Quick answer
Severing joint tenancy may be beneficial for IHT planning when one spouse’s nil-rate band (currently £325,000 (gov.uk — Inheritance Tax)) is underutilised, though the tax position depends on your total estate value and the current IHT threshold rules applying in 2026/27. In England and Wales, converting joint tenancy to tenants in common typically allows each owner’s share to pass according to their will rather than automatically to the surviving spouse, potentially enabling better use of both parties’ nil-rate bands and the residence nil-rate band. However, severing is generally not advantageous for smaller estates below the combined thresholds, or where you wish to maximise survivor rights. This guide explains whether severing makes sense for your circumstances in 2026/27, the step-by-step process for severing in England and Wales, and common pitfalls to avoid.
Last reviewed: 24 May 2026 by the MP Estate Planning editorial team. Jurisdiction: England and Wales. Scotland and Northern Ireland have different probate and intestacy rules; the IHT thresholds are UK-wide.
Did you know that nearly 60% of UK homeowners own their property jointly, often defaulting to a joint tenancy arrangement? While this may be suitable initially, changing life circumstances can render this default structure inefficient for inheritance tax (IHT) planning.
As life evolves, so do your priorities. Whether it’s about inheritance planning or tax efficiency, there may come a time when this default option no longer suits your needs. We guide you through the process of severing the tenancy, helping you move towards a structure that aligns better with your personal, financial, and estate planning goals. For more information on the tax implications, visit our page on Inheritance Tax and Capital Gains Tax on Inherited.
Key Takeaways
- Joint tenancy may not always be the most suitable arrangement for IHT planning.
- Changing life circumstances can impact the efficiency of your property ownership structure.
- Severing joint tenancy can offer a more tax-efficient solution for inheritance planning.
- Professional guidance is crucial in navigating the process of severing tenancy.
- A more suitable ownership structure can better align with your personal and financial goals.
Understanding Joint Tenancy in the UK
For the 2026/27 position, see How to Use Form SEV to Sever Joint Tenancy in the UK for Tax and for further information from the MP Estate Planning UK editorial team.
When it comes to property ownership in the UK, understanding the nuances of joint tenancy is crucial for effective inheritance tax planning. Joint tenancy is a form of co-ownership where two or more individuals own a property together, with each person having an undivided interest in the entire property.
What is Joint Tenancy?
Joint tenancy means that all owners jointly own the entire property, and there are no separate shares. This form of ownership is often used by couples or family members who want to own a property together. One of the key characteristics of joint tenancy is the right of survivorship, which means that when one owner dies, their interest in the property automatically passes to the remaining owners.
Key Features of Joint Tenancy
The key features of joint tenancy include:
- Right of Survivorship: The property automatically passes to the surviving owners upon the death of one owner.
- Undivided Interest: Each owner has an undivided interest in the entire property.
- Four Unities: Joint tenancy requires the four unities – interest, title, time, and possession – to be present.
Differences Between Joint Tenancy and Tenancy in Common
Unlike joint tenancy, tenancy in common allows owners to have separate shares in the property, which can be unequal in size. Tenancy in common does not come with the right of survivorship; instead, when an owner dies, their share is passed according to their will or the laws of intestacy.
Understanding the differences between joint tenancy and tenancy in common is essential for making informed decisions about property ownership and inheritance tax planning in the UK. By choosing the right form of co-ownership, individuals can ensure that their property is distributed according to their wishes upon their death.
The Importance of Inheritance Tax (IHT)
Three rule changes you may need to consider (2026/27)
1. Pensions become subject to IHT from 6 April 2027. Most unused defined-contribution pension pots currently sit outside the estate for IHT — that ends on 6 April 2027 (gov.uk policy paper). HMRC estimates around 10,500 estates will face IHT for the first time as a result.
2. Business and agricultural property reliefs capped at £2.5m per person from 6 April 2026. Above the cap, only 50% relief applies — effective IHT of 20%. AIM shares dropped to 50% relief and do not use the £2.5m allowance (Saffery — APR/BPR reforms).
