What is a Small Business Corporation (SBC) and how is it taxed?

A Small Business Corporation (SBC) is a tax designation granted by SARS to qualifying private companies. Instead of paying the standard flat corporate tax rate, an SBC is taxed on a highly favourable sliding scale.

For the 2026/27 tax year, this scale allows an SBC to pay 0% tax on its first R99,000 of profit, providing significant cash-flow relief to growing businesses.

The standard rate vs the SBC sliding scale

A standard Private Company (Pty Ltd) pays a flat 27% corporate tax rate on all its taxable income from the very first Rand.

Section 12E of the Income Tax Act provides an exception for an SBC. Instead of the flat rate, an SBC is taxed on progressive brackets, similar to how individuals are taxed.

For the 2026/27 tax year (applying to financial years ending between April 2026 and March 2027), the SBC brackets are:

R0 to R99,000: 0% tax
R99,001 to R365,000: 7% of the amount above R99,000
R365,001 to R550,000: R18,620 + 21% of the amount above R365,000
R550,001 and above: R57,470 + 27% of the amount above R550,000

The strict qualification rules

SARS does not grant SBC status automatically. A business is required to meet several strict criteria throughout the tax year to qualify:

Revenue limit: the annual turnover (gross income) cannot exceed R20 million.
Ownership: shareholders are restricted to being natural persons (individuals). If a trust or another company holds shares in the business, it is disqualified.
No other companies: the owners cannot hold shares in any other private companies, with a few exceptions like listed shares or completely inactive dormant companies.
Income types: not more than 20% of the total income can come from "investment income" (like interest or dividends) and "personal service" (like consulting or accounting, unless the business employs at least three full-time, unconnected staff members).
Not a PSP: the business cannot be classified as a Personal Service Provider.

The mathematical advantage

To see the financial impact, consider a company that generates exactly R400,000 in taxable profit.

If it is taxed at the standard 27% rate, the tax bill is R108,000.

If it qualifies as an SBC, the maths uses the third bracket:

The base amount is R18,620.
It pays 21% on the R35,000 that exceeds the R365,000 threshold, which is R7,350.
The total tax bill is R25,970.

The SBC status saves the business R82,030 in cash, which remains in the company to fund operations. As profit climbs above R550,000, the marginal rate hits 27%, meaning the tax relief caps out, but the initial savings are locked in.

The bonus benefit: accelerated depreciation

Beyond the tax brackets, section 12E offers a second major benefit: accelerated depreciation on business assets.

When a standard company buys expensive equipment, it typically deducts the cost from its taxable income slowly over five or six years. An SBC is permitted to write these costs off much faster.

Manufacturing equipment can be written off 100% in the year it is bought.
Non-manufacturing assets (like computers, office furniture, or delivery vehicles) can be written off in a 50/30/20 split: 50% of the cost in year one, 30% in year two, and 20% in year three.

This faster write-off reduces the company’s taxable income immediately, further lowering the tax bill in the critical early years of buying equipment.

Terms used on this page

taxable income: The income tax is calculated on, after allowed deductions. For most salaried people it is roughly gross salary minus retirement contributions.
gross income: Income before tax and deductions come off — the number on the offer letter, not the amount that lands in the bank.
personal service provider: A company SARS treats as a disguised employee, because the work is really done personally by a connected individual. It is taxed more harshly and cannot claim SBC benefits.
marginal rate: The tax rate on your next rand of income — the bracket the top slice of your income falls into.
depreciation: The process of an asset losing its monetary value over time due to wear and tear, age, or becoming outdated.

Sources

Reviewed July 2026

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