Estate Planning for Families in London: What Every Parent Should Do Now

Estate planning for families in London is not something most parents sit down to think about on a Tuesday evening. Between school runs, mortgage payments, and the general chaos of raising children in one of the world’s most expensive cities, it tends to get pushed to the bottom of the list. But here is the uncomfortable truth: if you die without a valid will or a proper plan in place, the law decides what happens to your children, your property, and every penny you have built up. And the law does not know your family the way you do.

London parents, in particular, face a set of financial pressures that make this even more pressing. Average property prices in the capital frequently push even ordinary family homes into inheritance tax territory. Frozen tax thresholds, rising house values, and changes introduced in recent Budgets mean that more London families than ever before are sitting on estates that could face a significant tax bill when they are gone.

This guide walks you through everything you need to know about estate planning in London as a parent. From writing your will and appointing a guardian for your children, to setting up trusts, managing inheritance tax exposure, and making sure your wishes are actually carried out — this is the practical, no-nonsense resource you have been putting off reading. The best time to start was yesterday. The second-best time is right now.

Why Estate Planning for Families in London Cannot Wait

When people hear the phrase estate planning, they tend to picture wealthy retirees dividing up country estates. The reality is very different. In London, a three-bedroom semi in the outer boroughs can easily be worth £500,000 or more. When you combine that with savings, pensions, life insurance policies, and other assets, a completely ordinary family can have an estate that runs into the high six figures or beyond.

The nil-rate band — the amount you can leave tax-free — has been frozen at £325,000 since 2009. There is an additional residence nil-rate band of £175,000 if you leave your home to direct descendants such as children or grandchildren. That gives a single person a combined tax-free allowance of £500,000, or up to £1 million for a married couple or civil partnership. But these thresholds are frozen until at least April 2031, and London house prices have not stood still. More families are being pulled into inheritance tax (IHT) exposure simply because the value of their home has gone up.

Any amount above those thresholds is taxed at a flat rate of 40%. That is a significant sum that, without proper planning, gets paid to HMRC rather than going to your children.

Beyond the tax question, intestacy rules — the laws that determine what happens when you die without a will — are outdated and ill-suited to modern family life. Unmarried partners receive nothing. Stepchildren are excluded entirely. Children from previous relationships may not be protected in the way you would want. The courts decide who raises your minor children. None of this reflects how most London families actually live.

Step 1: Write a Valid Will — The Foundation of Your Estate Plan

The starting point for any family estate plan is a valid, legally sound will. Yet data consistently shows that a large proportion of UK adults do not have one. Among parents, that number is striking: research cited by The Association of Lifetime Lawyers found that 70% of UK parents had not named a legal guardian for their children in the event of their death.

A will does several important things for a London family:

• It names who inherits your assets and in what proportion
• It appoints an executor — the person responsible for carrying out your wishes
• It names a guardian for any minor children
• It can set out instructions for how assets should be held or distributed for children under 18
• It can include a letter of wishes alongside it, giving more detailed personal guidance

Without a will, your estate passes under intestacy rules, which follow a fixed legal formula. A cohabiting partner — no matter how long you have been together — receives nothing automatically. If you are separated but not divorced, your estranged spouse may still inherit. If you have children from a previous relationship, they could be left out entirely depending on your circumstances.

Mirror wills are popular with couples. Each partner leaves everything to the other, with the estate then passing to the children on the second death. For many London families, this is a sensible starting point. However, if your family situation is more complex — blended family, business ownership, significant assets, or property abroad — it is well worth consulting a qualified solicitor rather than using an online template.

Wills need to be properly signed and witnessed to be legally valid under the Wills Act 1837. Small errors in drafting or execution can make a will invalid, which is exactly what you were trying to avoid in the first place.

Step 2: Appoint a Guardian for Your Children

This is the most important decision most parents will ever make and, statistically, most of them have not made it.

If both parents die before a child reaches 18, the court will appoint a guardian. The court will do its best, but it does not know your family, your values, or your wishes. It may appoint someone you would not have chosen. There is nothing stopping it from choosing a relative who lives far away, has very different values, or is simply not in a position to take on the responsibility.

Naming a legal guardian in your will gives you direct control over this decision. Some things to think through when choosing:

• Shared values: Do they approach parenting, education, and faith in a way that aligns with yours?
• Practical capacity: Do they have the physical, emotional, and financial ability to raise a child?
• Age and health: Grandparents can be wonderful guardians, but consider whether they would realistically be able to take on children of primary school age
• Geography: If your preferred guardian lives in another country, are you comfortable with your children potentially being raised abroad?
• Their willingness: Always speak to the person before naming them. A guardian who is unprepared is not well-placed to take on the role

You can also appoint a substitute guardian in case your first choice is unable to take on the role when the time comes. You might even attach conditions — for example, naming the children’s grandparents as guardians provided they are under a certain age.

