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Inheritance tax and trusts

Securing Your Estate: The Rysaffe Principle Explained

By
Omar Aswat CTA
Reading time
5 min
Published
5 November 2024
Last reviewed
10 October 2026
Inheritance tax and trusts
On this page5 sections
  1. Key Takeaways
  2. What is the Rysaffe Principle?
  3. How It Works
  4. Example: Ms Holmes’s Estate Planning
  5. Benefits of the Rysaffe Principle
  6. Considerations and Challenges
  7. Will HMRC Challenge These Arrangements?
  8. Conclusion
  9. Next Steps
  10. Contact us today to start enhancing your estate planning!

Key takeaways

  1. 1The Rysaffe principle derives from the 2003 case of Rysaffe Trustee Company (CI) Ltd v Inland Revenue Commissioners.
  2. 2Given the potential for significant IHT savings, concerns about HMRC scrutiny are valid.
  3. 3If you require specialised advice on inheritance tax planning, ASWATAX is ready to assist.

Inheritance Tax (IHT) poses a significant concern for individuals with substantial assets.

Effective estate planning is essential to mitigate IHT liability, and one strategy that stands out is the Rysaffe principle. This method allows you to optimise your estate and preserve wealth for future generations.

In this article, we explore the Rysaffe principle, its advantages, challenges and key considerations.

Key Takeaways

  • The Rysaffe principle is a way to reduce inheritance tax by setting up multiple trusts on different days.
  • Trusts created on different days are not “related settlements”, but the settlor’s own 7-year cumulation and the 20% entry charge still apply.
  • Benefits include maximising the nil-rate band, avoiding asset aggregation, and customising gifts for family needs.
  • Setting up multiple trusts can lead to long-term inheritance tax savings.
  • Creating multiple trusts can be complex and may come with additional administrative costs.
  • To receive individual tax benefits, you must establish trusts on different days.
  • Professional advice is crucial to ensure compliance with UK tax rules.
  • HMRC generally accepts the Rysaffe principle when applied correctly.
  • The Rysaffe principle is an effective estate planning tool for preserving wealth for future generations.

What is the Rysaffe Principle?

The Rysaffe principle derives from the 2003 case of Rysaffe Trustee Company (CI) Ltd v Inland Revenue Commissioners. This ruling clarified the treatment of multiple trusts under inheritance tax law.

The court established that creating several discretionary trusts on different days enables more favourable tax treatment. Each trust is considered a separate entity for IHT purposes, which can significantly enhance an individual’s tax position.

How It Works

The essence of the Rysaffe principle lies in establishing multiple discretionary trusts rather than a single trust. Under IHT regulations, the total value of all property placed in a trust within a 10-year period may be aggregated, potentially pushing the trust into a higher tax bracket.

By setting up multiple trusts on different days, you ensure HMRC treats each trust independently. This allows each to benefit from its own nil-rate band (NRB), currently £325,000 (frozen to April 2031). Consequently, a substantial portion of wealth can be sheltered from IHT.

Example: Ms Holmes’s Estate Planning

Consider Ms Holmes, a successful entrepreneur with a growing business and a diverse investment portfolio. She aims to secure her wealth for her children while minimising potential inheritance tax liabilities, particularly in light of anticipated growth in her investments.

If Ms Holmes were to place £500,000 worth of shares from her investment portfolio into a single trust, the transfer would be a chargeable lifetime transfer. Assuming the nil-rate band is £325,000 and she has made no other chargeable transfers in the previous seven years, tax at 20% would be due on £175,000 on entry, which is £35,000 (before exemptions).

To optimise her estate planning, Ms Holmes decides to implement the Rysaffe principle. Instead of establishing one trust, she creates 5 separate discretionary trusts, each set up on different days, allocating £100,000 worth of shares to each.

Rysaffe means trusts created on different days are not “related settlements”, but the settlor’s own 7-year cumulation and the 20% entry charge still apply, and since 2015 additions on the same day are aggregated. Funding the five trusts with £500,000 is still a chargeable lifetime transfer: 20% on £175,000 is £35,000 at entry (before exemptions). The nil-rate band available to each trust for ten-year and exit charges is also reduced by Ms Holmes’s chargeable transfers in the previous 7 years, so each trust cannot assume a full £325,000.

Benefits of the Rysaffe Principle

  1. Maximising the Nil-Rate Band: Distributing assets across multiple trusts enables each to utilise its own NRB, reducing or potentially eliminating IHT charges.
  2. Avoiding Aggregation: By creating trusts on different days, assets are not aggregated for tax purposes, providing greater flexibility in estate planning.
  3. Customised Gifting: This strategy allows for tailored distribution of assets among beneficiaries, enabling each trust to serve specific family needs.
  4. Long-Term Savings: Over time, the Rysaffe principle can lead to significant reductions in periodic IHT charges for discretionary trusts.

Considerations and Challenges

While the Rysaffe principle offers notable advantages, several challenges should be considered:

  1. Complexity of Trusts: Setting up multiple trusts increases administrative demands and may incur additional legal fees.
  2. Timing is Essential: To maximise the benefits, trusts must be established on different days. Failing to do so may result in the aggregation of assets and loss of tax advantages.
  3. Professional Guidance Required: This complex strategy necessitates careful planning. Consulting with a tax professional or estate planner is crucial to ensure compliance with UK tax laws.

The Rysaffe principle derives from the 2003 case of Rysaffe Trustee Company (CI) Ltd v Inland Revenue Commissioners.

Will HMRC Challenge These Arrangements?

Given the potential for significant IHT savings, concerns about HMRC scrutiny are valid.

The General Anti-Abuse Rule (GAAR) allows HMRC to investigate arrangements primarily designed for tax avoidance.

However, the legislation was amended in 2015: additions to settlements on the same day are now aggregated (IHTA ss62A to 62C), which has curtailed pilot-trust planning. Trusts created on different days remain separate settlements following the Rysaffe case, provided the principle is applied correctly.

Conclusion

The Rysaffe principle is an effective strategy for minimising inheritance tax liability through multiple discretionary trusts. When executed properly, it maximises the nil-rate band and helps avoid asset aggregation, leading to substantial IHT savings.

Given its complexity, it is essential to seek expert advice to ensure trusts are structured in compliance with current tax laws. With thoughtful planning, the Rysaffe principle can play a crucial role in a comprehensive estate planning strategy, ensuring that more wealth is preserved for beneficiaries.

Next Steps

If you require specialised advice on inheritance tax planning, ASWATAX is ready to assist. Our experienced team offers tailored solutions, structures and strategies, including the Rysaffe principle, to help optimise your IHT plan.

Contact us today to start enhancing your estate planning!

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