A Small Business Corporation is a company that meets a specific set of tests in the Income Tax Act and, as a result, pays tax on a sliding scale starting at 0% instead of the flat 27%. The saving builds to roughly R91,030 a year and then plateaus. Most companies that fail the test fail on one condition: a shareholder who holds shares in another company. It is not something SARS grants — you claim it on the return, and you must be able to prove it.
It is the single largest tax saving available to a small South African company, and it is routinely missed.
The rates
SBC rates for years of assessment ending 1 April 2026 to 31 March 2027:
| Taxable income | Tax |
|---|---|
| R0 – R99,000 | 0% |
| R99,001 – R365,000 | 7% of the amount above R99,000 |
| R365,001 – R550,000 | R18,620 + 21% of the amount above R365,000 |
| R550,001 and above | R57,470 + 27% of the amount above R550,000 |
Against the flat 27%:
| Taxable income | Standard 27% | As an SBC | Saving |
|---|---|---|---|
| R100,000 | R27,000 | R70 | R26,930 |
| R300,000 | R81,000 | R14,070 | R66,930 |
| R500,000 | R135,000 | R46,970 | R88,030 |
| R550,000 | R148,500 | R57,470 | R91,030 |
| R1,000,000 | R270,000 | R178,970 | R91,030 |
| R5,000,000 | R1,350,000 | R1,258,970 | R91,030 |
The saving maxes out at R91,030 and stays there, because everything above R550,000 is taxed at 27% either way. But R91,030 a year, recurring, is the difference between hiring someone and not.
The tests
All of these must be met, throughout the year of assessment.
1. All shareholders must be natural persons
Throughout the year. A company, a close corporation or a trust as shareholder ends it immediately.
This is why a holding company structure, or moving shares into a family trust, costs SBC status. See what is a holding company and does your SME need one.
2. No shareholder may hold shares in any other company
This is the one that disqualifies most companies, and it is the one nobody checks.
Subject to limited exceptions — listed shares, collective investment schemes, certain dormant companies and a few others — a shareholder who owns even a small stake in an unrelated company breaks it for everybody.
A worked scenario. Two partners run a profitable consultancy. One of them owns 10% of a friend's restaurant company from years ago and has forgotten about it. The consultancy is not an SBC, and has been paying 27% instead of the sliding scale. On R550,000 of profit that is R91,030 a year, for as long as it goes unnoticed.
Ask every shareholder, in writing, every year. It is a five-minute question with a five-figure answer.
3. Gross income must not exceed the threshold
Confirm the current figure for your year of assessment before relying on it — published guidance has not been consistent on whether the threshold is R20 million or R25 million, and it matters.
4. Not more than 20% of receipts from investment income and personal services combined
Investment income — interest, dividends, rental from immovable property, royalties.
Personal service — broadly, service in the fields of accounting, actuarial science, architecture, auditing, broadcasting, consulting, draughtsmanship, education, engineering, financial service broking, health, information technology, journalism, law, management, real estate broking, research, sport, surveying, translation, valuation or veterinary science, where a person holding a shareholding interest personally performs it.
The relief here matters: a company in one of those fields that employs three or more full-time employees who are not shareholders or connected to a shareholder, engaged full-time in the business, generally escapes the personal-service classification.
So a three-person consultancy with no employees is likely out. The same consultancy with three unconnected full-time staff is likely in.
5. Not a personal service provider
A separate and stricter classification with its own consequences. Where it applies, SBC status does not.
Where it goes wrong
Nobody checked. The most common failure. The company qualified all along and paid 27% for years because the question was never asked.
A shareholder's other shareholding. Forgotten, undisclosed, or acquired mid-year without anyone connecting it to the company's tax rate.
A trust or holding company introduced for estate planning or structuring, with the SBC cost never priced in.
An investor came in as a company rather than as an individual. A foreign or local individual shareholder preserves SBC status; a corporate shareholder ends it. That is worth raising during the raise. See can a foreign company or a minor hold shares in your company.
Claimed without qualifying. The opposite error, and the more dangerous one. SBC status is self-assessed on the return, and SARS can and does verify it. Getting it wrong means an additional assessment, understatement penalties and interest.
No evidence kept. You must be able to demonstrate you met every test for that year — shareholder declarations, the composition of income, employee numbers. Reconstructing that three years later during a verification is difficult.
What to do about it
1. Test it every year, as part of preparing the accounts. Conditions must be met throughout the year, and shareholdings change.
2. Get written shareholder declarations annually. Do they hold shares in any other company? Date it, file it. This is your evidence.
3. Check before you restructure. A trust, a holding company or a corporate investor each ends SBC status. Model the cost before signing, not after.
4. Watch the income mix where you are in a listed personal-service field, and count your unconnected full-time employees.
5. Compare against turnover tax if your turnover is under R2.3 million — for a high-margin business it can be cheaper still, though professional services are excluded.
6. Keep the file. Declarations, income analysis, employee records, per year.
Frequently asked questions
What is a Small Business Corporation in South Africa? A company meeting specific tests in the Income Tax Act, which as a result pays tax on a sliding scale starting at 0% rather than the flat 27% corporate rate. It is claimed on the return rather than granted by SARS.
What are the Small Business Corporation tax rates? For years of assessment ending 1 April 2026 to 31 March 2027: 0% on the first R99,000, 7% from R99,001 to R365,000, R18,620 plus 21% from R365,001 to R550,000, and R57,470 plus 27% above R550,000.
How much can SBC status save? The saving builds to roughly R91,030 a year and then plateaus, because income above R550,000 is taxed at 27% either way. At R300,000 of taxable income the saving is about R66,930.
What disqualifies a company from SBC status? Most commonly a shareholder who holds shares in another company, subject to limited exceptions. Also a shareholder that is not a natural person — a company, close corporation or trust — exceeding the gross income threshold, more than 20% of receipts from investment income and personal services combined, or being a personal service provider.
Does a trust shareholder end Small Business Corporation status? Yes. All shareholders must be natural persons throughout the year of assessment, and a trust is not a natural person.
Can a consultancy or professional practice be an SBC? It can, but the personal-service test is the obstacle. A company in a listed field where a shareholder personally performs the service generally fails, unless it employs three or more full-time employees who are not shareholders or connected to a shareholder.
Does a foreign shareholder end SBC status? A foreign individual is a natural person, so status can survive provided the other tests are met. A foreign company shareholder ends it.
How do I claim SBC status? It is self-assessed on the company's income tax return. You must be able to prove every test was met throughout the year, so keep written shareholder declarations, income analysis and employee records annually.
Ask the shareholder question every year
The most expensive SBC failures are not aggressive structures. They are a shareholder with 10% of something unrelated, that nobody thought to ask about.
Smartbook tests SBC qualification annually as part of preparing your financial statements, collects the shareholder declarations that evidence it, and flags before you restructure if the change will cost you the rate.
File your company tax return →
Last reviewed: 31 July 2026. Written by the Smartbook team — SAIPA and SAICA accredited, SARS registered tax practitioners. Rates shown are for years of assessment ending 1 April 2026 to 31 March 2027. The gross income threshold should be confirmed for your year of assessment — published guidance has differed between R20 million and R25 million. Small Business Corporation and personal service provider classification are technical — take advice on your circumstances.
Primary sources: SARS — Small Business Corporations · Income Tax Act 58 of 1962, section 12E · SARS — Tax Rates