Inheritance Tax and Property: Planning Considerations
Written by Scott Jones, founder of PropertyKiln · Last updated
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If you die still holding a BTL portfolio, HMRC values it at full market value minus mortgages, gives you at most GBP 500k-1m of relief depending on your home and spouse, and charges 40% on the rest.
"This guide provides general information about UK landlord tax obligations. It is not financial or legal advice. Tax treatment depends on your individual circumstances and may change. Consider consulting a qualified accountant or solicitor for advice specific to your situation."
1. How property is taxed for IHT right now
Valuation and rates
- Each property is valued at open market value at date of death, less any outstanding mortgage secured on it.
- Your estate pays IHT at 40% on the slice above available nil-rate bands (or 36% if at least 10% is left to charity).
Nil-rate bands (frozen)
- Nil-rate band (NRB): GBP 325,000 per person, available against all assets.
- Residence NRB (RNRB): GBP 175,000 per person, only if you leave a qualifying main residence to direct descendants, and your estate is under the GBP 2m taper threshold.
- Both bands are frozen at those levels until at least April 2028 and, in practice, are now expected to stay frozen until around 2030-31.
Important for you:
Standard BTLs and holiday lets do not qualify for the RNRB. Only a property that has been your home and is left to children/grandchildren etc. can use that extra GBP 175k.
Example couple with home plus rentals:
- Home worth 500k left to kids, plus BTL portfolio net 900k.
- Combined NRB + RNRB if both spouses' bands are available can be up to GBP 1m (2 x (325k + 175k)).
- Anything above that (here 400k) is at 40% = GBP 160k IHT.
2. Why BPR/APR and companies do not "fix" landlord IHT
Business Property Relief (BPR)
- BPR can wipe 50-100% of IHT on genuine trading businesses, but IHTA 1984 s105(3) excludes businesses that wholly or mainly consist of dealing in land or buildings or making/holding investments.
- HMRC manuals and case law are clear: a standard BTL or commercial letting business is an investment business, so no BPR.
Agricultural Property Relief (APR)
- APR is for qualifying agricultural land and buildings used for farming, not for normal rental portfolios.
Using a limited company
- Putting your rentals in a company does not remove IHT.
- Your shares in the property company are valued at market value at death and sit in your estate.
- Because the company's activity is still property investment, BPR normally still does not apply.
Trusts
Discretionary trusts can move future growth out of your estate, but:
- Gifts into trust above the NRB can trigger an immediate 20% lifetime IHT.
- Trusts face 10-year (periodic) charges of up to 6% and exit charges.
- They are not magic: you still attack IHT mainly by getting value out of your estate early and living 7 years.
Lifetime gifts and CGT
- Gifting property is a disposal at market value for CGT under TCGA 1992 s17/s18, so you can trigger an immediate CGT bill even though you receive no cash.
- The GBP 3,000 annual gift exemption is trivial relative to property values; it barely moves the needle for landlords.
Pensions
- Pensions are mostly outside IHT today.
- From 6 April 2027, unused defined-contribution pension pots and death benefits are due to be brought into the IHT net as part of the estate, under reforms confirmed after Autumn Budget 2024.
- This removes one of the last big "IHT-free" wrappers and makes it even more important to plan across property and pensions together.
CGT interaction
- There is no CGT on death. Under TCGA 1992 s62, assets in the estate are rebased to probate value for the heirs.
- So hold until death and your heirs get a fresh CGT base cost, but you face IHT. Gift during life and you can face both CGT now and IHT later if you do not survive 7 years.
3. Realistic IHT planning options for portfolio landlords
There are no silver bullets. There are a handful of boring but workmanlike levers:
Use both spouses' nil-rate bands and RNRBs properly
- Make sure both you and your spouse own something and wills pass everything between spouses, so your combined NRB and RNRB (up to GBP 1m if you have a qualifying home) are fully available.
- Watch the GBP 2m taper on RNRB: large portfolios can lose RNRB altogether once the estate passes GBP 2m, because RNRB tapers away at GBP 1 for every GBP 2 above.
Gradual lifetime gifting while rates are lower
- Gifting property or shares to adult children or into trusts, accepting CGT now but shrinking the estate for IHT if you survive 7 years (Potentially Exempt Transfers, PETs).
- Techniques to soften CGT hit:
- Gift shares in a company which holds the properties, not properties one by one.
- Sell some stock while CGT rates are 18/24% and reinvest in more IHT-efficient assets.
Use excess income to reduce property debt or invest outside your estate
- If you are not spending all rental profit, consider:
- Paying down mortgages to improve net cashflow and make future sales easier.
- Using surplus to fund regular lifetime gifts into ISAs or other structures held in younger family members' names (accepting 7-year clock).
- Over time this can move hundreds of thousands out of your estate without large single transfers.
Consider family investment companies and structured ownership
- Family investment company (FIC) with different share classes can let you:
- Freeze your own value (pref shares).
- Give growth shares to children so future growth accrues outside your estate.
- You still have CGT/SDLT to get property into the structure, but next-generation growth happens in their hands, not yours.
Integrate pension and property planning before 2027
- Up to 2027, pensions are still the best place to park long-term money outside IHT.
- With pensions coming into IHT, you need to think in terms of "spend versus leave":
- Possibly spend more pension in retirement and leave more property or vice versa depending on final rules.
Insurance as a balancing tool
- Some landlords simply buy whole-of-life insurance held in trust to cover the projected IHT bill, funded from rental income.
- It does not reduce IHT, but it means heirs do not need to fire-sale properties to pay HMRC.
All of this needs a proper model of your actual numbers: estate size, leverage, age, health, and whether the kids even want to inherit a portfolio.
4. Common myths and forum nonsense
The big myths you see:
"Just set up a company and BPR will wipe the IHT." Wrong: a company that mainly holds let property is an investment business. IHTA 1984 s105(3) explicitly excludes dealing in land/buildings and making/holding investments from BPR.
"My portfolio is a business so it gets 100% relief." HMRC and the courts have repeatedly held that normal letting -- even holiday lets and HMOs -- is not trading for BPR unless there is exceptional extra service; even then, cases are finely balanced. You should assume no BPR unless a specialist tells you otherwise with case law in hand.
"Gifting property avoids both CGT and IHT if I live seven years." Wrong: gifting is a CGT disposal at market value now, and only if you live 7 years do you escape IHT on that gift. You pay CGT first; surviving 7 years only solves the IHT half.
"Pensions are always outside IHT so I will just stuff everything into SIPPs." From 6 April 2027, unused defined-contribution pensions and death benefits are scheduled to be counted in the estate for IHT, closing that door.
"My kids can just inherit the mortgages and there will be little IHT." HMRC look at net value (value minus debt), but if the portfolio is worth GBP 3m with GBP 1m mortgages, they are taxing roughly GBP 2m less nil-rate bands at 40%. They do not care about your "cashflow" story.
The realistic approach is: accept that IHT will bite on a successful portfolio, stop chasing magic reliefs that do not apply, and design a plan that trades some CGT and some complexity today for a smaller, more liquid taxable estate later.
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