SIPP Prohibited Investments: What You Cannot Hold and the Penalties If You Do

The SIPP (Self-Invested Personal Pension) is rightly celebrated for its investment flexibility. Unlike traditional personal pensions that restrict members to a limited fund range, a SIPP can hold stocks, bonds, commercial property, ETFs, investment trusts, some alternative assets, and more. But there are clear limits — and the assets that fall outside those limits are not merely inadvisable. Investing in prohibited assets in a SIPP triggers punitive tax charges that can destroy a substantial portion of your fund.

Understanding what is prohibited, why, and what happens when the rules are breached is essential for any SIPP holder — particularly for expats managing SIPPs from abroad, where the oversight of the SIPP provider may feel more distant.

Why HMRC Prohibits Certain SIPP Investments

The principle behind HMRC's restriction list is straightforward: pension tax relief is intended to encourage saving for retirement income, not to provide tax advantages for personal consumption or investment in assets that cannot be independently valued or that could be used for personal benefit.

HMRC classifies prohibited investments as taxable property under the Finance Act 2004. If a SIPP holds taxable property, it triggers two charges:

1. The scheme sanction charge — payable by the pension scheme (ultimately the member) at 40% of the value of the prohibited asset
2. The unauthorised payment charge — payable by the member at 40% of the value, with an additional 15% surcharge in some cases

These can combine to take up to 70% or more of the asset's value, depending on the exact structure of the transaction.

The List of Prohibited Investments

Residential Property

This is the most commonly encountered prohibition. A SIPP cannot hold:

• Residential houses, flats, or apartments
• Holiday homes (including overseas holiday property)
• Buy-to-let residential property
• Student accommodation designed for residential use
• Residential care homes (where the living quarters are the primary asset)

The prohibition extends to indirect holdings — you cannot use a SIPP to hold shares in a company whose primary asset is residential property if the purpose is to give the pension scheme effective exposure to residential property. Attempts to structure around the residential property rule through intermediate companies are specifically targeted by HMRC anti-avoidance provisions.

What CAN be held: Commercial property (offices, retail units, industrial units, commercial farms, hotels under certain conditions) can be held in a SIPP. This is a genuinely valuable facility — a business owner or investor can hold their trading premises in a SIPP, paying commercial rent from the business to the pension. But the line between commercial and residential is not always obvious. A building with ground-floor commercial space and residential upper floors, for example, may partially qualify. Get specialist advice before proceeding with any property investment in a SIPP.

Overseas Residential Property

A common misconception among expats is that overseas residential property escapes the prohibition. It does not. The rules apply to residential property wherever it is located in the world. A UK national living in Spain cannot hold their Spanish villa in their UK SIPP. The same applies to holiday apartments in Bali, Thailand, or Egypt. The prohibition is global.

Tangible Moveable Property

SIPP investment in tangible moveable property (physical assets you can touch and move) is generally prohibited. This includes:

• Collectibles — art, antiques, coins, stamps, wine, whisky, classic cars
• Jewellery — including gold jewellery (though gold bullion in certain forms is treated differently — see below)
• Fine art and sculptures
• Vintage motorcycles and classic cars

The logic is clear: these are assets that can be personally enjoyed by the member, defeating the purpose of the pension tax relief.

Gold and precious metals: The position on gold is more nuanced. Gold coins or gold bars held as investment assets through a recognised custody arrangement and an LBMA-approved vault can, in some cases, be held in a SIPP without triggering the taxable property rules — because they are not "tangible moveable property" in the same sense (they are financial commodities held in custody). However, physical gold coins that could be personally used or enjoyed are prohibited. The distinction between qualifying gold bullion and prohibited gold jewellery or collectible coins is technical; seek specialist advice.

Cryptoassets — An Evolving Area

HMRC's position on cryptoassets in SIPPs is that some cryptoassets may fall within the definition of taxable property, particularly where they are structured as property-backed tokens or cannot be independently valued. Bitcoin and major cryptocurrencies are not straightforwardly "prohibited" under the existing taxable property rules — they are intangible assets rather than tangible moveable property — but SIPP providers have generally been reluctant to permit cryptocurrency holdings due to:

• Valuation difficulties
• Custody complexity
• Regulatory uncertainty
• Reputational risk

Most mainstream SIPP providers do not offer cryptocurrency investment. A small number of specialist platform SIPPs do, subject to strict conditions. If you are considering cryptocurrency in a SIPP, you must use a provider that explicitly supports it and has confirmed compliance with HMRC's current guidance. The rules in this area are evolving and may tighten.

