13.2 Inheritance & Estate Taxes

13.2 Inheritance & Estate Taxes

Inheritance Tax (IHT) is a capital tax that strikes at the intergenerational transmission of accumulated wealth. Governed primarily by the Inheritance Tax Act 1984 (IHTA 1984), IHT is levied on gratuitous "transfers of value"—defined as any disposition made by an individual that results in a diminution in the value of the transferor's estate. In private wealth management, estate planning aims to preserve family wealth, mitigate catastrophic tax liabilities upon death, and maintain orderly business and asset succession without compromising the client's lifetime standard of living.

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Scope of Inheritance Tax and Estate Valuation

Inheritance Tax applies across two primary dimensions:

1. Deemed Transfers on Death: An individual is deemed to make a transfer of value immediately prior to death equal to the net market value of their entire worldwide estate if they are a long-term resident (LTR), or of their UK-situated assets only if they are not. Since 6 April 2025 the connecting factor for IHT is residence, not domicile: an individual is an LTR once they have been UK tax resident for at least 10 of the previous 20 tax years, and remains within worldwide scope for a "tail" of between 3 and 10 further years after leaving, scaled to how long they were resident. The old deemed domicile 15-of-20 test was abolished on the same date.
2. Lifetime Transfers: Certain gratuitous transfers made during life are either immediately chargeable or brought back into account if the transferor dies within a statutory multi-year clawback window.

Net Estate Valuation on Death

The deceased's gross estate comprises all property, cash, investments, real estate, personal chattels, and the benefit of life assurance policies not written in trust. From this gross total, executors deduct:

• Allowable Debts and Liabilities: Outstanding mortgages, commercial loans, credit card balances, and unpaid utility bills incurred for full consideration;
• Reasonable Funeral Expenses: Commensurate with the deceased's station in life;
• Exempt Transfers and Reliefs: Transfers to surviving spouses, qualifying charitable bequests, Business Relief, and Agricultural Relief.

The resulting figure represents the net taxable estate.

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Nil-Rate Bands and Statutory Thresholds

1. The Standard Nil-Rate Band (NRB)

The Nil-Rate Band (NRB) is the statutory baseline allowance within which estate transfers are taxed at 0%. It has been frozen at £325,000 per individual. Any portion of the net taxable death estate exceeding the available NRB is taxed at the headline rate of 40%.

Charitable Reduction to 36%: If an individual bequeaths at least 10% of their net baseline estate (estate value after deducting NRB, exemptions, and reliefs) to qualifying registered charities, the IHT rate on the remainder of the taxable estate is reduced from 40% to 36%.

2. The Residence Nil-Rate Band (RNRB)

Introduced to protect family homes from being liquidated to fund death duties, the Residence Nil-Rate Band (RNRB) provides an additional allowance of up to £175,000. To qualify for the RNRB:

• The deceased must have owned a qualifying residential interest (a residential property that was at some point occupied by the deceased as their residence; buy-to-let rental properties never lived in by the deceased do not qualify);
• The property (or proceeds representing it under statutory downsizing provisions) must be closely inherited by direct descendants (children, grandchildren, great-grandchildren, adopted children, foster children, step-children, and their spouses or civil partners; siblings, nephews, and nieces do not qualify).

RNRB Tapering Mechanism

To prevent the wealthiest estates from capturing the benefit of the family home allowance, a statutory taper applies:

• Where the net estate (calculated before deducting reliefs such as Business Relief or Agricultural Relief) exceeds £2,000,000, the RNRB is tapered down by £1 for every £2 of value above £2,000,000.
• Consequently, an individual estate exceeding £2,350,000 (£2,000,000 + [2 × £175,000]) loses the RNRB entirely.

3. Transferable Nil-Rate Bands Between Spouses

Under Section 8A of the IHTA 1984, any unused percentage of the Nil-Rate Band and Residence Nil-Rate Band on the death of the first spouse or registered civil partner is fully transferable to the surviving spouse's estate upon their subsequent death:

• It is the unused percentage, not the historical monetary figure, that transfers. If Spouse 1 used only 20% of their NRB on death in 1995, the remaining 80% is carried forward and applied against the prevailing NRB at the date of Spouse 2's death.
• A married couple or civil partnership with qualifying residential property left to children can achieve a combined tax-free threshold of £1,000,000:

$\text{Combined Threshold} = (\text{NRB}_1 + \text{NRB}_2) + (\text{RNRB}_1 + \text{RNRB}_2) = (£325,000 \times 2) + (£175,000 \times 2) = £1,000,000$

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Lifetime Gifting Regimes

Lifetime gifting is the cornerstone of proactive inheritance tax mitigation. The tax code categorizes lifetime transfers into three distinct regimes:

Lifetime Transfer Categories:
1. Fully Exempt Transfers (immediately and permanently exempt)
2. Potentially Exempt Transfers (PETs: gifts to individuals; exempt after 7 years)
3. Chargeable Lifetime Transfers (CLTs: gifts into relevant property trusts; immediate 20% tax)

1. Fully Exempt Transfers

Exempt transfers are permanently excluded from IHT calculations, never utilize the donor's Nil-Rate Band, and do not trigger a clawback regardless of when the donor dies:

