Whole of Life Insurance for Inheritance Tax Planning
Whole of life insurance can help with inheritance tax planning by providing a lump sum on death, often written in trust so proceeds can be paid quickly outside the estate. It suits families with persistent UK inheritance tax exposure and illiquid estates who want to avoid forced sales, but success depends on correct trust setup, sustainable premiums, and regular reviews.
At a glance
- Inheritance tax is usually a timing and liquidity problem
- Whole of life can create predictable liquidity on death
- Trust ownership is often central to making the payout usable quickly
- The biggest long-term risk is premium sustainability, especially reviewable premiums
- Insurance funds tax, it does not reduce tax by itself
- Review when assets, family structure, domicile position, or rules change
People Also Ask
- How does whole of life insurance help with inheritance tax?
- Should whole of life for IHT be written in trust?
- Is whole of life better than term insurance for IHT planning?
- What are the risks of reviewable whole of life premiums?
- Do expats still pay UK inheritance tax?
- How much whole of life cover do I need to fund inheritance tax?
The expat reality
Inheritance tax planning often feels like a theoretical UK topic until a family is trying to administer an estate under time pressure.
Then the practical problem shows up:
- HMRC and estate expenses create deadlines
- assets are often illiquid or slow to realise
- probate and administration take time
- families make decisions while grieving
- cross-border estates add friction, delays, and extra paperwork
The result is that even wealthy families can become cash-poor at exactly the wrong moment.
Whole of life insurance is one of the simplest tools for this specific issue: liquidity at death. When it is structured properly, it can prevent forced sales and preserve control.
When it is structured badly, it becomes an expensive policy that does not do the job you thought it would.
I’m Josh, a financial planner specialising in expats in the Middle East. I join the dots across pensions, tax, currency, investments, insurance, and estate planning so globally mobile families stop guessing and start making confident decisions. I am authorised and able to advise clients across the Middle East, the UK, and the USA, which matters when estate planning must survive jurisdiction changes and still work in practice.
This is educational only, not personalised advice. Tax rules can change. Insurance is subject to underwriting and policy terms. The goal here is clarity: how whole of life is used for IHT planning, who it suits, what can go wrong, and how to evaluate it properly.
Core explanation
What problem whole of life is actually solving
Most people think inheritance tax is a percentage problem.
In real life, it is often a liquidity and timing problem:
- You can have a high-value estate and still have low accessible cash
- Property and private business interests are valuable but slow to monetise
- Investment portfolios may be invested for long-term goals, not forced liquidation
- Executors may need cash before they can sell anything calmly
- Families often need funds for living costs, legal fees, valuations, and admin
Whole of life insurance is used when the family wants a pot of money that appears exactly when the liability appears.
It is not a substitute for broader inheritance tax reduction planning. It is a way to fund a likely bill and reduce the risk of panic decisions.
What whole of life insurance is
Whole of life insurance is designed to pay out on death, whenever that occurs, as long as premiums are paid and the policy remains in force.
Two premium styles matter most for IHT planning:
Guaranteed premiums
- Premiums are designed to remain fixed (subject to contract terms)
- Higher initial cost is common
- Greater long-term certainty, which matters when you are planning decades ahead
Reviewable premiums
- Premiums can change at review points
- Often lower initial premiums
- Long-term affordability risk can be significant
For inheritance tax planning, where the policy may need to stay in place for life, premium sustainability is not a technical detail. It is the core risk.
How whole of life helps with inheritance tax planning
The typical logic looks like this:
- You estimate a likely inheritance tax exposure range and the timing risk
- You decide what portion you want to fund with insurance
- You structure ownership so the payout can be accessed quickly and efficiently
- You keep premiums sustainable and review the plan as the estate changes
The most common structure is a policy written in trust so proceeds can often be paid quickly to trustees rather than waiting for probate and estate administration.
Why trust structure is often the centre of the plan
If the policy proceeds are paid into your estate, you can create the opposite of what you intended:
- proceeds may be delayed by probate
- proceeds may increase the estate value in some circumstances
- the family still has a timing gap problem
Trust ownership is often used to aim for:
- speed of payment
- funds outside the estate in many cases
- control over how proceeds are applied to help the family
Trusts come with governance responsibilities. The plan is only as good as the trustees, documentation, and the family’s ability to execute.