Employer-Related Investments

A SIPP cannot make employer-related investments in excess of 5% of fund value. This means:

• The SIPP cannot hold more than 5% of its value in shares of your employer (or a company connected to you)
• The SIPP cannot make loans to your employer
• The SIPP cannot use more than 5% of its value in transactions with connected parties

This rule prevents the pension from being used as a captive financing tool for the member's business.

Loans to Connected Parties

A SIPP cannot make loans to the member or to connected parties (spouse, civil partner, parent, sibling, or business partner). Even if structured as a commercial loan with market-rate interest, a loan by a SIPP to the member or a connected person is prohibited.

There is a specific exception for Small Self-Administered Schemes (SSAS), which can make loans to the sponsoring employer under strict conditions. This is a key structural difference between SIPP and SSAS — a SSAS is specifically designed for owner-managed businesses wanting to borrow from their own pension scheme.

What Happens When a SIPP Inadvertently Holds a Prohibited Asset

The charges are severe and automatic:

1. Scheme sanction charge: 40% of the market value of the prohibited asset, payable by the SIPP trustee (which is then passed on to the member's fund). This is reported on a pension scheme tax return.
2. Unauthorised payment charge: 40% of the market value, payable by the member via self-assessment. An additional 15% surcharge may apply if the value exceeds 25% of the fund.
3. The prohibited asset remains in the SIPP — it does not automatically leave; the member must find a way to extract or sell it, and that extraction may itself trigger further charges.

The combined impact can exceed 70% of the asset's value. In extreme cases where the prohibited investment is large relative to the fund, the charges can render the fund almost entirely depleted.

Common Scams and Fraudulent Schemes Targeting SIPP Holders

The prohibited investment rules are well known to fraudsters who target SIPP holders with fraudulent investment schemes. Common patterns include:

• Overseas property investment schemes — "invest your SIPP in off-plan apartments in [country]" — these are prohibited, and many are fraudulent
• Carbon credits, rare earth minerals, biofuels — promoted as compliant SIPP investments; most are not
• "High return" private bonds — promoted through cold-calling; many are unauthorised investments
• Hotel rooms and car parking spaces — these have been the subject of specific FCA warnings; some can be structured to be SIPP-compliant but many schemes promoting them are fraudulent or prohibited

HMRC and the FCA have published joint guidance on pension scams involving prohibited SIPP investments. If you are approached with an investment promoted as suitable for a SIPP, verify its status with the FCA register and seek independent advice before proceeding.

The SIPP Provider's Compliance Role

Your SIPP provider has a duty to assess whether a proposed investment is permitted before executing it. Most full SIPP providers operate an investment vetting process. However:

• Not all SIPP providers are equally thorough — some lower-cost platforms apply less scrutiny
• Some fraudulent schemes have obtained letters from advisers misrepresenting their SIPP eligibility
• Ultimately, the member bears the tax charge if a prohibited investment is found — the SIPP provider's failure to prevent it does not eliminate the member's liability (though there may be grounds for a separate complaint)

Use a reputable, FCA-authorised SIPP provider. Check it is on the FCA register at register.fca.org.uk.

How Global Investments Can Help

For expats managing UK SIPPs from abroad, the investment options can seem remote and difficult to navigate. Global Investments works with expat clients to review SIPP investment portfolios, identify any assets that may be at risk of prohibited status, and structure overseas investments in ways that do not compromise pension compliance.

If you have been approached with an investment that was described as suitable for your SIPP — particularly involving overseas property, alternative assets, or high-return loan arrangements — contact us for an independent assessment before committing. The cost of a compliance review is a fraction of the potential tax charges.

Please note: HMRC's rules on SIPP permitted investments are set out in the Finance Act 2004 and associated guidance. Rules and HMRC interpretations can change. This guide reflects the position as understood in 2026. Always seek regulated financial and legal advice before making any investment in a SIPP.