If you assessed your estate’s Inheritance Tax position a few years ago and concluded it wasn’t a concern, it may be worth taking another look. Several forces are combining to pull more households into scope, often without anyone actively deciding to become “wealthier” in any meaningful sense. Here are three of the biggest.
1. Frozen thresholds, rising asset values
The nil-rate band — the amount of an estate that passes free of Inheritance Tax — has been fixed at £325,000 since 2009 and is confirmed to remain frozen until April 2031. Over that same period, house prices and other asset values have generally continued to climb. When a threshold stays still while the things it measures keep moving, more people cross the line each year, even though no rule has technically “changed” for them individually. HMRC’s own data illustrates the direction of travel: annual Inheritance Tax receipts have risen from under £5 billion in the mid-2010s to around £8.5 billion in 2025/26, and the Office for Budget Responsibility’s November 2025 forecast puts receipts at roughly £14.5 billion by 2030/31.
2. House prices are expected to keep climbing
The OBR’s November 2025 Economic and Fiscal Outlook forecasts UK house prices to rise by more than 16% by 2030/31. If that plays out, a property worth around £270,000 today could be worth well over £300,000 within a few years — comfortably above the standard nil-rate band on its own, before other assets like pensions, savings, and investments are even counted. For homeowners in London and the South East, where average prices are already well above the national figure, the arithmetic is starker still.
3. Pensions are joining the estate for IHT purposes
For many years, pensions have sat outside a person’s estate for Inheritance Tax purposes — one of the more valuable, if lesser-known, quirks of the system. That is changing. From April 2027, most unused defined contribution pension funds will be brought within the scope of a person’s estate for Inheritance Tax. For families who have deliberately preserved pension savings as a tax-efficient way to pass on wealth, this is a meaningful shift in the planning landscape, and one that HMRC itself estimates could bring around 10,500 additional estates into a taxable position each year.
Putting the pieces together
None of these three factors is, by itself, necessarily dramatic. Together, though, they add up to a simple conclusion: more UK households are likely to face an Inheritance Tax liability in the coming years than have historically expected to, and the “am I affected?” question is worth revisiting periodically rather than answering once and filing away.
The encouraging news is that while the thresholds and rules are outside anyone’s control, the response to them is not. Reviewing your position, understanding your options, and putting a plan in place — even a modest one — puts you back in control of a conversation that can otherwise feel like it’s happening to you rather than with you.
A reasonable next step
If you haven’t reviewed your estate’s Inheritance Tax exposure in the last two to three years, or you’ve never assessed it at all, it’s worth doing a rough calculation: the approximate value of your property, pensions, savings, and investments, less any outstanding debts, measured against the current thresholds. If that figure is closer to the £325,000 (or combined couple’s) threshold than you expected, a conversation with a financial adviser can help you understand the options available and whether any action is appropriate for your circumstances.
This article is for general information only and does not constitute financial, tax, or legal advice. It reflects our understanding of current and proposed UK tax rules, which are subject to change, and individual circumstances will affect how they apply to you. Figures and forecasts referenced (including HMRC and OBR data) are sourced from publicly available government publications and are subject to revision. You should seek personalised advice from a qualified financial adviser before making any decisions.
