Inheritance Tax Planning in 2026: A Practical Guide

Quick answer

Inheritance tax (IHT) in 2026/27 is charged at 40% on the value of an estate above the available allowances. The good news is that those allowances are substantial, and the rules give you several legitimate tools to reduce a future bill: combining a couple's nil-rate bands, leaving a home to children to unlock the residence allowance, making gifts and surviving seven years, and using the annual exemptions that fall outside the gift rules entirely.

This guide walks through each of those tools in plain English, shows how the bands and the seven-year rule actually work, and explains where trusts fit in — and where they do not. None of this is a substitute for professional advice on a large or complex estate, but it will let you understand your position and ask the right questions.

The two nil-rate bands

The starting point for any IHT plan is the two allowances every estate can use.

The nil-rate band (NRB) is £325,000. The first £325,000 of an estate passes free of IHT; only value above it is potentially taxed.

The residence nil-rate band (RNRB) adds up to a further £175,000, but with strings attached. It applies only when a main residence is left to direct descendants — children, stepchildren, adopted children, grandchildren and so on. It does not apply if you leave the home to a sibling, a niece, or a friend. The RNRB also tapers away for very large estates worth over £2 million, reducing by £1 for every £2 above that threshold.

Put together, an individual can pass on up to £500,000 (£325,000 + £175,000) free of IHT if they leave a qualifying home to their children.

How couples reach £1 million

The single most powerful piece of IHT planning for married couples and civil partners is built into the rules and requires no clever structuring at all: transferable allowances.

When one partner dies, transfers to the surviving spouse are normally completely exempt — no IHT, whatever the amount. Crucially, any unused NRB and RNRB transfer to the survivor. So when the second partner dies, their estate can use two nil-rate bands (£650,000) and two residence nil-rate bands (£350,000), for a combined total of up to £1 million before 40% IHT bites — provided a home worth at least £350,000 passes to direct descendants.

This is why a well-drafted will matters even when you intend to leave everything to your spouse: you want to be sure the allowances are preserved and transferable, and that the home is ultimately routed to descendants to capture the RNRB. Work out roughly where your combined estate sits against these thresholds using the

, then model the potential bill with the .

The 7-year rule on gifts

Giving assets away during your lifetime is the classic way to reduce an estate — but the timing matters enormously.

Most lifetime gifts to individuals are potentially exempt transfers (PETs). If you survive 7 years after making the gift, it falls entirely outside your estate for IHT. If you die within 7 years, the gift is brought back into the calculation and can be taxable.

Two features soften this:

• Order of use. Gifts made in the 7 years before death use up your nil-rate band first, in date order. So a gift only generates an actual tax charge if it, together with earlier gifts, exceeds the available nil-rate band.
• Taper relief. If a gift is taxable and was made between 3 and 7 years before death, the rate of tax on that gift reduces on a sliding scale. A common misunderstanding is that taper reduces the value of the gift — it does not. It reduces the tax on gifts above the nil-rate band. For gifts within the nil-rate band, taper has no effect because there is no tax to taper.

The practical lesson: large gifts are most valuable when made early, while you are healthy, so the seven-year clock has time to run.

The exempt gifts that sit outside the 7-year rule

Some gifts are exempt immediately — they never enter the seven-year calculation at all. These are the everyday tools of sensible IHT planning:

• Annual exemption of £3,000. You can give away £3,000 each tax year with no IHT consequence. If you did not use last year's, you can carry it forward one year, allowing up to £6,000 in a single year.
• Small gifts of £250. You can give £250 to as many different people as you like each year (but not to someone who has already received your annual exemption).
• Gifts out of surplus income. Regular gifts made from income that do not reduce your normal standard of living are exempt, with no upper limit — a powerful but underused relief. Keep records to evidence the pattern and that it came from income, not capital.
• Wedding gifts. Up to £5,000 to a child, £2,500 to a grandchild and £1,000 to anyone else, given on the occasion of their marriage.
• Gifts to spouses and charities. Both are normally fully exempt.

These exemptions are "use it or lose it" each year. A couple using their full annual exemptions and surplus-income gifts can move meaningful sums out of their estate over time without any seven-year wait.

Where pensions fit in

Pensions deserve a mention because they have historically sat outside the estate for IHT and are often the most tax-efficient asset to pass on or to draw down last. The treatment of pensions on death is an area the government has signalled it is reviewing, so the rules here are more likely than most to change. The general planning principle has been to spend other assets first and preserve the pension, but because this is precisely the kind of rule that shifts, check the current position before you build a plan around it. You can model the value of a pension pot over time with the

, but treat the IHT treatment as something to confirm with an adviser given the policy uncertainty.

Where trusts fit — and where they do not

Trusts are often presented as the silver bullet of IHT planning. They have legitimate uses, but they are not free, simple, or always effective, and they are easy to get wrong.

