Agricultural Property Relief & Inheritance Tax Calculator for Farmers

There is no single number, because it depends on what the farm is made of and who inherits it. From 6 April 2026 one person has a £2,500,000 allowance for 100% Agricultural Property Relief and Business Property Relief combined, and that sits on top of the £325,000 nil-rate band and, where a farmhouse passes to children or grandchildren, up to £175,000 of residence nil-rate band. A married couple who each use their allowances can pass on £5,000,000 of qualifying agricultural and business property at 100% relief, plus £650,000 of nil-rate band. Above the allowance, relief drops to 50.0% rather than disappearing, so the excess is taxed at an effective rate of up to 20.0% rather than the full 40.0%. Not everything on a farm qualifies: let cottages, development value above agricultural value, and cash held outside the business generally do not.

It is £2,500,000, and the £1,000,000 figure that still circulates widely is out of date. The Autumn Budget 2024 announced the allowance at £1,000,000, which is where the original farming protests came from. On 23 December 2025 the Government announced it would instead be £2,500,000, and that is what was enacted in Finance Act 2026. HMRC's guidance now states that from 6 April 2026 the combined amount of 100% Agricultural Relief and Business Relief allowed against a person's estate cannot exceed £2,500,000. Some older policy papers on GOV.UK still show £1,000,000 and have not been withdrawn, so check the publication date of anything you read. If you had planning done between late 2024 and the end of 2025, it was almost certainly built on the £1,000,000 figure and is worth revisiting.

It does not lose relief altogether. Qualifying agricultural and business value above the allowance attracts 50.0% relief, so only half of it is brought into charge, and that half is taxed at the standard 40.0% rate. The arithmetic gives an effective rate of up to 20.0% on the excess. On a farm with £5,000,000 of qualifying property and a single £2,500,000 allowance, the first £2,500,000 is fully relieved, the remaining £2,500,000 gets 50.0% relief leaving £1,250,000 chargeable, and after the £325,000 nil-rate band the tax is £370,000. That is 14.8% of the value above the allowance.

Yes. Each person has their own £2,500,000 allowance, and from 6 April 2026 any unused part of it can be transferred to a surviving spouse or civil partner. That means a couple can shelter up to £5,000,000 of qualifying agricultural and business property at 100% relief, on top of two nil-rate bands. HMRC requires a claim for the transferred allowance within four years of the survivor's death, or within six months of the personal representatives starting to act. This matters most where the farm is held in one name only: if the whole farm belongs to one spouse, the other spouse's allowance may go unused unless ownership or the will is structured to make use of it. That is a conversation to have with a solicitor who does agricultural work, not something to fix from a calculator.

Only if it passes the character appropriate test. HMRC's guidance is that farm buildings, farmhouses and cottages "must be of a nature and size appropriate to the farming activity that is taking place". A modest house at the centre of a working holding usually qualifies; a large country house with a few acres attached usually does not, and a farmhouse that has effectively become a retirement home after the land was let out is often challenged. Even where the farmhouse qualifies, relief is given on its agricultural value, not its open market value — so the premium a buyer would pay for the views or the postcode is not relieved. This calculator lets you say whether the farmhouse qualifies, and treats the amount you enter as its agricultural value. Get a valuer to split the two figures before you rely on any estimate.

Because the taper is measured before agricultural and business relief. The residence nil-rate band of up to £175,000 falls by £1 for every £2 by which the net estate exceeds £2,000,000, and HMRC's manual is explicit that the taper "applies to the value of the estate after liabilities, but before taking into account any exemptions or reliefs", taking "no account of any exemptions, or reliefs such as agricultural relief or business relief". A farm valued at £3,000,000 is over the threshold by £1,000,000, which wipes out £500,000 of residence nil-rate band — far more than the £175,000 available. So the band is gone even though the relief may have removed the tax entirely. In practice the residence nil-rate band is worth nothing to most farms of any size, and it is a common mistake to include it in a rough estimate.

Yes, and from 6 April 2026 those instalments are interest-free. Tax attributable to qualifying agricultural and business property can be paid in 10 equal annual instalments, and the Government confirmed that the interest-free instalment option is being extended to all property eligible for agricultural or business property relief. The first instalment is due six months after the end of the month of death, and the rest follow annually. The catch is that the instalment option ends if the land or building is sold — the outstanding balance becomes payable immediately. Instalments spread the cash-flow problem rather than removing it, so the annual figure is worth comparing against the farm's actual profit before assuming it is affordable.

An outright gift to an individual falls out of the estate if the person making it survives 7 years, and taper relief reduces the tax on the gift where death occurs between three and 7 years. But there are three things to weigh. First, taper relief reduces the tax, not the value of the gift, and it only bites once the gift has used up the nil-rate band. Second, the relief allowance itself is reduced by qualifying transfers made in the 7 years before a chargeable transfer, so lifetime gifts of farmland use up the same £2,500,000. Third, if you keep living in the farmhouse or taking the farm income after giving it away, the gift with reservation of benefit rules will usually pull it back into the estate anyway. Gifting also has capital gains tax consequences. These are trade-offs to model properly with an adviser, not rules of thumb.

The ownership and occupation conditions have not changed. Agricultural property must have been owned and occupied for agricultural purposes for at least 2 years where it is occupied by the owner, a company they control, or their spouse or civil partner. Where it is occupied by someone else — a tenant, for example — the period is 7 years of ownership. Buying land shortly before death does not produce relief, and neither does taking land back in hand at the last minute. Relief is also given on agricultural value only, so hope value or development value attaching to land on the edge of a village is outside agricultural property relief, though it may qualify for business property relief if it is genuinely used in a trading business.

It is fixed at £2,500,000 until 6 April 2031, from which point it is index-linked to the Consumer Prices Index. The nil-rate band of £325,000 and residence nil-rate band of £175,000 are frozen at their current levels until 5 April 2031, and the £2,000,000 taper threshold is frozen alongside them. Freezing thresholds while land values rise means more estates are drawn in over time even with no change in the rules. Rates and allowances can be changed at any Budget, and this particular relief has already moved once between announcement and enactment, so treat any long-range plan as provisional and review it after each Budget.

It can. Where 10% or more of the net estate is left to charity, the rate of Inheritance Tax on the rest of the estate falls from 40.0% to 36.0%. The 10% test is applied to the estate after deducting liabilities, exemptions, reliefs and the nil-rate band, so on a farm where agricultural relief has removed most of the value the qualifying charitable gift needed can be smaller than people expect. This calculator does not model the reduced rate, and the interaction between charitable legacies, agricultural relief and the nil-rate band is genuinely fiddly, so it is worth having the sums checked before a will is drafted around it.

No. It sets out the figures that follow from the numbers you enter and the published rates, so you can see the shape of the problem before you pay anyone. It does not test whether your land, buildings or shares actually qualify for relief, which is where most of the real money is decided. It does not model trusts, partnership or company structures, contract farming agreements, lifetime gifts already made, the reduced charity rate, or the ordering rules for debts secured on particular assets. Valuations of agricultural land, and the split between agricultural value and market value, are matters of professional judgement and are frequently negotiated with HMRC. Take these figures to a solicitor or accountant who does agricultural work and let them check them against your actual title, accounts and will.