Where people get it wrong
- They buy insurance without confirming whether inheritance tax is actually relevant to them
- They choose reviewable premiums because they look cheap now and ignore long-term sustainability
- They place the policy in trust but never brief trustees or keep documents accessible
- They insure a number without understanding that the liability can change
- They assume living abroad means the UK cannot apply inheritance tax rules to them
- They treat insurance as “the plan” and stop doing structural planning
What good looks like
A good whole of life IHT plan has:
- a clear objective: liquidity at death, not tax reduction fantasy
- premiums that remain affordable in later life
- correct trust setup and trustee readiness
- cover sized to a realistic exposure range and timing costs
- coordination with wider planning: gifts, wills, pensions, asset ownership
- review triggers tied to life events and major changes, not a vague “we should review sometime”
Five worked examples with numbers
Worked example 1: UK property-heavy expat family
Situation
A UK expat in Dubai owns UK property and investments. Their wealth is meaningful, but cash is limited. The family wants to avoid selling a UK property quickly if there is a tax bill.
The hidden risk
The family is asset-rich but cash-poor. A forced sale to meet tax and estate costs can destroy value and create stress.
The numbers
- UK property: £1,400,000
- UK investments: £900,000
- Other assets: £250,000
- Total estate: £2,550,000
- Liquid cash available: £80,000
- Target immediate liquidity reserve: £400,000 to £700,000 depending on allowances, debts, and timing needs
The planning logic
- Focus on liquidity gap, not the total estate value
- Estimate the plausible IHT exposure range and admin costs
- Decide what portion should be funded with insurance
- Structure payout access for speed and control
A clean solution approach
Use whole of life in trust to provide a defined liquidity pot that allows the family to administer the estate calmly and avoid forced sales, while broader planning reduces exposure over time.
Takeaway
You are usually funding timing and control, not buying insurance for its own sake.
Worked example 2: Second marriage and equalisation planning
Situation
A client has children from a first marriage and a new spouse. They want the spouse secure, but also want children to receive an inheritance without conflict over illiquid assets.
The hidden risk
Without liquidity, the plan becomes a battle over property and business interests. The family ends up selling assets at the wrong time or creating long-term resentment.
The numbers
- Total estate: £4,200,000
- Private business interest: £2,200,000
- Property: £1,200,000
- Liquid assets: £800,000
- Desired equalisation and liquidity pot: £800,000 to £1,200,000
The planning logic
- Identify conflict risk created by illiquidity
- Decide what liquidity would prevent forced outcomes
- Use whole of life in trust to create a clean, known pot
- Coordinate with will structure to reflect intent
A clean solution approach
Use insurance as a conflict reduction tool that provides liquidity for spouse support and inheritance equalisation, rather than forcing asset reshuffles at the worst time.
Takeaway
Liquidity can be a family harmony tool as much as a tax tool.
Worked example 3: Business owner relying on relief assumptions
Situation
A UK-connected business owner assumes Business Property Relief will remove IHT on their company shares and does nothing else.
The hidden risk
Relief assumptions can fail if the business changes, the asset no longer qualifies, or rules shift. The family then faces a liability with no liquidity plan.
The numbers
- Business interest: £3,000,000
- Other assets: £1,700,000
- Total estate: £4,700,000
- Liquid cash: £150,000
- Desired backstop liquidity: £500,000 to £1,000,000 as protection against relief uncertainty
The planning logic
- Treat relief as a benefit, not certainty
- Identify the downside if relief fails
- Fund a portion of the downside with insurance liquidity
- Review as the business evolves
A clean solution approach
Use whole of life to partially fund the “relief failure” scenario, while the core plan remains business structure and eligibility maintenance.
Takeaway
A backstop plan is cheaper than discovering you built on assumptions.
Worked example 4: Cross-border timing friction
Situation
A family has assets in the UK and the UAE. Even if overall wealth is strong, they expect delays in accessing certain accounts and property processes across jurisdictions.
The hidden risk
The family experiences a timing gap. They need cash for months while administration catches up, and borrowing becomes the default option.
The numbers
- UK assets: £2,100,000
- UAE assets: AED 6,000,000
- Monthly household costs: AED 55,000
- 12-month buffer need: AED 660,000
- Target UK liquidity pot: £300,000 to £600,000 depending on estate complexity
The planning logic
- Separate wealth from accessibility
- Fund the first year of practical continuity
- Ensure payout can be accessed quickly and used flexibly
- Align with wills and executor readiness
A clean solution approach
Use whole of life in trust to create a liquidity bridge while estate administration proceeds.
