Inheritance Tax on a £700,000 Estate UK: Worked Examples for 2026
A single person with a £700,000 estate pays £80,000 IHT with the RNRB (home to children) or £150,000 without it — a £70,000 difference from one clause in the will. A married couple with the same estate can pay £0 by using both NRBs and both RNRBs. A 10% charitable legacy reduces the rate from 40% to 36%, saving a further £15,200.
| Scenario (£700,000 estate) | NRB | RNRB | Threshold | Taxable | IHT Due |
|---|---|---|---|---|---|
| Single — home to children (RNRB applies) | £325,000 | £175,000 | £500,000 | £200,000 | £80,000 |
| Single — home to children + 10% charity (36% rate) | £325,000 | £175,000 | £500,000 | £200,000 (minus £20k charity) | £64,800 |
| Single — no RNRB (no home or home not to descendants) | £325,000 | None | £325,000 | £375,000 | £150,000 |
| Married couple — both NRBs + both RNRBs (home to children) | £650,000 | £350,000 | £1,000,000 | £0 (below threshold) | £0 |
| Married couple — both NRBs, no RNRB (no direct descendants) | £650,000 | None | £650,000 | £50,000 | £20,000 |
| Single — £150k AIM BPR shares (2yr+); home to children | £325,000 | £175,000 | £500,000 + £150k BPR | £50,000 (excl. BPR assets) | £20,000 |
| Single — failed PET £50k (3yr ago); home to children | £275,000 (residual) | £175,000 | £450,000 | £250,000 | £100,000 |
2026/27. NRB: £325,000 (frozen to 2030). RNRB: £175,000 (frozen to 2030). RNRB requires home to pass directly to direct descendants. Transferred NRB (s8A IHTA 1984): claim IHT402. Transferred RNRB (s8G IHTA 1984): claim IHT436. 36% reduced rate (s36 IHTA 1984): requires 10% of net estate to charity. AIM BPR: 100% after 2yr; £1m combined BPR/APR cap from April 2026. RNRB taper: £1/£2 above £2m; fully lost at £2.35m (single) — not applicable to a £700k estate.
£700,000 Estate IHT: Detailed Analysis
IHT on a £700,000 estate — the RNRB saves £70,000 for single people
For a single person with a £700,000 estate, the inheritance tax ranges from £80,000 (with RNRB) to £150,000 (without RNRB) — a £70,000 difference that depends entirely on whether the main home passes to direct descendants. With the RNRB (home to children, grandchildren): NRB £325,000 + RNRB £175,000 = £500,000 combined threshold. Taxable estate = £700,000 − £500,000 = £200,000. IHT at 40% = £80,000. Without the RNRB (no home, home in discretionary trust, or home not to direct descendants): NRB £325,000 only. Taxable estate = £700,000 − £325,000 = £375,000. IHT at 40% = £150,000. The RNRB is worth £70,000 in IHT savings on a £700,000 estate. Since the home must pass 'directly' to direct descendants to claim the RNRB, the will must be checked carefully. Common mistakes that lose the RNRB: (1) directing the home to a discretionary trust (even with children as objects); (2) directing the home to siblings, parents, or unmarried partners; (3) joint tenancy where a co-owner is not a direct descendant (the automatic survivorship transfer does not pass through the will). The RNRB taper does not affect a £700,000 estate — the taper begins at £2,000,000.
Married couple with a £700,000 estate — £0 IHT with correct will planning
For a married couple (or civil partners) with a £700,000 estate, inheritance tax is £0 if the wills are structured correctly — even without relying on the RNRB. First death: everything passes to the surviving spouse under the spousal exemption (s18 IHTA 1984) — £0 IHT. Second death: the survivor has NRB £325,000 (own) + transferred NRB up to £325,000 (from first death, s8A IHTA 1984; claim IHT402) = £650,000 combined NRB. Estate of £700,000 exceeds the NRB of £650,000 — taxable estate = £50,000. IHT = £20,000. To eliminate this £20,000: add the transferred RNRB. If the home passes to direct descendants on the second death: own RNRB £175,000 + transferred RNRB £175,000 (s8G IHTA 1984; claim IHT436) = £350,000 combined RNRB. Total threshold: £650,000 + £350,000 = £1,000,000. Estate £700,000 below £1,000,000 — IHT = £0. Conclusion: a married couple with a £700,000 estate who leave everything to the surviving spouse on the first death, and direct the home to children on the second death, pay £0 IHT. The key is the will — and claiming both NRB and RNRB transfers (IHT402 and IHT436) on the second estate's IHT400.
Charitable legacy — reducing IHT from £80,000 to £64,800 on a £700,000 estate
Where a single person with a £700,000 estate and RNRB applies faces £80,000 IHT, leaving at least 10% of the net estate to charity reduces the IHT rate from 40% to 36% (s36 IHTA 1984). Calculation for a £700,000 estate with RNRB: Net estate for the purposes of the 10% test: estate £700,000 minus NRBs £500,000 = £200,000 (the 'baseline amount'). 10% of £200,000 = £20,000 required charitable legacy. IHT at 36% on the remaining taxable amount (£200,000 − £20,000 = £180,000): 36% × £180,000 = £64,800. Compare: 40% × £200,000 = £80,000 without charity. Saving = £15,200 in IHT (the charity receives £20,000 and the estate saves £15,200 IHT — effectively HMRC subsidises the charitable donation at 76p per £1). If the 10% test is not quite met (e.g. only 9% goes to charity), the 36% rate does not apply. It is possible to elect to merge the estate components to satisfy the test — this is a technical calculation that is worth professional review for estates near the 10% threshold. The 10% charity test must be explicitly met — it is not automatically triggered.
