South African Solar Tax Incentives

For qualifying business solar PV systems up to 1MW, Section 12B allows the full capital cost to be deducted in Year 1. At the current 27% corporate rate, that can make a meaningful difference to the payback period.

THE BOTTOM LINE

A Potential 27% Tax Saving on Qualifying Solar PV

South Africa's company tax rate is 27%. For qualifying PV systems up to 1MW, Section 12B can allow a full Year-1 deduction, reducing taxable income by the qualifying capital cost.

27%

Potential tax saving for qualifying business solar PV systems up to 1MW. The saving depends on taxable income, system eligibility, and the way your accountant applies Section 12B to your business.

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SECTION 12B EXPLAINED

How the Tax Incentive Works

What Is Section 12B?

Section 12B of the Income Tax Act (Act 58 of 1962) provides accelerated capital allowances for assets used to generate electricity from renewable sources. For photovoltaic solar energy systems not exceeding 1MW, the qualifying cost can be deducted in full in the year the system is brought into use.

The Current Section 12B Allowance

For PV systems up to 1MW, the current Section 12B allowance can be a 100% Year-1 deduction. Larger PV and renewable-energy projects should be confirmed with a tax advisor; the standard allowance can apply over three years at 50% / 30% / 20%.

Section 12BA, the temporary 125% enhanced deduction available for qualifying assets brought into use from 1 March 2023 to before 1 March 2025, has expired. Assets brought into use after 28 February 2025 fall back to the standard rules.

What Costs Are Included?

The cost of the solar PV system allowed for accelerated depreciation includes the full direct capital cost, including:

Design & engineering

Project planning

Solar PV panels

AC inverters

DC combiner boxes

Racking & mounting

Cables & wiring

Installation

Finance costs are excluded from the allowable depreciation.

Payment Structure

The accelerated depreciation allowance applies whether the solar PV system is installed by contractors, paid upfront in a single payment, or paid in multiple payments over an extended period via a credit sale agreement. This flexibility makes the incentive accessible regardless of your financing structure.

Example Savings

Illustrative example: 8kW Single Phase Hybrid Package at R161,000 (incl. VAT)

System Cost	R161,000
Exc. VAT	~R140,000
Tax Rate (Corporate)	27%
Tax Saving	~R37,800
Effective Net Cost	~R123,200

~R37,800

illustrative Year-1 tax saving for a qualifying under-1MW PV system

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*Figures are illustrative and assume the business has taxable income. Consult your tax advisor for advice specific to your business.

Expected ROI

Cash purchase	3-4 years
Financed system	4-5 years

ROI depends on your local municipality's kWh tariff billing rates. After payback, the system continues generating savings for 20+ years.

WHO QUALIFIES?

Eligible Properties & Businesses

Section 12B can apply to taxpaying businesses using qualifying solar PV in the course of trade. Common fits include:

Shopping Centres

High electricity consumers with large roof space and significant operational savings potential.

Business Premises

Offices, warehouses, and commercial properties can ask their tax advisor to confirm whether the PV system qualifies.

Farms

Agricultural operations benefit both from the tax incentive and energy independence in remote areas.

Small Manufacturing Plants

Reduce production overheads and protect operations from loadshedding disruptions.

Large Residential Properties

Properties with large roof space that are used in a business context may also qualify.

Qualifying Business Solar

Taxpaying businesses using qualifying solar PV in the course of trade can ask their tax advisor to confirm the allowance.

THE NUMBERS

Why the Numbers Work

27%

POTENTIAL YEAR-1 TAX SAVING

100%

YEAR-1 DEPRECIATION, PV UP TO 1MW

3-4yr

TYPICAL CASH ROI

25yr+

SYSTEM LIFESPAN

0

ELECTRICITY COST AFTER PAYBACK

IMPORTANT NOTE

Consult Your Tax Advisor

Section 12B is a real allowance with real value, but every business's tax position is different. Talk to your accountant or tax advisor to confirm how it applies to your specific circumstances and financial year. We can provide all the documentation you'll need to support the claim.

Documentation provided with every commercial install: itemised tax invoice, system specifications, Certificate of Compliance, and proof of commissioning date.