3. The NRB, RNRB and £2m taper threshold are frozen until 5 April 2031 following the 2024 and 2025 Budgets (gov.uk — NRB and RNRB freeze). With inflation, more estates will be pulled into IHT each year — a process commonly called “fiscal drag.”
The UK’s Inheritance Tax regime can significantly impact the assets passed to future generations. As we navigate the complexities of estate planning, understanding the implications of IHT is crucial for minimizing tax burdens and ensuring that your loved ones receive the maximum benefit from your estate.
Overview of Inheritance Tax in the UK
Inheritance Tax in the UK is a tax on the estate of someone who has passed away. The tax is levied on the total value of the deceased’s assets, including property, money, and possessions. For the 2023-2024 tax year, the standard Inheritance Tax rate is 40% on assets above the Inheritance Tax threshold of £325,000 per individual.
It’s worth noting that certain exemptions and reliefs can reduce the IHT liability. For instance, transfers between spouses or civil partners are generally exempt from IHT, and there are reliefs available for business and agricultural assets.
IHT Rates and Thresholds
The current IHT threshold is £325,000. If the total value of your estate is below this threshold, no IHT is payable. However, if your estate exceeds this threshold, the excess is taxed at 40%. There’s also an additional threshold, known as the Residence Nil Rate Band (RNRB), which applies if you leave your main residence to direct descendants. For the 2023-2024 tax year, the RNRB is £175,000 (gov.uk — RNRB).
- The standard IHT rate is 40% on assets above the threshold.
- The RNRB can increase the threshold for IHT purposes when leaving a main residence to direct descendants.
- Taper relief may apply if you make gifts within seven years of passing away.
The Impact of Estate Planning on IHT
Estate planning strategies, such as severing joint tenancy, can have significant implications for IHT liabilities. By severing a joint tenancy, individuals can ensure that their share of the property is passed according to their wishes, potentially reducing the IHT burden on their estate.
For example, if a couple holds a property as joint tenants, the entire property automatically passes to the surviving partner upon the first death. However, by severing the joint tenancy and holding the property as tenants in common, each partner can control their share of the property and potentially reduce the IHT liability upon the second death.

Effective estate planning requires a comprehensive understanding of IHT rules and how they apply to your individual circumstances. By making informed decisions, you can protect your assets and minimize the tax burden on your loved ones.
When to Consider Severing Joint Tenancy
Severing joint tenancy is a crucial step in estate planning, particularly when it comes to mitigating inheritance tax liabilities in the UK. As we navigate the complexities of joint ownership and inheritance tax, understanding the right moment to sever joint tenancy can significantly impact your estate’s future.
Key Scenarios Requiring Severance
There are several key scenarios where severing joint tenancy is advisable. These include:
- During divorce or separation, as it allows for a clearer division of assets.
- When there’s a desire to leave assets to different beneficiaries, such as children from previous marriages.
- In cases where one joint tenant wishes to gift their share to someone else, such as a family member.
- When planning for potential future care costs or other financial obligations.
Severing joint tenancy in these scenarios can provide greater control over your assets and how they’re distributed after your passing.
Benefits of Severing Joint Tenancy for IHT Planning
Severing joint tenancy can offer several benefits for inheritance tax planning. By converting to a tenancy in common, individuals can:
- Gain more control over their share of the property, allowing for more flexible estate planning.
- Potentially reduce the amount of inheritance tax payable upon their death.
- Ensure that their share of the property goes to their chosen beneficiaries, rather than automatically passing to the other joint tenants.
It’s essential to consider these benefits in the context of your overall estate planning strategy. By understanding when to sever joint tenancy, you can make more informed decisions about your assets and potentially mitigate IHT liabilities.
The Process of Severing Joint Tenancy
When it comes to managing your estate, severing joint tenancy can be an important consideration. Severing joint tenancy involves changing the way you and your co-owners hold a property, which can have significant implications for inheritance tax (IHT) planning.

