Please note: If you wish to contribute before the end of the 2025/26 tax year, you need to ensure that any payment is received in your member bank account by close of business Thursday 2 April 2026 as we cannot guarantee any payments made from Friday 3 to Sunday 5 April will be received on those days. If a contribution is not received into the member bank account by 5 April 2026, it will be treated as a 2026/27 contribution.
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Please note: If you wish to contribute before the end of the 2025/26 tax year, you need to ensure that any payment is received in your member bank account by close of business Thursday 2 April 2026 as we cannot guarantee any payments made from Friday 3 to Sunday 5 April will be received on those days. If a contribution is not received into the member bank account by 5 April 2026, it will be treated as a 2026/27 contribution.
View our Current Terms and Conditions of Business

Understanding the roles of members and trustees

A Self-Invested Personal Pension (SIPP) gives individuals greater control and flexibility over their retirement savings. However, with that flexibility comes a clear legal and operational structure. Two key parties sit at the heart of every SIPP: the member and the trustee. Understanding the distinct roles and responsibilities of each is essential for anyone considering, or already holding, a SIPP.

 

The Role of the SIPP Member

The member is the individual for whose benefit the SIPP is established. In simple terms, it is the member’s pension, and the assets within the SIPP are held solely to provide retirement benefits for them (and potentially their beneficiaries).

The member’s key responsibilities typically include:

  • Making investment decisions

In a SIPP, the member usually chooses how the pension funds are invested. This can include a wide range of assets such as listed securities, funds, commercial property, and other HMRC-permitted investments.

  • Providing instructions

While the member decides what they want to invest in, they do not carry out transactions themselves. Instead, they give instructions to the SIPP trustee or administrator, who then executes those instructions if they are permitted.

  • Understanding risk and suitability

The member bears the investment risk. If an investment performs poorly, the impact falls on the member’s pension value, not the trustee.

  • Complying with SIPP rules

Members must ensure their instructions are within HMRC pension rules and the specific SIPP’s trust deed and rules. Trustees are not responsible for the commercial merits of an investment.

In short, the member controls the strategy and direction of the SIPP, but not the legal ownership or administration of the assets.

 

The Role of the Trustee

The trustee is the legal owner of the SIPP assets and holds them on trust for the benefit of the member. This is a fundamental point: the assets do not belong directly to the member, even though they are held exclusively for their benefit.

The trustee’s primary responsibilities include:

  • Acting in accordance with the trust deed and rules

Every SIPP operates under a trust deed and rules, which set out what the trustee can and cannot do. The trustee must act strictly within these governing documents at all times.

  • Ensuring regulatory and tax compliance

Trustees are responsible for ensuring the SIPP complies with HMRC pension legislation and, where applicable, FCA requirements. This includes monitoring contributions, benefits, and permitted investments.

  • Safeguarding assets

The trustee holds legal title to all SIPP assets and must ensure they are properly registered, protected, and administered.

  • Executing member instructions

Trustees generally follow the member’s investment instructions, provided those instructions are permitted under HMRC rules and the trust deed. They do not usually assess the suitability or quality of the investment itself.

 

Trustee and Administrator: Often the Same Entity

In many modern SIPP structures, the trustee also acts as the SIPP administrator. This means the same entity may be responsible for both:

  • Holding the assets as trustee, and
  • Carrying out the day-to-day administration of the SIPP.

As administrator, the trustee may handle tasks such as:

  • Processing contributions and transfers
  • Executing investment transactions
  • Maintaining records and valuations
  • Providing statements and reports
  • Managing benefit payments and crystallisation events

Even where these roles are combined, the trustee must still act in accordance with the trust deed and rules, and within HMRC and regulatory requirements. The dual role does not give the trustee discretion to override member instructions unless they breach those rules.

 

How the Member and Trustee Work Together

A SIPP works best when there is a clear understanding of responsibilities:

  • The member decides what they want to do with their pension.
  • The trustee ensures those decisions can be implemented legally and correctly.
  • The trust deed and rules form the framework that governs both parties.

This separation of roles protects the integrity of the pension scheme while still allowing the flexibility that makes SIPPs attractive.

 

Summary

A SIPP offers a powerful level of control, but it is not unstructured. The member directs the strategy and accepts the investment risk, while the trustee holds the assets, administers the scheme, and ensures everything operates within the trust deed, rules, and pension legislation.

Understanding this balance is key to using a SIPP effectively and responsibly.