Introduction
Inheritance tax thresholds are the starting point for understanding whether tax might be due when someone dies. The two main allowances discussed here are the nil-rate band and the residence nil-rate band. They are different allowances with different conditions, not a single amount that every person automatically receives.
This guide uses the UK rules described by GOV.UK when this guide was prepared. It explains the principles rather than calculating your estate's bill. Gifts, trusts, reliefs, residence history and overseas assets can change the result. Check the rules again before making decisions, especially if your plans may operate many years from now.
The nil-rate band: the basic starting point
The standard nil-rate band is currently £325,000. It is the part of the chargeable estate that can fall within a zero rate of inheritance tax. It does not mean every asset is taxed individually above that value or that every family must pay tax as soon as a home is worth more.
An estate broadly involves assets, liabilities and relevant tax adjustments. Bank balances, investments, property interests and personal belongings can all be relevant. Some lifetime gifts may use the available nil-rate band before it is applied to the estate on death, so looking only at the assets still owned can be misleading.
The standard inheritance-tax rate is generally 40% on the part of the chargeable estate above the available allowances. That is not a claim that every estate pays 40% of its whole value. Exemptions and reliefs must be considered before arriving at a calculation.
The residence nil-rate band: an additional allowance
The residence nil-rate band can add up to £175,000, but only where its conditions are met. Broadly, a qualifying home or share of a home must pass to direct descendants. GOV.UK explains that qualifying descendants can include children, adopted children, foster children, stepchildren and grandchildren.
This is not a general allowance for owning any property. The deceased must have owned a qualifying residential interest, and the way the property passes matters. A home left to a sibling or a friend does not satisfy the direct-descendant requirement simply because that person is close to the family.
The available allowance is also limited by the value of the qualifying residential interest passing to descendants. It is not automatically the full £175,000 when a smaller qualifying share passes. Trust arrangements, sale proceeds and downsizing situations can require more detailed advice.
Why the residence allowance can reduce
The residence nil-rate band is tapered for estates above £2 million. Broadly, it reduces by £1 for every £2 by which the relevant estate value exceeds that threshold. The estate-value definition used for this test needs care; it is not simply the amount eventually left after every relief.
This matters because a family can have a valuable home and still receive less residence allowance than expected. Pension changes from April 2027 may also affect estate-value planning for some people. Do not assume a home passing to children guarantees the full additional band.
If you are near the taper threshold, obtain a calculation using realistic values and the applicable rules. Moving an asset or making a gift has wider consequences and may not produce the result you expect. A tax allowance should inform a suitable plan, not become the only reason for it.
What spouses and civil partners may transfer
Transfers to a spouse or civil partner are generally exempt from inheritance tax, although cross-border and residence-related circumstances can require specialist advice. Unused percentages of the nil-rate band and, where relevant, the residence nil-rate band may be transferred to a surviving spouse or civil partner's estate.
The percentage point is important. An unused allowance is not simply a cash balance left in an account. The executors need evidence about the earlier death and any allowance used. Historic wills, estate accounts and gift records can therefore be useful long after the first partner dies.
You may see headlines saying a couple can leave up to £1 million without inheritance tax. That can be the combined outcome of two basic bands and two full residence bands, but it depends on the facts. Marriage alone does not create an automatic £1 million exemption for every estate.
Unmarried partners are treated differently
Living together does not give a couple the same inheritance-tax treatment as marriage or civil partnership. An unmarried partner does not qualify for the spouse exemption simply because the relationship is long-standing, and unused bands do not transfer between partners on that basis.
That makes ownership and wills particularly important. An asset passing automatically by survivorship can still be relevant to inheritance tax. The legal route by which something passes and its treatment for tax are connected questions, but they are not identical.
Discuss the position of each person separately. One partner may own most of the property, have different beneficiaries or hold substantial pension benefits. A plan that looks balanced emotionally may not be balanced legally or financially unless these differences are understood and documented.
Gifts and the seven-year rule need context
Some gifts made during life can become exempt if the donor survives seven years, but there are different categories of gift and different exemptions. The seven-year rule is not a universal promise that anything transferred today will disappear from every future assessment.
If you give away a home but continue to benefit from it, gift-with-reservation rules may apply. Trust transfers have their own tax treatment. Gifts can also affect your financial independence, control of assets and exposure to someone else's debts or family circumstances.
Taper relief is often misunderstood too. Where applicable, it reduces tax on certain gifts; it does not simply reduce the value of every gift after a set number of years. Keep a dated record and ask for advice before relying on an exemption or relief.
Why the wording of a will or trust matters
Saying that a home is 'for the children' does not always describe the legal arrangement accurately. A child inheriting outright, a beneficiary receiving income and a person within a discretionary class can have different rights. Those differences can affect the residence nil-rate band and other tax treatment.
A trust may still serve a valuable family purpose, such as providing for a partner or a vulnerable beneficiary. The point is to compare the purpose, powers, costs and tax consequences rather than treating a trust as an automatic saving. An arrangement can be appropriate without reducing inheritance tax.
Review the will, title information and any trust documentation together. If an adviser recommends changing ownership or creating a trust, ask for an explanation of the alternatives and disadvantages. The explanation should show how the plan works for the people involved, not just quote the largest possible allowance.
Build a useful picture of your estate
Start with a current list of property interests, savings, investments, pensions, life policies, debts and significant gifts. Note who owns each item and whether it passes under a will, by survivorship or under a separate arrangement. Avoid treating an online estimate as a definitive professional valuation.
Record marriage or civil-partnership details, previous bereavements and any relevant overseas connections. Keep documents about a former spouse's estate where transferable allowances may be relevant. Do not send identity documents or full account details through a general website enquiry unless a secure process has been agreed.
Ask for assumptions to be made explicit in any calculation. Is it based on current law? Does it include pensions under the applicable death-date rules? Which reliefs are being assumed? A transparent calculation is more useful than a headline claim that an entire estate can be made tax-free.
Turn the thresholds into a sensible review
Inheritance-tax planning should sit alongside your own need for income, housing and flexibility. Giving away money that you may later need can create difficulties even if a tax saving is possible. Similarly, reducing tax should not undermine provision for a spouse, partner or dependent family member.
Use this guide to identify questions, then take them to an appropriate adviser. The related pension guide explains why April 2027 deserves a specific review, while the trust guide considers arrangements that may have non-tax purposes. Neither replaces advice on the figures and documents in your estate.
Inherita's inheritance-tax planning page explains how to start a discussion. Request a consultation using the form below or telephone the team. Ask for the proposed scope, any fees and any need for specialist tax or regulated financial advice to be explained before work begins.
Sources and further reading
Check current official guidance and the specialist commentary linked below. These sources support general information, not advice on your individual circumstances.
Common questions
Is the inheritance-tax threshold £325,000 or £500,000?
The standard nil-rate band is £325,000. Up to £175,000 of residence nil-rate band may be available where its conditions are satisfied. The combined amount is not automatic.
Can every married couple leave £1 million tax-free?
No. That headline depends on the available basic and residence bands, the transfer rules, the beneficiaries, estate values and other circumstances. Unmarried partners do not receive the same treatment.
Does leaving my home to children always qualify?
Not necessarily. The qualifying residential interest, the way it passes, its value and the estate-size taper all matter. Trust and downsizing arrangements need particular checking.
Talk through what may fit your circumstances.
Inheritance-tax planning can be a useful next step when you are ready to explore your options.