Steps to Sever Joint Tenancy
To sever a joint tenancy, you need to follow a specific process:
- Serve a notice to the other joint tenants: This involves creating a statutory written notice to inform them of your intention to sever the joint tenancy.
- Update the ownership position: You will need to update the Land Registry to reflect the change in ownership structure.
- Record the severance: It’s essential to keep a record of the severance for future reference.
Legal Documents Required
The legal documents required for severing joint tenancy include:
- A statutory written notice: This is the formal document that notifies the other joint tenants of your decision to sever.
- Land Registry forms: You will need to complete the appropriate forms to update the property’s ownership details.
It’s crucial to ensure that all documents are correctly completed and filed to avoid any potential disputes or issues.
Timeframe for Completing the Process
The timeframe for severing joint tenancy can vary depending on several factors, including the complexity of the case and the speed at which all parties respond. Generally, you should allow several weeks to a few months for the process to be completed.
Seeking professional advice can help streamline the process and ensure that everything is handled correctly. We recommend consulting with a solicitor or property expert to guide you through the severance process.
Potential Drawbacks of Severing Joint Tenancy
Understanding the potential drawbacks of severing joint tenancy is essential for effective estate planning. While severing joint tenancy can offer benefits in terms of Inheritance Tax (IHT) planning, it’s crucial to consider the potential risks and financial implications.
Risks Associated with Joint Tenancy Severance
Severing joint tenancy can expose individuals to several risks. One of the primary concerns is the loss of automatic inheritance. When joint tenancy is severed, the right of survivorship is lost, meaning that upon the death of one tenant, their share will not automatically pass to the remaining tenants but will instead be distributed according to their will or the laws of intestacy.
Another risk is the potential for disputes among family members or co-owners. Severing joint tenancy can lead to complexities in managing the property, especially if the co-owners have different intentions or plans for the property.
Key Risks to Consider:
- Loss of automatic inheritance
- Potential for disputes among co-owners
- Increased complexity in property management
Financial Implications for Individuals
Severing joint tenancy can also have significant financial implications. For instance, it can affect the IHT liability of the estate. While severing joint tenancy can help reduce IHT in some cases, it can also lead to unforeseen tax consequences if not managed properly.
Additionally, severing joint tenancy may impact the ability to secure loans or mortgages on the property, as lenders may view the change in ownership structure as increasing the risk.

| Financial Consideration | Joint Tenancy | Tenancy in Common (After Severance) |
|---|---|---|
| IHT Liability | Automatic transfer to surviving tenant(s) | Share passes according to will or intestacy |
| Loan/Mortgage Security | Lenders may view as lower risk | Lenders may view as higher risk due to changed ownership structure |
It’s essential for individuals to carefully weigh these factors and consult with financial advisors or solicitors before making a decision.
Alternative Strategies for IHT Mitigation
When considering IHT planning, it’s essential to explore alternative strategies beyond severing joint tenancy. While severing joint tenancy can be beneficial, there are other approaches that can help mitigate Inheritance Tax liabilities.
Tenancy in Common as an Option
One alternative strategy is to consider tenancy in common. Unlike joint tenancy, tenancy in common allows co-owners to hold unequal shares of the property, providing more flexibility in estate planning. This can be particularly useful for individuals who wish to leave their share of the property to specific beneficiaries.
Tenancy in common also allows for more control over the distribution of assets upon death, as each co-owner’s share is considered part of their estate. This can help in reducing IHT liabilities by allowing for more targeted planning.
Gifts and Trusts for IHT Planning
Gifts and trusts are other effective strategies for IHT mitigation. Making gifts during one’s lifetime can reduce the value of the estate, thereby lowering IHT liabilities. Certain gifts are considered exempt from IHT, such as gifts to charities or gifts made more than seven years before the donor’s death.
Trusts can also play a crucial role in IHT planning. By placing assets in a trust, individuals can ensure that these assets are not considered part of their estate for IHT purposes. This can provide significant tax savings and help in achieving long-term estate planning goals.
