The Fundamental HMRC Rules
Commercial property in a SIPP is regulated by HMRC's rules for registered pension schemes, primarily set out in the Finance Act 2004 and subsequent HMRC guidance (notably RPSM — the Registered Pension Schemes Manual). Understanding these rules is critical before proceeding with any SIPP property transaction.
The key principles are:
- All SIPP investments must be made on arm's length, commercial terms
- The property must be held for investment purposes — not for the personal use of the member or any connected party
- Any borrowing must not exceed 50% of the net asset value of the SIPP fund
- The property cannot be residential or mixed-use with a material residential element
- Transactions with connected parties are permitted but must be on commercial terms
The 50% Borrowing Limit Explained
A SIPP can borrow to fund a property purchase, but the borrowing must not exceed 50% of the pension fund's net asset value at the time the loan is drawn down. This is calculated across the whole fund — not just the property element.
Example: A SIPP contains £400,000 in cash and investments. It can borrow a maximum of £200,000 (50% of £400,000), giving total purchasing power of £600,000 before costs. If the fund value subsequently falls after the mortgage is drawn, the SIPP is not required to immediately repay the excess — the test is applied at the point of borrowing.
The borrowing must be from a regulated lender (or an SSAS loanback in the case of a SSAS — see our SSAS Property Finance guide). Informal lending from connected parties into a SIPP is not permitted. Our SIPP LTV Calculator can help you model different fund values and purchase prices to understand your position.
Connected Party Transactions
One of the most powerful features of SIPP commercial property is the ability to transact with connected parties — most commonly, a SIPP member's own business renting the property. This is entirely legitimate provided the transaction is on arm's length, commercial terms.
What this means in practice:
- The rent must reflect market rate — what an unconnected tenant would pay. A professional valuation (usually an RICS surveyor) is required to evidence this
- A formal lease must be in place between the SIPP and the tenant (even if the tenant is the member's company)
- Rent must be paid regularly and on time — arrears can create HMRC complications
- The purchase price of the property from a connected party must also be at market value
Connected party transactions require additional due diligence and documentation, and most SIPP providers have specific processes for approving them. Our guide to SIPP property ownership explains the legal structure in more detail.
Ongoing Compliance Requirements
Owning commercial property in a SIPP is not a set-and-forget strategy. HMRC requires that the property continues to be held on commercial terms throughout the period of ownership. Key ongoing obligations include:
- Regular rent reviews — to ensure the rent remains at market rate
- Property maintenance — the SIPP trustee is responsible for the property and must ensure it is maintained adequately
- Buildings insurance — must be maintained in the name of the SIPP
- SIPP accounts — the annual pension scheme return must include the property and its valuation
- Periodic valuations — most SIPP providers require a professional valuation every 3 years
The costs of ongoing compliance should be factored into your return calculations. Our guide on SIPP setup and running costs covers these in detail.