For decades, pensions have sat outside a person’s estate for Inheritance Tax purposes – one of the most effective ways to pass on wealth tax-efficiently – but that’s about to change. The HMRC inheritance tax changes 2027 will bring most unused pension funds and death benefits into the scope of IHT for the first time, and the rules are no longer just a proposal.

The Finance Act 2026 received Royal Assent in March 2026, confirming an implementation date of 6 April 2027. We’re already having this conversation with a number of our clients, and it’s one worth having early, especially if you hold a meaningful pension pot. This is a change worth understanding now, while there’s still time to plan around it, with the current rules still offering options that won’t exist once the reform takes effect.

Understanding the UK Pension Inheritance Tax Reform

Under the current rules, most defined contribution pensions can be passed to beneficiaries free of Inheritance Tax, regardless of the pension holder’s age at death. This is a result of the discretionary trust structure on which most schemes are built. 

It’s one of the reasons many people have used pensions not just for retirement income, but as a vehicle for passing on wealth to children or grandchildren. For those who’ve built a sizeable pot over a working life, this has often been a quiet but significant part of their overall estate plan.

From April 2027, that changes. Unused pension funds and most death benefits will be added to the value of your estate when calculating Inheritance Tax. In practice, this means a pension that was previously “outside” your taxable estate will, in most cases, now be included in it. This has the potential to push estates that were previously under the nil-rate band threshold into taxable territory, or increase the IHT bill on estates that were already liable. 

Personal representatives will also take on new reporting responsibilities under the reform, which is likely to make settling an estate involving a pension more procedurally involved than it has been.

Who This Affects

This change matters most for anyone with a substantial pension pot – say £500,000 or more – particularly when it sits alongside other assets such as property, savings, or investments. If your total estate, including your pension, is likely to exceed £1 million, the impact of this reform is worth taking seriously.

The eventual position also depends on who’s intended to inherit. Transfers to a spouse or civil partner can benefit from the normal IHT spouse exemption, whereas wealth ultimately intended for children or other beneficiaries may produce a different outcome. 

It’s a common assumption that a pension “doesn’t count” toward IHT, and we still speak to clients who are surprised to learn otherwise. Many people have built retirement and legacy plans around that basis for years, structuring how and when they draw an income specifically to preserve their pension as a tax-efficient asset to pass on. 

The 2027 changes remove that assumption, meaning plans built under the old rules may now need a second look. Not just for the pension itself, but for how it interacts with the rest of the estate.

A Common Example For Us

We often talk clients through personal scenarios like this one: consider someone with a home worth £1,000,000, ISAs worth £250,000, and a pension fund worth £1,250,000. Under the current rules, only the £1,250,000 in property and ISAs is assessed for Inheritance Tax (less allowances), with the pension passing to beneficiaries separately and tax-efficiently.

From April 2027, the pension is added into the estate calculation. That same estate is now assessed at £2.5 million rather than £1.25 million, before applying any available exemptions or allowances. This is a substantial increase in the value potentially subject to IHT and could mean a significant jump in the tax bill for beneficiaries.

The exact impact depends on individual circumstances, available allowances, and the estate’s structure, but the direction of travel is clear. More of your pension is likely to be taxed on death than under the current system, and the beneficiaries receiving it may end up with meaningfully less than originally intended.

Could the pension changes affect your Residence Nil Rate Band?

For larger estates, there could well be another consideration. The Residence Nil Rate Band is tapered where an estate exceeds £2 million, reducing by £1 for every £2 above the threshold. Take the example above: once the pension is included, that estate rises from £1.25 million to £2.5 million – £500,000 over the taper threshold. At that level, the full £175,000 Residence Nil Rate Band is lost entirely, not just reduced. For families around or above this threshold, it’s another reason to review pension and estate planning together. 

It’s also worth keeping IHT separate from the income tax treatment of pension death benefits – the two are different considerations, and this article focuses on the IHT side of the change. 

The Golden Planning Window: What You Can Do Before April 2027

As the current rules still apply until April 2027, there’s a window, often referred to as the “golden planning year“, with clients where existing pension IHT treatment can still be used to plan ahead.  If you’ve been putting off a conversation about your pension because it felt like a problem for another day, the pension fund inheritance tax changes 2027 bring a natural deadline to that conversation. 

There’s no single right answer here, and “withdraw more before 2027” isn’t automatically the answer either. What makes sense depends on income tax, what happens to any capital you withdraw, your wider assets, spending needs, and gifting intentions. The more useful question is often which assets to use, retain, or pass on, and in what order. 

There are a few areas worth reviewing before the rules change:

Beneficiary nominations

Check who’s named to receive your pension on death, and whether they remain the right choice within your wider estate plan now that pensions are treated differently. This is about keeping your intentions aligned with the new rules, not about using nominations to change how the pension is taxed. 

Drawdown strategy

How and when you draw from your pension may need reconsidering, particularly if a large pot was earmarked primarily for inheritance rather than income. 

Some people may find it makes more sense to draw down more actively during their lifetime rather than preserving the full pot for beneficiaries. This isn’t automatically tax-efficient, though – pension withdrawals can create income tax liabilities, and if the proceeds simply accumulate elsewhere, they may remain within your estate anyway. 

Gifting and estate structuring

Broader estate-planning tools – gifting allowances, trusts, or restructuring how wealth is held – may become more relevant once pensions are included in the taxable estate. These carry their own rules and timeframes, so they’re also worth exploring well ahead of April 2027 rather than as a last-minute response.

Overall estate value

If this change pushes your estate over £1 million, it’s worth understanding how much of that increase in exposure you can realistically plan for, and how much is simply a new cost of the reform.

None of these decisions should be made in isolation, as the right approach depends on your full financial picture, your goals, and how the 2027 pension IHT changes interact with your existing plans. What works for one estate won’t necessarily work for another, and the window to act under the current rules is finite.

Why Advice Matters Now

This is a genuinely complex area, and getting it wrong – or leaving it too late – could mean a materially larger tax bill for the people you intend to benefit. It’s the kind of question we get asked in almost every review meeting at the moment. It’s also the kind of decision that rarely has an obvious “right answer” from the outside; the same set of rules can point in different directions depending on your family, your goals, and the rest of your estate. 

At WKM Wealth, we bring financial planning and investment management together under one roof, which means pension, estate, and investment decisions are made with the full picture in view rather than in isolation. With a low client-to-adviser ratio, you’re working with someone who actually knows your circumstances, not being passed between departments or asked to repeat your situation to someone new each time.

Plan Ahead of the Change

The HMRC inheritance tax changes 2027 represent one of the most significant shifts in pension and estate planning in years. The earlier you understand how it affects your position, the more options you’ll have while the current rules still apply.

Book a pension and estate review with our team, and we’ll talk through what this means for your plans while the window to act under the current rules remains open.