Buying Commercial Property Through a SIPP or SSAS: The Complete Tax Guide

A SIPP or SSAS can purchase commercial property, and the tax treatment inside the pension wrapper is genuinely compelling: rental income accumulates free of income tax, capital gains on disposal are exempt under TCGA 1992 s.271(1), and contributions attract full pension tax relief at the member's marginal rate. For a business owner who rents their own commercial premises, the structure can convert an annual rent bill into a pension-funded asset, with the rent flowing into a tax-free environment rather than a landlord's taxable income.

Residential property is a completely different matter. The taxable property rules in FA 2004 Schedule 29A impose an effective penalty of up to 55-70% on any residential asset acquired by an investment-regulated scheme. That figure is not a marginal rate: it is the combined weight of an unauthorised payment charge on the member (s.208, 40%) and a scheme sanction charge on the scheme administrator (s.209, 15%), with a further surcharge taking the effective rate toward 70% in the worst cases. The prohibition is not a technicality to navigate; it is a hard commercial stop.

This guide sets out what a SIPP and SSAS can hold, why the residential prohibition is structurally enforced, how the commercial property purchase mechanics work in practice (including the 50% borrowing cap, in-specie contributions, and connected-party rent), and how the lump-sum allowance framework and IHT position sit alongside the underlying investment.

What investment-regulated pension schemes can and cannot hold

Not all pension schemes are subject to the taxable property rules. The restrictions in FA 2004 Schedule 29A apply specifically to investment-regulated pension schemes, as defined in Schedule 29A paragraphs 1-2. The definition catches SIPPs and SSASs. It does not catch most standard workplace defined-contribution or defined-benefit occupational schemes, which are not individually member-directed in the relevant sense.

Within a SIPP or SSAS, the default position is that the scheme can hold a wide range of investments: listed equities, bonds, collective investment schemes, cash, commercial property, and certain other assets. The exception is taxable property, which is excluded from permitted investments. Taxable property under Schedule 29A paragraph 6 means:

• Residential property (as defined by reference to SDLT s.116(1)(a) and Schedule 29A paragraph 6: any building or part of a building suitable for use as a dwelling, or land that forms part of the garden or grounds of a dwelling).
• Tangible moveable property (cars, yachts, artwork, wine, and similar).

Schedule 29A paragraph 7 makes the critical carve-out explicit: commercial property is not taxable property. Offices, warehouses, retail units, factories, industrial buildings, and agricultural land and forestry all fall outside the taxable property definition. A SIPP may hold them without restriction under these rules.

Scheme type	Can hold commercial property	Can hold residential property	Borrowing cap
SIPP	Yes (Schedule 29A para 7)	No: taxable property penalty up to 55-70%	50% of net fund assets (s.182)
SSAS	Yes (Schedule 29A para 7)	No: taxable property penalty up to 55-70%	50% of net fund assets (s.182)
Workplace DC / DB	Rarely (not investment-regulated)	No (different restriction basis)	Per scheme rules

Mixed-use properties require careful analysis. Where a property has both residential and commercial elements (a flat above a shop, for example), the residential element may trigger the taxable property rules on the residential portion of the asset. There is no bright-line percentage threshold in Schedule 29A; the question is whether part of the property constitutes residential property within the s.116(1)(a) definition. A property with a clearly separable residential unit will typically need to have that unit excluded from the SIPP's ownership, or the structure reconsidered entirely.

Why residential property is prohibited: the taxable property rules

The penalty for acquiring taxable property (including residential property) inside an investment-regulated scheme is not a retrospective restriction: it is a charge that arises at the point of acquisition and cannot be corrected by later disposal.

Under FA 2004 s.208, the scheme member faces an unauthorised payment charge of 40% (income tax) on the value of the asset acquired. Under FA 2004 s.209, the scheme administrator faces a scheme sanction charge of 15% on the same value. Where the scheme sanction charge is passed to the member (as it often is), the combined effective rate reaches 55%. An additional surcharge can take the effective rate toward 70%. These are set out in HMRC's Pensions Tax Manual at PTM125100.

