Significant changes to inheritance tax rules are taking effect from 6 April 2026, representing some of the most substantial reforms to estate planning in recent years. If you own a business, hold agricultural property, or have investments in AIM-listed shares, these changes will directly affect how you pass wealth to the next generation.
Understanding these reforms now gives you the opportunity to take appropriate action before the deadline. Let’s examine what’s changing, who will be affected, and what steps you might consider.
What’s Actually Changing?
For many years, Agricultural Property Relief (APR) and Business Property Relief (BPR) have provided complete inheritance tax relief on qualifying assets, allowing family farms and businesses to pass to the next generation without triggering a tax bill. This has been a cornerstone of succession planning for business owners and farmers across the UK.
From 6 April 2026, the government is introducing a cap on the amount that can benefit from 100% relief. Here’s how the new system will work:
- The first £2.5 million of qualifying business or agricultural assets will continue to receive 100% relief from inheritance tax
- Any value above £2.5 million will receive only 50% relief, resulting in an effective inheritance tax rate of 20% on the excess
- For married couples and civil partners, the allowance is transferable, creating a combined £5 million threshold
- AIM-listed shares, which previously qualified for 100% relief, will now only receive 50% relief regardless of value
The Broader Picture: Frozen Thresholds
These changes don’t exist in isolation. The government has confirmed that the main inheritance tax thresholds will remain frozen until April 2031:
- The Nil-Rate Band stays at £325,000
- The Residence Nil-Rate Band (for passing a main home to direct descendants) remains at £175,000
This freeze creates what’s known as “fiscal drag.” As property prices and asset values increase with inflation, more estates are being pulled into the inheritance tax net, even though the actual tax rates haven’t changed. For an average family, this means that what might have been comfortably below the threshold a few years ago could now trigger a substantial tax bill.
Understanding the Impact on Different Assets
Business Assets
If you own a trading business, whether as a sole trader, in partnership, or through shares in an unlisted company, the new £2.5 million cap will determine how much relief you receive. For businesses valued above this threshold, careful planning becomes essential to manage the potential 20% tax charge on the excess value.
Agricultural Property
Farmers and agricultural landowners face similar considerations. The value of farmland has increased significantly in recent years, and many working farms now exceed the £2.5 million threshold. The changes mean that succession planning for agricultural businesses requires more sophisticated strategies than simply relying on automatic relief.
AIM Shares
Investors who have used AIM-listed shares as part of their inheritance tax planning will need to reassess their strategy. Previously, these shares could qualify for 100% relief after being held for two years. From April 2026, all AIM holdings will only receive 50% relief, effectively meaning 20% of their value will be subject to inheritance tax on death.
What About Pensions?
While not changing in April 2026, it’s important to note that from April 2027, unused pension funds will be brought into the inheritance tax net. Historically, pensions have been an excellent vehicle for passing wealth to the next generation free of inheritance tax. This advantage will largely disappear from next year, making 2026 a crucial time to review your overall estate planning strategy.
Important Anti-Forestalling Provisions
The government has included anti-forestalling measures to prevent people from rushing to transfer assets before the changes take effect. If you make a lifetime transfer of qualifying property between 30 October 2024 and 5 April 2026, and you pass away within seven years of making that transfer, the new restricted relief rules will apply to that gift.
This means that simply giving assets away before April 2026 may not avoid the new rules if you don’t survive the seven-year period. This is an important consideration when evaluating your options.
Practical Steps to Consider
1. Obtain an Accurate Valuation
The first step is understanding where you stand. If you own business assets, agricultural property, or AIM shares, getting a professional valuation will help you determine whether you’re likely to be affected by the £2.5 million cap. Remember, for married couples, you have a combined allowance of £5 million.
2. Review Your Will and Ownership Structures
The way assets are owned and how your will is structured can significantly impact the inheritance tax position. For couples, ensuring that asset ownership is optimised to make full use of both allowances is crucial. Your will should reflect the new rules and may need updating if it was drafted with the old unlimited relief in mind.
3. Consider Lifetime Planning
While the anti-forestalling rules limit some options, there may still be legitimate planning opportunities, particularly for assets that don’t qualify for business or agricultural relief. Lifetime gifts, potentially exempt transfers, and the use of trusts all have roles to play in comprehensive estate planning.
4. Explore Insurance Solutions
Life insurance written in trust can provide funds to pay an inheritance tax bill without requiring the sale of business assets or property. With the new rules potentially creating tax liabilities where none existed before, insurance may become an increasingly important part of estate planning.
5. Plan for Business Succession
For business owners, the changes make structured succession planning even more important. This might involve gradually transitioning ownership to the next generation, restructuring the business, or creating employee ownership structures. Each approach has different tax implications and should be evaluated based on your specific circumstances.
The Importance of Professional Advice
These changes are complex, and the interaction between different tax reliefs, allowances, and your personal circumstances means there’s no one-size-fits-all solution. What works for one family or business may be entirely inappropriate for another.
The period before 5 April 2026 represents a window of opportunity, but it’s narrowing. If you think you might be affected by these changes, the time to seek professional advice is now. Complex estate planning can take time to implement properly, and leaving it until the last minute may mean missing opportunities or making hasty decisions.
Looking Ahead with Confidence
While these inheritance tax changes represent a significant shift in the planning landscape, they’re not insurmountable. With proper planning, professional guidance, and enough time to implement appropriate strategies, most families can navigate these changes effectively.
The key is to start the conversation now. Whether you’re a business owner planning succession, a farmer considering the future of agricultural land, or an investor with AIM shares, understanding how these changes affect you personally is the first step toward making informed decisions.
Remember, inheritance tax planning isn’t just about minimising tax – it’s about ensuring your wishes are carried out and your family is protected. The changes coming in April make this conversation more important than ever.
This article is for general information only and does not constitute advice. All information is correct at the time of writing and is subject to change in the future. Please do not act based on anything you might read in this article.
The value of your investments (and any income from them) can go down as well as up and you may not get back the full amount you invested.