
Let there be light. And possibly a deduction too.
Rising electricity costs have turned solar from a “nice to have” into a serious business decision.
For many businesses, a solar system is not only about sustainability. It is also about long-term energy bill savings, more control over operating costs, and less disruption when power supply becomes unreliable.
That already makes the investment attractive.
But where the system is used in the production of income, there may also be a tax angle worth understanding.
The important part
If a solar system is used for the purposes of trade, the tax treatment may be more favourable than many people realise.
SARS’s guide on assets used in the generation of electricity says a deduction may be claimed under section 12B if the relevant requirements are met, including that the asset is owned or acquired by the taxpayer, brought into use for the first time by that taxpayer for the purposes of trade, and used in generating electricity from a qualifying renewable source.
For qualifying photovoltaic solar systems of not more than 1 megawatt, the cost may generally be claimed in full in the year the system is brought into use. Where the photovoltaic solar system exceeds 1 megawatt, the deduction is generally spread over three years on a 50:30:20 basis.
That means the solar decision may have three layers of value:
- long-term energy savings
- sustainability and energy resilience
- a possible tax deduction where the legal requirements are met
Why this matters
Many business owners think of solar as a pure infrastructure cost.
It is not always just that.
Used properly, it can form part of a broader business strategy: reducing operating pressure, improving energy certainty, and supporting the income-producing side of the business at the same time.
The real takeaway
A solar system used in the production of income is not only an energy decision.
It can also be a tax planning decision.
The numbers, structure, and tax treatment should be reviewed properly before the investment is made, especially where the system is being installed for business use.
Thinking about installing a solar system for business use? Speak to us before you commit, so the tax treatment is considered as carefully as the energy savings.
Disclaimer: This article is for general information only and does not constitute tax, legal, accounting, or financial advice. Whether a solar system qualifies for a deduction depends on the specific facts, the nature of the asset, how it is used, and whether the relevant requirements of the Income Tax Act are met.

