Inheritance Tax Calculator for Landlords & Property Estates (2026/27)
Home plus buy-to-lets: the nil-rate bands, residence band, spouse transfer, 7-year gifts with taper and the 36% charity rate — on your numbers, sourced to gov.uk.
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Landlords are the classic Inheritance Tax case: a home, one or more rentals, and no relief on any of it. Business property relief does not apply to ordinary lettings (HMRC’s manual is explicit), so every buy-to-let sits in the estate at full value and is taxed at 40% above the allowances. This calculator applies the current thresholds — the £325,000 nil-rate band, the £175,000 residence nil-rate band when the home passes to direct descendants (tapered above £2m), the transfer of a late spouse’s unused bands, the 7-year gift rule with taper relief, and the 36% charity rate — on your own numbers.
What the estimate assumes
- Gifts in the last 7 years use the nil-rate band first (that is how HMRC applies it), and any excess is taxed with taper relief on the tax: 40% within 3 years, then 32% / 24% / 16% / 8% for years 3–7. The calculator takes one “largest gift” date for simplicity.
- “Full transfer from late spouse” assumes they left everything to you (100% of both bands available). Partial use reduces it.
- The residence nil-rate band is capped at the value of the home passing to children or grandchildren and reduces by £1 for every £2 the net estate exceeds £2m.
- Pensions are excluded until 6 April 2027, when unused pension funds join the estate under the announced change.
Why rentals hurt more than a business would
A trading business can pass on with up to 100% business property relief (capped at £2.5m of combined agricultural and business property from April 2026). Letting property is investment, not trading, so no relief — the whole portfolio is exposed. That is the reason so many landlords look at gifting a property early (a potentially exempt transfer that also triggers Capital Gains Tax now — see the CGT calculator), holding through a company, or life insurance in trust to fund the bill.
Gifting a rental to your children: the two taxes
Giving away a buy-to-let is a disposal at market value for CGT, payable within 60 days (deadline calculator), and only leaves the IHT estate if you survive 7 years and keep no benefit from it (living there or taking the rent after the gift is a “gift with reservation”, which fails). The rent then belongs — and is taxed — to the child.
Practical moves the calculator will show
- Leave the home to descendants to unlock the residence nil-rate band — up to £350,000 for a couple.
- Use both spouses’ bands: everything to the survivor first, then to children, doubles the allowances.
- Charity 10% drops the rate on the whole estate to 36% — sometimes at almost no cost to the family.
- Annual £3,000 gifts and £250 small gifts leave the estate immediately.
Thresholds, rates and the taper table from gov.uk (Inheritance Tax; IHT — gifts; RNRB guidance; HMRC manual IHTM25278; April-2026/27 changes policy pages), quoted in research/2026-09-04/LTL-FACTS-PACK-2.md and re-fetched 4 September 2026. General information, not advice — estates with trusts, businesses or overseas assets need a specialist.
Asked constantly
Yes. Rental property sits in your estate at full market value and gets no business property relief. Above the nil-rate bands it is taxed at 40% (36% if 10% of the net estate goes to charity).
You can gift it — it becomes a potentially exempt transfer that leaves your estate if you survive 7 years and take no benefit from it. But the gift is a disposal for Capital Gains Tax at market value, payable within 60 days, and the rent is then theirs.
No. It applies only to a home you lived in that passes to direct descendants, and it tapers away for estates over £2 million. Rentals are covered only by the ordinary £325,000 band.
From 6 April 2027 unused pension funds and death benefits are brought into the estate for IHT under the announced change. Until then the calculator leaves pensions out; after that date add them to 'other assets'.
Doing this every quarter, not just once?
Keep the same figures all year instead of re-typing them: rent and expenses per property, the Section 24 finance costs and the MTD quarterly totals, in one workbook.
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Disclosure: we make and sell the Tax Pack — this is our own product, not a paid recommendation. It does not file anything with HMRC and it is not tax advice; filing goes through you, your accountant or software on HMRC’s compatible-software list.
Sources
The primary documents this page is built from. Links checked 5 September 2026.
- Inheritance Tax — GOV.UK
- Inheritance Tax: passing on a home — GOV.UK
- Inheritance Tax: gifts — GOV.UK