Britain’s Pension System Part 3: The IHT Reckoning

The End of the Story Begins Here

In Part 1, we traced the golden age of occupational pensions: how post-war Britain built a world-leading system that gave 12 million working people a guaranteed income in retirement. In Part 2, we documented how four structural dominoes — the Social Security Act 1986, the 105% surplus cap combined with the Maxwell scandal, the Minimum Funding Requirement, and Gordon Brown’s removal of ACT credits — systematically dismantled that system over two decades.

Now the historical journey arrives at its conclusion. April 2027 is where the consequences become real. Everything that was dismantled over four decades now collides with a single date.

The generation that lost its defined benefit pensions was told that defined contribution pensions were the future. Save into your own pot, manage your own risk, and at least your pension fund will pass to your family free of inheritance tax when you die. That last point — the tax-free death benefit — has been one of the few remaining consolations of the DC pension system.

From 6 April 2027, that consolation is removed.

The Three-Tax Cascade

The phrase “pensions will be subject to inheritance tax” is technically accurate but dramatically understates what actually happens. The reality is not a single tax. It is a cascade of three separate tax charges that, in combination, can produce an effective tax rate that most people would consider impossible in a modern democracy.

Tax 1: Inheritance Tax at 40%

From April 2027, the value of unused defined contribution pension funds is included in the estate for inheritance tax purposes. Where the estate exceeds the available nil rate bands, inheritance tax is charged at 40% on the pension value.

For a couple with a combined nil rate band of £650,000 and a residence nil rate band of up to £350,000, the threshold before IHT bites is £1 million. But many families with pension wealth are already above this level when property, savings and other assets are included.

Tax 2: Loss of the Residence Nil Rate Band Through Taper

This is the tax that almost nobody sees coming. The Residence Nil Rate Band (RNRB) provides an additional £175,000 per person (£350,000 for a couple) when a home is left to direct descendants. But it is subject to a taper: for every £2 the estate exceeds £2 million, £1 of RNRB is lost.

Adding a pension fund to the estate can push the total estate value over £2 million, triggering the taper. For a couple, the RNRB is completely wiped out when the estate reaches approximately £2,350,000. The loss of £350,000 of RNRB generates an additional inheritance tax charge of £140,000 (40% of £350,000).

This is not a separate tax. It is a consequence of the pension pushing the estate into the taper zone. But the effect is identical: more tax payable, caused directly by the inclusion of the pension.

Tax 3: Income Tax on Beneficiary Drawdown

After inheritance tax has been charged on the pension fund, the remaining balance does not arrive in the beneficiary’s hands tax-free. When a beneficiary draws down the inherited pension (for deaths after age 75), they pay income tax at their marginal rate.

For a higher rate taxpayer, that is 40%. For an additional rate taxpayer, 45%. But the most punishing scenario occurs when the drawdown income falls within the personal allowance taper band: between £100,000 and £125,140 of adjusted net income, the effective marginal rate of income tax is 60%.

That is not a theoretical number. It is the mathematical outcome of three tax charges applying to the same pension fund, each calculated independently, each taking its share.

The Structural Constraint Nobody Talks About

When people discover the scale of the Three-Tax Cascade, the immediate question is: “Can I move the pension out of my estate?”

The answer exposes a structural constraint that is unique to pensions and almost universally misunderstood.

Defined contribution pension funds are held under trust by scheme trustees. They are not legally owned by the member. The member has a right to draw benefits, and a right to express a wish about who should receive the fund on death. But the fund itself does not belong to the member in the way that a house, a bank account, or a share portfolio belongs to them.

This matters enormously for planning purposes. Because the member does not legally own the pension fund, they cannot make a Potentially Exempt Transfer (PET) or a Chargeable Lifetime Transfer (CLT) of pension assets. They cannot gift the pension. They cannot settle it into a trust. They cannot transfer it to their children during their lifetime.

Under IHTA 1984 s3A, a PET requires a transfer of value by the individual. Under FA 2004 Part 4, pension assets are held by the scheme trustees, not the individual. The two provisions are structurally incompatible. No amount of clever structuring can overcome this.

Planning is therefore limited to what surrounds the pension: nomination strategy, drawdown timing, and structures that create liquidity to meet the tax bill.

The Four-Step Planning Hierarchy

Within these constraints, there is a clear hierarchy of planning actions. Each step is practical, implementable, and available to most people. None requires exotic structures or aggressive tax avoidance.

