UK Inheritance Tax (IHT) 2026: Nil-Rate Bands, 7-Year Rule & Estate Planning

Understanding UK Inheritance Tax (IHT) in 2026

Inheritance Tax is assessed on the net value of your worldwide estate (property, savings, investments, and personal belongings minus liabilities) upon death. With threshold freezes maintained through 2028, rising property valuations bring thousands of ordinary family homes within scope of the statutory 40% tax rate.

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1. The Core Tax-Free Thresholds

1. Standard Nil-Rate Band (NRB): £325,000 per individual (frozen since 2009).
2. Residence Nil-Rate Band (RNRB): Up to £175,000 when passing a qualifying residential property to direct descendants (children, stepchildren, grandchildren).
3. Combined Spousal Allowance: £1,000,000 total (£325k × 2 + £175k × 2) transferred tax-free upon the second death of a married couple or civil partnership. (Note: Estates valued over £2,000,000 experience a taper of the RNRB by £1 for every £2 of estate value exceeding £2m).

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2. Verified Numerical Scenario: Surviving Parent Leaving an £850,000 Estate

Consider a widowed mother who passes away in 2026 leaving an estate valued at £850,000 (comprising a £600,000 family home in Hampshire and £250,000 in savings and investments) to her two adult children:

| Estate & Allowance Element | Amount (£) | Statutory Rules Applied | |---|---|---| | Gross Estate Valuation | £850,000.00 | Family home (£600k) + Investments (£250k) | | Standard Nil-Rate Band (Own) | -£325,000.00 | Standard statutory allowance | | Unused NRB Transferred from Late Spouse | -£325,000.00 | 100% spousal allowance transfer | | Residence Nil-Rate Band (Own) | -£175,000.00 | Passing home to direct descendants | | Unused RNRB Transferred from Late Spouse | -£175,000.00 | 100% transferred spousal residence allowance | | Total Available Tax-Free Threshold | £1,000,000.00 | Full married couple allowance | | Taxable Estate Remaining | £0.00 | £850,000 is under the £1,000,000 limit | | Total Inheritance Tax Due | £0.00 | Zero tax due! |

Comparison: If Unmarried or No Deceased Spousal Transfer

If this individual were single or divorced (holding only her own £500,000 total allowance):

• Taxable Estate: £850,000 - £500,000 = £350,000.00
• Inheritance Tax (40%): £140,000.00 due to HMRC within 6 months of death!

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3. The 7-Year Gift Rule & Taper Relief

Giving away assets during your lifetime reduces your estate value:

• Annual Exemption: You can gift up to £3,000 per tax year without triggering IHT rules.
• Potentially Exempt Transfers (PETs): Larger gifts are tax-free if you survive 7 years.
• Taper Relief Schedule:
  • Less than 3 years: 40% full tax
  • 3 to 4 years: 32% tax (20% reduction)
  • 4 to 5 years: 24% tax (40% reduction)
  • 5 to 6 years: 16% tax (60% reduction)
  • 6 to 7 years: 8% tax (80% reduction)
  • 7+ years: 0% tax (100% exempt)

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4. Regulatory Sources & Verification

• Statutory Foundation: Inheritance Tax Act 1984 (IHTA 1984) & HMRC Inheritance Tax Manual. Verified on 21/09/2026.
• Payment Deadline: IHT must be settled by the end of the sixth month after the person died before HMRC begins charging interest.

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5. Practical Limitations

• The Residence Nil-Rate Band cannot exceed the value of the residential property left to descendants.
• "Gifts with reservation of benefit" (e.g. gifting your home to children while continuing to live in it rent-free) remain fully taxable in your estate.

Plan your family estate and property calculations:

• UK Mortgage & Property Value Calculator
• UK Income Tax & Wealth Breakdown