Do I Pay Inheritance Tax on My Business?

It is one of the first questions a business owner asks about their estate, and the answer is more encouraging than for most other assets: much of the time, a trading business passes free of inheritance tax. That is because of Business Relief: a long-standing relief designed so that families are not forced to sell or break up a viable business just to pay a 40% tax bill. But the rules are changing meaningfully from April 2026, so it is worth understanding both the relief and its new limits.

Inheritance tax is charged at 40% on the value of an estate above the available nil-rate bands, the £325,000 nil-rate band plus up to £175,000 residence nil-rate band, both frozen to 2030. Business Relief works by reducing the taxable value of qualifying business assets before that 40% is applied. This is general information, not personal advice.

How Business Relief works

To qualify, three broad tests must be met. The business must be trading rather than mainly an investment or property-letting operation; you must generally have owned it for at least two years before death; and any excepted assets, surplus cash or investments held beyond the reasonable needs of the trade, can be carved out of the relief. This last point is why letting cash pile up inside a company can quietly erode the relief, a risk we flag in our answer on taking money out of your company.

The trading test is where many businesses come unstuck. HMRC looks at whether the business is wholly or mainly trading, broadly, more than half by various measures, so a company that has drifted into holding large investment portfolios, buy-to-let property or surplus cash can find its relief restricted or lost. A cash-rich company approaching an owner’s death is a classic problem: the very prudence that built up reserves can undermine the relief, which is why extracting or reinvesting surplus cash into the trade is often part of good planning. The two-year ownership clock has some helpful flexibilities, too, if you inherit business assets from a spouse you can usually count their ownership as your own, and replacement property rules can preserve relief when you sell one qualifying business and buy another. But start a business or buy shares afresh and die within two years, and no relief is due, a reason to consider life cover to bridge that early window.

The 2026 cap changes the picture

For decades, a qualifying trading business could pass entirely free of inheritance tax however large it was. From April 2026 that is no longer true above £1m, so a business worth several million pounds can now carry a real inheritance tax liability. That makes lifetime planning, gifting shares early to start the seven-year clock, using the relief across a couple, and reviewing wills so the £1m allowance is not wasted, far more valuable than it was. Our answer on passing your business to your children looks at the timing options.

Business Relief also applies to lifetime gifts, but with a catch. If you gift business shares and die within seven years, the relief only holds if the recipient still owns the (still-qualifying) business at your death. If they have sold it in the meantime, the relief can be clawed back and tax charged on the original gift. Passing a business down therefore needs the recipient to be a genuine steward, not a quick seller, which is why succession planning and inheritance tax planning have to be thought through together rather than in isolation.

Don’t waste the relief in your will

A common and costly mistake is leaving the whole business to a surviving spouse. Transfers between spouses are already exempt from inheritance tax, so leaving business assets to a spouse can waste the Business Relief that could instead pass value to children or a trust tax-efficiently. With the new £1m cap, making deliberate use of the relief on the first death, rather than deferring everything to the second, becomes especially important. This is intricate, so it should be co-ordinated with your broader inheritance tax planning and your will.

Because Business Relief interacts with wills, trusts, the nil-rate bands and the coming changes, this is an area where good advice pays for itself. You can arrange a free, no-obligation match with an independently vetted, FCA-regulated specialist through business exit and succession planning. Vetted Wealth is a matching service providing information, not personal advice, and the value of a business can fall as well as rise.

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