A National Residential Landlords Association survey found that a third of landlords hadn’t considered how Inheritance Tax might affect their portfolio – rising to 43% in London, where property values are highest and the eventual bill is likely to be largest. Only one in five landlords surveyed had sought any advice on managing it. Given the average UK home is now worth over £296,000, a portfolio of even a handful of properties can push an estate well past the nil-rate band and residence nil-rate band combined, without the owner necessarily realising it.
The relief that doesn’t apply here
It’s a common assumption that a property business ought to qualify for Business Property Relief, the same way a trading company can. It generally doesn’t. HMRC treats a standard buy-to-let portfolio as an investment business rather than a trading one for Inheritance Tax purposes – holding property to collect rent is fundamentally different, in HMRC’s eyes, from actively trading goods or services – and investment businesses are specifically excluded from the relief. This isn’t a recent change or a loophole that’s been closed; it’s long-standing practice, and it means the number of properties you own or how actively you manage them doesn’t change the answer. Furnished holiday lets used to sit in a slightly greyer area, closer to trading in some respects, but that regime was abolished from April 2025, removing what limited argument existed there too.
Why incorporating isn’t a quick fix
Moving an existing portfolio into a limited company is sometimes suggested as a way around this, but it isn’t the simple switch it can sound like. HMRC generally treats the transfer as a disposal, meaning Capital Gains Tax becomes due on the difference between what you paid for each property and its current value, and Stamp Duty Land Tax is typically payable on the transfer as well – both due immediately, regardless of the fact no cash has actually changed hands. For a portfolio built up over many years, that combined bill can be substantial, and it needs weighing very carefully against whatever benefit incorporation might bring.
The trap in gifting rental property specifically
Gifting a rental property to reduce your estate runs into a similar issue. Unlike your main home passing to a spouse, gifting a rental property – to anyone, including your own children – is treated as a disposal for Capital Gains Tax purposes at its full market value, even though no money has actually been received. It’s entirely possible to trigger a real CGT bill today in exchange for a potential Inheritance Tax saving that only materialises if you survive seven years. That doesn’t rule gifting out, but it does mean the numbers need working through properly before assuming it’s a straightforward win.
What actually helps
Given how limited the property-specific reliefs are, the tools that generally work best for landlords are the same ones that work for any estate: using your annual gifting exemptions where they fit, planning gifts and their CGT consequences together rather than separately, and using life insurance written in trust to give your family the cash to cover an eventual Inheritance Tax bill without needing to sell a property in a hurry – we’ve covered that calculation in more detail in our piece on life insurance for Inheritance Tax, and the fuller strategy picture in our guide to reducing Inheritance Tax.
Let’s look at your portfolio properly
We work with landlords across Poole, Bournemouth and the wider Dorset area to work out what a property portfolio actually means for an estate, and what genuinely helps rather than what sounds like it should. If you’d like your own position reviewed, get in touch and we’re happy to have a no-obligation conversation.
Find out more about our Inheritance Tax planning services here
This article is for general information only and does not constitute financial or tax advice, which should be based on your individual circumstances. The information is aimed at retail clients only. All information is correct at the time of writing (September 2026) and is subject to change in the future.
Tax treatment depends on individual circumstances and may change in the future. The Financial Conduct Authority does not regulate Inheritance Tax planning, tax advice or the buying and selling of property.