Strategies to reduce IHT on a £700,000 estate
For a single person facing £80,000-£150,000 IHT on a £700,000 estate, the most impactful strategies are: (1) Claim the RNRB — ensure the will directs the main home to children or grandchildren. Saves £70,000 IHT (£150,000 without RNRB vs £80,000 with RNRB). Free to implement via the will; (2) 10% charitable legacy — saves additional £15,200 on top of the RNRB (£80,000 → £64,800). Requires directing at least £20,000 to charity on a £700,000 estate with RNRB; (3) AIM BPR portfolio — £175,000 invested in qualifying AIM BPR shares (100% IHT-exempt after 2 years, up to the £1m cap from April 2026) eliminates £175,000 from the taxable estate, saving 40% × £175,000 = £70,000 in IHT. Combine with RNRB and charitable legacy for maximum reduction; (4) Annual gifts — £3,000/yr to family members (s19 IHTA — immediately exempt). Over 5 years: £15,000 removed from the estate, saving £6,000 in IHT. Small but compounding; (5) Normal expenditure from income (s21 IHTA) — any regular gifts from surplus income are immediately IHT-free with no 7-year requirement. If the person has pension income or investment income exceeding their living costs, regular giving can be substantial and unlimited; (6) Pension contributions (until April 2027) — pension funds in a SIPP or drawdown are currently outside the IHT estate; maximising pension funds (within annual allowance limits) before April 2027 (when they enter the estate) can reduce the taxable estate.
Frequently Asked Questions
How much inheritance tax do you pay on a £700,000 estate in the UK?
It depends on the RNRB and marital status. Single person, home to children (RNRB applies): NRB £325,000 + RNRB £175,000 = £500,000 threshold. Taxable = £200,000. IHT = £80,000 at 40%. Single person, no RNRB: NRB £325,000 only. Taxable = £375,000. IHT = £150,000. Married couple, both NRBs + both RNRBs (home to children): combined threshold £1,000,000. £700,000 below threshold = IHT £0. Married couple, both NRBs only (no RNRB, no direct descendants): £650,000 NRB; taxable = £50,000; IHT = £20,000. A charitable legacy of 10% of the taxable estate reduces the IHT rate from 40% to 36% (s36 IHTA 1984) — saving ~£15,200 on a £200,000 taxable estate.
How do I reduce inheritance tax on a £700,000 estate?
Key strategies: (1) RNRB — will must direct home to children/grandchildren (saves £70,000 in IHT); (2) 10% charitable legacy — reduces rate to 36% (saves ~£15,200 more); (3) AIM BPR portfolio — up to £1m at 100% IHT-exempt after 2yr; investing £175,000 saves £70,000 IHT; (4) Annual gifts (£3,000/yr — s19 IHTA) and small gifts (£250/person — s20 IHTA); (5) Normal expenditure from income (s21 IHTA — uncapped); (6) Pension funding before April 2027 (pension outside estate until that date). Combined: RNRB + charity + AIM BPR + annual gifts could reduce IHT from £150,000 (no planning) to under £30,000.
Does a married couple pay IHT on a £700,000 estate?
Not if their wills are structured correctly. First to die leaves everything to the survivor (spousal exemption — £0 IHT). Second death: own NRB £325,000 + transferred NRB £325,000 (s8A IHTA; claim IHT402) = £650,000. Estate £700,000 exceeds £650,000 — taxable = £50,000. IHT = £20,000. Add the transferred RNRB (s8G IHTA; claim IHT436) where the home passes to children on the second death: RNRB £175,000 (own) + £175,000 (transferred) = £350,000. Total threshold = £1,000,000. Estate £700,000 below £1,000,000 = IHT £0.
What is the IHT threshold for a £700,000 estate?
There is no single fixed threshold — it depends on individual circumstances: (1) Single person, RNRB applies (home to children): £500,000 combined NRB + RNRB threshold; (2) Single person, no RNRB: £325,000 NRB only; (3) Married couple, both NRBs + both RNRBs: £1,000,000; (4) Married couple, both NRBs only: £650,000. On a £700,000 estate, only the combination of transferred NRB + transferred RNRB (married couple, home to children) brings the threshold above £700,000. All other scenarios result in some IHT being payable.
Can a charitable legacy reduce IHT on a £700,000 estate?
Yes — leaving at least 10% of the net estate to charity reduces the IHT rate from 40% to 36% (s36 IHTA 1984). On a £700,000 estate with RNRB (taxable estate £200,000): 10% required legacy = £20,000 to charity. IHT at 36% on remaining £180,000 = £64,800 (vs £80,000 at 40% without charity). Saving = £15,200. The charity receives £20,000; HMRC receives £15,200 less. Effective cost to the estate of the charitable donation: £20,000 − £15,200 saving = £4,800. The remaining estate saves £15,200 in IHT by directing £20,000 to charity — a very efficient gift.
Reduce a £80,000 IHT Bill — Start with the Will
The RNRB, a 10% charitable legacy, and regular lifetime gifts together can reduce IHT on a £700,000 estate from £80,000 to under £30,000 — all starting with a correctly drafted will. WillSafe will kits for England and Wales from £39.99.
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