UK Inheritance Tax Calculator
Estimate your potential inheritance tax liability with our precise calculator. Understand thresholds, exemptions and planning opportunities.
Introduction to Inheritance Tax & Why It Matters
Understanding inheritance tax (IHT) is crucial for effective estate planning and ensuring your beneficiaries receive maximum value from your assets.
Inheritance Tax is a tax on the estate (the property, money and possessions) of someone who’s died. In the UK, there’s normally no Inheritance Tax to pay if:
- The value of your estate is below the £325,000 threshold
- You leave everything above the £325,000 threshold to your spouse, civil partner, a charity or a community amateur sports club
- You leave your home to your children (including adopted, foster or stepchildren) or grandchildren, which increases the threshold to £500,000
If your estate is valued above these thresholds, the portion above the threshold is taxed at 40%. However, there are numerous exemptions, reliefs and planning strategies that can significantly reduce or even eliminate your IHT liability.
According to HMRC statistics, only about 4% of UK deaths result in an Inheritance Tax charge, but for those that do, the average bill is over £200,000. Proper planning can make a substantial difference to what your loved ones ultimately receive.
How to Use This Inheritance Tax Calculator
Follow these step-by-step instructions to get the most accurate inheritance tax estimate.
- Enter Your Total Estate Value: Include all assets – property, investments, savings, vehicles, personal possessions, and business assets. Be as comprehensive as possible for accurate results.
- Select Your Relationship: Choose your relationship to the deceased. Spouses and civil partners have special exemptions, while direct descendants may qualify for the residence nil-rate band.
- Account for Recent Gifts: Enter any gifts made in the 7 years before death. These may be subject to taper relief depending on when they were given.
- Specify Property Value: Enter the value of any property in the estate. This is particularly important for calculating the residence nil-rate band.
- Indicate Residence Status: Select whether the deceased was UK domiciled. Non-domiciled individuals have different rules for UK assets.
- Include Charitable Donations: Enter any gifts to charity, which are exempt from IHT and can reduce the tax rate on the remaining estate if they exceed 10% of the net estate.
- Review Your Results: The calculator will show your taxable estate, available allowances, taxable amount, and the inheritance tax due at 40%.
Pro Tip: For the most accurate results, have your latest property valuation, investment statements, and records of any significant gifts ready before using the calculator.
Inheritance Tax Formula & Calculation Methodology
Understand the precise mathematical calculations behind our inheritance tax estimator.
The inheritance tax calculation follows this logical sequence:
- Calculate Gross Estate: Sum all assets including property, investments, cash, and personal possessions.
- Subtract Liabilities: Deduct any debts, funeral expenses, and reasonable administration costs.
- Add Back Exempt Gifts: Certain gifts made in the 7 years before death may need to be added back to the estate value.
- Apply Nil-Rate Band: The standard nil-rate band is £325,000 (2023/24). This is the amount below which no IHT is payable.
- Apply Residence Nil-Rate Band: An additional £175,000 (2023/24) may be available if a residence is passed to direct descendants.
- Calculate Taxable Estate: Subtract the total nil-rate bands from the net estate value.
- Apply Taper Relief: For gifts made 3-7 years before death, taper relief may reduce the tax payable on those gifts.
- Calculate Tax at 40%: The taxable amount is charged at 40%, though this may be reduced to 36% if at least 10% of the net estate is left to charity.
The mathematical formula can be expressed as:
Taxable Estate = (Gross Estate + Gifts - Liabilities) - (Nil-Rate Band + Residence Nil-Rate Band)
Inheritance Tax = (Taxable Estate × 40%) - Taper Relief + Tax on Gifts
Our calculator handles all these complex interactions automatically, including:
- Transfer of unused nil-rate bands between spouses
- Taper relief calculations for gifts made 3-7 years before death
- Residence nil-rate band eligibility and tapering for estates over £2 million
- Charitable donation impacts on the tax rate
- Different rules for UK domiciled vs non-domiciled individuals
Real-World Inheritance Tax Examples
Examine these detailed case studies to understand how inheritance tax applies in different scenarios.
Case Study 1: Married Couple with £1M Estate
Scenario: John and Mary are married with a combined estate of £1,000,000 including a £500,000 home. John dies first leaving everything to Mary. Mary dies 5 years later leaving everything to their two children.
Calculation:
- First death (John): £1,000,000 to spouse = £0 IHT (spouse exemption)
- John’s nil-rate band (£325,000) and residence nil-rate band (£175,000) transfer to Mary
- Second death (Mary): Estate remains £1,000,000
- Total available allowances: £325,000 (Mary) + £325,000 (John) + £175,000 (Mary) + £175,000 (John) = £1,000,000
- Taxable estate: £1,000,000 – £1,000,000 = £0
- IHT due: £0
Result: With proper planning using spouse exemption and transferable nil-rate bands, this £1M estate pays no inheritance tax.
