Inheritance tax investments that reduce your bill work by moving wealth out of fully taxable forms, such as cash or listed shares, into assets that either qualify for a specific relief or sit outside your estate altogether. The main options are qualifying business assets held under Business Relief, shares acquired through the Enterprise Investment Scheme (EIS) or Seed Enterprise Investment Scheme (SEIS), AIM-listed shares, pensions, and life insurance policies written into trust. Each has been reshaped by rule changes in April 2026, with a further significant change to pensions arriving in April 2027, so a plan that worked five years ago may now leave a gap.
The Thresholds You Are Trying to Beat
Every individual has a nil-rate band of £325,000, and the estate pays no IHT on value up to that figure. The threshold has been frozen since 2009 and will stay at £325,000 until at least April 2030.1HM Revenue & Customs. Inheritance Tax Thresholds and Interest Rates Anything above it is taxed at 40% unless a relief applies.2GOV.UK. How Inheritance Tax Works: Thresholds, Rules and Allowances
A residence nil-rate band (RNRB) of £175,000 sits on top of the main allowance if you leave a qualifying home to direct descendants. It tapers by £1 for every £2 the estate exceeds £2 million and disappears entirely at £2.35 million.3GOV.UK. Inheritance Tax Nil-Rate Band and Residence Nil-Rate Band Thresholds From 6 April 2026 to 5 April 2028 A single person passing a home to children can therefore shield up to £500,000. Married couples and civil partners can combine unused allowances, giving up to £1 million between them.
Business Relief and the £2.5 Million Cap
Business Relief under sections 103 to 114 of the Inheritance Tax Act 1984 is the engine behind most IHT-efficient investments. It provides either 100% or 50% relief on the value of qualifying business assets.4HM Revenue & Customs. Shares and Assets Valuation Manual – SVM111010 – IHT Business Property Relief: Introduction From 6 April 2026, 100% BR is capped at a combined allowance of £2.5 million across all qualifying agricultural and business property. Value above the cap qualifies for 50% relief instead.5UK Parliament. Changes to Agricultural and Business Property Reliefs for Inheritance Tax If a spouse or civil partner died before you without using their allowance, it may be possible to carry it forward, potentially doubling the cap to £5 million.
Assets that qualify for 100% relief include a business you own outright, a share in a partnership, and shares in an unlisted trading company. Listed shares only qualify for 50% relief, and only if you held a controlling interest. The business must be actively trading rather than primarily holding investments, land, or property for rental.6GOV.UK. Business Relief for Inheritance Tax: Overview You must have owned the qualifying asset for at least two years before death.
AIM Shares After April 2026
Shares traded on the Alternative Investment Market are classified as unquoted for IHT purposes even though they trade on a market operated by the London Stock Exchange.7HM Revenue & Customs. Inheritance Tax Manual – IHTM25314 Before April 2026, that unquoted status entitled qualifying AIM holdings to 100% BR, effectively making them IHT-free. From 6 April 2026, AIM shares can only qualify for 50% Business Relief.4HM Revenue & Customs. Shares and Assets Valuation Manual – SVM111010 – IHT Business Property Relief: Introduction
With the standard IHT rate at 40%, that creates an effective 20% tax charge on AIM investments at death. A £500,000 AIM portfolio that would previously have passed free of IHT now faces roughly £100,000 in tax. Still better than the full 40% on cash or listed shares, but the calculus has shifted for anyone who chose AIM primarily for its tax treatment.
The two-year holding requirement applies, and not every AIM-listed company qualifies. The underlying business must meet the active trading test, so companies that mainly hold property or investments attract no BR regardless of listing. Specialist portfolio managers typically screen for eligibility, which matters more now that the relief is partial.
EIS and SEIS Shares
Shares acquired through the Enterprise Investment Scheme and Seed Enterprise Investment Scheme are, by definition, in unlisted companies. Once held for at least two years, they qualify for Business Relief. SEIS targets very early-stage companies with correspondingly higher risk; EIS covers a broader range of growing businesses. The IHT advantage in both cases flows from the same BR rules that apply to any qualifying unlisted trading company.
The 2026 changes apply here too. EIS and SEIS holdings count toward the £2.5 million combined allowance for 100% BR, shared with any other agricultural or business property in your estate.5UK Parliament. Changes to Agricultural and Business Property Reliefs for Inheritance Tax Excess value above the cap gets 50% relief. For most individual investors the cap will not bite, but anyone holding a substantial BR portfolio alongside farmland or a family business should model the combined position carefully.
