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Estate PlanningJune 23, 2026

Estate Planning In The UK: Five Mistakes To Avoid

Hoxton BlogEstate Planning In The UK: Five Mistakes To Avoid

  • Estate Planning
  • Life Insurance
  • Inheritance Tax

Inheritance tax was once a concern for the very wealthy. Rising property values, frozen thresholds and significant rule changes on the horizon mean that is no longer the case. We've put together this guide to the five most common estate planning mistakes and how to avoid them. By addressing each of these pitfalls early, families can protect more of their wealth, reduce unnecessary tax bills and maximise the value of the estate they pass on.

Inheritance Tax Net Widens

Inheritance tax (IHT) was once seen as a concern only for the very wealthy. That perception is rapidly changing. A combination of rising property values, frozen tax-free thresholds, and significant upcoming rule changes means that more and more ordinary UK households are now being drawn into the IHT net - often without realising it.

Under current rules, IHT is charged at 40% on estates above the £325,000 nil-rate band, with an additional £175,000 residence nil-rate band available when passing a family home to direct descendants. Yet property price growth alone has been enough to push many families over these thresholds in recent years.

The stakes are set to rise further from April 2027, when the government’s proposed reforms will bring unused defined contribution pension funds into estates for IHT purposes for the first time. Previously, pensions were widely regarded as one of the most tax-efficient ways to pass on wealth. That is about to change - and for many families, the impact will be significant.

The good news is that, with the right planning, there is much that can be done. But good intentions alone are not enough. Many people make avoidable mistakes that leave their loved ones facing unnecessary tax bills. Here are five of the most common - and how to avoid them.

Take Action Now To Protect Your Estate

The IHT landscape is changing, and the window for effective planning is narrowing. From April 2027, pension funds that were once largely outside the IHT net will be drawn in, exposing many more families to significant potential liabilities. Acting now - before those changes take effect - provides the greatest range of options.

None of the mistakes above are inevitable. With clear records, joined-up planning between partners, disciplined use of gifting allowances, properly structured gifts, and well-considered trust arrangements, it is possible to significantly reduce the IHT burden on your estate and ensure your wealth reaches the people you intend it to.

There is no single solution that suits everyone. The right approach depends on the size and nature of your estate, your income needs in retirement, your family circumstances, and your long-term goals. What is consistent across every situation, however, is that early, professional advice makes a substantial difference.

If you would like to understand how the forthcoming changes may affect your position, or if you would like to review your current estate planning arrangements, we would be delighted to help. Please do not hesitate to get in touch.

About Author

Louise Sayers

June 23, 2026

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