From 6 April 2027, most unused pension funds and death benefits will count as part of your estate for inheritance tax. That is the whole reform in one sentence, and it is now settled law: announced at the Autumn Budget on 30 October 2024, reshaped by a technical consultation, confirmed on 21 July 2025 and legislated in Finance Act 2026. Personal representatives (the executors or administrators of an estate) will be responsible for reporting and paying any tax due. Pensions passing to a spouse or civil partner stay exempt, and death in service benefits from registered pension schemes are excluded entirely.
This guide tells the full story of how the reform came about and what it says, stage by stage, with links to every primary source. It deliberately recommends nothing. If you want a practical walkthrough of what is changing and what it means for your own situation, our companion piece on the pensions and inheritance tax changes for 2027 covers that ground. If you want a quick sense of whether the change could affect your estate, the pensions IHT 2027 estimator lets you model your pension alongside your other assets in a couple of minutes. This article is written for readers in England and Wales, though the pension reform itself applies UK wide.
Why the government did this
The starting point is a quirk of history. When the 2015 pension freedoms arrived, defined contribution pensions became far more flexible in life, and they were already generous in death: because most schemes pay death benefits at the trustees' discretion, the money usually fell outside the deceased's estate and escaped inheritance tax altogether. Our explainer on the current rules for pension death benefits sets out that baseline in detail.
The Treasury's argument, made explicitly in the Budget documents and HMRC's consultation, is that this created a distortion. Pensions exist to fund retirement, but the tax treatment rewarded the opposite behaviour: spend your ISA and your savings first, preserve the pension untouched, and pass it on free of inheritance tax. Advisers openly built plans around it. By bringing unused funds into the estate, the government intends to remove the incentive to use pensions as a wealth transfer vehicle and to treat them, on death, like other savings. You can agree or disagree with that rationale; this page simply records it, because most consumer coverage of the reform skips the why entirely.
The timeline: from announcement to law
The reform took two years and five months to travel from announcement to statute, and the design changed materially along the way.
| Date | What happened |
|---|---|
| 30 October 2024 | Autumn Budget announcement: unused pension funds and death benefits to come into inheritance tax from 6 April 2027. Technical consultation opens the same day. |
| 22 January 2025 | Consultation closes after a 12 week window. |
| 21 July 2025 | Government response and policy paper published, with draft legislation. Liability moves from pension schemes to personal representatives. Death in service benefits confirmed as excluded. |
| 18 March 2026 | Finance Act 2026 receives Royal Assent, amending the Inheritance Tax Act 1984 to bring the reform into law. |
| Spring 2027 (expected) | HMRC to publish full guidance and supporting materials, per its published timetable. |
| 6 April 2027 | Commencement: the new rules apply to deaths on or after this date. |
For a date-by-date view with the practical deadlines around each milestone, see our pension IHT 2027 timeline and key dates hub.
Stage one: the October 2024 consultation
The consultation, Inheritance Tax on pensions: liability, reporting and payment, ran from 30 October 2024 to 22 January 2025. Its scope was narrower than many people assume. The policy decision itself, that unused funds and death benefits would enter the inheritance tax net, was not up for debate. What HMRC consulted on was the machinery: who should value the pension, who should report it, and who should physically pay the tax.
The original proposal put pension scheme administrators at the centre. Each scheme would have calculated and paid its share of the estate's inheritance tax directly to HMRC. Respondents, including pension providers, lawyers and accountancy bodies, pushed back hard: estates often hold several pensions, schemes cannot see the rest of the estate, and splitting one tax bill across multiple administrators risked delay, error and double handling during bereavement.
Stage two: the July 2025 response, and the big design change
On 21 July 2025 the government published its response and policy paper alongside draft legislation. The headline concession: liability moved from pension schemes to personal representatives. The people who already administer the estate for inheritance tax purposes will handle the pension element too, with schemes required to supply valuations and information rather than to operate the tax themselves. If you are, or expect to be, an executor, our executors hub explains what the role already involves; this reform adds the pension to that existing job.
The response also locked in the boundaries of the charge:
- Death in service benefits payable from registered pension schemes are excluded, whether or not the scheme pays them at its discretion.
- Spouse and civil partner exemption continues to apply, so pensions passing to a surviving spouse or civil partner attract no inheritance tax. Charity death benefits also remain exempt.
- Most other unused funds and lump sum death benefits come into the estate, regardless of scheme discretion. What counts as unused is a question with real edge cases, which our deep dive on unused pension pots and inheritance tax in 2027 works through.
To answer the obvious funding problem, tax due on money the family may not yet be able to touch, the design allows schemes to withhold up to 50% of the pension amount for up to 15 months after the end of the month of death, so the inheritance tax attributable to the pension can be paid from the pension itself.
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Stage three: Finance Act 2026
Finance Act 2026 received Royal Assent on 18 March 2026 and wrote the reform into law, amending the Inheritance Tax Act 1984 (with consequential changes to pensions tax legislation) for deaths on or after 6 April 2027. From that point the reform stopped being a proposal and became statute. The Act will be supported by secondary legislation, principally covering the information sharing requirements between personal representatives and pension scheme administrators.
HMRC's technical note on Inheritance Tax on pensions is the working document for the mechanics: how pensions are valued, how the withholding notice operates, and the indicative timetable, which runs through to spring 2027 for full guidance. That timing deserves a plain statement rather than a gloss: the final HMRC guidance is not expected until weeks before the rules go live. The law is settled; some of the administrative detail is still being finished. Any article that presents every procedural question as already answered is ahead of the official record.
Who the reform actually affects
HMRC's published estimates, from the July 2025 policy costings, are specific. Around 10,500 estates a year are expected to become liable for inheritance tax for the first time because a pension now tips them over the threshold. A further 38,500 estates that would have paid some inheritance tax anyway will pay more, by around £34,000 on average. Set against roughly 600,000 deaths a year in the UK, most estates will still pay nothing, because tax only arises where the estate, now including the pension, exceeds the nil-rate band of £325,000 (frozen until 5 April 2031), plus the £175,000 residence nil-rate band where it applies, with anything passing to a spouse or civil partner exempt on top. Our inheritance tax pillar guide explains how those thresholds stack.
The people most exposed are those with substantial defined contribution pots they do not expect to spend, unmarried partners (who get no spouse exemption), and homeowners in higher-value areas whose estates were already near the threshold before adding a pension. We publish ongoing analysis of the affected population on our research page, pensions and inheritance tax 2027, and a dedicated audience hub at for pension holders.
What this reform is not
Three common confusions are worth clearing up. First, this is not the lifetime allowance. The lifetime allowance was an income tax measure on large pensions, abolished from April 2024; the 2027 reform is an inheritance tax measure on death and is entirely separate. Second, it is not retrospective: deaths before 6 April 2027 stay under the current rules. Third, it does not change income tax on inherited pensions. Where the member dies at age 75 or over, beneficiaries still pay income tax on what they draw, which is why commentators note that some inherited pension money can now face both taxes in sequence.
Where to go from here
Nothing in this guide is financial or tax advice, and the right response to the reform depends entirely on individual circumstances; anyone considering changes to their pension arrangements should speak to a regulated financial adviser. For the reading list, the primary sources linked above are the authoritative record, and our companion articles cover the practical questions this guide deliberately leaves alone. If you would like to be connected with a vetted estate planning specialist who deals with pension and inheritance tax questions, we can arrange that, and there is no obligation attached. In the meantime, the pensions IHT 2027 estimator is the quickest way to see whether the numbers in this reform are likely to touch your estate at all.