IHT Planning for Business Owners UK: BPR, Succession Planning, and the 2026 Cap
Business owners with trading interests owned for 2+ years qualify for 100% Business Property Relief — potentially eliminating IHT on the business entirely. From April 2026, the BPR/APR cap of £2.5m per person changes the planning calculus for larger businesses. Cross-option agreements, lifetime gifts with holdover relief, and will trusts remain essential tools.
BPR Rates by Asset Type (2026)
| Asset Type | BPR Rate | £2.5m Cap |
|---|---|---|
| Sole trader business / partnership interest (equity) | 100% | 100% on first £2.5m per person (from April 2026); 50% above |
| LLP membership interest (trading LLP) | 100% | 100% on first £2.5m; 50% above |
| Unquoted shares in a trading company (inc. AIM) | 100% (unquoted) / 50% (AIM from April 2026) | Unquoted: counts in £2.5m cap at 100%. AIM: 50% BPR does not count against the cap |
| Quoted shares in a company you control (>50%) | 50% | Not subject to £2.5m cap (50% BPR is outside the cap) |
| Land, buildings, machinery used by a partnership / company | 50% | Not subject to £2.5m cap (50% BPR is outside the cap) |
| Investment properties held in a trading company | Nil (excepted asset) | BPR apportioned — investment assets reduce qualifying value |
| Cash surplus above trading requirements | Nil (excepted asset) | Must be shown as genuinely needed for the business |
Key IHT Planning Strategies for Business Owners
1. Use both spouses' BPR caps
Each spouse has a separate £2.5m 100%-BPR cap. Structure business ownership so both hold qualifying interests — this gives a family cap of £5m before the 50% rate applies. Transfer shares or partnership interests between spouses to equalise holdings (using the inter-spousal exemption for IHT and no gain/no loss for CGT).
2. Lifetime gifts with holdover relief
Gift unquoted shares or partnership interests now. Holdover relief (TCGA 1992 s165) defers CGT to the donee. If you survive 7 years, the gift falls out of your IHT estate entirely — the BPR cap does not apply to lifetime gifts that become exempt. This is the primary strategy for businesses valued well above £2.5m.
3. Cross-option agreement and life insurance in trust
A cross-option agreement protects BPR on shares by avoiding a binding contract for sale. Write the life policy in trust to keep insurance proceeds outside the estate. Size the policy to cover the buyout price plus any IHT on assets above the BPR cap.
4. Review and minimise excepted assets
Excepted assets (surplus cash, investment properties, non-trading assets) reduce BPR proportionally. Extract surplus dividends before death to reduce excepted-asset proportion. Review annually — particularly for companies with growing cash reserves or property assets.
5. Draft a will that maximises the BPR benefit
A will trust (discretionary or interest in possession) can receive qualifying business assets on death, keeping them within a family trust that continues to qualify for BPR on the trustee's deemed exit charges. Business assets should not be left unconditionally to a spouse if the goal is to use the deceased's NRB as well — leave to children or a trust instead, using the spousal exemption for non-business assets.
Frequently Asked Questions
What is Business Property Relief and how does it reduce IHT for business owners?
Business Property Relief (BPR) is an IHTA 1984 relief (ss103–114) that reduces the IHT value of qualifying business assets. The key rates are: 100% relief on the transfer of a business or interest in a business (sole trader, partnership share, LLP interest, or unquoted company shares); 50% relief on quoted shares in a company the transferor controls, and on land, buildings, or machinery used by a partnership or company in which the transferor owns shares. To qualify, the business interest must have been owned for at least 2 years before death (or the gift). The business must be primarily a trading business — not an investment business. From April 2026, a combined BPR and Agricultural Property Relief cap of £2.5m per person applies to 100% relief. Assets above the cap attract 50% relief (effective IHT rate 20%) rather than 40%.
How does the April 2026 £2.5m BPR cap affect business owners?