Charitable Donations and Their Benefits
Charitable donations are another valuable strategy for reducing IHT liabilities. Donations to registered charities can be exempt from IHT, and individuals can also benefit from income tax relief on their charitable giving.
Moreover, charitable donations can be a meaningful way to leave a legacy while also achieving tax benefits. By including charitable donations in their estate plan, individuals can reduce the overall value of their estate, thereby reducing the amount of IHT payable.

The following table summarizes the key alternative strategies for IHT mitigation:
| Strategy | Benefits | Considerations |
|---|---|---|
| Tenancy in Common | Flexibility in share ownership, control over asset distribution | Co-owners must agree on shares and distribution |
| Gifts | Reduces estate value, potential IHT exemptions | Must be made more than 7 years before death to be fully exempt |
| Trusts | Assets not considered part of estate for IHT | Complex to set up, requires professional advice |
| Charitable Donations | IHT exemptions, income tax relief | Must be made to registered charities |
Tax Implications of Severing Joint Tenancy
When considering severing joint tenancy, it’s crucial to understand the tax implications that come with this decision. Severing joint tenancy can have significant effects on your Inheritance Tax (IHT) liability, and being aware of these implications is vital for effective estate planning.
Impact on IHT Calculations
Severing joint tenancy changes the way your estate is calculated for IHT purposes. When you sever a joint tenancy, you are essentially converting it into a tenancy in common, where each owner’s share is distinct. This can affect how HMRC views your estate upon your passing.
For instance, if you and your spouse are joint tenants on a property, upon severance, you will each own a specific percentage of the property. This change can impact your overall IHT liability, as your individual share will be considered part of your estate.
Key Considerations:
- The value of your share in the property will be included in your estate for IHT purposes.
- Any gifts made within seven years of your passing could be subject to IHT.
- Severing joint tenancy may provide opportunities for IHT planning, such as making gifts or setting up trusts.
For more information on the differences between joint tenancy and tenancy in common, you can visit Osborne’s Law blog, which provides a detailed comparison.
Reporting Changes to HMRC
After severing a joint tenancy, it’s essential to report the changes to HMRC. This involves updating your records to reflect the new ownership structure. Failure to do so could result in penalties or incorrect IHT calculations.
To report these changes, you will need to:
- Notify HMRC of the change in ownership.
- Provide details of the new ownership structure.
- Update your tax returns to reflect the changes.
It’s advisable to consult with a tax professional to ensure that all necessary steps are taken and that you are in compliance with HMRC regulations.

Joint Tenancy and Property Ownership Issues
Joint tenancy, a common form of co-ownership in the UK, can sometimes lead to disputes among tenants, requiring careful handling. As we explore the intricacies of joint tenancy, it’s essential to understand the potential issues that can arise and how to address them effectively.
Handling Disagreements Among Joint Tenants
Disagreements among joint tenants can occur due to various reasons, such as differences in opinion on property management or financial contributions. To handle these disputes, it’s crucial to maintain open communication and, if necessary, seek mediation. We recommend that joint tenants establish a clear agreement outlining their responsibilities and rights to avoid potential conflicts.
Some common areas of disagreement include:
- Decisions on property maintenance and repairs
- Disputes over financial contributions and expenses
- Differences in opinion on selling the property
Addressing these issues promptly can help prevent escalated conflicts. It’s also advisable to keep detailed records of all transactions and decisions related to the property.

Legal Remedies for Disputes
When disagreements among joint tenants cannot be resolved through mediation, legal remedies may be necessary. In the UK, the courts can intervene to resolve disputes related to joint tenancy. One common legal remedy is the application for a court-ordered sale of the property under the Trusts of Land and Appointment of Trustees Act 1996.
Other legal options include:
- Seeking a court declaration on the ownership rights of each tenant
- Applying for an injunction to prevent a particular action
- Pursuing a claim for financial compensation for losses incurred due to another tenant’s actions
Understanding these legal remedies can help joint tenants navigate complex disputes and make informed decisions about their property.
