Hands off: the Budget rumours that cost one family twice as much as the Budget
Before the UK’s latest Budget, families were warned of big tax rises and urged to act fast. None of the rises came, and the families who did not touch their portfolios were proved right. For one family modelled by a financial planning firm, acting on the rumours would have cost more than twice as much over ten years as the Budget itself.
When tax rumours start, the hardest thing to do with a portfolio is nothing. It can also be the cheapest. In the weeks before the UK government’s Budget, families were told that capital gains tax would soar. They also heard that pension tax-free cash would be cut and that inheritance tax would be replaced by a levy on estates. Every story urged them to act before it was too late. None of it happened.
Rumours change behaviour. In 2024-25, while cuts to tax-free cash were widely rumoured, the number of people taking pension cash for the first time without advice rose by 17 per cent, according to the Financial Conduct Authority. Among those who took advice, the number fell.
What the rumour cost one family
Y TREE, a London-based financial planning firm, tested this on an illustrative couple, Pippa and Philip. They expect capital gains tax to rise, so they sell their investments and buy them straight back. That crystallises a £400,000 gain and a £95,000 tax bill at today’s rate.
The rate doesn’t rise. The £95,000 is gone and no longer growing. Over ten years, Y TREE’s projection puts the cost of that decision at up to £138,000. Over the same ten years, the Budget itself costs them about £62,000. Even if the rate had risen, paying early would only have paid off if they then sold within seven years. Leaving the portfolio alone would have spared them the whole cost.
It isn’t a one-off. Pension tax-free cash was rumoured to be cut before the 2024 and 2025 Budgets as well, and survived every time. Even a confirmed change can vanish. Last year’s cut to the cash ISA allowance was announced and given a start date, then scrapped before it took effect.
Budget rumours: the case for not acting
The lesson travels well beyond the UK. Speculation about tax costs nothing to print. Acting on it can cost a great deal. A rumour alone is no reason to make a costly decision. When the next round of Budget speculation starts, the best thing to do with your portfolio is usually not to touch it.
My full analysis for Y TREE covers what the Budget did change, what it means for one family’s balance sheet and the bigger question of who pays for care.
I wrote this analysis for Y TREE, which commissioned it and paid me for it.
Resources
Financial Conduct Authority. (2025, 16 September). Retirement income market data 2024/25. Financial Conduct Authority.
Powell, R. (2026). Autumn Budget 2026 explained: What it means for your family’s wealth. Y TREE.
Y TREE. (2026, 28 October). What the Budget means for Pippa and Philip [Unpublished modelling]. Y TREE.