Applied to a £400,000 residential property, the combined 55% charge amounts to £220,000 in tax, on top of the £400,000 purchase price. The scheme also has an asset it cannot legally hold and will be required to dispose of. There is no route to relief or reversal. The prohibition is therefore not a technical compliance point: it is the dominant commercial fact of SIPP property investment.

HMRC's PTM125000 is the taxable property index; PTM125200 sets out the residential property definition in full. The definition is aligned with the SDLT residential property definition, so any asset that would attract the SDLT higher rate for residential property is likely to be taxable property for Schedule 29A purposes as well. Holiday lets are residential property under this definition. Airbnb-style short-let properties are residential. A pension scheme cannot hold them.

Commercial property: what qualifies and the tax advantages

Commercial property under Schedule 29A paragraph 7 covers the standard range of UK commercial real estate: office buildings, industrial and warehouse units, retail premises, factories, agricultural land, and forestry. The SIPP's ownership of a commercial property gives it the following tax profile:

• Rental income is tax-free inside the scheme. Registered pension schemes are exempt from income tax on rental income. The Section 24 finance-cost restriction that applies to individual landlords outside a pension wrapper has no application here. See our Section 24 guide for what applies outside a pension wrapper.
• Capital gains on disposal are CGT-exempt. TCGA 1992 s.271(1) exempts gains accruing to a registered pension scheme from CGT. A property that doubles in value inside a SIPP is sold entirely free of capital gains tax.
• Contributions attract tax relief at the member's marginal rate. Cash contributions to the SIPP (used to fund the purchase or the deposit) receive basic-rate tax relief at source, with higher-rate and additional-rate taxpayers claiming further relief through self-assessment.
• The property is outside the member's estate for IHT (currently). Pension funds belong to the pension trust, not the member personally. On death before crystallisation, the fund passes to nominated beneficiaries outside the member's estate. The IHT position is due to change from 6 April 2027: see the IHT section below.

Capital allowances on fixtures and fittings within the commercial property may be available to the tenant (not the SIPP as landlord, which does not carry on a trade). See our capital allowances guide for the mechanics on who can claim and what qualifies.

The borrowing limit: how much can the SIPP borrow?

A SIPP cannot simply borrow whatever is needed to fund a commercial property purchase. FA 2004 s.182 (ss.182-184 for the full framework) imposes a statutory cap: the scheme may borrow up to 50% of the net value of the scheme's assets immediately before the borrowing. HMRC confirms this at PTM124000 and states the formula for money-purchase arrangements as: (APB + PB) / VA must not exceed 0.5, where APB is the amount previously borrowed, PB is the proposed new borrowing, and VA is the value of the scheme's assets before the new borrowing.

In practice this means: a SIPP with £400,000 in assets can borrow a maximum of £200,000 (50% of £400,000), giving total buying power of £600,000 before costs. Exceeding the 50% cap triggers a scheme sanction charge under the PTM135000 framework. HMRC scrutinises borrowing from connected parties: a member lending to their own SIPP must be on arm's-length commercial terms.

The 50% cap applies to the net fund value before the proposed borrowing, not after. If the SIPP already has some borrowing in place, the formula aggregates existing and proposed borrowing (APB + PB) against the current asset value (VA). A SIPP that has grown significantly in value since its last borrowing will have more headroom than one that took out borrowing recently relative to its current size.

Buying commercial property through a SIPP: step by step

The following worked example follows Marcus, a self-employed accountant aged 52 who currently rents his commercial office at £18,000 a year and wants to buy the freehold for £400,000 through a SIPP.

Step 1: Establishing the SIPP and funding the purchase. Marcus has never contributed to a pension. He has unused annual allowance carry-forward from the prior three tax years (up to £60,000 per year, so £180,000 carry-forward headroom) plus the current year's £60,000 allowance. He contributes £200,000 to the SIPP. As a higher-rate taxpayer, he receives 40% tax relief: the net cost of the £200,000 contribution after all relief is claimed through self-assessment is £120,000. The SIPP fund after contribution: £200,000.

