Most family wealth in the UK is held without a constitutional architecture above it. The trading company is there. Sometimes a holding company. Rarely a constitutional document. Almost never a governed framework for how the wealth passes from one generation to the next.
This is not a failure of planning. It is the default. Most families never install the architecture because nobody showed them it existed. The accountant files the returns. The solicitor drafts the will. The IFA manages the investments. Nobody designs the structure above the wealth.
What the default looks like
In the default position, family wealth is held personally by the founder. The trading company is owned personally. The property portfolio is owned personally. The cash savings are held personally. When the founder dies, everything passes through the estate.
The estate pays inheritance tax at 40% on the value above the nil-rate band (currently £325,000) and the residence nil-rate band (currently £175,000 per person). Business Property Relief reduces the IHT on qualifying trading assets to zero. But it does not apply to investment property, cash above trading needs, or assets that have already been sold.
A founder with a trading business worth £4 million (BPR-qualifying), a property portfolio worth £1.5 million (not BPR-qualifying), and cash savings of £500,000 has an IHT liability of approximately £800,000 on the non-BPR assets. That is £800,000 that the next generation must find — often by selling assets — before they can take control of what they have inherited.
The growth problem
The IHT calculation above is based on today's values. But the wealth is not static. A business growing at 10% annually doubles in value every seven years. A property portfolio in most UK cities has grown at 5–7% annually over the past two decades. Every year without a constitutional architecture above the wealth, more growth accumulates inside the estate rather than outside it.
The constitutional architecture ring-fences future growth from the estate from the moment it is installed. Growth above the existing asset value accumulates inside the structure rather than inside the estate. The IHT liability is fixed at the point of installation and does not grow with the wealth.
What the alternative looks like
The alternative is a three-layer architecture above the family wealth. A trading company or asset base at the foundation. A governed holding company or Family Investment Company above it. A constitutional document — the SAFO framework — governing how capital moves between entities, how it is protected from the estate, and how it passes to the next generation.
In this structure, the founder retains full control. The next generation participates economically through non-voting shares in the FIC. The seven-year IHT clocks start running on the gifts. Future growth accumulates inside the structure rather than inside the estate. The transition, when it happens, is governed rather than improvised.
The audit maps the current position of the family structure and identifies the gap between the default and the architecture. The gap is the number that changes when the structure is installed.