Takeaway
Timing gaps, not wealth, often cause the worst decisions.
Worked example 5: Premium sustainability risk
Situation
A 56-year-old wants whole of life for IHT liquidity. Reviewable premiums look cheap now and they assume they will remain manageable.
The hidden risk
Premiums rise later when retirement income is fixed and affordability is lowest. The policy is reduced or lapses when it is most needed.
The numbers
- Initial annual premium: £5,500 (reviewable, illustrative)
- Premium after 10 years: £9,500 (illustrative)
- Premium after 20 years: £16,000 (illustrative)
- Target cover: £500,000
- Retirement income: limited ability to absorb increases
The planning logic
- Premium risk is the main risk in reviewable whole of life
- Stress-test later-life affordability, not just year-one affordability
- Choose premium style and cover amount based on sustainable long-term funding
- Plan for adjustments and review triggers
A clean solution approach
Prioritise premium sustainability. A plan that fails in later life is not a plan.
Takeaway
In IHT planning, affordability over decades matters more than a cheap starting premium.
Deep dive
Whole of life vs term insurance for inheritance tax planning
A clean way to choose:
Whole of life fits when
- you expect IHT exposure to persist for life
- you want certainty that cover exists whenever death occurs
- liquidity at death is the primary goal
Term fits when
- you have a known exposure window
- you expect exposure to reduce due to gifting, asset sale, or changes in circumstances
- you want cost efficiency over a defined period
- you have a clear plan for what replaces the cover when term ends
Many families use a blend: term to cover a transition period and whole of life for a persistent baseline exposure.
The trust issue in plain English
Trust is often used because it can help proceeds be available faster and potentially outside the estate. The practical requirements are simple but often ignored:
- trustees must be willing and capable
- trustees must know the policy exists
- trustees must have access to documents
- the plan must be coordinated with wills and beneficiary intentions
- the family must know who to call, what to do, and where the paperwork is
A trust is not “set and forget”. It is a governance structure.
Sizing cover properly
The most common sizing error is insuring a number that feels mathematically neat.
Better sizing is built on:
- a realistic exposure range rather than a single figure
- the timing gap and administrative cost buffer
- the family’s ability to fund part of the tax from liquid assets
- premium sustainability
- the likelihood that exposure changes over time
In practice, many families do not need to fund the full IHT bill with insurance. They need to fund the portion that prevents forced sales and preserves choice.
Premium risk: the part you cannot ignore
For inheritance tax planning, reviewable premium policies can create a hidden cliff edge.
A sensible evaluation asks:
- what are the review intervals and what drives increases?
- what happens if you cannot afford the new premium?
- what premium level is plausible in later life?
- is there a realistic plan to maintain cover without stress?
Guaranteed premiums cost more early. They often buy the one thing you want most in IHT planning: certainty.
What can go wrong
- policy not written in trust, proceeds delayed
- trust exists but trustees are not briefed, documents are lost, or the family cannot execute
- reviewable premiums become unaffordable and cover lapses
- cover is never reviewed as the estate grows
- the plan assumes living abroad removes IHT exposure
- family relies on insurance and ignores broader planning, increasing exposure
When whole of life does not suit
It is often not suitable when:
- there is no meaningful IHT exposure
- the estate is already liquid enough to pay liabilities without stress
- premiums would weaken your overall financial resilience
- you expect exposure to fall materially and you can use term cover instead
- you are trying to solve a short-term problem with a long-term product
How to evaluate this properly
- Confirm whether UK IHT is actually relevant to your situation and why
- Define the liquidity problem: how much cash and when
- Decide whether the exposure is persistent or transitional
- Choose premium type based on long-term sustainability
- Use trust correctly and make trustee governance real
- Coordinate with wills, gifting, pensions, and asset ownership
- Set review triggers and maintain documentation
What gets overlooked in real life
- People confuse residency with domicile and assume IHT disappears when they leave
- A policy in trust is useless if trustees do not know about it
- Reviewable premiums can become an affordability trap later in life
- Families underestimate how long cross-border administration can take
- “We can sell assets” is rarely calm or cheap under deadlines
- Insurance funds tax. It does not replace gifting and structuring
- Asset growth can outpace cover if you never review
- A plan that depends on perfect future decisions is not a plan
- Executors often cannot find documents when they need them
- The best liquidity plan is the one your family can actually execute
How to stress-test what you already have
- Is the policy owned and structured to pay quickly when needed?
