How inheritance tax changes are creating new estate liquidity challenges

Inheritance tax is entering a period of significant change in the UK. A move to residence-based taxation, reforms to long-standing reliefs, and the expected inclusion of pensions within the inheritance tax net will reshape how advisers approach estate planning over the coming years.

For many clients, these developments do not simply increase potential tax exposure. They also increase the likelihood of estate liquidity gaps – situations where inheritance tax becomes due before estate assets can be accessed.

Even estates that appear substantial on paper can encounter liquidity pressures once probate begins. Wealth held in property, business interests or investment portfolios may take time to realise, while inheritance tax obligations arise much sooner.

For IFAs and financial planners, recognising where these timing gaps may emerge is becoming an increasingly important part of protecting client strategies and avoiding unnecessary disruption to carefully constructed estate plans.

The move to residence-based taxation

One of the most significant changes is the transition from a domicile-based inheritance tax framework to a residence-based system.

Under the new regime, individuals who have been UK tax resident for 10 of the previous 20 tax years will be classified as long-term UK residents. Once this threshold is met, their worldwide estate may fall within the scope of UK inheritance tax.

For internationally mobile clients, this represents a meaningful shift. Individuals who have spent significant time living or working in the UK may find that assets held overseas are now relevant to their inheritance tax exposure.

For advisers who work with clients with international connections – including executives, entrepreneurs and returning expatriates – this change can materially alter estate planning conversations.

The IHT “tail” after leaving the UK

Another feature of the new regime is the continued exposure to inheritance tax even after leaving the UK.

Depending on how long an individual has been resident, they may remain within the UK inheritance tax net for between three and ten years after departing the country.

For advisers supporting internationally mobile clients, this introduces a new layer of complexity. Clients who assume their exposure ends when they leave the UK may still find their worldwide estate within scope for a number of years.

While these rules simplify the technical concept of domicile, they also create new planning considerations around residence history and long-term mobility.

Relief changes and fiscal drag

Alongside the shift to residence-based taxation, several other developments are expanding the number of estates affected by inheritance tax.

Agricultural Property Relief and Business Property Relief have historically played an important role in estate planning for business owners and farming families. From April 2026, however, full relief will apply only to the first £2.5 million of qualifying assets. Relief on values above that level will reduce to 50 percent.

Alternative Investment Market portfolios are also affected. AIM investments that previously qualified for full inheritance tax relief after two years will move to 50 percent relief from April 2026.

Looking further ahead, pensions are expected to fall within the inheritance tax estate from April 2027. For many clients, pension wealth represents a significant proportion of total assets, meaning this reform could substantially increase estate values for tax purposes.

At the same time, inheritance tax thresholds remain frozen until 2030. As asset values continue to rise, more estates are gradually being drawn into the tax net.

Together, these developments mean inheritance tax is becoming relevant to a wider range of clients.

John Sanderson, Director of Partnerships at Provira, says advisers are beginning to see how these policy changes translate into practical challenges during estate administration:

“Some of these changes will create practical knock-on effects for families and executors. If reliefs are capped, more assets may need formal valuations, which can take time and can be expensive. On top of that, the move to residence-based taxation means advisers may need to prove someone’s residency history, and many families still do not realise there can be an inheritance tax ‘tail’ for several years after leaving the UK.”

When tax timing and asset liquidity collide

Inheritance tax is typically due within six months of the date of death. In many cases, it must be paid before probate is granted.

For estates with readily available cash reserves, this may not create a problem. However, many estates hold wealth primarily in assets that cannot be accessed immediately.

Property, private business interests, investment portfolios and pension structures may all require time to value, administer or liquidate. In more complex estates – particularly those involving international assets or family businesses – probate itself may take several months.

The result is often a mismatch between when tax becomes payable and when estate assets can realistically be accessed.

When this happens, executors and families may face difficult choices. Investment portfolios may need to be sold earlier than planned. Property sales may be rushed. In some cases, executors may consider personal borrowing to meet inheritance tax obligations while waiting for the estate to be administered.

These situations rarely reflect poor planning. Instead, they highlight the practical friction between the legal process of probate and the financial obligations estates must meet.