Professional Advice for IHT Planning
Professional advice is essential for effective IHT planning, especially when considering the severance of joint tenancy. Navigating the complexities of IHT and the legal implications of severing joint tenancy can be challenging without expert guidance.
When to Consult a Solicitor or Tax Advisor
It’s advisable to consult a solicitor or tax advisor when you’re considering changes to your estate planning, such as severing joint tenancy. These professionals can provide personalized advice based on your financial situation and goals.
- When you’re unsure about the IHT implications of your estate.
- If you’re considering severing joint tenancy or other significant changes to your property ownership.
- When you need guidance on the legal documents required for severing joint tenancy.
Key Questions to Ask Professionals
When seeking professional advice, it’s crucial to ask the right questions to ensure you receive comprehensive guidance. Here are some key inquiries to make:
| Question | Purpose |
|---|---|
| What are the IHT implications of severing joint tenancy in my specific situation? | Understand how severing joint tenancy will affect your IHT liability. |
| What are the legal steps involved in severing joint tenancy? | Gain clarity on the process and required legal documents. |
| Are there alternative strategies for mitigating IHT that I should consider? | Explore other IHT mitigation options tailored to your circumstances. |
By consulting with a solicitor or tax advisor and asking the right questions, you can make informed decisions about your IHT planning and ensure that you’re taking the most effective approach for your situation.
Real-Life Case Studies
By delving into actual cases, we can better grasp how severing joint tenancy impacts IHT planning in the UK. Real-life scenarios provide invaluable insights into the effectiveness of various strategies, including the severance of joint tenancy.
Examples of Effective IHT Planning
Let’s consider a couple, John and Mary, who own their primary residence as joint tenants. Upon seeking advice, they decide to sever the joint tenancy to mitigate their IHT liability. By doing so, they can ensure that their children inherit their estate more efficiently.
Key Benefits:
- IHT Reduction: Severing joint tenancy allowed John and Mary to reduce their IHT liability.
- Flexibility: They can now leave their share of the property to their children, reducing the estate’s overall value.
- Control: By holding the property as tenants in common, they have more control over their individual shares.
Lessons Learned from Poor Planning
On the other hand, consider the case of Peter, who failed to review his joint tenancy arrangement. Upon his passing, his share automatically transferred to his joint tenant, increasing her estate’s value and subsequently her IHT liability.
| Scenario | IHT Liability Before | IHT Liability After |
|---|---|---|
| Joint Tenancy | £400,000 | £800,000 |
| Tenancy in Common (after severance) | £200,000 | £400,000 |
By severing joint tenancy, individuals can potentially halve their IHT liability, as seen in the table above. This simple yet effective strategy can make a significant difference in the overall estate planning process.
Conclusion: Making Informed Decisions on Joint Tenancy Severance
Understanding the implications of joint tenancy severance for inheritance tax in the UK is crucial for effective estate planning. Severing joint tenancy can be a strategic move to mitigate inheritance tax liabilities, but it’s essential to consider individual circumstances carefully.
Throughout this article, we’ve explored the key aspects of joint tenancy, the importance of inheritance tax planning, and the process of severing joint tenancy. We’ve also discussed potential drawbacks and alternative strategies for IHT mitigation, including tenancy in common and charitable donations.
Key Considerations
When contemplating severing joint tenancy for inheritance tax in the UK, it’s vital to assess your financial situation, family dynamics, and long-term goals. We recommend consulting with a solicitor or tax advisor to determine the best approach for your specific circumstances.
By making informed decisions about joint tenancy severance, you can protect your assets and ensure a smoother transition for your loved ones. Review your property ownership and estate planning regularly to stay ahead of changing circumstances and tax regulations.
FAQ
What is joint tenancy and how does it affect inheritance tax in the UK?
Joint tenancy is a form of property ownership where two or more individuals own a property together, with equal rights to the entire property. When one joint tenant dies, their share automatically passes to the remaining joint tenants, potentially impacting inheritance tax liabilities.
