Inheritance Tax (IHT) has a reputation for being confusing, and for many people, faintly alarming. Part of the problem is language: terms like “nil-rate band” and “residence nil-rate band” sound like they were designed to keep people out rather than help them in. This article strips away the jargon and sets out, in plain terms, what IHT actually is, what it isn’t, and where the main allowances sit today.
The basic idea
When someone dies, everything they owned — property, savings, investments, personal possessions, and more — is added up to form their “estate.” If the value of that estate is above a certain threshold, tax may be due on the amount over that threshold before it passes to beneficiaries. That’s it, in essence: IHT is a tax on the value of an estate above a set line, not a tax on the act of inheriting itself.
A common misunderstanding is that IHT is something the people receiving an inheritance have to pay out of their own pocket. In most cases, that isn’t how it works. Any tax due is normally settled from the estate itself, before the remaining assets are distributed.
Where the thresholds sit
Two allowances matter most:
- The nil-rate band (NRB), currently £325,000, is the amount of an estate that can pass free of Inheritance Tax.
- The residence nil-rate band (RNRB) is an additional allowance available when a main home is left to direct descendants (children, grandchildren, and certain others), on top of the standard nil-rate band.
Both allowances can typically be transferred between spouses and civil partners, meaning a surviving partner can often benefit from both of their own allowance and their late partner’s unused allowance. Above these combined thresholds, the standard rate of IHT is currently 40%, applied only to the portion of the estate that exceeds the allowances.
It’s worth noting that the nil-rate band has been fixed at £325,000 since 2009 and is set to remain frozen for some years yet, even as property values and other asset prices have continued to rise. That combination — a static threshold and a growing asset base — is one of the main reasons more estates are being drawn into scope over time, a theme we explore further in the next article in this series.
What Inheritance Tax isn’t
A few clarifications are worth making explicit:
- It is not payable simply because you have received money or assets from someone’s estate — the liability, where one exists, sits with the estate, not the recipient.
- It is not unavoidable. A range of exemptions and reliefs exist, and with early planning, many families are able to reduce a future liability or remove it altogether.
- It is not only a concern for very large estates. Because property values have risen substantially over recent decades while the thresholds have not moved, a growing number of everyday family homes and modest investment portfolios now sit closer to, or above, the tax-free limit than their owners might expect.
Why this matters for planning
Understanding these basics is the first step, not the last. The right approach for any individual or family depends on personal circumstances: the make-up of the estate, family relationships, how much control you want to retain during your lifetime, and what you’re hoping to achieve for the people (or causes) you care about. There is no single “correct” answer that applies to everyone.
If you think your estate could be liable for Inheritance Tax now, or might be in the future, a good starting point is simply totting up an approximate value of what you own — property, pensions, savings, investments, and any business interests — against your outstanding debts. That rough figure is often enough to tell you whether a more detailed conversation with a professional adviser is worthwhile.
Important Information
This article is for general information only and does not constitute financial, tax, or legal advice. Inheritance Tax rules are subject to change, and how they apply depends on your individual circumstances. You should not rely on this content when making financial decisions. We recommend seeking advice from a qualified financial adviser and, where appropriate, a solicitor or tax professional, before taking any action.

