South Africa Section 12BA Solar Tax Incentive and Depreciation Guide

Updated 8 September 2026 · By SolarNevs Research Desk, Dealer surveys + verified sources · 1 source · Method ↗

Expansive commercial rooftop solar panel array on an industrial warehouse facility in South Africa. — SolarNevs spec card

Key Takeaways

  • Parliament enacted the enhanced form of this deduction under section 12BA and the deduction under section 12U to encourage urgent renewable energy investment.
  • Qualifying businesses can claim an enhanced allowance: the deduction equals 125% of the cost incurred by the taxpayer for the acquisition of the asset if all the requirements are met.
  • The asset must have been brought into use for the first time on or after 1 March 2023 and before 1 March 2025.
  • The incentive applies to assets used in generating electricity from specified sources of renewable energy in South Africa for the purpose of trade.
  • Capital expenditures on foundations and mounting frames qualify alongside PV modules and inverters.

The Section 12BA Enhanced Capital Allowance

In response to South Africa's persistent electricity generation deficit and load shedding crisis, the Minister of Finance introduced an expanded tax incentive through section 12BA of the Income Tax Act. Official SARS documentation describes this provision as the enhanced form of this deduction under section 12BA and the deduction under section 12U.

The underlying policy purpose is explicitly acknowledged in the official SARS guide: section 12BA and section 12U were introduced with the intention of promoting the generation of renewable electricity across South African commerce and industry.

The core financial mechanism provides a supercharged upfront write-off: the deduction equals 125% of the cost incurred by the taxpayer for the acquisition of the asset if all the requirements are met. Unlike standard capital allowances that cap cumulative deductions at 100% of historical cost, Section 12BA delivers an extra 25% tax shield: the accelerated deduction under section 12BA(1) read with section 12B(2) is equal to 125%.

Qualifying Criteria and the Two-Year Window

To claim the 125% deduction, an enterprise must strictly satisfy statutory timing and operational benchmarks:

  • Statutory Commissioning Window: The asset was or is brought into use for the first time by that taxpayer on or after 1 March 2023 and before 1 March 2025. Systems brought into service outside this defined window fall back onto the baseline provisions of Section 12B.
  • Trade Requirement: The asset must be acquired and operated for the purpose of that taxpayer’s trade.
  • Location and Technology: Electricity must be generated from specified sources of renewable energy in South Africa, encompassing solar photovoltaic systems, wind turbines, and biomass technologies.
  • First-Time Utilization: The equipment must represent new capital investment: the asset must also be brought into use for the first time on or after 1 March 2023.

Scope of Qualifying Costs: Equipment and Supporting Structures

A major advantage of Section 12BA over standard plant allowances is its comprehensive coverage of auxiliary civil and structural mounting costs. The SARS guide confirms: in addition to the cost of acquisition of the asset, the expenditure actually incurred on the erection of a foundation or supporting structure designed for asset is potentially deductible.

This ensures that mounting frames, ballast blocks, roof racking rails, concrete inverter pads, and structural steel carports designed specifically to support the solar plant form part of the qualifying capital cost pool.

Unlike Section 12B—which restricts immediate 100% deductions to systems of 1MW or less—Section 12BA applies without generation caps: the full 125% of the cost of the asset may be deducted under section 12BA subject to general tax compliance. Corporate taxpayers claim this benefit upfront: Turbinator was able to claim 125% of the cost in the 2023 year of assessment, that is, the year in which the asset was first brought into commercial operation.

Frequently asked questions

What is the enhanced tax deduction percentage under Section 12BA?

Under Section 12BA, the deduction equals 125% of the cost incurred by the taxpayer for the acquisition of the asset if all the requirements are met.

What is the eligibility commissioning window for Section 12BA?

The asset must be brought into use for the first time by that taxpayer on or after 1 March 2023 and before 1 March 2025.

Are mounting structures and foundations deductible under Section 12BA?

Yes, in addition to the cost of acquisition of the asset, the expenditure actually incurred on the erection of a foundation or supporting structure designed for asset is potentially deductible.

Is there a capacity limit on solar installations claiming Section 12BA?

No generation capacity limit applies; the full 125% of the cost of the asset may be deducted under section 12BA subject to statutory requirements.

References

Related guides

More from inverter errors & fixes.