Pensions and the April 2027 Change
Pension funds have long been the single most powerful IHT shelter. Most defined contribution pensions currently sit entirely outside the estate, meaning they are not counted when HMRC calculates the tax bill, regardless of pot size. If you die before age 75, beneficiaries can typically draw the pension tax-free. If you die at 75 or older, they pay income tax at their own marginal rate on withdrawals, but there is no IHT charge.8GOV.UK. Tax on a Private Pension You Inherit
From April 2027, the government has confirmed that most unused pension funds and death benefits will be brought within the scope of IHT. Pension wealth will be added to the rest of the estate for the tax calculation. The exemption for funds left to a UK-registered charity will continue, but for everyone else the pension pot will push many estates above the nil-rate band that previously cleared them. Anyone currently relying on pension wealth as an IHT-free legacy should review the plan well before April 2027.
Even after 2027, pensions will remain tax-efficient compared with holding the same wealth in a general investment account, because contributions attract income tax relief and growth inside the wrapper is tax-free. What ends is the specific IHT exemption that made pensions uniquely powerful for estate planning.
Life Insurance Policies Written in Trust
A whole-of-life insurance policy written into trust does not reduce the IHT your estate owes. It puts cash into your beneficiaries’ hands so they can pay the bill without selling the family home or liquidating investments at a bad time. When the policy sits inside a properly constituted trust, the payout goes directly to the trustees or beneficiaries rather than forming part of your legal estate, so the proceeds bypass both probate and the IHT calculation.
The trust needs to be set up correctly from the outset, and ideally the policy should be assigned to the trust before or at the point it is taken out. Transferring an existing policy into trust can itself be treated as a gift for IHT purposes, potentially triggering the seven-year rule. Premiums paid into the trust may also count as gifts, though they can often be covered by the annual gift exemptions or treated as normal expenditure out of income if paid regularly from surplus earnings.
Lifetime premiums are almost always significantly less than the 40% bill they cover, which is what makes the strategy worthwhile. For estates where the bulk of wealth is tied up in property or a family business, this liquidity can be the difference between heirs keeping assets and being forced into a fire sale.
Lifetime Gifts and the Seven-Year Rule
Giving assets away during your lifetime is the most direct way to reduce the estate, but it only works if you live long enough. Most outright gifts to individuals become “potentially exempt transfers” that fall completely outside IHT if you survive seven years. Die within the window and the gift is added back to your estate, with taper relief progressively reducing the tax rate:9GOV.UK. How Inheritance Tax Works: Thresholds, Rules and Allowances – Gifts
- Less than 3 years before death: 40%
- 3 to 4 years: 32%
- 4 to 5 years: 24%
- 5 to 6 years: 16%
- 6 to 7 years: 8%
- 7 years or more: 0%
Taper relief only matters if the cumulative value of gifts exceeds the nil-rate band. If total gifts in the seven years before death stay below £325,000, they simply absorb the nil-rate band without extra tax on the gifts themselves, though this reduces the allowance available for the rest of the estate.
Certain smaller gifts are exempt regardless of when you die. You can give away £3,000 per tax year under the annual exemption, carry one unused year forward, and make unlimited gifts of up to £250 per person on top of that. Regular payments from normal income, such as helping a child with rent or funding a grandchild’s savings account, are also exempt with no upper limit as long as you can comfortably afford them from your regular earnings. The normal-expenditure-out-of-income exemption is underused and genuinely powerful for people whose pension or investment income exceeds their living costs.
Fitting the Pieces Together
No single investment solves IHT on its own, and the 2026 and 2027 changes mean strategies that worked five years ago may now leave a gap. An estate worth £2 million with a family home, an AIM portfolio, and a large pension pot now needs to account for the 50% AIM relief, the £2.5 million BR allowance, and the pension’s impending loss of exempt status. The most resilient plans layer several approaches: keeping wealth in a pension for as long as it remains exempt, holding qualifying BR investments within the cap, using lifetime gifts to reduce the estate gradually, and backing the remainder with a life insurance policy in trust to cover whatever tax remains.
The residence nil-rate band adds another dimension. If you plan to leave your home to children, that £175,000 allowance could be the most valuable in the mix, but it vanishes for estates above £2 million.3GOV.UK. Inheritance Tax Nil-Rate Band and Residence Nil-Rate Band Thresholds From 6 April 2026 to 5 April 2028 For estates near the taper threshold, reducing value through gifts or BR investments can unlock the RNRB and save more than the face value of the relief itself. The sequencing matters, and the interaction between these allowances is where most people benefit from professional advice.