Most property investors who arrive at this conversation have already done the sensible thing. They have SPVs. Possibly a holding company above them. They have separated their properties into limited companies to reduce income tax on rental profits. They have done what their accountant recommended. And they are right that it worked — for income tax.
What nobody has shown them is that the SPV structure does not touch the inheritance tax problem. Not even slightly.
What the SPV actually does
A Special Purpose Vehicle (SPV) is a limited company that holds a single property or a small group of properties. The rental income is taxed at corporation tax rates (currently 25%) rather than personal income tax rates (up to 45%). For a higher-rate taxpayer with significant rental income, this difference is substantial.
The SPV also provides legal separation between properties. A claim against one SPV does not automatically reach the assets in another. For a portfolio investor with multiple properties, this separation has genuine value.
So the SPV is doing its job. The income tax is lower. The assets are separated. The accountant is correct.
What the SPV does not do
An investment company — regardless of how it is structured — does not qualify for Business Property Relief. BPR exempts qualifying business assets from inheritance tax. A trading company qualifies. An investment company holding rental properties does not.
This means the full value of every SPV in your portfolio sits inside your estate. On death, 40% of that value goes to HMRC. Not 40% of the profit. 40% of the value.
| Portfolio value | IHT at 40% | What passes to your family |
|---|---|---|
| £1,500,000 | £600,000 | £900,000 |
| £3,000,000 | £1,200,000 | £1,800,000 |
| £5,000,000 | £2,000,000 | £3,000,000 |
| £10,000,000 | £4,000,000 | £6,000,000 |
Assumes full estate value in investment property. Nil-rate band and residence nil-rate band may reduce liability depending on individual circumstances.
The SPV did not create this problem. But it did not solve it either. The income tax problem and the inheritance tax problem are two different problems. The SPV addresses one. The architecture addresses the other.
Why the holding company does not fix it either
A common next step for property investors is to introduce a holding company above the SPVs. The holding company owns the shares in each SPV. The investor owns the shares in the holding company.
This is a sensible structure for governance and capital movement. It is not a solution to the IHT problem. The holding company is an investment company. It holds shares in investment companies. The full value still sits inside the estate. The 40% exposure is unchanged.
A family investment company (FIC) is a variation on this theme. It introduces different share classes — typically voting shares held by the parents and non-voting shares held by the children. This allows economic participation to be distributed to the next generation while control is retained. It is a useful instrument. But it has two limitations that are rarely explained.
First, the FIC does not freeze the value. The existing value of the portfolio still sits inside the estate of the person who contributed it. The IHT exposure on the contributed assets is unchanged. The FIC only prevents future growth from accumulating inside the estate of the original owner — and only if the structure is designed correctly.
Second, the FIC has no strategy built into it. What happens if the portfolio grows beyond the BPR threshold? What happens if there is a divorce in the next generation? What happens if one of the children wants to exit? The FIC is an instrument. It is not an architecture.
What the estate freeze technique actually does
The estate freeze is a specific mechanism within a properly designed capital architecture. It works by separating the existing value of the portfolio from the future growth.
The existing value — the value of the portfolio at the moment the structure is put in place — remains in the estate. The future growth — every pound of appreciation, rental income reinvested, and new property acquired after the structure is in place — sits outside the estate from day one.
This is not a trust in the traditional sense. It is not a gift. It is not a transfer that triggers an immediate tax event. It is a structural redesign of how value accumulates and where it sits.
The qualifying period for IHT ring-fencing begins the day the structure is in place. Not the day you decide to act. Not the day you book a call. The day the structure is built and HMRC-cleared.
Every month of delay is a month of growth that accumulates inside your estate instead of outside it. The architecture does not recover that growth. It only protects what comes after.
The numbers on a growing portfolio
Consider a property investor with a portfolio currently worth £3m, growing at 5% per year. They are 52 years old.
Without the architecture, in 20 years the portfolio is worth approximately £7.96m. The IHT liability on death is approximately £3.18m (assuming nil-rate bands of £650,000 for a couple).
With the architecture in place today, the existing £3m value remains in the estate. The future growth — approximately £4.96m — sits outside it. The IHT liability on death is approximately £940,000 (on the frozen £3m value less nil-rate bands).
The difference is approximately £2.24m. That is the cost of waiting.
What the audit shows you
The structure audit maps your current property portfolio across three dimensions: your current income tax position (what the SPVs are doing), your current IHT exposure (what the SPVs are not doing), and the architecture that addresses the gap.
It calculates your specific numbers. Not a general estimate. Your portfolio value, your growth rate, your timeline, your family situation. The output is a precise picture of what your current structure is costing you and what the architecture changes.
It takes two minutes. It requires no commitment. If the numbers suggest a conversation is worth having, we will say so. If they do not, we will say that too.
The SPV sorted the income tax. The architecture sorts the rest.