Thirsk v Thirsk: inherited wealth, a widow’s claim and the family farm

A Yorkshire farmer made a new Will a few weeks before he died unexpectedly. It left his second wife a £5 million tax-free legacy, the right to live in their home for life, and the contents. Everything else — a farming estate worth tens of millions — went to his son. His widow went to court saying it was not enough. The High Court’s answer, handed down in May 2026, is one every business owner and property investor in a second relationship should understand.

The case is Thirsk v Thirsk & Ors [2026] EWHC 1501 (Ch), decided by Mr Justice Cusworth. It tells us how the court looks at a family estate built on inherited land and business assets when a spouse says the Will has left them short.

What happened

Mr Thirsk was born in 1947. In 1984 he inherited farmland around Pocklington from his father, together with the family farming business. Over the following years he bought several hundred more acres. He had one son from an earlier relationship, who joined the farm business as a teenager and worked in it for many years.

In 2002 Mr Thirsk began a relationship with Sarah, and they lived together from around 2003. They married in March 2021. He died in April 2022, barely a year after the wedding. Both sides accepted that the 19 years they had lived together should count as part of the marriage.

His estate was worth around £30 million. His Will, signed only weeks before his death, gave his widow:

• a tax-free legacy of £5 million;
• a life interest in the matrimonial home — the right to live there, but not to own it; and
• certain chattels.

The residue, including the bulk of the farming business, passed to his son.

Sarah brought a claim under the Inheritance (Provision for Family and Dependants) Act 1975, arguing that the Will did not make reasonable financial provision for her. She described the Will as a “stop-gap” pending a post-nuptial agreement, and said the couple had spent more than £700,000 a year.

What the 1975 Act actually says

In England and Wales you are free to leave your estate as you wish. But the 1975 Act lets certain people — including a spouse, a cohabitant of two years or more, and children of any age — ask the court to step in if the Will (or the intestacy rules) does not make reasonable financial provision for them.

Spouses are in a stronger position than anyone else. For most claimants, “reasonable provision” means only what they need for their maintenance. For a surviving spouse, it means what is reasonable in all the circumstances, whether or not it is needed for maintenance. The court also runs a “divorce cross-check”: it asks what the spouse might have received had the marriage ended in divorce rather than death. That is a guide, not a ceiling or a floor.

What the court decided — and why

The judge rejected most of the widow’s case, but not all of it.

The spending figures did not stand up

The court found the claimed lifestyle figures were inflated and poorly evidenced. The judge said she gave the impression of wanting to maximise the budget the court might allow, without much thought as to how. A claim built on numbers that cannot be supported does not get far.

Inherited wealth stayed inherited wealth

This is the heart of the judgment. Around £20 million of the assets had been acquired during the relationship. On the face of it, that looks like wealth built up together. But every one of those acquisitions had been funded, originally, from land Mr Thirsk inherited or owned before the relationship began.

Applying the Supreme Court’s 2025 decision in Standish v Standish, the judge looked at whether that pre-relationship wealth had become “matrimonial” property over time. He held that it had not. The source of the money mattered, and so did the evidence of what Mr Thirsk intended: he had repeatedly said the farm was meant to pass to his son, and he had worried that land might have to be sold to fund provision for his wife. Intention is relevant but not decisive — the court weighs the source of the asset, how it was used and for how long, alongside what the owner meant to happen.

So when the court ran the divorce cross-check, it worked mainly from the assets that were genuinely matrimonial, not from the whole £30 million.

But a life interest in the home was not enough

The judge concluded that the widow’s claim went beyond both what she might have received on divorce and what she reasonably needed. Even so, he held that leaving her only a life interest in the home was not reasonable provision. The order he made followed the son’s own open offer: the home and the land around it were transferred to her outright, alongside her £5 million legacy, the chattels and interest on the unpaid part of the legacy.

The judge also observed that, as divorce settlements move towards time-limited provision, a surviving spouse may sometimes be better placed than a divorcing one to seek provision for life.

What it looks like closer to home

Take a Sussex couple — call them Richard and Helen, an illustration only. Richard, 66, inherited a small portfolio of rental flats from his parents in the 1990s. Over the past twenty years he has sold some of them and bought others, and the portfolio is now much larger. He met Helen in 2008 and they married last year. He has two adult children from his first marriage, who help run the lettings.

Richard’s instinct is to leave Helen the right to stay in their home for life and a cash sum, with the portfolio going to his children. Thirsk suggests three things he should have in mind.

• The fact that the portfolio grew during the relationship does not automatically make it shared wealth. If it can be traced back to what he inherited, a court may treat it as his to leave.
• That tracing has to be shown, not just asserted. Clear records of where the money came from, and a consistent account of what he intends, carry real weight.
• Even if the portfolio is protected, a bare right to occupy the home may not be enough for a long-standing spouse. Leaving Helen the home outright, or a clear route to an equivalent home, may be what keeps the Will out of court.

The traps

The “stop-gap” Will

Mr Thirsk’s Will was signed weeks before he died, apparently as an interim measure while a post-nuptial agreement was discussed. He had even told his advisers he might want to reduce the legacy. None of that happened in time. Whatever you sign is the Will that counts. If something is meant to be temporary, it still has to be a Will you would be content to see stand.

Assuming a long relationship and a short marriage are different things

Here, 19 years of living together were treated as part of a one-year marriage. If you have lived with your partner for many years before marrying, the court is likely to look at the whole relationship.

Mixing inherited and shared wealth without a paper trail

The son’s position was strong because the money could be traced back to inherited land. Where family wealth and joint wealth have been blended over decades and nobody kept track, that argument is much harder to make.

Leaving the home on a life interest and nothing more

A life interest can be the right answer in many families — it is a well-established and sensible way to look after a spouse while protecting children. The point from Thirsk is narrower: where the estate is large, the relationship is long and the spouse has little else, the court may expect more. Whether that applies to you depends on your own circumstances, which is why the advice matters more than the template.

Forgetting that litigation drains the estate

Four years after the death, part of the legacy was still unpaid and interest was running. Disputes like this take years, and the legal fees come out of the family’s wealth.

What to do

• Make the Will you mean now. If you are in a second marriage or a long relationship, and there are children from an earlier one, do not rely on an interim Will or a plan to “sort it out later”.
• Know which assets came from where. For a family business, farm or property portfolio, keep a clear record of what you inherited or owned before the relationship, and how later purchases were funded.
• Think about the home separately. Decide deliberately whether your spouse or partner should own it, live in it, or have the means to buy somewhere else — and test that against what a court might regard as reasonable.
• Be consistent about your intentions. In Thirsk, what the deceased had said over the years about the farm going to his son was part of the evidence. Clear, consistent instructions to your advisers help.
• Consider the tax picture alongside the family one. Gifts to a spouse are generally free of Inheritance Tax, while farm and business assets now face the £2.5 million combined cap on full Business Relief and Agricultural Property Relief, with 50% relief above it, from April 2026. The split between spouse and children affects both fairness and tax.

The short version

Thirsk is reassuring for families who want inherited land or a family business to pass down the line: the court respected the source of the wealth and the owner’s clearly expressed wishes. But it is also a reminder that a long-standing spouse cannot simply be left with the right to live in the house. Getting that balance right, in writing, while you can, is what keeps a family out of the High Court.

If you are a business owner or property investor in a second marriage or long relationship and want to make sure your Will strikes the right balance, book a Discovery Call with John. It takes 30 minutes, the fee is £30, and it is credited against your fees if you go on to instruct us.