Kent is a county of two estate-planning stories at once. Across the county the average home was around £385,000 in the year to June 2026, with the median nearer £330,000 (HM Land Registry price-paid data compiled by Plumplot, to June 2026, subject to change). A home at that level sits above the £325,000 nil-rate band, but comfortably within the £500,000 a single owner can reach when a main residence passes to children or grandchildren, and well inside the £1,000,000 a married couple or civil partners may combine (gov.uk, as at July 2026, subject to change).
On the strength of the house alone, then, a great many Kent households are not close to an inheritance tax bill. The reason estate planning matters here is what tends to sit alongside the house. Kent is the Garden of England, and farming shapes the county. Kent falls within the South East region, which works around 1,119 thousand hectares of farmland at an average holding of 89 hectares, and where fruit is the single largest farm output at £352 million, supported by some 7.8 thousand hectares of orchards and 5.5 thousand hectares of soft fruit (DEFRA, Agricultural facts: South East (including London), published 30 October 2025, subject to change). Kent is the heart of that fruit-growing country, from the top-fruit orchards of the Medway valley to the vineyards of the Weald. Where a family owns land, a fruit farm, a vineyard, a livery, a haulage yard or another trading business, the estate is rarely just the value of the family home. It is the home, plus land, plus plant and buildings, plus a business that someone in the next generation may want to keep running.
That combination is where planning earns its keep in Kent, and it is where the rules moved most in the last year. So this page leads with farmland and business succession, which fits the county, rather than with the general will-and-power-of-attorney overview that suits everyone. Those foundations still matter, and they are covered lower down, but they are not what makes a Kent estate distinctive.
Farms, land and family businesses: the April 2026 change
For decades, agricultural property relief and business property relief let qualifying farmland and trading businesses pass down at up to 100% relief, so a working farm could move to the next generation with little or no inheritance tax. From 6 April 2026 that relief is capped. gov.uk's guidance states that "the combined amount of 100% Agricultural Relief and Business Relief allowed against a person's estate cannot exceed £2.5 million", and that "where the total value of qualifying property exceeds £2.5 million, the excess will receive 50% relief". The £2,500,000 allowance is per person, and any unused portion can be transferred to a surviving spouse or civil partner where a claim is made, so a married couple can, with planning, shelter up to £5,000,000 of qualifying property at 100% (gov.uk agricultural relief and gov.uk inheritance tax, as at July 2026, subject to change).
For most ordinary Kent working farms, the £2,500,000 allowance, doubled in effect for a married couple, will keep 100% relief on the land and buildings. The change bites at the larger and higher-value holdings the county is known for. In a place where the average detached home already runs to about £617,000 (Plumplot, HM Land Registry data to June 2026, subject to change) and orchard, soft-fruit and arable ground close to London and the motorway network carries a high value per acre, a substantial commercial farm, taken together with the farmhouse, machinery and a trading business, can carry a combined value above £2,500,000. Above the allowance, 50% relief leaves the balance charged at the 40% standard rate, an effective 20% on that slice (gov.uk, as at July 2026, subject to change). The exposure is sharpest for single owners, unmarried partners and estates that have not planned to use or transfer both allowances. For a family that farms rather than banks its wealth, even a 20% charge on the excess can be hard to meet without selling part of the very land the next generation needs to keep the farm viable.
This is the planning conversation that has changed most for Kent. Questions that were once straightforward now repay careful thought: whether each spouse's £2,500,000 allowance is used on the first death or wasted, and whether the unused portion will be claimed by the survivor's estate; how lifetime gifts of land interact with the seven-year rule; whether business structures still qualify for relief; and whether life cover written into trust could fund a future bill so the farm does not have to. Inheritance tax on qualifying land and buildings can often be paid in instalments over up to ten years, which helps, but it does not remove the liability (gov.uk, as at July 2026, subject to change). These are matters for advice on your specific holding, not a general rule, and the legislation is still settling, so any plan is best reviewed as the detail is confirmed. Our inheritance tax guide sets out the wider framework.
A Kent farm is often asset-rich and cash-poor. The planning question is not only how much tax, but where the money to pay it would come from without breaking up the land.
Higher-value estates in west Kent
The second Kent story is the affluent commuter belt in the west of the county. In Sevenoaks the provisional average house price was £554,000 in May 2026, up 3.9% over the year, and the average detached home reached £1,034,000 (ONS, UK House Price Index, May 2026, subject to change). Tonbridge, Tunbridge Wells and the villages around them tell a similar story. Here the family home on its own can approach or exceed the £500,000 single-owner figure, and a couple with a detached house plus pensions, investments and perhaps a second property can move past the £1,000,000 combined threshold without owning any farmland at all.
For these estates the residence nil-rate band and its taper matter. The residence allowance of up to £175,000 per person is reduced by £1 for every £2 by which an estate exceeds £2,000,000, and is lost entirely a little above that level (gov.uk, as at July 2026, subject to change). A west Kent family whose home, savings and a farm or business together push past £2,000,000 can lose the very residence allowance the home was meant to attract, which is one reason the two Kent stories often meet in the same estate. Planning here tends to look at gifting, the order in which allowances are used across a couple, trusts, and the mix of assets, with the thresholds frozen until the end of the 2030-31 tax year (5 April 2031) while values drift upward (gov.uk, as at July 2026, subject to change).