Spousal Bypass Trusts and Pension Death Benefits: A Planning Guide

Pension death benefits have long been one of the most effective vehicles for intergenerational wealth transfer. For those with significant pension pots — particularly Self-Invested Personal Pensions (SIPPs) — the ability to pass funds to the next generation largely free of inheritance tax has made pensions a deliberate estate planning tool as much as a retirement savings vehicle. But major changes are coming from April 2027. This guide explains the current position, the change, and how a spousal bypass trust interacts with pension planning.

How Pension Death Benefits Work (Current Rules to April 2027)

Under current rules (effective until 5 April 2027), defined contribution pension pots that have not been fully drawn as an annuity can typically be left to a nominated beneficiary on the member's death.

Death Before 75

If you die before age 75 with money in a flexi-access drawdown fund or an uncrystallised pension pot, the funds can be passed to nominated beneficiaries completely free of income tax (and generally outside your estate for IHT). Beneficiaries can draw the funds as a lump sum or continue to hold them in a beneficiary's drawdown fund.

Death After 75

If you die aged 75 or over, the funds can still be passed to nominated beneficiaries outside your estate for IHT purposes (under current rules), but income tax applies at the beneficiary's marginal rate when they draw the funds.

Pension Freedom and Estate Planning

The pension freedoms introduced in 2015 transformed the pension from a mandatory-annuity vehicle into a highly flexible estate planning structure. Many high-net-worth individuals have deliberately minimised pension drawdown — living off ISA and investment portfolio income — in order to preserve the pension pot for intergenerational transfer. The pension effectively becomes a dynastic tax-exempt trust.

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The Post-April 2027 IHT Reform

From 6 April 2027, most unused defined contribution pension death benefits are brought within the scope of inheritance tax. This reform was announced in the October 2024 Budget and has since been enacted in the Finance Act 2026, which received Royal Assent on 18 March 2026. It applies to deaths on or after 6 April 2027.

The New Position (From 2027)

Under the enacted reform:

• Unused pension funds and death benefits payable from defined contribution schemes will be included in the deceased member's estate for IHT purposes.
• The standard nil rate band (£325,000) and residence nil rate band (£175,000) will be available to offset the combined value of the taxable estate plus pension.
• Where the total estate (including pension) exceeds the available nil rate bands, IHT at 40% will apply to the excess.
• The deceased's personal representatives are liable for the IHT on the pension funds, working with pension scheme administrators who must report pension values to HMRC on the member's death.

For those with large pension pots and otherwise modest non-pension estates, this represents a significant change. A pension pot of £1 million previously outside the estate will now, in many cases, be partially or fully subject to 40% IHT.

What Is Not Changing

• The income tax treatment of pension death benefits is not changing.
• Defined benefit (final salary) pensions typically do not pass as a lump sum to beneficiaries in the same way — the rules for DB lump sum death benefits are different. Death-in-service benefits and dependants' scheme pensions are outside the scope of the reform.
• Some operational details of the reporting and payment mechanics continue to be finalised by HMRC.

Planning in Light of the Reform

Given the direction of travel, many pension holders are reconsidering whether maximum pension accumulation remains the optimal estate planning strategy. Key considerations:

• Drawdown earlier: Drawing pension income in a tax-efficient way during retirement (using the income to live on or to make lifetime gifts) reduces the pension pot that will be subject to IHT.
• Review nominations: Pension nominations will need to be reviewed in the context of the new IHT treatment. The interaction between pension death benefits and the nil rate band requires careful planning.
• Consider life insurance in trust: If pension death benefits become less tax-advantaged, a life insurance policy written in trust may become more attractive as a way to pass a defined sum outside the estate.

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Spousal Bypass Trusts for Pension Death Benefits

A spousal bypass trust is a discretionary trust, typically set up by a pension member, designed to receive pension death benefits without those benefits passing directly to the surviving spouse.

Why Not Simply Leave It to Your Spouse?