A trust lets you put assets aside for beneficiaries while controlling how and when they receive them — useful for protecting money for young children, vulnerable beneficiaries, or to keep assets out of a beneficiary's own estate or divorce. For IHT, transferring assets into most trusts is itself a transfer that can use your nil-rate band, and many trusts face their own periodic and exit charges (commonly assessed every ten years). The "gift with reservation" rule also blocks a popular mistake: you cannot give your house into a trust and carry on living in it rent-free and still have it count as gone for IHT.

In short: trusts can be valuable for control and protection, and sometimes for IHT, but they involve ongoing costs, administration and their own tax regime. They are firmly in "take professional advice" territory — never set one up off the back of a marketing pitch.

Business and agricultural property

Two reliefs deserve a mention because they can dramatically reduce — or historically eliminate — IHT on certain assets, and because they are an area of active policy change.

Business Relief (sometimes called Business Property Relief) has long offered relief on qualifying business assets, such as an unlisted trading company or an interest in a business. Agricultural Property Relief has done the same for qualifying farmland and farm buildings. Historically, qualifying assets could attract up to 100% relief, taking them entirely out of the IHT calculation, which made them central to planning for business owners and farming families.

This is precisely the kind of relief the government has signalled it intends to reform, with changes to how much relief applies above certain thresholds. Because the detail is shifting, anyone relying on Business or Agricultural Property Relief should treat the position as fluid and take current professional advice rather than assuming the historic 100% relief still applies in full. The principle — that genuine trading businesses and working farms get favourable treatment — is likely to endure, but the generosity of it is exactly what is under review.

Life insurance written in trust

A practical tool that often gets overlooked is using life insurance to cover a predicted IHT bill, rather than trying to eliminate the bill itself. If your estate will face IHT and you would rather your heirs received the full value of your assets, a whole-of-life policy can pay out a lump sum on death to settle the tax.

The crucial detail is that the policy should be written in trust. If it is not, the payout falls into your estate and is itself subject to 40% IHT — defeating the purpose. Written in trust, the proceeds pass outside your estate, straight to your beneficiaries, and can be used to pay HMRC so that the rest of the estate does not have to be sold to cover the bill. This does not reduce the tax, but it provides liquidity exactly when it is needed — useful where the estate is mostly tied up in property that would otherwise have to be sold in a hurry. The premiums themselves can often be funded from the surplus-income exemption.

Common mistakes that increase IHT

A handful of avoidable errors regularly cost families more tax than necessary:

1. No will, or an outdated one. Dying intestate means the law decides who inherits, which can waste allowances and fail to route the home to descendants for the RNRB. An old will may not reflect a current home or family.
2. Gifting the home but continuing to live in it. The "gift with reservation of benefit" rule means a home you give away but continue to enjoy rent-free still counts as part of your estate. This is the single most common DIY mistake.
3. Leaving everything outright when a will could preserve allowances. Poor drafting can fail to use a deceased partner's nil-rate band efficiently.
4. Forgetting to use exemptions annually. The £3,000 annual exemption and surplus-income gifts are "use it or lose it" — years of unused allowances are gone forever.
5. Holding life cover outside trust, so the payout inflates the very estate it was meant to protect.
6. Leaving large gifts too late. A substantial gift made in the final years before death may not survive the seven-year rule, so the tax planning fails just when it was meant to work.

Avoiding these is mostly about getting a proper will and reviewing it, then using the everyday exemptions consistently. Estimate the bill these mistakes could create — or avoid — with the

.

The charity rate

One further incentive is worth knowing. If you leave at least 10% of your net estate to charity, the IHT rate on the rest of the estate falls from 40% to 36%. For the charitably inclined, this can mean that giving more to good causes costs the other beneficiaries far less than the headline figures suggest, because the reduced rate offsets part of the gift. It is a genuine win-win that is easy to build into a will, and another reason to think about your estate plan holistically rather than focusing only on minimising tax.

A simple planning checklist

1. Estimate your estate. Add up property, savings, investments and possessions, less debts, using the
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   Net Worth Calculator

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2. Make a will and ensure it routes the home to direct descendants to capture the RNRB and preserves transferable allowances for a spouse.
3. Use annual exemptions every year — the £3,000 allowance, small gifts and especially regular gifts from surplus income.
4. Make larger gifts early so the 7-year clock has time to run, and keep records.
5. Estimate the potential bill with the
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   Inheritance Tax Calculator

   Estimate Inheritance Tax liability on an estate with our UK IHT calculator.

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   so you know whether planning is even needed.
6. Get advice on anything involving trusts, business or agricultural property, or estates near or above the £2 million RNRB taper.

The bottom line

Most estates can pass on a great deal before IHT applies: £325,000 each plus up to £175,000 of residence allowance, doubling for couples to as much as £1 million. The everyday tools — spousal exemption, transferable bands, the £3,000 annual exemption, gifts from surplus income, and large gifts made early enough to clear the seven-year rule — do most of the heavy lifting without any complex structuring. Trusts and pensions can play a role, but both involve rules that are changing and that warrant professional advice.

This is general information, not financial or legal advice. Inheritance tax is complex and the rules change; consult a qualified adviser before making significant gifts or setting up trusts.