IHT Planning for London Homeowners: Protecting Your Estate in 2026

London's property market has long been the engine of wealth creation for homeowners across the capital. But with average house prices in many boroughs well above the inheritance tax (IHT) nil-rate band, more families than ever are finding themselves caught in the IHT net — and without proper planning, a significant portion of that hard-earned wealth could end up with HMRC rather than the next generation.

Why London Homeowners Are Particularly Exposed

The inheritance tax nil-rate band has been frozen at £325,000 since 2009, and the residence nil-rate band (RNRB) at £175,000 since 2020. Both are frozen until at least April 2030. Meanwhile, the average property price in London remains well above £500,000, and in boroughs like Kensington and Chelsea, Westminster, and Camden, individual properties routinely exceed £1 million.

This means that even a modest London family home — combined with savings, investments, and life insurance — can push an estate well above the £1 million combined threshold for a married couple. The result: a 40% tax charge on everything above the threshold.

The Residence Nil-Rate Band Trap

The RNRB was introduced to help people pass on a family home to their children. But it tapers away by £1 for every £2 of estate value above £2 million. For many London homeowners, the RNRB is entirely eliminated — meaning the effective threshold drops back to £650,000 per couple.

This is one of the most common issues we see at Newshams, and it's entirely avoidable with the right planning.

Key IHT Planning Strategies for London Homeowners

1. Lifetime Gifts and the Seven-Year Rule

Gifts made more than seven years before death are generally free from IHT. Making substantial lifetime gifts — particularly of assets that are expected to grow — can remove future growth from your estate entirely. The taper relief system also reduces the tax due on gifts made between three and seven years before death.

2. Business Property Relief and Agricultural Property Relief

If you hold business assets or agricultural property, Business Property Relief (BPR) and Agricultural Property Relief (APR) can provide up to 100% relief from IHT. However, the rules changed significantly in the October 2024 Budget, with a £2.5 million cap on combined BPR and APR relief at 100%, and reduced relief of 50% above that threshold from April 2026. Specialist advice is essential to navigate these changes.

3. Trust Structures

Trusts remain a powerful tool for IHT planning, particularly for London families with complex assets. Discretionary trusts, interest-in-possession trusts, and bereaved minor's trusts each serve different purposes. The ten-year periodic charges and exit charges need careful management, but the protective benefits — particularly for vulnerable beneficiaries — can be substantial.

4. Life Insurance Written in Trust

Life insurance policies written in trust fall outside your estate for IHT purposes. For London homeowners with significant mortgage debt or estate liquidity concerns, this is one of the simplest and most effective planning tools available.

5. Equity Release and Downsizing

For homeowners who are asset-rich but cash-poor, equity release can provide liquidity for lifetime gifts. Downsizing to a smaller property can also free up capital for planning, though care is needed to ensure the RNRB downsizing provisions are properly utilised.

The April 2026 Changes: What London Homeowners Need to Know

From April 2026, the frozen thresholds will be joined by the new BPR/APR cap of £2.5 million. For London business owners and property investors, this could significantly increase IHT exposure on business assets that previously qualified for 100% relief.

If you hold trading business interests, shares in unlisted trading companies, or agricultural property, you should review your estate plan now — before the changes take effect.

How Newshams Can Help

At Newshams Tax Advisers, we specialise in IHT planning for London homeowners and their families. Our Chartered Tax Advisers can:

• Review your current estate and calculate your IHT exposure
• Identify reliefs and exemptions you may be missing
• Structure lifetime gifts and trusts to maximise protection
• Navigate the April 2026 BPR/APR changes
• Coordinate with your solicitor and financial adviser for seamless implementation

Don't leave your family's wealth to chance. Book a consultation with our team today, or contact us for an informal discussion about your estate planning needs.

Frequently Asked Questions

What is the current IHT threshold for a married couple in London? A married couple can currently pass on up to £1 million free from IHT (£325,000 nil-rate band + £175,000 residence nil-rate band per person), provided the estate includes a qualifying residence passed to children. However, the RNRB tapers away above £2 million.

How does the seven-year rule work for gifts? Gifts made more than seven years before death are generally free from IHT. Gifts made within three years are taxed at the full 40% rate, with taper relief reducing the rate for gifts made between three and seven years.

Can I reduce IHT by gifting my London home? Gifting your home while continuing to live in it is treated as a 'gift with reservation of benefit' and won't work for IHT purposes unless you pay a market rent. There are alternative strategies — such as equity release, downsizing, or trust structures — that may be more effective. Specialist advice is essential.

What are the April 2026 IHT changes? From April 2026, Business Property Relief and Agricultural Property Relief will be capped at £2.5 million combined at 100% relief, with 50% relief above that threshold. This could significantly increase IHT for London business owners and property investors.