If pension death benefits are paid directly to a surviving spouse, they enter the spouse's estate. Upon the spouse's subsequent death, the funds — though not subject to IHT on the first death under the spouse exemption — will be included in the spouse's estate and taxed at 40% on the second death.

A spousal bypass trust receives the pension death benefits into the trust on the first death. The surviving spouse can be a beneficiary of the trust (and can benefit from the funds as needed), but the funds themselves are outside the spouse's estate. On the surviving spouse's death, the trust funds pass to the next generation or other beneficiaries without forming part of the estate.

How It Works

1. The pension member establishes a discretionary trust (the spousal bypass trust) during their lifetime, naming trustees (often a combination of the spouse and professional trustees).
2. The pension member completes a nomination of benefits form with their pension provider, directing that death benefits should be paid to the trustees of the spousal bypass trust.
3. On the member's death, the pension trustees (who have discretion — they are not legally obliged to follow the nomination) typically exercise their discretion to pay the death benefits to the spousal bypass trust.
4. The trustees of the spousal bypass trust manage and distribute funds to beneficiaries (including the surviving spouse) at their discretion.

Discretion in Practice

Pension trustees (not to be confused with the trustees of the bypass trust) have legal discretion over how death benefits are paid. They consider the nomination form as guidance, not a binding instruction. However, in practice, pension trustees almost always follow clearly expressed wishes where there is no reason not to.

Post-2027 Impact on Spousal Bypass Trusts

The April 2027 reform complicates the position. With pension death benefits brought within the IHT estate, paying them to a spousal bypass trust may create an IHT charge at that point (to the extent the estate including the pension exceeds the nil rate band), reducing but not eliminating the trust's benefit. The detailed interaction between the reform and bypass trust arrangements remains a technically complex area — this requires specialist advice as 2027 approaches.

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The Difference Between Spousal Bypass Trusts and Life Insurance Trusts

These are frequently confused but are distinct:

Feature	Spousal Bypass Trust	Life Insurance Trust
What it holds	Pension death benefits	Proceeds of a life insurance policy
When funded	On member's death	On policyholder's death
IHT treatment	Currently outside estate; changing 2027	Outside estate if properly written in trust
Set up timing	Before the member dies	Policy must be written in trust before death

Both structures keep the relevant funds outside the estate of the deceased, but they achieve this with different assets and different mechanisms. Many estate plans use both.

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Trust Registration Service (TRS) Obligations

Since October 2022, all UK express trusts must be registered with HMRC's Trust Registration Service (TRS) unless they qualify for an exclusion. Spousal bypass trusts, as discretionary trusts with assets, must be registered.

Registration requires:

• Details of the trust and its date of creation
• Trustee names and addresses
• Settlor details
• Beneficial class description
• Trust assets (where known)

The TRS register is not public — beneficial information is accessible only to HMRC and, in limited circumstances, law enforcement. Trusts must update their registration when circumstances change (e.g., change of trustees, significant change in asset value).

Failure to register is a criminal offence with potential penalties. Ensure any bypass trust or similar structure is promptly registered.

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Summary

Pension death benefits are one of the most complex and rapidly changing areas of wealth and estate planning. The key points:

• Under current rules (until April 2027), DC pension pots are largely outside the IHT estate — a powerful estate planning tool.
• From April 2027, unused pension funds will generally be brought within the IHT estate.
• Spousal bypass trusts can mitigate the cascading IHT problem where funds pass through a spouse's estate on second death.
• The interaction between the 2027 reform and bypass trust structures requires specialist advice.
• All relevant trusts must be registered on the TRS.

Nothing in this article constitutes personal advice. Estate planning rules are changing significantly — seek independent specialist guidance before making decisions.

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How Global Investments Can Help

Global Investments advises HNW clients on pension estate planning, spousal bypass trust structuring, and the implications of the 2027 IHT reform for their overall estate. We work with specialist trust and tax lawyers to ensure structures are properly implemented and maintained. Contact us to review your pension nominations and estate plan in light of the upcoming changes.