The Business Relief knowledge gap: are SME leaders missing out?
New Inheritance Tax rules could affect how you pass on your business. But our research reveals only 14% of SME leaders know if their business qualifies.
This article is not advice. If you would like to receive advice on your business' cash reserves, consider speaking to a Financial Adviser.
Business Relief is one of the most valuable Inheritance Tax protections for business owners. It allows business assets to be passed on with reduced or no Inheritance Tax liability.
But with Inheritance Tax rules changing in April 2026, how well do SME leaders understand how Business Relief works?
We surveyed 500 SME leaders to find out. The findings reveal many are unclear on the new rules – and what they could mean for their business’ succession plans.
What changed in April 2026
From April 2026, 100% Business Relief is now capped at £2.5m for qualifying business or agricultural property.
Assets above this threshold can still qualify, but only for 50% relief. That means those who inherit the business may face an Inheritance Tax bill on anything above £2.5m.
For families planning to pass a business to the next generation, the changes are significant. Yet many SME leaders remain unsure about how the relief works.
The Business Relief knowledge gap
Our findings reveal a clear gap between SMEs who are eligible for Business Relief and those who know it. Of the 327 businesses that qualify for Business Relief, only 14% correctly identified themselves as eligible.
Meanwhile, nearly half of respondents (44%) didn’t know if their business qualified at all.
Where the confusion lies
Many SME leaders are unclear on the qualifying criteria.
We asked respondents which criteria typically qualify a business for Business Relief. 42% said they didn’t know.
'Our research shows many SMEs may be working from assumptions that don’t reflect the latest rules,' says Katie Horne, savings expert at Flagstone.
Here’s the most common misconceptions our study found:
| Assumption | Reality |
| 21% of respondents believe family-run businesses automatically qualify. | Ownership structure alone doesn’t determine eligibility. Qualification depends on how the business trades and the nature of its assets. |
| 11% think any business owned for more than two years automatically qualifies. | Meeting the two-year ownership requirement is necessary. But the business must also be a trading business. |
| 10% believe business assets worth more than £2.5m still receive full relief. | Businesses only receive 50% Business Relief for assets over this threshold. |
| 8% think investment holding companies qualify. | Investment businesses don’t qualify for Business Relief. |
| 7% think property letting businesses qualify. | Property letting is excluded from Business Relief. |
Why this matters for succession planning
For business owners thinking about passing on ownership, transferring shares, or timing a succession, understanding Business Relief eligibility is essential. Without it, you risk making succession decisions without a full picture of the potential tax impact.
'Family businesses may want to review their succession plans, as under the new Inheritance Tax rules heirs could face unexpected tax burdens', says Katie Horne.
Some families are already exploring options such as gifting assets early or transferring shares into trusts for a more tax-efficient succession.
Protect what you have built
Knowing your Business Relief position means you can plan your succession with a clear view of the potential tax impact – and make decisions with confidence.
If your succession planning was last reviewed before April 2026, it’s worth sense-checking whether your assumptions still hold.
Simple tools like an Inheritance Tax calculator, alongside guidance from a financial adviser, can help you better understand potential liabilities and plan ahead.
Methodology
The research was conducted by Censuswide on behalf of Flagstone in May 2026. We surveyed 500 UK SME owners, company directors and C-level executives and asked them three questions:
- What best describes your business’s main source of income?
2. Which of the following do you believe would typically qualify for Business Relief from Inheritance Tax?
3. Do you believe your business qualifies for Business Relief from Inheritance Tax?
For respondents whose business’s main source of income was mostly trading activities, mostly trading subsidiaries, or a mix of trading activities and investment/property income, we also asked them to clarify what percentage of their business’s income comes from trading activities or subsidiaries.
By comparing business type, business value, and responses on trading activity, we modelled whether respondents were likely to be eligible for Business Relief.
Eligibility was classified as follows:
• Likely to qualify for Business Relief: sole trader businesses, partnership interests, shares in unquoted/private trading companies and limited company shares, up to the value of £2.5m, where the business is wholly or mainly trading.
• Likely to qualify for partial Business Relief: qualifying business assets above the £2.5m threshold, where 50% relief may apply.
• Likely to be non-qualifying: property letting businesses, investment holding companies, and businesses mainly holding investments.
Please note that assets not used wholly or mainly for business purposes, such as surplus cash or personal-use property, were excluded from the Business Relief calculations.
Once eligibility had been modelled, it was compared with respondents’ answers to whether they believed their business qualified for Business Relief. This was used to assess the gap between perceived and modelled eligibility.
