The Basic Exemption: Why SIPPs Pay No Tax on Rent
Under UK tax law, registered pension schemes are exempt from income tax on their investment income. This exemption — set out in section 186 of the Income Tax (Trading and Other Income) Act 2005 — covers interest, dividends and rental income alike. When a SIPP owns a commercial property and receives rent from a tenant, that rent is received entirely free of income tax, regardless of how much the rent is or who the tenant is.
This is not a complex tax planning strategy or a grey-area interpretation of the rules. It is a direct, statutory exemption that Parliament has provided to encourage pension saving. The logic is simple: if pension funds had to pay income tax on their investment returns, the returns available to savers would be lower, and the pension system would be less effective at its core purpose of funding retirement.
The practical implication is profound. A SIPP that owns a commercial property and receives £40,000 per year in rent receives all £40,000. A higher-rate taxpayer who owns the same property personally receives £40,000 but pays £16,000 in income tax, leaving only £24,000. Over time, that difference compounds dramatically.
The Compounding Effect Over Time
Consider a simple example. A SIPP purchases a commercial property in year one and receives £30,000 per year in rental income. That rent is reinvested within the SIPP (in cash, equities, or toward the mortgage). Over 25 years, assuming no rental growth, the SIPP receives £750,000 in rental income — all of it tax-free and compounded within the fund.
If the same property were held personally by a 40% taxpayer, only £18,000 per year would be retained after income tax. Over 25 years, that is £450,000 retained — £300,000 less than the SIPP. And that is before accounting for the compounding effect on reinvested income: the SIPP investor reinvests more each year, generating higher returns that themselves compound tax-free.
This is why pension property investment is not just about convenience or simplicity — it is about fundamentally superior economics for anyone paying income tax above the basic rate. The higher your tax rate, the greater the advantage of holding the property in a pension.
Connected-Party Leases: The Market Rent Requirement
For business owners who hold their trading premises in their SIPP and lease them back to their own company, one important rule applies: the rent must be at market value. The tax exemption on rental income applies regardless of who the tenant is — including connected parties like the member's own employer. But HMRC requires that connected-party transactions are conducted at arm's length.
An artificially inflated rent — where the company pays more than the open market rent to pump money into the pension — would be treated as an unauthorised payment (a contribution in disguise). Conversely, an artificially depressed rent — where the member charges their own company below-market rent as a de facto subsidy — would be a benefit to the connected party and could also constitute an unauthorised payment.
Rent should be set at the market rate on a formal lease, reviewed at market rent review intervals, and supported by independent RICS evidence if the rate is ever challenged. The tax exemption is generous and legitimate — there is no need to push the boundaries. Use our Rental Yield Calculator to assess whether a proposed rent stacks up commercially.
What Counts as Rental Income in a SIPP?
The income tax exemption covers rent in the conventional sense — periodic payments from a tenant for the right to occupy property. It also covers service charge income where the SIPP is charging the tenant for property management and maintenance costs, provided the service charge is properly structured.
Ground rent income from leasehold property is also exempt, as is income from car parks, storage units and other commercial property uses. The common thread is that the income arises from the SIPP's ownership of real property and is received in the SIPP's capacity as landlord.
The exemption does not apply to property-related trading income — for example, if a SIPP were somehow conducting a property development or trading business (which is itself not a permitted pension investment). But for conventional commercial property investment — buy, hold, let and collect rent — the full exemption applies. This is the bread-and-butter of pension property investment and the foundation of its tax efficiency. See our full overview in the tax benefits of SIPP property.