Steve Gauke, Managing Director at Provira, says many families are surprised by how demanding the process can be in practice:

“What families often underestimate is how complex and time-consuming the probate process can be. People naturally assume funds will be released quite quickly, but in reality there is a lot to work through first – locating wills, gathering financial information, confirming who is entitled to what, and navigating the legal process. At the same time, families are often dealing with grief while facing immediate costs such as funerals, probate fees and potentially inheritance tax. When much of the estate is tied up in property or investments, accessing the money to meet those obligations can be far from straightforward.”

Why estate liquidity is becoming more important

As the inheritance tax landscape evolves, advisers are likely to encounter estate liquidity challenges more frequently.

The combination of broader tax exposure, more complex estates and unchanged payment timelines means that even well-planned estates can experience short-term funding gaps during probate.

Several structural factors are contributing to this trend:

• More estates falling within the inheritance tax net due to frozen thresholds
• Reduced reliefs on certain asset classes
• Greater complexity in international and multi-asset estates
• A growing proportion of wealth held in illiquid assets

While the tax framework is changing, the timing rules around inheritance tax payments remain largely the same.

For advisers, recognising these potential timing issues early can help protect both the estate’s value and the integrity of the wider financial plan.

How estate advances help protect the plan

Estate advances provide short-term funding secured against the value of the estate. The advance is repaid once probate is granted and estate assets are realised.

For advisers, this provides a practical solution when liquidity – rather than overall wealth – is the challenge.

Typical situations where an estate advance may help include:

• Paying inheritance tax before probate is granted
• Avoiding the premature sale of investment portfolios
• Preventing distressed property sales
• Supporting beneficiaries or executors during probate delays
• Maintaining the integrity of the estate plan while assets are realised

Rather than forcing structural changes to a carefully designed strategy, the advance simply bridges the timing gap between tax obligations and asset accessibility.

A practical tool for advisers

Estate advances allow advisers to support clients during a period when timing pressures can otherwise disrupt long-term planning.

They enable clients to meet inheritance tax obligations without compromising investment strategies or forcing rushed decisions around property or business assets.

For advisers, this can help preserve assets under management, maintain continuity in long-term strategies and reinforce their role as proactive planning partners.

Importantly, advisers do not need to manage the process themselves. Provira works directly with executors and beneficiaries, providing a structured and compliant process while keeping advisers informed throughout.

Signs a client may face an estate liquidity gap

Advisers may want to explore an estate advance where:

• Inheritance tax is due but the estate holds limited accessible cash
• Assets are primarily tied up in property or investments
• Executors require time to realise estate assets
• Selling investments early would disrupt the long-term planning strategy
• Family members are experiencing financial pressure while probate progresses

Recognising these scenarios early allows advisers to maintain control of the broader estate strategy while ensuring tax obligations can be met.

Planning for a changing landscape

The reforms to inheritance tax represent more than technical adjustments to tax policy. They also increase the likelihood that estates will experience liquidity pressure during probate.

For advisers, anticipating these pressures is becoming an important part of estate planning.

As inheritance tax rules evolve and estates become more complex, advisers are increasingly encountering situations where timing – rather than wealth – becomes the key challenge. Understanding how probate timelines, tax obligations and asset liquidity interact is becoming an important part of modern estate planning.

Estate advances do not replace careful tax planning. Instead, they provide a practical option when the timing of inheritance tax liabilities does not align with the accessibility of estate assets.

At Provira, we work with advisers, executors and families across the UK who are navigating exactly these situations. The patterns are consistent: estates with substantial value but limited immediate cash, inheritance tax liabilities that arrive before assets can be accessed, and families seeking practical solutions that preserve the original financial plan.

When used appropriately, estate advances allow advisers to bridge that gap without forcing decisions that could undermine the wider financial strategy.

About Provira

Provira is the UK’s most established provider of inheritance and estate advances, trusted by hundreds of financial advisers and brokers. The firm has supported thousands of families, advancing £20,000 to over £1 million to help cover inheritance tax, legal fees and personal needs – quickly, securely, and without personal guarantees or property charges.

Provira works closely with introducers and can provide everything from referral copy to co-branded materials. Advisers simply make the introduction and the Provira team manages the process from there.

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