Case Study 2: Single Person with £600K Estate
Scenario: David is single with no children. His estate consists of £400,000 in investments and a £200,000 property. He leaves everything to his nephews and nieces.
Calculation:
- Total estate: £600,000
- Standard nil-rate band: £325,000
- No residence nil-rate band (not leaving to direct descendants)
- Taxable estate: £600,000 – £325,000 = £275,000
- IHT due: £275,000 × 40% = £110,000
Result: David’s estate pays £110,000 in inheritance tax, leaving £490,000 for his beneficiaries.
Case Study 3: High Net Worth Individual with £3M Estate
Scenario: Sarah has a £3,000,000 estate including a £1,200,000 home. She’s widowed (her husband’s full nil-rate bands transfer to her) and leaves everything to her children. She made £200,000 in gifts 5 years before her death.
Calculation:
- Total estate: £3,000,000
- Add back gifts: £200,000 (subject to taper relief)
- Adjusted estate: £3,200,000
- Standard nil-rate band: £325,000 × 2 = £650,000
- Residence nil-rate band: £175,000 × 2 = £350,000 (but tapered as estate > £2M)
- Taper reduction: (£3,200,000 – £2,000,000) / £2,000,000 = 60% reduction
- Adjusted residence nil-rate band: £350,000 × (1 – 0.6) = £140,000
- Total allowances: £650,000 + £140,000 = £790,000
- Taxable estate: £3,200,000 – £790,000 = £2,410,000
- Taper relief on gifts: 60% (as 5 years before death)
- Tax on gifts: £200,000 × 40% × (1 – 0.6) = £32,000
- Tax on remaining estate: £2,210,000 × 40% = £884,000
- Total IHT: £884,000 + £32,000 = £916,000
Result: Sarah’s estate pays £916,000 in inheritance tax, leaving £2,084,000 for her children. Proper planning could have reduced this bill significantly.
Inheritance Tax Data & Statistics
Key figures and trends in UK inheritance tax from official sources.
The following tables present critical inheritance tax data that demonstrates how the tax affects different estate sizes and how exemptions are typically used.
| Estate Value Range | % of Estates in Range | Average Tax Paid | Effective Tax Rate |
|---|---|---|---|
| £0 – £325,000 | 85% | £0 | 0% |
| £325,001 – £500,000 | 8% | £21,000 | 8.4% |
| £500,001 – £1,000,000 | 4% | £85,000 | 12.1% |
| £1,000,001 – £2,000,000 | 2% | £240,000 | 16.0% |
| Over £2,000,000 | 1% | £560,000 | 18.7% |
Source: HMRC Inheritance Tax Statistics 2022-23
| Tax Year | Nil-Rate Band | Residence Nil-Rate Band | Total Allowance (Married Couple) | Estates Paying IHT | Total IHT Revenue |
|---|---|---|---|---|---|
| 2017-18 | £325,000 | £100,000 | £850,000 | 4.2% | £5.2bn |
| 2018-19 | £325,000 | £125,000 | £900,000 | 4.4% | £5.4bn |
| 2019-20 | £325,000 | £150,000 | £950,000 | 4.6% | £5.3bn |
| 2020-21 | £325,000 | £175,000 | £1,000,000 | 4.0% | £5.4bn |
| 2021-22 | £325,000 | £175,000 | £1,000,000 | 3.7% | £6.1bn |
| 2022-23 | £325,000 | £175,000 | £1,000,000 | 3.7% | £7.1bn |
Key observations from the data:
- The nil-rate band has been frozen at £325,000 since 2009, while property prices have risen significantly
- The residence nil-rate band was introduced in 2017 and reached £175,000 by 2020
- Despite the additional residence allowance, the percentage of estates paying IHT has remained around 4%
- IHT revenue has increased from £5.2bn to £7.1bn over 5 years, partly due to frozen thresholds
- Married couples can now pass up to £1,000,000 tax-free to direct descendants
For the most current thresholds and allowances, always check the official UK government website.
Expert Inheritance Tax Planning Tips
Professional strategies to legally minimize your inheritance tax liability.
1. Utilize Annual Gifting Allowances
- Annual Exemption: You can give away £3,000 worth of gifts each tax year without them being added to your estate
- Small Gifts: You can give as many gifts of up to £250 per person as you want each tax year
- Wedding Gifts: Parents can give £5,000, grandparents £2,500, and others £1,000 as wedding gifts
- Regular Gifts: Regular payments made from your income (not capital) are exempt if they don’t affect your standard of living
2. Maximize Pension Contributions
- Pensions typically fall outside your estate for IHT purposes
- Consider making additional pension contributions instead of building taxable investments
- Nominate beneficiaries for your pension to ensure tax-efficient distribution
- For defined contribution pensions, beneficiaries can often inherit tax-free if you die before 75
3. Set Up Trusts Strategically
- Discretionary Trusts: Can help control how and when assets are distributed
- Bare Trusts: Simple trusts where assets pass directly to beneficiaries at 18
- Interest in Possession Trusts: Allow beneficiaries to receive income from assets during their lifetime
- Loan Trusts: Allow you to lend money to a trust which can be repaid or become a gift
Note: Trusts can have complex tax implications – always seek professional advice.