- Is it written in trust, and are trustees correct and contactable?
- Do trustees know the policy exists and what their role is?
- Are premiums guaranteed or reviewable, and have you stress-tested increases?
- Would the policy still be affordable in retirement years?
- Does the cover amount match a realistic exposure range today?
- Have you reviewed cover after major asset purchases or sales?
- Are wills and beneficiary intentions aligned with the trust?
- Do your executors have an estate map and document pack?
- Can your family fund 6–12 months of costs while administration runs?
- Is cover in the right currency for the liability you are trying to fund?
- Do you have a plan if premiums increase materially?
- Have you documented review triggers and the next review date?
Common mistakes
- Buying whole of life without confirming what drives IHT exposure
- Choosing reviewable premiums without long-term affordability planning
- Not using a trust where speed and estate separation is needed
- Setting up a trust but never briefing trustees or storing documents properly
- Insuring a neat number instead of a realistic exposure range
- Treating insurance as a substitute for wider IHT reduction planning
- Never reviewing cover as the estate grows
- Ignoring the liquidity gap created by probate and cross-border admin
- Assuming property can be sold quickly without value loss
- Cancelling cover before replacement is in place
- Relying entirely on relief assumptions without a backstop plan
Common objections and the honest answer
“I’m not UK resident, so I don’t have inheritance tax.”
Emotional logic
You left the UK, so the problem feels irrelevant.
Practical risk
IHT is not only a residency issue. Domicile and UK asset connections can keep it relevant. Many expats only discover this when the estate is already complex and illiquid.
Clean next step
Confirm whether IHT is in scope for you and what drives it. Then decide whether your problem is exposure, liquidity, or both.
“Whole of life feels expensive. I’d rather invest the money.”
Emotional logic
Insurance feels like dead money compared to investing.
Practical risk
This is often a liquidity certainty problem, not a return optimisation problem. If heirs must sell assets quickly or borrow expensively, the real cost shows up at the worst moment.
Clean next step
Compare premiums to the cost of forced selling or emergency borrowing under stress, including timing risk.
“I’ll just gift assets and avoid inheritance tax.”
Emotional logic
Gifting feels cleaner than paying premiums.
Practical risk
Gifting can work, but it requires time, consistency, and correct structure. Many families have partial exposure for years while gifting plans mature.
Clean next step
Build a gifting timeline and identify what exposure remains during the transition. Consider insurance as a backstop during that period.
“Trusts are complicated. I don’t want admin risk.”
Emotional logic
You want simplicity and you fear unintended consequences.
Practical risk
The bigger risk is often proceeds trapped in estate administration and delays when cash is needed. Trust governance matters, but so does executor reality.
Clean next step
Keep trust structure simple, appoint capable trustees, brief them, and store documents properly.
“Reviewable premiums are cheaper. I’ll take those.”
Emotional logic
Year-one price feels like the main decision.
Practical risk
Reviewable premiums can rise later when affordability is lowest. A long-term IHT plan can fail if premiums become unaffordable.
Clean next step
Stress-test later-life premium levels and choose premium style based on sustainability, not initial cost.
“My family can sell a property if they need cash.”
Emotional logic
You have assets, so liquidity feels solvable.
Practical risk
Sales can take months and may be value-destructive under deadlines. Cross-border administration can delay everything.
Clean next step
Map what can realistically be sold in 30, 90, and 180 days without a major haircut. If the answer is uncertain, liquidity planning matters.
“I’m planning to return to the UK, so I’ll deal with this later.”
Emotional logic
You want to wait until your life plan is final.
Practical risk
Insurability and affordability can change. Waiting can reduce options. Returning can also increase exposure rather than reduce it.
Clean next step
Build a plan that works now and is reviewable later, with clear triggers around relocation and asset changes.
“Won’t the payout just increase my estate and create more tax?”
Emotional logic
Adding money sounds like adding tax.
Practical risk
If the policy is paid into your estate, it can create problems. That is why trust ownership is often used to aim for proceeds outside the estate and accessible quickly.
Clean next step
Confirm ownership and trust setup. Where the proceeds land is the whole point.