Step 2: Applying the borrowing cap. With £200,000 in the fund, the SIPP can borrow up to £100,000 (50% of £200,000). Total buying power: £300,000, which falls short of the £400,000 purchase price. Marcus also holds £200,000 in an existing pension arrangement. He transfers those savings into the SIPP. Total SIPP assets: £400,000. Borrowing cap: £200,000 (50% of £400,000). Total buying power: £600,000, sufficient for the £400,000 purchase with headroom.

Step 3: The purchase mechanics. The SIPP trustees, acting as buyer, contract to purchase the commercial office freehold for £400,000. Standard commercial conveyancing applies. SDLT is payable at non-residential rates: 0% on the first £150,000, 2% on £150,001 to £250,000, and 5% above £250,000. For a £400,000 commercial purchase: (£0) + (£100,000 x 2%) + (£150,000 x 5%) = £2,000 + £7,500 = £9,500 SDLT. If the seller has opted to tax the property for VAT purposes, the buyer (the SIPP) must also account for 20% VAT on the purchase price, recoverable if the SIPP is VAT-registered and makes taxable supplies from the property. The SIPP (not Marcus personally) holds the legal and beneficial title. Not all SIPP providers permit direct commercial property holdings. Those that do charge property-specific fees on top of standard SIPP charges: typically a property acquisition fee (often £500 to £1,500 plus VAT), an ongoing annual property administration fee (often £200 to £600 plus VAT per property), and a disposal fee on eventual sale. These costs should be factored into the return calculation at the outset.

Step 4: The rent flow. Marcus's practice pays arm's-length market rent to the SIPP: £18,000 per year, established by an independent rental valuation. The rent payment is:

• Fully tax-deductible for Marcus's practice (reducing taxable profit by £18,000 a year, saving £7,200 at a 40% marginal rate).
• Tax-free inside the SIPP (registered pension scheme; no income tax on rental income within the scheme).

Net annual benefit from the rent flow alone: £7,200 in tax savings on the deduction, plus the compounding of £18,000 a year in a tax-free wrapper. HMRC's requirement is that the rent is genuine market rent. Below-market rent is an indirect benefit to Marcus as scheme member and would trigger unauthorised payment charges under s.208. An independent valuation at the outset, and periodic updates aligned with the lease rent review cycle, is essential.

Step 5: CGT-free disposal. When the SIPP eventually sells the commercial property, any gain is exempt from CGT under TCGA 1992 s.271(1). If the property increases in value from £400,000 to £800,000, the full £400,000 gain is sheltered inside the SIPP. Outside a pension wrapper, a higher-rate taxpayer selling a commercial property would face up to 24% CGT on the gain.

Step 6: What would happen if the property were residential? If Marcus attempted to buy a residential buy-to-let flat through the SIPP instead of a commercial office, Schedule 29A paragraph 6 would classify the acquisition as taxable property. The result: an s.208 unauthorised payment charge of 40% on Marcus personally on the £400,000 value (£160,000), plus an s.209 scheme sanction charge of 15% on the scheme administrator (£60,000), a combined immediate charge of £220,000 on top of the £400,000 purchase price. This is commercially unviable. The residential prohibition is not a structural choice: it is an absolute stop.

Renting back to your own business: the arm's-length rule

One of the most common uses of a SIPP commercial property purchase is the rent-back structure: the SIPP buys the premises and the member's business rents them back. The tax arithmetic works because:

• The rent is a deductible business expense (income tax or corporation tax saving at the business's marginal rate).
• The rental income accumulates inside the SIPP tax-free.
• The business pays its occupancy costs in a way that builds pension wealth rather than enriching an unconnected landlord.

The central condition is that the rent must be at arm's-length market value. HMRC does not prohibit connected-party rent arrangements in a SIPP context, but it scrutinises them closely. Below-market rent constitutes an indirect benefit to the member and falls within the unauthorised payment rules in s.208. This means the shortfall (the amount by which actual rent falls below market rent) is treated as an unauthorised payment, triggering the 40% charge on the member plus the 15% scheme sanction charge on the administrator.