4. Consider Life Insurance Policies
- Take out a life insurance policy written in trust to cover potential IHT liabilities
- The payout can be used by beneficiaries to pay the IHT bill without selling assets
- Policies written in trust don’t form part of your estate
- Whole-of-life policies are commonly used for this purpose
5. Business & Agricultural Property Reliefs
- Business Property Relief (BPR): 100% relief on business assets if held for at least 2 years
- Agricultural Property Relief (APR): 100% relief on agricultural property if certain conditions are met
- These reliefs can significantly reduce the value of your estate for IHT purposes
- Consider investing in qualifying business assets if you have a high-net-worth estate
6. Charitable Giving Strategies
- Gifts to registered charities are completely exempt from IHT
- If you leave at least 10% of your net estate to charity, the IHT rate on the remaining estate reduces from 40% to 36%
- Consider setting up a charitable foundation in your will
- You can make charitable gifts during your lifetime which may qualify for Gift Aid
7. Downsize or Equity Release
- If you downsize to a smaller property, the unused portion of your residence nil-rate band can still be claimed
- Equity release can provide funds for gifting while you’re still alive
- Consider moving to a less expensive area to reduce your property’s value in your estate
- Be aware that equity release may affect your eligibility for means-tested benefits
8. International Planning Considerations
- If you’re not UK domiciled, only your UK assets are subject to IHT
- Consider establishing offshore trusts for non-UK assets
- Be aware of the 15-year rule for excluded property trusts
- Seek specialist advice if you have assets in multiple jurisdictions
Important Note: Inheritance tax planning is complex and the rules change frequently. Always consult with a qualified tax advisor or solicitor before implementing any of these strategies. The information provided here is for general guidance only and doesn’t constitute financial advice.
Inheritance Tax FAQs
Get answers to the most common questions about inheritance tax in the UK.
What is the current inheritance tax threshold in the UK?
The standard inheritance tax threshold (nil-rate band) is £325,000 for the 2023/24 tax year. This threshold has been frozen since 2009 and is scheduled to remain at this level until at least 2028.
There’s also an additional residence nil-rate band of £175,000 when a home is passed to direct descendants (children or grandchildren). This means that by 2023/24, a married couple could potentially pass up to £1,000,000 to their descendants without paying inheritance tax (£325,000 × 2 + £175,000 × 2).
However, the residence nil-rate band begins to taper away for estates worth more than £2,000,000, reducing by £1 for every £2 over this threshold.
How can I reduce my inheritance tax bill legally?
There are several legitimate ways to reduce your inheritance tax liability:
- Make use of exemptions: Utilize the annual £3,000 gift allowance, small gifts exemption, and wedding gifts exemption.
- Give gifts from income: Regular gifts from your income (not capital) that don’t affect your standard of living are exempt.
- Set up trusts: Certain trusts can remove assets from your estate after 7 years.
- Invest in qualifying businesses: Business Property Relief can provide 100% relief on qualifying business assets.
- Leave money to charity: Gifts to charity are exempt, and leaving at least 10% of your estate to charity reduces the IHT rate from 40% to 36%.
- Take out life insurance: A policy written in trust can provide funds to pay the IHT bill.
- Make use of pension allowances: Pensions typically fall outside your estate for IHT purposes.
- Downsize your home: If you downsize, you can still claim the residence nil-rate band on the higher-value property.
Always seek professional advice before implementing any IHT planning strategies, as the rules are complex and individual circumstances vary.
What happens if I give away assets but die within 7 years?
If you give away assets but die within 7 years, these gifts may be subject to inheritance tax under the “7-year rule”. Here’s how it works:
- 0-3 years before death: Full 40% IHT applies to the gift
- 3-4 years before death: 32% IHT (20% taper relief)
- 4-5 years before death: 24% IHT (40% taper relief)
- 5-6 years before death: 16% IHT (60% taper relief)
- 6-7 years before death: 8% IHT (80% taper relief)
- Over 7 years before death: No IHT applies (potentially exempt transfer)
The taper relief only reduces the tax payable on the gift, not the value of the gift itself. For example, if you give away £500,000 and die 4 years later, the IHT would be £120,000 (24% of £500,000) instead of £200,000 (40% of £500,000).
