them early, and amicably where possible, saves time and cost.
Proprietary Estoppel claims
Inherited property can give rise to Proprietary Estoppel claims. This legal doctrine applies where a person has been given an assurance that they would acquire a right over property, has relied on that assurance, and has suffered detriment as a result, such that it would be unconscionable for the promise to be gone back on. Unconscionability is the part most summaries leave out, and the Supreme Court in Guest v Guest confirmed that it is the starting question, with the remedy then aimed at fulfilling the promise, discounted where the beneficiary receives it earlier than expected.
In a probate context, this often arises from verbal promises. For example, a parent might assure one sibling that they will inherit the family home in return for providing care in old age. If the sibling gives up work to provide that care but the promise is never written into a will, a dispute becomes likely.
Mediation and legal resolution
Mediation is often the most practical first step when siblings cannot agree. A neutral mediator helps each party set out their position and works towards a mutually acceptable outcome, without the cost or formality of court proceedings.
If mediation fails, siblings may need to instruct a contentious probate solicitor. Court proceedings can resolve the position definitively, but they are expensive and slow, and they rarely improve family relationships. As a result, most solicitors encourage parties to exhaust alternative routes first.
The value of clear communication and written agreements
Written agreements between siblings are one of the most effective ways to avoid disputes. Siblings should set out clearly how decisions will be made, how costs will be shared, and what happens if one person changes their mind.
Any agreement reached should be documented formally, ideally with legal input. That record protects everyone and removes the risk of memory or interpretation differing over time.
Where siblings genuinely cannot agree on what to do with inherited property, professional probate advice can help them understand their options and reach a resolution that works for all parties.
Frequently asked questions
Do siblings have to agree before inherited property can be sold?
It depends on whether the property has been transferred to them yet. While it remains estate property, the personal representative can sell it without the beneficiaries’ consent: section 39 of the Administration of Estates Act 1925 gives personal representatives the powers of trustees of land, so one dissenting sibling cannot block a sale during the administration. Once the property has been assented to the siblings, they own it together and a sale does need all of them to agree. At that point a sibling who wants out can apply to court for an order for sale under section 14 of the Trusts of Land and Appointment of Trustees Act 1996. A contentious probate solicitor can advise on either situation.
What happens if one sibling wants to buy the others out?
A sibling who wishes to keep the property can buy the others out at an agreed value, usually based on an independent valuation. All parties should take independent legal advice before agreeing terms to ensure the transaction is properly documented and any tax implications are understood.
How is Capital Gains Tax calculated when siblings sell inherited property?
It depends who sells. If the property has been assented to the siblings and they sell as owners, each calculates CGT on their own share, applies their own £3,000 annual exempt amount, and pays 18% or 24% depending on their own income. If the personal representatives sell during the administration, the estate has one £3,000 exemption and pays a flat 24%. Either way the gain is the difference between the probate value and the sale price after allowable costs, and any tax due must be reported and paid within 60 days of completion.
Can siblings rent out inherited property without a formal agreement in place?
Technically they can, but doing so without a written co-ownership agreement carries significant risk. Disagreements about costs, rental income, and management responsibilities are far easier to resolve when the terms are set out in advance. Siblings should also make sure any tenancy complies with the Renters’ Rights Act 2025 regime that took effect on 1 May 2026, and take tax advice on reporting the rental income.
This article is for general guidance only and does not constitute legal, tax or financial advice. Rules and thresholds can change and every estate is different. For advice on your own circumstances, speak to a qualified professional. You can book a free legal consultation through The Probate Network.