The practical steps to protect the arrangement:

• Commission an independent RICS-qualified valuation of the market rent at the outset.
• Include a rent review clause in the lease, typically on a 3-year cycle, with each reviewed rent confirmed by an independent valuation.
• Document the lease as a formal arm's-length commercial tenancy, not an informal arrangement.
• If the business's trading circumstances change materially (turnover falls, premises usage reduces), review and adjust the rent rather than deferring it informally.

A properly documented rent-back arrangement at market value is a permitted, common, and tax-efficient use of a SIPP commercial property. The risk is purely one of documentation and periodic maintenance of the market-rent standard.

Valuation events beyond rent reviews. Independent valuations are required not only at rent-review dates but also at the point of purchase, on any sale of the property, at retirement when benefits are crystallised (for PCLS calculation purposes), and on the member's death (for scheme accounts and LSDBA reporting). SIPP providers typically instruct a RICS-registered valuer for each of these events. Budget for a valuation cost each time the scheme accounts are struck if the property is the scheme's main asset.

Insurance. The SIPP trustee or provider (as legal owner of the property) is responsible for maintaining buildings insurance and public liability insurance on the commercial property. On a full repairing and insuring (FRI) lease, the tenant typically reimburses the insurance premium as a lease obligation, but the policy must be in the name of the scheme trustees. Confirm the insurance arrangements with the SIPP provider before exchange; some providers have preferred insurers or require sign-off on the policy terms.

SSAS employer loans: a separate tool

A SSAS (small self-administered scheme) has one additional tool that a SIPP does not: the ability to lend money to the sponsoring employer. Under FA 2004 Schedule 30 and SI 2006/206 Regulation 6, a SSAS can make an authorised employer loan to the sponsoring company subject to the following conditions:

• The loan must not exceed 50% of the scheme's net assets at the time of the loan.
• The term must not exceed five years.
• The loan must be secured by a first charge over assets of equal or greater value.
• The interest rate must be a commercial rate (typically at least 1% above the Bank of England base rate).

The employer loan sits alongside the commercial property holding, not instead of it. A SSAS with £500,000 in assets could in principle hold a commercial property purchased with SSAS funds and have a separate employer loan outstanding, provided each arrangement independently complies with its conditions. Breach of the employer loan conditions triggers unauthorised payment charges under ss.208-209 in the same way as a taxable property acquisition.

For business owners weighing SIPP against SSAS, the employer loan facility is often the determining factor: if the company has a short-term capital requirement (working capital, refurbishment costs, expansion), a SSAS can address both the commercial property objective and the company finance objective within the same structure.

Pooled contributions across SSAS members. A SSAS with multiple members (for example, several directors of the same company) can pool their pension savings to fund a single commercial property purchase that would be beyond any one member's individual buying power. Each member's share of the property is held in proportion to their contributions, and the income and eventual disposal proceeds are allocated accordingly. This pooling facility is not available in a SIPP, which is an individual arrangement. For a family business with two or three director-shareholders each holding pension savings of £150,000 to £200,000, a SSAS may enable the purchase of a commercial property worth £500,000 to £600,000 that no single member's SIPP could fund alone (even with maximum 50% borrowing applied to each individual pot).

In-specie contributions: transferring property you already own

A member who already owns a commercial property personally (or through a partnership) may be able to contribute it to a SIPP or SSAS as an in-specie contribution rather than purchasing it separately. The mechanics:

Annual allowance. The market value of the property at the date of contribution counts as a pension contribution for annual allowance purposes. The annual allowance for 2026/27 is £60,000. Unused annual allowance from the prior three tax years can be carried forward, giving a potential combined contribution of up to £240,000 in a single year (subject to available carry-forward headroom and the requirement that relevant UK earnings equal or exceed the gross contribution in the year of contribution). Where the property value exceeds available headroom, the transfer can be staggered. A £180,000 property against a £60,000 annual allowance takes a minimum of three tax years (three part-transfers of undivided shares), and each in-specie tranche is a disposal at market value for CGT in the year it moves, so the donor crystallises gains in stages. The conveyancing and valuation costs run three times over; take structural advice before choosing the stagger over a cash contribution.