In London, where many families have multicultural backgrounds and international connections, this conversation can also carry implications about which country a child is raised in and under which legal system. It is worth taking specific legal advice if that is relevant to you.

Step 3: Set Up a Trust to Protect Assets for Minor Children

Here is a detail many parents do not know: children under 18 cannot legally receive money or assets directly. If you die and leave everything to your children, a trustee will manage those assets until they turn 18 — and then the entire inheritance becomes theirs outright, whether they are ready for it or not.

A discretionary trust or a bare trust set up within your will — or alongside it — gives you far greater control. You can:

• Name a trustee you trust to manage the money on behalf of your children
• Specify what the funds can be used for (education, housing, healthcare)
• Delay the age at which a child receives the full inheritance — for example, at 21, 25, or even in stages
• Allow the trustee to use their discretion based on the child’s circumstances at the time

Trusts can also be set up during your lifetime (known as inter vivos trusts). These have additional benefits in the context of inheritance tax planning, which we will come to shortly.

If you already have assets you want to ring-fence for specific children — particularly in a blended family where you have children from different relationships — a trust is often the cleanest way to do it. It makes your intentions legally enforceable rather than dependent on goodwill.

Setting up a trust correctly does require professional legal advice. They can be difficult or impossible to undo once established, and the tax treatment depends heavily on how they are structured. This is not a DIY job.

Step 4: Set Up Lasting Powers of Attorney

Estate planning is not just about what happens when you die. It is equally about what happens if you lose capacity while you are still alive — through illness, an accident, dementia, or any other circumstance that leaves you unable to manage your own affairs.

A Lasting Power of Attorney (LPA) is a legal document that appoints one or more people to make decisions on your behalf. There are two types:

1. Property and Financial Affairs LPA: Covers your bank accounts, investments, property, and financial decisions
2. Health and Welfare LPA: Covers medical treatment, care decisions, and day-to-day welfare choices

Without an LPA in place, your family faces a potentially lengthy and expensive application to the Court of Protection for a deputyship order — even if your intentions were always for your spouse or partner to manage things. The court process can take months and cost thousands of pounds. Meanwhile, your assets can be frozen.

For London parents with mortgages, rental properties, or business interests, an LPA for property and financial affairs is particularly critical. If you were suddenly incapacitated, someone needs to be able to keep the mortgage paid and manage your finances. Without an LPA, they cannot do that legally.

You can set up both types of LPA through the Office of the Public Guardian. It is worth doing it now, while you have full capacity, rather than waiting until circumstances make it urgent — at which point it may be too late.

Step 5: Understand and Plan for Inheritance Tax in London

Inheritance tax planning is where London families feel the pinch most acutely. Property values in the capital mean that even families with relatively modest lifestyles can leave behind estates that exceed the available thresholds.

To recap the current position:

• Nil-rate band: £325,000 per person (frozen until April 2031)
• Residence nil-rate band: £175,000 per person if the family home is left to direct descendants (also frozen)
• Combined allowance for a married couple: Up to £1 million if both allowances are transferred correctly

Anything above these thresholds is taxed at 40%. If the London family home alone is worth £700,000 and sits in a single person’s name, there is already a potential tax liability on the portion above £500,000.

There are several legitimate strategies families can use to reduce their IHT exposure:

Annual Gifting Allowances

Each person can give away up to £3,000 per tax year free of IHT. You can also carry forward one unused year’s allowance, meaning a couple could gift up to £12,000 in a single year if they have not used the previous year’s allowance. Small gifts to individuals (up to £250 per person) are also exempt.

Potentially Exempt Transfers (PETs)

Larger gifts made to individuals during your lifetime are known as Potentially Exempt Transfers. If you survive for seven years after making the gift, it falls entirely outside your estate for IHT purposes. If you die within seven years, the gift may still be taxable but at a reduced rate on a sliding scale — known as taper relief — if it was made between three and seven years before your death.

Life Insurance Written in Trust

A life insurance policy written in trust sits outside your estate and can be accessed immediately by your beneficiaries to pay any IHT due. This prevents the need to sell assets — including the family home — while probate is being resolved. For many London families, this is one of the most practical and cost-effective tools available.

Trusts and Lifetime Transfers

Transferring assets into certain types of trust can reduce the value of your taxable estate. Chargeable Lifetime Transfers to discretionary trusts may be subject to an immediate charge if they exceed the nil-rate band, so this needs careful structuring. Again, professional advice is essential.

Step 6: Review Your Pension and Life Insurance Arrangements

Pensions deserve special attention in any family estate plan. Under current rules, pensions generally sit outside your estate for inheritance tax purposes, though this is changing. The government announced in the Autumn 2024 Budget that unspent pension pots will be brought into the scope of IHT from April 2027 — a significant change for families who have been using pensions as part of their IHT planning.