Step 1: Nomination Review

Every pension scheme allows members to express a wish about who should receive the fund on death. This “expression of wish” is not legally binding on trustees, but in practice it is almost always followed.

Before April 2027, nomination decisions carried limited tax consequences. After April 2027, they carry substantial consequences. Nominating a spouse still attracts the spousal exemption on first death. Nominating children directly may accelerate the IHT charge but avoid the double exposure on second death. The correct choice depends on the wider estate structure, the ages involved, and the tax positions of the intended beneficiaries.

Every pension member should review their expression of wish to ensure it reflects the post-2027 reality. Many nominations were made years ago, under entirely different assumptions.

Step 2: Drawdown Strategy

The timing and quantum of pension withdrawals matters more after April 2027 than ever before. Every pound withdrawn from the pension during lifetime is a pound removed from the IHT calculation on death.

This does not mean drawing down the entire pension immediately. It means considering whether strategic withdrawals, particularly where they can be made at lower marginal income tax rates, reduce the overall tax burden on the family. The trade-off between income tax now and IHT plus income tax later requires careful modelling.

Step 3: Whole of Life Written in Trust

If the pension cannot be moved out of the estate, the next question is: how does the family pay the tax bill? Inheritance tax on pensions will be due before the pension fund is accessible to beneficiaries. Executors face a funding gap.

A whole of life insurance policy written in trust provides guaranteed, immediate liquidity at the point of death. Because the policy is held in trust, the proceeds fall outside the estate and are not themselves subject to IHT. The death benefit pays the tax bill, and the pension fund can then be drawn down by beneficiaries without the pressure of an immediate tax liability.

This is not a new concept, but the inclusion of pensions in IHT makes it newly essential for a much wider group of families.

Step 4: Relevant Life for Business Owners

For business owners and directors, relevant life insurance provides an additional planning opportunity. Premiums are paid by the company as an allowable business expense, attract no benefit-in-kind charge, and the policy proceeds are held in trust outside the estate.

This is particularly valuable for owner-directors whose pension funds are substantial and whose estates are already above IHT thresholds. The company effectively funds the IHT solution at a fraction of the personal cost.

Why This Is Not Just About the Wealthy

There is a persistent assumption that inheritance tax planning is only relevant to the wealthy. The April 2027 pension changes demolish that assumption entirely.

Consider an ordinary couple. They own a three-bedroom detached house worth £500,000. They have savings and investments of £200,000. One of them has a pension fund of £400,000, accumulated over a lifetime of auto-enrolment and workplace contributions. Their combined estate is £1,100,000.

Before April 2027, the pension sits outside the estate. Their taxable estate is £700,000, which is covered by the combined nil rate band (£650,000) and RNRB (£350,000). No IHT is payable.

After April 2027, the pension is included. Their taxable estate becomes £1,100,000. The nil rate bands and RNRB cover £1,000,000. IHT at 40% is payable on £100,000: a bill of £40,000. And if the pension is then drawn down by a beneficiary who falls into the personal allowance taper, income tax takes a further slice.

These are not wealthy people by any reasonable definition. They are Mr and Mrs Miggins in their three-bed detached house, who did the right thing, saved into their pensions, and now find that the rules have changed around them.

The tools that were historically reserved for the wealthy — trusts, insurance structures, coordinated estate planning — are now essential for ordinary families. The ceiling has come down.

An 87.2% Tax Rate Is Not Inevitable

The Three-Tax Cascade sounds devastating, and in the worst case it is. But it is not inevitable. With proper planning, the cascade can be reduced, mitigated, or in some cases largely eliminated.

• Nomination review ensures the pension is directed in the most tax-efficient way
• Drawdown strategy can remove value from the estate during lifetime at lower tax rates
• Whole of life in trust creates guaranteed liquidity so the family never has to choose between paying the tax bill and preserving the pension
• Relevant life allows business owners to fund the solution through the company

None of these steps is aggressive. None is artificial. Each addresses a genuine, legitimate need created by a genuine change in the law.

But the planning must start now. Insurance underwriting requires current good health. Drawdown strategies take time to implement. Nomination reviews need to be completed before they are needed, not after.

The pension system that post-war Britain built was a remarkable achievement. The four dominoes that dismantled it were a policy failure of historic proportions. And April 2027 is the moment when the final consequences of that failure land on ordinary families.

An 87.2% tax rate is not inevitable. But it is the default outcome for those who do nothing.