Decision framework
- Confirm whether UK IHT exposure is relevant and why
- Define the liquidity problem at death: amount and timing
- Estimate a realistic exposure range and admin buffer
- Decide what portion to fund with insurance versus other planning
- Decide whether exposure is persistent or transitional
- Choose whole of life or term based on that time horizon
- Select premium type based on long-term sustainability
- Structure ownership and trust governance so proceeds are usable quickly
- Coordinate with wills, gifting, pensions, and asset ownership
- Review at trigger events and keep documents accessible
If you only do 3 things this week
- Confirm what drives your potential IHT exposure and whether it is persistent.
- Map the liquidity gap your family would face in the first year after death.
- If insurance is used, prioritise sustainable premiums and correct trust governance.
Self-diagnostic
Answer yes or no:
- Do you expect meaningful UK IHT exposure based on your circumstances?
- Is a large part of your estate illiquid or slow to sell?
- Would a forced sale be financially or emotionally damaging?
- Do you want certainty of cover regardless of when death occurs?
- Can you afford premiums comfortably over decades, including in retirement?
- Would premium increases create stress later in life?
- Do you have trustees who are capable and willing?
- Are wills and beneficiary intentions aligned with the trust intent?
- Are you relying on relief assumptions without a backstop plan?
- Do you expect relocation or repatriation that could change exposure?
- Would your executors be able to find documents quickly?
- Would a known liquidity pot reduce family conflict and stress?
Interpretation
- Green (0–3 yes): whole of life for IHT funding is less likely to be necessary.
- Amber (4–7 yes): it may be suitable with robust trust and premium planning.
- Red (8+ yes): you likely have a real liquidity planning need. Structure carefully and review regularly.
FAQ
Quick definitions
- Whole of life insurance: life cover designed to pay on death, whenever it occurs.
- Inheritance tax (IHT): UK tax that can apply to estates above allowances.
- Domicile: legal concept that can influence UK IHT exposure.
- Nil-rate band: amount potentially taxed at 0% before IHT applies.
- Residence nil-rate band: additional allowance linked to passing a home to direct descendants, subject to conditions.
- Trust: legal arrangement where trustees hold assets for beneficiaries.
- Bare trust: beneficiaries are fixed and entitled.
- Discretionary trust: trustees decide distributions among a class of beneficiaries.
- Guaranteed premiums: designed to stay fixed, subject to contract terms.
- Reviewable premiums: can increase at review points.
Questions and answers
How does whole of life insurance help with inheritance tax planning?
It provides cash on death to fund IHT and estate costs.
The value is speed and certainty when the estate needs liquidity. When written in trust, proceeds can often be accessed faster and may sit outside the estate in many cases. It does not reduce IHT by itself, but it can prevent forced sales and buy time for executors to administer the estate properly.
Should whole of life for IHT planning be written in trust?
Often yes, because it can improve access and keep proceeds separate from the estate.
Trust ownership can help avoid probate delays for the payout and give trustees flexibility to support beneficiaries or settle liabilities. The trust must be set up correctly and maintained. Trustees must know what to do, otherwise the plan can fail in practice.
Is whole of life better than term insurance for inheritance tax planning?
Whole of life fits persistent exposure, term fits transitional exposure.
If you expect IHT exposure for life, whole of life is aligned because it pays whenever death occurs. If exposure is likely to reduce through gifting or asset changes, term cover can be more efficient. Many plans use a mix, with term covering a transition period while wider planning matures.
What is the biggest risk with whole of life for IHT planning?
Premium sustainability, especially with reviewable premiums.
If premiums rise later and become unaffordable, the policy can lapse or be reduced. That can undermine the entire liquidity plan. For IHT planning, the right question is whether the policy can survive your retirement years, not whether it looks cheap today.
Do expats still pay UK inheritance tax?
Sometimes, yes, depending on the driver of exposure.
Living abroad does not automatically remove UK IHT exposure. Domicile and UK asset connections can keep it relevant. The correct approach is to confirm whether UK IHT is in scope for your situation and what is driving it, then plan liquidity and structure around that.
How much whole of life cover do I need to fund inheritance tax?
Size it to the liquidity gap and exposure range, not the whole estate.
Estimate a plausible IHT exposure range and add a buffer for admin and timing costs. Decide what proportion should be funded with insurance versus liquid assets or other planning. The best cover amount is the one that prevents forced decisions while staying affordable over decades.
Will the payout increase my estate and create more inheritance tax?
It can if paid into your estate, which is why ownership matters.
If proceeds are payable to the estate, they may add to estate value and can be delayed by probate. Trust ownership is often used to aim for proceeds outside the estate and accessible quickly. The effectiveness of the strategy depends heavily on where the proceeds land.
