Section 12B Solar Deduction for Rental Property Owners

Section 12B is available to any taxpayer carrying on a trade. Letting commercial or residential property constitutes a trade for tax purposes. If you own the solar installation on a property you let for rental income, you can claim the deduction.\n\nThe key requirements are: you must own the solar equipment (not the tenant), the property must generate rental income (i.e., it's part of your trade), and the solar system must be new and unused.

Commercial rental properties (offices, retail, industrial) are straightforward — the landlord installs solar, claims Section 12B, and either includes electricity in the rental or reduces the tenant's energy costs to justify higher rent.\n\nResidential rental properties also qualify if held as a trade. A landlord with a portfolio of rental houses or a residential complex can install solar and claim Section 12B on each installation. The deduction applies against rental income.

Only the owner of the solar asset can claim Section 12B. If the landlord purchases and installs the system, the landlord claims. If a tenant installs their own system on a leased property, the tenant claims.\n\nIn practice, landlord-installed solar is most common for commercial properties. The landlord recovers the cost through higher rental rates, reduced vacancy rates, or Green Building certification premiums.

Properties with solar installations command rental premiums of 5-10% in the South African market. Tenants value reduced electricity costs and load-shedding resilience.\n\nSolar also reduces vacancy risk — properties with reliable power are more attractive to prospective tenants. Green Star or Energy Performance Certificate ratings, boosted by solar, further enhance marketability.\n\nThe combination of Section 12B tax savings, rental premium, and property value appreciation makes solar one of the best capital improvements a landlord can make.