How does severing joint tenancy impact inheritance tax planning?
Severing joint tenancy can help mitigate inheritance tax by allowing individuals to control how their share of the property is distributed after their death, potentially reducing the tax burden on their estate.
What are the key differences between joint tenancy and tenancy in common?
The primary difference between joint tenancy and tenancy in common is that joint tenancy comes with a right of survivorship, whereas tenancy in common does not. Tenancy in common allows owners to hold distinct shares, which can be passed on to beneficiaries as they see fit.
What are the steps involved in severing a joint tenancy?
Severing a joint tenancy typically involves serving a notice to the other joint tenants, updating the property deeds, and potentially creating a new tenancy agreement. It is essential to seek professional advice to ensure the process is completed correctly.
Are there any potential drawbacks to severing joint tenancy?
Yes, severing joint tenancy can have implications, such as potential capital gains tax liabilities or changes to the property’s ownership structure. It is crucial to weigh these factors before making a decision.
How does severing joint tenancy affect IHT calculations?
Severing joint tenancy can impact IHT calculations by allowing individuals to control their share of the property, potentially reducing the value of their estate for IHT purposes.
What are the alternative strategies for IHT mitigation?
Alternative strategies for IHT mitigation include using tenancy in common, making gifts, creating trusts, and making charitable donations. Each of these strategies has its benefits and implications, and it is essential to seek professional advice to determine the best approach.
When should I consult a solicitor or tax advisor about severing joint tenancy?
It is advisable to consult a solicitor or tax advisor when considering severing joint tenancy, particularly if you are unsure about the implications or need guidance on the process.
How do I report changes to HMRC after severing joint tenancy?
After severing joint tenancy, it is essential to report any changes to HMRC, potentially including updates to your tax returns or notifying them of changes to your estate.
What are the risks associated with disagreements among joint tenants?
Disagreements among joint tenants can lead to disputes, potentially resulting in costly and time-consuming legal proceedings. It is crucial to address any disagreements promptly and seek professional advice if necessary.
Can severing joint tenancy help with estate planning?
Yes, severing joint tenancy can be a valuable estate planning tool, allowing individuals to control how their assets are distributed after their death and potentially reducing IHT liabilities.
How Joint Tenancy Interacts with Inheritance Tax: Estate Inclusion, Survivorship, and Unequal Contributions
Whose Estate Does the Property Fall Into?
One of the most consequential — and frequently misunderstood — aspects of joint tenancy under UK law is determining whose estate a jointly held asset falls into for inheritance tax purposes. Under the right of survivorship, when one joint tenant dies, their interest in the property passes automatically to the surviving joint tenant or tenants by operation of law, outside the deceased’s will entirely. However, this does not mean the asset escapes IHT. For IHT purposes, the deceased’s share of a jointly held property is typically treated as forming part of their chargeable estate at the date of death, even though legal title transfers instantly to the survivor.
HMRC’s approach is set out in the Inheritance Tax Manual at IHTM15021, which confirms that jointly held property is valued at the deceased’s proportionate share and included in their estate for IHT calculation. In most cases, where property is held as joint tenants, HMRC will treat each tenant as holding an equal share unless there is evidence to the contrary. This interaction with the nil-rate band — currently £325,000 per individual and frozen until at least 2028 — means that even where survivorship applies, the deceased’s deemed share may still generate an IHT liability if the total estate exceeds the available thresholds.
The Treatment of Unequal Financial Contributions
Where joint tenants have contributed unequally to the purchase of a property, HMRC may seek to look behind the legal structure and assess the beneficial ownership proportions on death. This is particularly relevant where, for example, one party funded the majority of the deposit or mortgage payments. In such circumstances, a resulting trust argument may arise, and HMRC may contend that the deceased’s beneficial interest — and therefore their chargeable estate — reflects their actual financial contribution rather than a simple equal split.
