Don't invest unless you're prepared to lose all the money you invest. This is a high-risk investment and you are unlikely to be protected if something goes wrong.
Business Relief (BR)—formerly Business Property Relief—is a cornerstone of UK estate planning, allowing qualifying assets to be passed on with up to 100% relief from Inheritance Tax (IHT). However, following the 2025 Budget, the landscape has fundamentally shifted. From 6 April 2026, new caps will change how sophisticated investors protect their legacy.
What is business relief?
Business Relief is a government incentive designed to prevent the breakup of businesses to pay IHT bills. While the official HMRC Inheritance Tax thresholds usually apply a 40% tax to estates over £325,000, qualifying assets can receive either 50% or 100% relief (subject to individual circumstances and change).
The “2026 shift”: 100% relief is no longer unlimited
Historically, BR provided unlimited 100% protection. Under the new regime, the level of relief depends on the asset type and its total value:
The £2.5 million 100% cap: Each individual now has a £2.5 million combined allowance for assets qualifying for 100% relief (e.g., unquoted trading shares, EIS, and SEIS).
The 50% “tail”: Any value exceeding this £2.5m threshold will receive only 50% relief, resulting in an effective 20% IHT rate.
The AIM pivot: From April 2026, all qualifying AIM-listed shares move to a flat 50% relief rate, regardless of value. Notably, AIM shares do not use up your £2.5m allowance for 100% relief assets.
Transferable allowance: In a major win for couples, this £2.5m cap is transferable between spouses. A surviving spouse can combine allowances to protect up to £5 million at 100% relief (subject to qualification and change).
Important: Tax reliefs are subject to individual circumstances and may change. All capital invested in startup companies through EIS and SEIS schemes is at risk and may be lost entirely.
What assets qualify for business relief?
To secure relief, assets must be held for at least two years and the business must be “wholly or mainly” trading rather than investing, as outlined in HMRC’s technical guidance.
100% relief assets (within £2.5m cap)
Unquoted trading companies: Shares in private limited companies, including family businesses.
EIS and SEIS funds: Most private, early-stage trading companies qualifying for Enterprise Investment Scheme and Seed Enterprise Investment Scheme tax reliefs.
Business interests: Sole trader or partner interests in a trading business.
50% relief assets (always)
AIM-listed shares: “Traded but not listed” shares are now permanently in the 50% bracket.
Controlling interests: Owning more than 50% of voting rights in a main-market listed company.
Personal business assets: Land, buildings, or machinery owned personally but used “wholly or mainly” by a business you control.
Risk reminder: While these assets may qualify for business relief, investments in early-stage and growth companies carry significant capital risk. You could lose all your money and capital is totally at risk. You should seek independent financial and tax advice before investing.
Graph showing IHT receipts from tax year 2001 to 2002 to tax year 2020 to 2021
The SyndicateRoom Edge: data-driven BR strategy
With the move to a capped system, the “tax-efficiency stack” for private EIS investments has become the premier choice for investors under the £2.5m limit.
| Investment Type | IHT Relief (2026) | Income Tax Relief | Max Annual Investment |
|---|---|---|---|
| SEIS (Private) | 100% (up to cap) | 50% | £200,000 |
| EIS (Private) | 100% (up to cap) | 30% | £1m (£2m for KIC*) |
| AIM Shares | 50% Flat | 0% | Unlimited |
*Knowledge Intensive Companies
Our analysis of 1,000+ startups shows that 90% of un-diversified EIS portfolios fail. For a £10,000 investment by a 45% tax bracket investor, the total “efficiency stack” may include up to £2,760 in Income Tax relief and up to £3,680 in IHT savings (subject to individual circumstances). However, total capital at risk is £10,000, which may be lost entirely. By diversifying across 30–50 companies through our investment approach, we aim to protect both your capital and your relief, though losses are possible across the portfolio.
Use our tax relief calculator to see potential tax savings alongside total capital risk for your specific circumstances.
Business relief FAQs
Q: Does the new £2.5m cap apply to my AIM portfolio?
A: No. AIM shares are in a separate 50% relief category. They do not consume your £2.5m allowance, which is reserved for assets that still qualify for up to 100% relief, like private trading shares or EIS funds. Tax reliefs are subject to individual circumstances and may change.
Q: What is “replacement relief”?
A: If you sell a BR-qualifying asset and reinvest into another within three years, you may maintain your two-year ownership clock. The combined ownership must be at least two out of the last five years. This is subject to HMRC rules and individual circumstances.
Q: Are ISAs exempt from IHT?
A: Standard ISAs are fully taxable for inheritance tax purposes. However, if your ISA holds qualifying AIM shares, it could potentially benefit from 50% Business Relief after a two-year holding period (subject to qualification and change).
Q: What is an “excepted asset”?
A: Any asset not used “wholly or mainly” for business purposes—such as surplus cash, investment properties, or personal-use assets—is excluded from relief. HMRC will subtract the value of these assets from your total BR claim, as detailed in their business property relief guidance.
Q: How does HMRC determine which businesses are eligible for business relief?
A: To secure BR, a business must pass the “wholly or mainly” test. HMRC looks at five key pillars to ensure the business is a trading concern, not a passive investment vehicle:
Turnover: Is the majority of revenue from trading activities?
Net profit: Is the profit predominantly generated by trade?
Capital employed: Are assets (like cash) used for the business’s future needs, or are they “excepted assets” (excessive cash/private assets) that should be excluded from relief?
Employee time: Is the staff’s time spent on trading or managing investments?
The overall context: How does the “feel” of the business reflect its primary purpose?
Q: What risks should I consider with BR-qualifying investments?
A: EIS and SEIS investments are high-risk investments in early-stage companies. You could lose all your money and capital is totally at risk. Tax reliefs depend on your individual circumstances and may change. Companies must maintain qualifying trading status for BR to apply. You should seek independent financial and tax advice before investing. Learn more about our due diligence process.
Secure your legacy before the deadline
The transition to a capped relief system means timing is now a critical risk factor. Our Access EIS Fund is designed to provide high-growth, 100% BR-qualifying exposure before the new caps take effect, though all capital invested is at risk.
Ready to explore BR-qualifying investments?
Disclaimer
The information on this page does not constitute financial advice and is provided on an information basis only. Tax reliefs are subject to individual circumstances and may change. All capital invested in startup companies through EIS and SEIS schemes is at risk and may be lost entirely. You should seek independent financial and tax advice before making any investment decisions.
Please note: our office hours are weekdays, 9.30am - 5.30pm.