In the meantime, make sure you have completed and updated the nomination of beneficiary form with your pension provider. This is not the same as leaving your pension in your will — it is a separate instruction to the pension trustees, and it determines who receives the funds. If you have not updated it since you had children or changed your circumstances, there is a real risk the money goes somewhere you did not intend.

For life insurance, check:

• That your policy is written in trust (if it is not, the proceeds form part of your taxable estate)
• That the sum assured is sufficient to cover your family’s needs and any IHT liability
• That your beneficiary nominations are up to date

Many London parents have life insurance through their employer as a death in service benefit. Make sure you know what it covers, who it would be paid to, and whether it is held in trust.

Step 7: Review and Update Your Estate Plan Regularly

A will written before you had children, before you bought a property, or before a divorce is not the same as a current, fit-for-purpose estate plan. Estate planning is not a one-time event. It should be revisited every three to five years, or whenever a significant life event occurs, including:

• The birth or adoption of a child
• Marriage, civil partnership, or divorce (in England and Wales, marriage automatically revokes an existing will unless it was made specifically in contemplation of that marriage)
• A significant change in your financial circumstances
• Buying or selling property
• A change in your wishes about guardianship
• The death of a named executor, guardian, or beneficiary
• Changes in tax law that affect your planning

London life moves fast. Families grow, assets change, and relationships evolve. An estate plan that was right five years ago may leave significant gaps today.

Special Considerations for London Families

Blended Families and Step-Children

Modern London families often do not fit the traditional mould. If you have stepchildren, they have no automatic legal right to inherit from you under intestacy rules. The only way to protect them is to name them explicitly in your will. Similarly, in a blended family, mirror wills can sometimes lead to unintended outcomes — for example, if a surviving spouse remarries, a new will might cut out children from a previous relationship entirely. A life interest trust can protect both your current partner and your children from a previous relationship.

Unmarried Couples in London

Cohabiting couples have virtually no automatic inheritance rights in England and Wales, regardless of how long they have been together. The idea of common-law marriage is a persistent myth — it has no legal basis in English law. If you want your partner to benefit from your estate, you must say so explicitly in your will. For inheritance tax purposes, the unlimited spousal exemption only applies to married couples and civil partners, not cohabiting partners.

International and Expatriate Families

London is home to a large international community. If you hold assets in more than one country, the estate planning picture becomes considerably more complex. You may need wills in multiple jurisdictions, and you need to understand how the rules interact. From April 2025, new long-term residence rules mean that UK IHT is now based on how long you have lived here rather than where you consider your permanent home to be. Anyone who has been UK resident for 10 of the last 20 tax years is treated as a long-term resident and faces IHT on their worldwide assets.

How to Find the Right Solicitor for Estate Planning in London

For straightforward estates, a high-street solicitor or a specialist will-writing firm can do a perfectly good job. For more complex situations — significant assets, business ownership, international elements, or blended families — you will want to work with a solicitor who specialises in wills, trusts, and estate planning.

Look for membership of The Society of Trust and Estate Practitioners (STEP), which represents professionals who specialise in this area. You can also use the Law Society’s Find a Solicitor tool to find accredited professionals in London.

Do not be tempted to use a generic online will-writing service if your situation is even slightly complicated. The cost of getting it wrong — financially and emotionally — far exceeds the cost of proper advice.

A Practical Checklist for London Parents

Here is a summary of what to act on:

• [ ] Write or update your will with a qualified solicitor
• [ ] Name a legal guardian for your minor children
• [ ] Consider a trust to manage assets for children under 18
• [ ] Set up a Property and Financial Affairs LPA
• [ ] Set up a Health and Welfare LPA
• [ ] Review your pension nomination of beneficiary forms
• [ ] Check that your life insurance is written in trust and beneficiaries are up to date
• [ ] Review your potential inheritance tax exposure and take advice on mitigating it
• [ ] Consider annual gifting strategies to reduce the size of your taxable estate
• [ ] Review and update your estate plan every three to five years

Conclusion

Estate planning for families in London is one of the most practical, caring, and responsible things a parent can do — and yet most of us keep putting it off. The combination of high property values, frozen tax thresholds, and outdated intestacy laws means that ordinary London families face real risks if they do not take action. Writing a valid will, naming a guardian for your children, setting up a trust, establishing lasting powers of attorney, reviewing your inheritance tax exposure, and keeping your pension and insurance arrangements up to date are not complicated tasks on their own.

But together they form a plan that protects your family regardless of what the future holds. The stakes are too high, and the process far more straightforward than most people fear. Start today, get proper advice, and review your plan as your family grows and life changes around you.