From 6 April 2026, 100% BPR (and 100% APR) is capped at a combined total of £2.5m per person per death. If your qualifying business interests exceed £2.5m in value at death, the excess receives only 50% BPR — meaning 20% effective IHT rather than 0%. Each spouse or civil partner has their own separate £2.5m cap. Strategies to manage the cap include: using both spouses' caps (each can hold up to £2.5m of qualifying assets, giving a combined £5m family cap); making lifetime gifts of business interests with holdover relief (the gift is made at no gain for CGT, and if you survive 7 years there is no IHT — the BPR cap applies at death, not on lifetime gifts); restructuring to maximise the proportion of assets within the 100% band; and considering key-person life insurance in trust to fund any IHT liability on the excess.
Does BPR apply to sole trader businesses?
Yes — a sole trader's business qualifies for 100% BPR under IHTA 1984 s105(1)(a) if it has been owned for at least 2 years and is a trading business. The relief applies to the whole business as a going concern — all business assets (premises, goodwill, stock, debtors, work in progress) are included in the qualifying value. Excepted assets (surplus cash not needed for trading, investment properties, assets not used for business purposes) are excluded from BPR and treated as estate assets subject to full IHT. On death, the executor claims BPR on the IHT400 (schedule IHT413). If the business is sold or ceases to be qualifying before death, BPR is lost. From April 2026, the £2.5m cap applies — a sole trader with a business worth more than £2.5m will have IHT (at 20% effective rate) on the excess.
What is a cross-option agreement and how does it protect BPR on death?
A cross-option agreement (also called a double option or buy-sell agreement) is a legal arrangement between shareholders in a private company. When one shareholder dies, the surviving shareholders have an option to buy the deceased's shares (a call option), and the deceased's estate has an option to sell the shares to the survivors (a put option) — but there is no binding obligation for either side until the option is exercised. This structure is critical for IHT because if the shareholders were bound by a binding contract for sale of the shares on death, BPR would be denied under IHTA 1984 s113A (which removes BPR from shares subject to a binding contract for sale). The double option avoids this — neither party is compelled to buy or sell until after death. The life insurance policy funding the buyout is typically written in trust to keep the proceeds outside the estate. From April 2026, the £2.5m cap may mean some BPR is still due even with an agreement in place — key-person insurance should be sized to cover both the purchase price and any residual IHT.
Can business owners make lifetime gifts of shares to reduce IHT?
Yes, and this is one of the most effective long-term strategies. Gifts of unquoted trading company shares or partnership interests qualify for holdover relief under TCGA 1992 s165 — the gain is held over to the donee, so there is no immediate capital gains tax on the gift. The gift starts the 7-year clock for IHT taper relief: if the donor survives 7 years, the value transferred falls out of the estate entirely. This also means the April 2026 BPR cap does not apply (BPR applies at death, not on qualifying lifetime gifts). For very large business interests — where the death estate would exceed the £2.5m cap — gifting shares over a period of years is the main way to remove value from the cap calculation before death. Key considerations: the donor must not retain a benefit from the gifted shares (gift with reservation rules); the donee must not be too young or inexperienced to hold meaningful shares; and shareholders' agreements should be reviewed before any gifting.
What are excepted assets and how do they reduce BPR?
BPR does not apply to the full value of a business if some of its assets are 'excepted assets' under IHTA 1984 s112. An excepted asset is an asset that was neither: (a) used wholly or mainly for the purposes of the business during the 2 years before death; nor (b) required at the time of death for future use for those purposes. Common excepted assets include: surplus cash (beyond reasonable working capital); investment properties held within the business; shares in investment companies; and assets used personally by the owner rather than the business. HMRC apportions the BPR between qualifying and excepted assets proportionally. For example, if a company is worth £3m but £600k of its value is attributable to excepted investment assets, only £2.4m qualifies for BPR. Business owners should regularly review the composition of their business assets and consider extracting genuinely surplus assets (via dividend) to maximise the qualifying proportion.
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