• Spouse / Civil Partner Exemption: Unlimited 100% exemption on transfers between spouses or civil partners who are both long-term residents, during life or on death. Where the transferor is a long-term resident but the recipient is not, the exemption is capped at a lifetime limit equal to the prevailing NRB (£325,000), unless the recipient makes an election to be treated as a long-term resident for IHT purposes (accepting worldwide scope in exchange for the unlimited exemption). Before 6 April 2025 this same cap was expressed by reference to domicile rather than long-term residence;
• Annual Exemption: £3,000 per donor per tax year. Any unused allowance can be carried forward for exactly one tax year (the current year's £3,000 must be utilized before the brought-forward allowance);
• Small Gifts Exemption: Up to £250 per recipient per tax year, provided the donor has not made any other gifts to the same individual in that tax year;
• Gifts in Consideration of Marriage / Civil Partnership: Must be made on or shortly before the wedding: £5,000 from a parent; £2,500 from a grandparent or party to the marriage; £1,000 from any other person;
• Normal Expenditure Out of Income Exemption (Section 21 IHTA 1984): One of the most powerful wealth transfer tools. Gifts of any magnitude are completely exempt if they satisfy three strict statutory tests:
  1. The gift formed part of the habitual or normal expenditure of the donor (established by a regular pattern or demonstrable commitment);
  2. The gift was made out of after-tax income (not capital or asset sales);
  3. After making the gifts, the donor retained sufficient income to maintain their normal standard of living.
• Charitable Gifts: Outright lifetime transfers to registered charities and qualifying political parties are 100% exempt.

2. Potentially Exempt Transfers (PETs)

A Potentially Exempt Transfer (PET) is an outright gift made by an individual to another individual (or into a qualifying trust for a disabled person). Its tax treatment is contingent on the donor's longevity:

• The 7-Year Survival Rule: If the donor survives for seven full years (84 months) from the exact date of the gift, the PET becomes fully and permanently exempt from IHT.
• Failed PETs (Death within 7 Years): If the donor dies within seven years of making the gift, the PET fails and becomes a chargeable transfer. The value of the failed PET is assessed against the donor's Nil-Rate Band in priority to the death estate (chronological order of transfers).

The 7-Year Taper Relief Mechanics

If the cumulative value of failed PETs made within the seven years prior to death exceeds the available Nil-Rate Band (£325,000), tax becomes payable by the recipient of the gift. Taper relief reduces the tax payable (not the underlying capital value of the gift) according to the time elapsed between the gift and death:

Critical Syllabus Rule: Taper relief only applies to the tax payable on gifts that exceed the Nil-Rate Band. If a failed PET of £200,000 is made 5 years before death, it is fully absorbed by the £325,000 NRB. Zero tax is payable on the gift, meaning taper relief is entirely irrelevant to that gift; however, it reduces the NRB available to the death estate to £125,000, increasing the tax on the death estate without any taper relief reduction.

3. Chargeable Lifetime Transfers (CLTs)

A Chargeable Lifetime Transfer (CLT) occurs when an individual transfers value into a relevant property trust (such as a discretionary trust) or certain corporate entities:

• Immediate Lifetime Tax: If the cumulative value of CLTs made in the preceding seven-year lookback period exceeds the available Nil-Rate Band (£325,000), an immediate lifetime IHT charge of 20% is levied on the excess.
• Grossing Up: If the donor (settlor) pays the lifetime tax rather than the trustees, the tax is calculated on the net loss to the donor's estate, resulting in an effective "grossed-up" rate of 25% (20 / 80).
• Death Within 7 Years: If the settlor dies within seven years of establishing the CLT, the transfer is reassessed at the full 40% death rate, subject to taper relief. The estate receives full credit for the 20% lifetime tax already paid (though HMRC issues no refund if the lifetime tax exceeds the final death liability).
• Relevant Property Trust Ongoing Charges: Discretionary trusts are subject to ongoing IHT charges: periodic 10-year charges (capped at a maximum of 6% of the trust's net asset value above the prevailing NRB) and exit charges when capital is distributed to beneficiaries.

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Business Relief (BR) and Agricultural Relief (AR)

To ensure that family-owned businesses, private enterprises, and working farms do not need to be broken up or liquidated to fund estate taxes, Parliament enacted generous statutory reliefs under Part V of the IHTA 1984.

Business Relief (BR)

Business Relief (formerly Business Property Relief - BPR) reduces the taxable value of qualifying business assets transferred during life or on death by either 100% or 50%. The relief was materially restricted for transfers on or after 6 April 2026, and the current rules are what an examiner will test:

The £2.5 Million 100% Relief Allowance (from 6 April 2026)

Transfers on or after 6 April 2026 are subject to a single £2.5 million allowance per person covering the combined value of assets qualifying for 100% Business Relief and 100% Agricultural Relief. Value within the allowance attracts 100% relief; value above it attracts only 50% relief, producing an effective IHT charge of 20% on the excess. Any unused allowance is transferable between spouses and civil partners, so a couple can shelter up to £5 million of qualifying trading and agricultural assets at 100% relief on top of their nil-rate bands. The allowance was announced at £1 million in the Autumn 2024 Budget and raised to £2.5 million in December 2025 before it took effect. The practical consequence for wealth managers is that AIM "BR portfolios", historically marketed as a two-year route to full IHT exemption, now deliver at best a 50% reduction — an effective 20% death charge rather than 0%.

The Trading Test and Excluded Assets

To qualify for Business Relief, the enterprise must be a bona fide commercial business carried on for gain. Section 105(3) IHTA 1984 strictly excludes companies whose activities consist wholly or mainly of:

• Dealing in securities, stocks, or shares;
• Dealing in land or buildings;
• Making or holding investments (such as residential buy-to-let property portfolios or passive investment holding companies).

Furthermore, excepted assets (surplus cash or investment assets held within an otherwise qualifying trading company that are not required for future trading purposes) are carved out and subjected to full IHT.

Agricultural Relief (AR)

Agricultural Relief provides 100% or 50% relief on the agricultural value of agricultural land, pasture, farm woodlands, and agricultural cottages/farmhouses situated in the UK, Channel Islands, or Isle of Man, provided the property has been occupied by the owner for agricultural purposes for at least two years (or let to a tenant farmer for at least seven years).