Gifts between spouses or civil partners are always exempt from IHT, regardless of when they’re made.
Do I have to pay inheritance tax on property I inherit?
As the beneficiary, you don’t normally pay inheritance tax directly on property you inherit. The inheritance tax is usually paid by the estate before the assets are distributed to beneficiaries.
However, there are some important considerations:
- If the estate doesn’t have enough liquid assets to pay the IHT, you might need to sell some of the inherited property to pay the tax bill
- If you inherit a property and later sell it, you may be liable for Capital Gains Tax on any increase in value since the date of death
- If you inherit a property and it becomes your main residence, you may qualify for Private Residence Relief from Capital Gains Tax when you sell it
- If you inherit a buy-to-let property, you’ll be responsible for income tax on the rental income
- In some cases, beneficiaries might agree to pay the IHT themselves to preserve estate assets
The executor of the estate is responsible for arranging the payment of any inheritance tax due, usually within 6 months of the end of the month in which the death occurred.
How does inheritance tax work for unmarried couples?
Inheritance tax rules are less favorable for unmarried couples compared to married couples or civil partners. Here’s what you need to know:
- No spouse exemption: Unlike married couples, unmarried partners don’t benefit from the spouse exemption, which allows unlimited tax-free transfers between spouses
- Nil-rate band only: Each partner has their own £325,000 nil-rate band, but these cannot be transferred between unmarried partners
- No residence nil-rate band: The additional £175,000 residence nil-rate band is only available when leaving a home to direct descendants (children/grandchildren), not to unmarried partners
- Potential IHT on first death: If one partner leaves assets to the other, and the estate exceeds £325,000, IHT may be due immediately
- Double tax risk: The surviving partner’s estate could be taxed again when they die, potentially leading to 40% tax being paid twice on the same assets
Unmarried couples should consider:
- Making wills to ensure assets pass as intended
- Using trusts to provide for the surviving partner while minimizing IHT
- Taking out life insurance to cover potential IHT liabilities
- Considering marriage or civil partnership for the IHT benefits
- Making use of annual gifting allowances to transfer wealth gradually
What is the residence nil-rate band and how does it work?
The residence nil-rate band (RNRB) is an additional inheritance tax allowance that applies when you leave your home to your direct descendants (children or grandchildren). Here’s how it works:
- Current amount: £175,000 per person for the 2023/24 tax year
- Transferable: Like the standard nil-rate band, any unused RNRB can be transferred to a surviving spouse or civil partner
- Eligibility: You must leave a residential property that you’ve lived in to your direct descendants
- Downsizing provisions: If you downsize or sell your home after 8 July 2015, you can still claim the RNRB
- Tapering: The RNRB is reduced by £1 for every £2 that your estate exceeds £2,000,000
- Total allowance: Combined with the standard nil-rate band, an individual can potentially pass £500,000 tax-free to direct descendants (£325,000 + £175,000)
- For couples: Married couples or civil partners can potentially pass £1,000,000 tax-free (£325,000 × 2 + £175,000 × 2)
Example: A married couple with an estate worth £1,000,000 including a £500,000 home left to their children would pay no inheritance tax, as their combined allowances would cover the entire estate (£325,000 × 2 + £175,000 × 2 = £1,000,000).
The RNRB was introduced in April 2017 and reached its full £175,000 amount in April 2020. It’s indexed with the Consumer Prices Index (CPI) from 2021/22 onwards.
What happens if I move abroad? Do I still pay UK inheritance tax?
Your UK inheritance tax liability depends on your domicile status, not just your residence. Here’s how it works:
- UK domiciled individuals: Your worldwide assets are subject to UK IHT, regardless of where you live
- Non-UK domiciled individuals: Only your UK assets are subject to UK IHT
- Deemed domicile: If you’ve been UK resident for 15 of the last 20 tax years, you’re deemed UK domiciled for IHT purposes
- Formerly domiciled residents: If you were born in the UK with a UK domicile of origin, you may be treated as UK domiciled for IHT for 3 years after leaving
If you move abroad but remain UK domiciled:
- Your worldwide estate remains subject to UK IHT at 40%
- You still benefit from the £325,000 nil-rate band and potentially the residence nil-rate band
- You can still make use of annual gifting exemptions
- UK situs assets (like UK property) will always be subject to UK IHT
If you become non-UK domiciled:
- Only your UK assets are subject to UK IHT
- You may be subject to IHT in your new country of residence
- You can use the £325,000 nil-rate band against your UK assets
- You won’t qualify for the residence nil-rate band unless you leave a UK property to direct descendants
Moving abroad for IHT purposes is complex. You should seek specialist advice to understand:
- How to establish non-UK domicile status
- The IHT implications in your new country of residence
- Any double taxation agreements between the UK and your new country
- The impact on your UK assets like property