Business Property Relief Changes Now in Force
What This Means for Business Owners
From 6 April, the rules surrounding Business Property Relief (BPR) have materially changed. For many business owners, this represents one of the most significant shifts in Inheritance Tax planning in a generation.
For decades, qualifying trading businesses could often be passed down to the next generation with little or no Inheritance Tax exposure. That long-standing position has now become more nuanced. While relief remains available, it is no longer unlimited, and the introduction of a cap means that part of a successful business may now fall within the scope of tax on death.
This change is not confined to agriculture or rural estates. It affects trading companies across all sectors; professional practices, manufacturing firms, construction businesses, hospitality groups, care providers and owner-managed enterprises throughout the UK.
What Has Changed From 6 April?
Under the new regime, full 100% Business Property Relief now applies only to the first £2.5 million of qualifying business assets per individual. Any qualifying value above that threshold will generally receive relief at 50%, which results in an effective Inheritance Tax exposure of 20% on the excess.
For married couples, combined structuring may allow up to £5 million to benefit from full relief, but beyond that level, exposure arises. In addition, non-trading assets held within a company, such as surplus cash, investment properties or certain intercompany balances, may not qualify for relief at all and could be exposed to tax at the full 40% rate.
Historically, many trading businesses qualified for full relief without a monetary limit. That uncapped protection has now been removed. The practical effect is that the larger and more successful a business becomes, the more important succession planning becomes.
A Practical Illustration
To understand the impact, consider a single shareholder who owns a trading company valued at £10 million.
Under the new rules, only £2.5 million would benefit from full relief. The remaining £7.5 million would generally qualify for 50% relief, meaning £3.75 million becomes taxable. At the prevailing Inheritance Tax rate of 40%, this could create a liability of £1.5 million.
Under the previous regime, that same business may have passed without any Inheritance Tax charge at all.
This example demonstrates how the introduction of a cap changes the position materially for growing businesses.
The Liquidity Challenge
The issue is not simply the tax calculation. Inheritance Tax is normally payable within six months of death.
Where wealth is concentrated in a trading company rather than liquid assets, estates may struggle to fund the liability. This can force difficult decisions at an already sensitive time. Funds may need to be extracted from the company, potentially triggering further Income Tax or Dividend Tax charges. Borrowing may be required. In some circumstances, part of the business may need to be sold.
The commercial strain can be significant and, if not anticipated, destabilising.
Growth Now Creates Exposure
One important consequence of the reform is that business growth itself can increase Inheritance Tax exposure.
A company valued comfortably below the threshold today may exceed it in future years. Many founders who reinvest profits and build long-term value have not historically viewed growth as creating additional tax risk. Under the new regime, that assumption no longer holds true.
Success must now be accompanied by forward planning.
The Position on Surplus Cash
Surplus cash within companies also requires careful review. While a company may clearly be trading, excessive retained cash beyond normal working capital requirements can complicate the relief position. HMRC may scrutinise whether parts of the balance sheet represent non-trading activity.
Regular review of company valuations and asset composition is therefore increasingly important.
International and Temporary Non-Residence Considerations
For business owners who have spent time abroad, further complexity can arise. Those who have been non-UK resident for fewer than five complete tax years before returning may fall within the Temporary Non-Residence rules.
In certain circumstances, gains realised during the period of non-residence can fall back into the UK tax net upon return. When combined with the new BPR cap, this can create unexpected exposure.
Cross-border planning now requires even greater precision.
Planning Remains Possible But Must Be Deliberate
It is important to stress that the changes do not remove planning opportunities. However, they do mean that ownership structures, spousal shareholdings, trust arrangements and lifetime gifting strategies must be considered more carefully and earlier in the business lifecycle.
Rushed decisions can be as damaging as inaction. Sensible planning requires time, clarity and alignment with commercial and family objectives.
Succession planning is not simply a tax exercise. It is about control, governance and long-term vision. Who will run the business in the future? How will ownership transfer? Will the next generation have sufficient liquidity to meet any tax liability without harming the company?
These questions now carry greater urgency.
A Sensible Time to Review
The reforms act as a prompt for review, not panic. However, ignoring the changes is unlikely to be the correct approach. For many business owners, this is the first time that a portion of their trading company may realistically face Inheritance Tax exposure.
At Morgan Reach, we advise business owners on integrating corporate and personal tax planning, ownership structuring and long-term succession strategy. Our focus is not merely responding to legislative change, but ensuring that growth, governance and family objectives remain aligned in a tax-efficient and commercially sound manner.
If your business has grown in value, or is expected to do so, now is an appropriate time to review how the new Business Property Relief rules interact with your company and your wider estate planning strategy.
Planning early does not mean acting immediately. It means understanding your exposure before decisions are forced upon you.