Annual allowance vs lump-sum allowances. The annual allowance (£60,000) governs the contribution stage. The lump-sum allowances govern the benefit crystallisation stage. These are distinct limits:

Allowance	Amount	Statutory anchor	What it governs
Annual Allowance	£60,000	FA 2004 ss.227-228 (per annum)	Annual contributions (including in-specie)
Lump Sum Allowance (LSA)	£268,275	ITEPA 2003 s.637P (inserted FA 2024 Sch 9)	Tax-free cash (PCLS) at retirement
Lump Sum and Death Benefit Allowance (LSDBA)	£1,073,100	ITEPA 2003 s.637R (inserted FA 2024 Sch 9)	Death benefits (tax-free element)

The lifetime allowance was abolished by FA 2024. The LSA and LSDBA are the replacement framework. Neither the LSA nor the LSDBA constrains the size of the pension fund or the value of property held inside it: they cap only the amount that can be taken as a tax-free lump sum at retirement (LSA) or passed tax-free on death (LSDBA). A SIPP can hold a commercial property worth £5 million; the LSA simply determines how much of the fund can be taken as tax-free cash when benefits are crystallised.

CGT on in-specie transfer. The member is treated as disposing of the property at market value for CGT purposes at the point of contribution. Any gain on the disposal is a chargeable gain. However, once inside the SIPP, the property is exempt from CGT on any subsequent disposal by the scheme (TCGA 1992 s.271(1)). The in-specie contribution therefore accelerates a CGT event but eliminates future CGT on growth inside the wrapper.

Lump-sum allowances and what happens at retirement

When Marcus eventually crystallises his pension benefits, the commercial property remains inside the SIPP. He can take income from the rental income stream through drawdown without selling the property. If he wants a tax-free cash sum, he can take a pension commencement lump sum (PCLS) up to his remaining Lump Sum Allowance (£268,275 under ITEPA 2003 s.637P, inserted by FA 2024 Schedule 9). The PCLS is calculated against the total fund value, not specifically the property value.

The commercial property is part of the fund value for PCLS calculation purposes. Where the SIPP's primary asset is an illiquid commercial property, the SIPP trustee or provider may need to fund the PCLS from cash reserves built up from rental income, from borrowing against the property, or ultimately from a partial or full sale of the property. Liquidity planning is an important aspect of SIPP commercial property investment that is often underweighted at acquisition.

On death before crystallisation, the pension fund passes to nominated beneficiaries outside the member's estate. The tax-free element is capped by the LSDBA (£1,073,100 per ITEPA 2003 s.637R). The excess is taxed as income of the beneficiary. The commercial property inside the SIPP is part of the death benefit fund; beneficiaries may choose to retain it as a pension asset or have it sold and the proceeds distributed.

IHT planning with SIPP commercial property

Pension funds (including commercial property held inside a SIPP) are currently outside the member's estate for IHT. They belong to the pension trust, not the member, and are not property to which the transferor is beneficially entitled within the meaning of IHTA 1984 s.5. On death, the pension fund passes through the nomination mechanism to beneficiaries without forming part of the deceased's estate for IHT purposes.

This makes SIPP commercial property a double-advantage structure in the IHT context: the property sits outside the estate, and the rental income it generates compounds in a tax-free wrapper rather than in the member's personal taxable income (where it would form part of their estate as savings).

From 6 April 2027, unspent pension funds will be brought within the scope of IHT under IHTA 1984 as amended by FA 2026 (Royal Assent 18 March 2026). The change applies to deaths on or after 6 April 2027. Under the enacted framework (FA 2026 ss.66-71), the deceased's personal representatives carry the primary liability for reporting and paying the IHT due on pension interests as part of the estate IHT process; the scheme administrator has a benefit-withholding and payment mechanism (s.68) and becomes liable only where benefits are paid in breach of the withholding rules. Death in service benefits payable from a registered pension scheme are excluded from the new charge. For a SIPP holding illiquid commercial property, the valuation of that asset for IHT purposes at the date of death will require a formal RICS valuation: the personal representatives will need to commission this valuation and include it in the IHT account. The practical question for anyone structuring a SIPP commercial property acquisition with an IHT planning objective is whether the post-2027 position still generates a net benefit when the property is included in the estate, compared to holding the property personally or through a company.