Is reviewable whole of life ever sensible for IHT planning?
Sometimes, but only with strong affordability and a plan for increases.
Reviewable premiums can work if you have high ongoing income, large buffers, and are comfortable adjusting cover later. For many families, guaranteed premium structures are better aligned because the problem you are solving is long-term certainty.
What happens if I stop paying premiums?
Cover can lapse or reduce, depending on the contract.
If the policy lapses, the expected liquidity disappears. Some policies may have value features, but you should not rely on them. For IHT planning, the plan must be built on sustainable premium funding from day one, with clear contingencies.
Can whole of life replace gifting and other IHT planning?
No, it funds a bill, it does not reduce the bill.
Tax reduction comes from actions like gifting, structuring, reliefs, and estate design. Whole of life is often used alongside these as a backstop for timing and liquidity, particularly while longer-term strategies mature.
Is whole of life useful if most wealth is in property?
Yes, property-heavy estates are a classic use case.
Property can be slow to sell and hard to sell calmly under deadlines. A liquidity pot on death can allow heirs to keep the property or sell on their own timeline. Cover should be sized to the likely cash gap, not the total property value.
How often should I review my whole of life IHT plan?
At least annually and after major trigger events.
Trigger events include marriage, divorce, a major asset sale or purchase, business changes, relocation, and changes in how you intend to retire. A plan that is not reviewed can drift away from the real exposure and become underfunded or unnecessarily expensive.
What should trustees actually do when someone dies?
They should claim the policy proceeds and apply them as intended.
In practice, trustees need the insurer details, policy number, claim process steps, and clarity on the purpose of proceeds. They may support beneficiaries directly, fund estate costs, or hold funds until administration is complete. The plan should make this simple, documented, and executable.
What is the simplest way to avoid this becoming complicated?
Use a simple structure, sustainable premiums, and clear documentation.
Choose one clear objective for the policy, keep trustees capable and informed, store documents in an accessible place, and review on a schedule. Complexity often comes from unclear intent, poor governance, and stale paperwork.
What happens next
A sensible advice process usually follows five steps:
- Clarify the objective and likely IHT driver
- Quantify the liquidity gap and timing risk
- Design structure and trust governance so proceeds are usable quickly
- Secure cover on sustainable premium terms and document the plan
- Review at least annually and at key life and asset events
You may also like
If you want to structure your pension properly for long-term family planning, read How to Protect Your UK Pension from Inheritance Tax.
For a broader perspective on long-term financial planning for families abroad, see Building Generational Wealth as an Expat.
If you are thinking about how your assets will pass to family members, this guide explains Estate Planning for Expats.
Many families make avoidable mistakes when structuring their plans. This article covers Common Estate Planning Mistakes to Avoid.
If someone dies without the correct legal documents in place, the consequences can be serious. This guide explains What Happens If You Die Without a Will.
When structuring international investments, many expats compare International SIPPs vs Offshore Bonds.
If you hold US stocks, it is important to understand the estate tax implications. Read Holding US Shares as an Expat: What You Need to Know.
For wider asset structuring considerations, this guide explains Offshore Banking for Expats.
Conclusion
Whole of life insurance can be a strong fit for inheritance tax planning when it is used for the right job: liquidity at death.
It tends to suit families who are:
- likely to have persistent UK IHT exposure
- asset-rich but cash-poor at the estate level
- keen to avoid forced sales and preserve control
- willing to maintain governance through a trust and a review process
The biggest success factor is not finding a clever product. It is building a plan that survives decades: sustainable premiums, correct trust structure, trustees who can execute, and regular reviews as your life and assets evolve.
Compliance note
This article is for general education only and is not personal financial, legal, or tax advice. UK inheritance tax, domicile rules, and allowances can change. Insurance is subject to underwriting and policy terms. You should take regulated advice based on your specific circumstances before acting.
References
https://www.gov.uk/inheritance-tax
https://www.gov.uk/inheritance-tax/passing-on-your-home
https://www.gov.uk/government/collections/inheritance-tax-manual
https://www.gov.uk/guidance/inheritance-tax-how-to-report-the-estate-of-someone-who-has-died
https://www.gov.uk/trusts-taxes
https://www.abi.org.uk/products-and-issues/choosing-the-right-insurance/
https://www.fca.org.uk/consumers/insurance
https://www.lawsociety.org.uk/topics/wills-and-probate
https://www.step.org/about-step