Berkshire has not had a single county council since 1998, and it does not have a single house price either. It is six unitary authorities, and the spread between them is wide enough to change the estate-planning conversation from one end of the county to the other.
The two Berkshires, and what each means for inheritance tax
In the west, around Newbury, Hungerford and Thatcham, the average home in West Berkshire was £399,752 in May 2025, up 4.6% over the year (HM Land Registry, UK House Price Index, West Berkshire, May 2025, subject to change). A home at that level sits above the £325,000 nil-rate band on its own, but comfortably within the £500,000 an individual can pass where a home goes to direct descendants, and well within the £1,000,000 a couple can combine by pooling both nil-rate and residence nil-rate bands (gov.uk, as at August 2026, subject to change). On the house alone, most West Berkshire households are not near an inheritance tax bill.
Move east and the arithmetic shifts. Wokingham, in the county's commuter belt, averaged £510,000 in May 2025 (HM Land Registry / ONS, UK House Price Index, Wokingham, May 2025, subject to change), and in Windsor and Maidenhead the average home was £583,785 in May 2025, up 4.4% over the year (HM Land Registry, UK House Price Index, Windsor and Maidenhead, May 2025, subject to change). A typical home in these towns already passes the £500,000 an individual can shelter with a home to children, so a single owner could leave a taxable estate on the property alone. A couple's combined £1,000,000 still covers it, but only a modest pension, some savings or a second property is needed to carry the estate past that ceiling, and the allowances are not moving: the £325,000 nil-rate band is frozen until 5 April 2031 and the £175,000 residence nil-rate band until 5 April 2031, while prices in the east keep rising (gov.uk, Inheritance Tax thresholds, as at August 2026, subject to change). The result is that two families in the same county, both feeling comfortably-off rather than wealthy, can face very different questions.
Farms, racing yards and studs: the April 2026 relief change
What sets Berkshire apart from a commuter county is what sits on the land in the west. The Lambourn valley is the second-largest centre of racehorse training in England after Newmarket, with more than 1,500 horses stabled in and around the village and its own equine hospital, gallops and specialist yards (Wikipedia, Lambourn, accessed August 2026). Zoom out and the concentration is striking: around 10% of Britain's racehorse trainers and roughly 3,700 racehorses sit within the North Wessex Downs National Landscape that covers much of west Berkshire (North Wessex Downs National Landscape, accessed August 2026). Alongside the training yards sit stud farms, liveries and the arable and grazing holdings of the North Wessex Downs. For these families the estate is rarely just the house. It is the house, plus land, plus stables, gallops and buildings, plus a working business that a son or daughter may want to keep running.
That is why a tax change taking effect from 6 April 2026 matters more in this county than a house price does. From that date, agricultural property relief and business property relief give 100% relief on the first £2.5 million of qualifying property per person, with relief on value above that allowance dropping to 50% (announced by government and updated at Budget 2025, subject to legislation, gov.uk, as at August 2026, subject to change). A downland farm, a Lambourn training yard or a stud worth several million pounds could, until now, have passed largely free of inheritance tax through these reliefs, and much of it still can. Under the reformed allowance, the value above £2.5 million per person would attract relief at 50%, leaving an effective 20% charge on that slice.
The practical worry is not the tax rate. It is that farms, yards and studs are asset-rich and cash-poor. A family can inherit hundreds of acres, a set of buildings and a going concern, and still have very little cash to hand to settle a bill measured in six figures. Without planning, the tax can force the sale of land, or of the business itself, to raise the money, which is the opposite of what most owners intend when they say they want to keep it in the family. Where a holding is genuinely trading, the reliefs still do a great deal of work; the change is in how much sits above the new £2.5 million line, and how a family funds whatever tax remains.
Handling that well is rarely a single document. It can mean reviewing how the land and business are owned between spouses so that two £2.5 million allowances are used rather than one, giving a couple up to £5 million of combined 100% relief that is now transferable on death, checking that a yard, stud or livery is structured to count as trading rather than investment for relief, and looking at whether life cover written in trust could meet a future bill without touching the land (gov.uk, as at August 2026, subject to change). Each step has its own tax and control effects, so these are matters most families work through with a qualified adviser rather than settle by a rule of thumb.
Higher-value estates and the £2,000,000 taper
In the east of the county, and for the larger rural estates, a second rule comes into play. The residence nil-rate band, the extra allowance for leaving a home to children, is reduced by £1 for every £2 by which an estate exceeds £2,000,000, and it can be lost altogether (gov.uk, as at August 2026, subject to change). Combine a high-value home in Ascot, Sunningdale or Cookham with a pension, investments and perhaps land or a business, and £2,000,000 is not a remote figure. An estate of around £2,350,000 loses the whole of one person's £175,000 residence band to the taper, so an allowance a family assumed it had may not be there when it is needed. For estates near that line, the order in which assets are held and gifted can change the bill, which is worth checking rather than assuming.