In our experience, this is an area where assumptions can be costly. Without a formal declaration of trust or a deed confirming the intended beneficial shares, the position may be contested, leading to uncertainty during probate and potential delays in settling the estate. Where contributions are demonstrably unequal, obtaining a declaration of trust at the time of purchase — or contemporaneously with any variation — is generally advisable, though our team would always recommend seeking advice from a qualified solicitor on the specific documentation required.
Why This Matters When Planning a Severance
Understanding estate inclusion rules is directly relevant to any decision about severing a joint tenancy. Once severance converts the ownership to a tenancy in common, each owner holds a defined, distinct share that can be directed by will. This gives each party the ability to use their nil-rate band independently and, where applicable, to consider whether the Residence Nil-Rate Band of up to £175,000 per person may be preserved — noting that the RNRB tapers for estates above £2 million. In contrast, leaving a joint tenancy intact may cause the entire property value to consolidate in the survivor’s estate, potentially pushing it above the threshold at which RNRB begins to taper away. The decision is rarely straightforward, and the interaction between survivorship, estate inclusion, and available reliefs should be modelled carefully before any steps are taken.
Common Questions About Joint Tenancy and Inheritance Tax
Will a joint account avoid inheritance tax?
Not necessarily, and this is a common misconception. A joint bank account does not automatically place funds outside the scope of IHT. On the death of one account holder, HMRC will typically treat the deceased’s proportion of the funds — usually assessed as half unless there is clear evidence of a different beneficial ownership split — as part of their chargeable estate. The fact that the surviving account holder gains access to the full balance by operation of survivorship does not remove the IHT exposure on the deceased’s deemed share. Where the total estate including that share exceeds the nil-rate band of £325,000 (frozen until at least 2028), IHT may still be due.
Is there inheritance tax on joint tenancy with right of survivorship?
Yes, in most cases. The right of survivorship determines how legal title passes, but it does not determine IHT treatment. HMRC assesses the deceased’s proportionate share of jointly held assets as part of their estate for IHT purposes, regardless of whether that share bypasses the will. Where the deceased and surviving joint tenant are spouses or civil partners, the spousal exemption will generally apply, meaning assets passing to a surviving spouse are outside the scope of IHT irrespective of the ownership structure. However, for non-spousal joint tenants — such as siblings, cohabitants, or business partners — no such exemption exists, and the full chargeable share will be assessed against available thresholds. With IHT receipts reaching £7.5 billion in 2023/24 according to HMRC, the cost of unplanned joint tenancy arrangements is increasingly significant.
What are the tax implications of joint tenancy?
The tax implications extend beyond IHT alone. For IHT, the key considerations are estate inclusion of the deceased’s share, interaction with the nil-rate band and the Residence Nil-Rate Band of up to £175,000 per person, and — where applicable — the spousal exemption. There may also be capital gains tax considerations if severance is accompanied by a transfer of beneficial interest between non-spouses, and stamp duty land tax implications depending on the circumstances of any restructuring. Each of these taxes operates independently, and a decision that is beneficial from an IHT perspective may carry unintended consequences in another area. Our team would always recommend a holistic review with appropriately regulated advisers — including a solicitor for the legal mechanics and, where investment or pension assets are involved, a regulated financial adviser — before proceeding.
How are spouses and civil partners treated differently from other joint tenants?
Spouses and civil partners benefit from the spousal exemption, which means transfers between them — whether during lifetime or on death — are generally outside the scope of IHT, provided both parties are UK domiciled. This fundamentally changes the planning calculus. For married couples, leaving a jointly held property to pass by survivorship to a spouse will not trigger an immediate IHT charge, though it may consolidate wealth in the survivor’s estate and reduce the overall use of both nil-rate bands. Severing the joint tenancy and directing each share by will — potentially into a discretionary trust — can allow both spouses’ nil-rate bands and Residence Nil-Rate Bands to be used more efficiently. For non-spousal joint tenants, no exemption applies, making severance and careful will planning considerably more urgent where estate values approach or exceed the available thresholds.

