UK Inheritance Tax
Calculator 2025/26
Work out the inheritance tax on an estate including the nil-rate band, residence nil-rate band, gifts made in the last 7 years, and spousal allowance transfers. Enter any gifts below and the calculator will show which taper rate applies to each one.
Potentially Exempt Transfers (PETs) made within 7 years of death may reduce the nil-rate band available to the estate. Add any significant gifts below — the annual £3,000 exemption and small gifts are ignored.
| Gift value | Years before death |
|---|
IHT thresholds for 2025/26
Inheritance Tax is charged at 40% on the portion of an estate above the available thresholds. A reduced rate of 36% applies if at least 10% of the net estate is left to charity. Both the nil-rate band and the residence nil-rate band have been frozen since 2021 and will remain frozen until at least April 2028, meaning more estates fall into the IHT net each year as property and asset values rise.
| Allowance | Amount | Conditions |
|---|---|---|
| Nil-rate band (NRB) | £325,000 | Available to all estates |
| Residence nil-rate band (RNRB) | £175,000 | Home left to direct descendants; tapered above £2m estate |
| Transferred NRB (from late spouse) | Up to £325,000 | Unused % from deceased spouse/civil partner |
| Transferred RNRB | Up to £175,000 | Unused % from deceased spouse/civil partner |
| Combined max (married couple) | £1,000,000 | Both NRBs + both RNRBs, home to children, estate ≤ £2m |
The residence nil-rate band — and how RNRB tapering works
The RNRB is an additional £175,000 allowance available when a qualifying home is left to direct descendants — children, stepchildren, adopted children, foster children, grandchildren, and their spouses. It does not apply to nieces, nephews, siblings, or friends.
Crucially, the RNRB is tapered away for larger estates: for every £2 the net estate exceeds £2,000,000, the RNRB is reduced by £1. The RNRB is completely lost for single estates above £2,350,000, and for couples using both allowances above £2,700,000. This taper catches many people who consider themselves “not that wealthy” — a London property plus savings can easily push an estate over £2m.
Margaret’s estate totals £2,200,000 net. She leaves her home (worth £400,000) to her children and the rest to them too. Her NRB is £325,000 and she has a transferred NRB of £325,000 from her late husband. The RNRB should be £175,000, but her estate exceeds £2m by £200,000, so the RNRB is reduced by £100,000 (£200,000 ÷ 2). Her available RNRB is only £75,000 — not the full £175,000.
Total tax-free threshold: £325,000 + £325,000 + £75,000 = £725,000. Taxable estate: £1,475,000. IHT at 40%: £590,000.
Gifts and the 7-year rule
Gifts made more than 7 years before death are fully exempt from IHT. Gifts made within 7 years are Potentially Exempt Transfers (PETs) — they become chargeable if the donor dies within 7 years, but the tax rate is reduced by taper relief depending on how many years before death the gift was made.
The taper relief percentages apply to the tax on the gift, not the gift value itself. More importantly, gifts made within 7 years use up nil-rate band first — so a large gift can reduce the NRB available to the estate even if taper means little direct tax is owed on the gift itself.
| Years before death | Taper relief on tax | Effective IHT rate |
|---|---|---|
| 0–3 years | 0% | 40% |
| 3–4 years | 20% | 32% |
| 4–5 years | 40% | 24% |
| 5–6 years | 60% | 16% |
| 6–7 years | 80% | 8% |
| Over 7 years | — | Fully exempt |
IHT-exempt gifts — what you can give away tax-free
Not every gift is a PET. The following gifts are exempt from IHT regardless of when they are made:
- Annual exemption: £3,000 per tax year (plus one year’s carry-forward if unused)
- Small gifts: Up to £250 per person per year (cannot combine with annual exemption for the same person)
- Marriage gifts: £5,000 from a parent, £2,500 from a grandparent, £1,000 from anyone else
- Normal expenditure out of income: Regular gifts made from surplus income — not capital — that do not reduce your standard of living. These must be documented carefully.
- Gifts to charities, political parties, and housing associations are fully exempt.
- Gifts between spouses and civil partners are fully exempt (with restrictions if one spouse is non-UK domiciled).
How to reduce an inheritance tax bill
IHT planning is a long game. The most effective strategies require action well before death:
- Make gifts early — the 7-year clock only starts running when you make the gift, so the sooner you start, the sooner gifts become fully exempt.
- Use annual exemptions — £3,000 per year sounds modest but over 10 years a couple can give £60,000 free of IHT.
- Write life insurance in trust — a policy written in trust pays out outside the estate, providing cash for beneficiaries to pay the IHT bill without forcing a sale of assets.
- Pension planning — unused pension pots currently fall outside the estate for IHT, though from April 2027 the government has proposed including defined contribution pension pots in estates. This is worth monitoring closely.
- Leave 10% to charity — if your estate is above the threshold anyway, leaving 10% to charity reduces the rate from 40% to 36% on the whole taxable estate, which can actually benefit family beneficiaries.
- Business and agricultural reliefs — qualifying business assets and farmland may be 50% or 100% exempt. Rules are complex and being reformed from April 2026.
The Autumn 2024 Budget announced that Business Property Relief and Agricultural Property Relief will be capped at 100% relief on the first £1 million of qualifying assets from April 2026, with a 50% rate on the excess. This represents a significant change for farmers and business owners. Unused pension pots will also be brought into IHT from April 2027. These changes mean estate planning that worked in 2024 may need to be revisited.
Frequently asked questions
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