MODULE 5 · SMALL BUSINESS
Corporate Tax Comparison
COMING SOONSouth African companies can pay corporate tax under one of three mutually exclusive regimes: the standard flat rate of 27%, the SBC progressive rate under Section 12E of the Income Tax Act (starting at 0%), or turnover tax for micro-businesses below R1,000,000 turnover. The difference between regimes at R500,000 taxable income is R82,330 per year. This tool computes all three in one call and identifies which regime applies to your company.
27%
Standard corporate rate
Flat — all taxable income
0%
SBC rate starts at
s12E — first R99,000 taxable
R90,730
Max SBC annual saving
vs 27% flat · above R550,000
R82,330
SBC saving at R500,000
Most common SME income level
R1,000,000
Turnover tax ceiling
Gross turnover — micro only
3
Three regimes available
Mutually exclusive — one per year
THE THREE REGIMES
Why the default choice costs most South African companies money
Most South African companies pay corporate income tax at the standard flat rate of 27% — not because they have been told that is their best option, but because no one has modelled the alternatives. The three available regimes are mutually exclusive. Only one applies to any given company in any given year of assessment. But the difference between them is not marginal. At R500,000 in taxable income, the gap between the standard rate and SBC rates is R82,330 per year — money that either stays with the business or goes to SARS, depending entirely on whether anyone ran the comparison.
The standard corporate income tax rate is 27% applied to all taxable income with no exemptions, no brackets, and no concessions for income level. It is the unconditional default — every company pays this rate unless it has actively qualified for and claimed an alternative. It requires no application, no annual test, and no compliance beyond the standard IT14 return. Its simplicity is its only advantage.
The Small Business Corporation regime under Section 12E of the Income Tax Act 58/1962 applies a progressive four-band rate table that starts at 0% on the first R99,000 of taxable income. The rate reaches 27% only above R550,000 — meaning the standard rate and the SBC rate converge at the top bracket. The entire SBC tax saving is realised on the first R550,000 of taxable income, reaching a maximum of R90,730 per year and never growing further. SBC status also grants accelerated depreciation allowances under Section 12E(1A) and (1B) that compound the cash flow benefit in the capital-intensive early years of a business. The price of entry is passing five statutory qualifying conditions — tested annually.
The turnover tax regime is available only to micro-businesses with qualifying annual turnover below R1,000,000. It is the most radical simplification of the three — a single rate applied to gross revenue before any deductions, replacing income tax, provisional tax, and capital gains tax entirely. At its lowest, the first R600,000 of turnover attracts zero tax. The appeal is administrative simplicity. The risk is that it is applied to revenue, not profit — in a year with high costs and low margins, turnover tax can produce a higher liability than SBC rates on the same financial performance.
The purpose of this comparison tool is to make the three-regime analysis automatic — a single MCP call returns the tax liability under each applicable regime for a given company, with the saving quantified in Rands, so that the conversation between an accountant and a business owner about tax structure is grounded in specific numbers rather than general principles.
Corporate Tax Comparison Tool
COMING SOONThe interactive tool will accept taxable income, gross turnover, and SBC qualification status — and return all three regime liabilities simultaneously, with the annual saving under each alternative versus the default 27% rate, the effective rate under each regime, and a flag if qualification for SBC or turnover tax has not been confirmed.
Be notified when this tool launches → wandile@centurionai.co.za
THREE REGIMES AT A GLANCE
Budget 2026/27 · Mutually exclusive
Standard Rate
27% flat
Basis: Taxable income
Qualifier: All companies — default
SBC (Section 12E)
0%–27% progressive
Basis: Taxable income
Qualifier: 5 conditions — annual test
Turnover Tax
0%–3% progressive
Basis: Gross turnover
Qualifier: Turnover below R1,000,000
SBC TABLE 2026/27
s12E Income Tax Act 58/1962
R1 – R99,000
0%
R99,001 – R365,000
7% above R99k
R365,001 – R550,000
R18,620 + 21%
R550,001 +
R57,470 + 27%
TURNOVER TAX 2026/27
Micro-business · below R1,000,000
R1 – R600,000
0%
R600,001 – R950,000
1% above R600k
R950,001 – R1,400,000
R3,500 + 2%
R1,400,001 +
R12,500 + 3%
Applied to gross turnover — not taxable income
THE COMPARISON TABLE
All three regimes, every income level — exact 2026/27 figures
Tax at each taxable income level under the standard 27% rate and SBC progressive rates, side-by-side, with the annual Rand saving clearly shown. Turnover tax figures require gross turnover input and are shown separately below — because turnover tax is applied to revenue, not profit.
| Taxable Income | Standard 27% | Standard Eff. Rate | SBC Tax | SBC Eff. Rate | Annual Saving |
|---|---|---|---|---|---|
| R50,000 | R13,500 | 27.0% | R0 | 0.0% | R13,500 |
| R99,000 | R26,730 | 27.0% | R0 | 0.0% | R26,730 |
| R150,000 | R40,500 | 27.0% | R3,570 | 2.4% | R36,930 |
| R200,000 | R54,000 | 27.0% | R7,070 | 3.5% | R46,930 |
| R300,000 | R81,000 | 27.0% | R14,070 | 4.7% | R66,930 |
| R365,000 | R98,550 | 27.0% | R18,620 | 5.1% | R79,930 |
| R500,000 | R135,000 | 27.0% | R52,670 | 10.5% | R82,330 |
| R550,000 | R148,500 | 27.0% | R57,470 | 10.5% | R91,030 |
| R600,000 | R162,000 | 27.0% | R71,270 | 11.9% | R90,730 |
| R800,000 | R216,000 | 27.0% | R125,270 | 15.7% | R90,730 |
| R1,000,000 | R270,000 | 27.0% | R179,270 | 17.9% | R90,730 |
| R1,500,000 | R405,000 | 27.0% | R314,270 | 20.9% | R90,730 |
| R2,000,000 | R540,000 | 27.0% | R449,270 | 22.5% | R90,730 |
| Source: SARS Budget 2026/27 Tax Pocket Guide · Income Tax Act 58/1962 s12E · Calculated by CenturionAI · Highlighted rows = most common SME income levels | |||||
The plateau: why the saving stops growing at R90,730
Both the SBC rate and the standard rate apply 27% on income above R550,000. The accumulated saving on the first R550,000 is locked in at R90,730 and never increases — no matter how large taxable income grows. At R2,000,000 taxable income, the effective SBC rate is 22.5% versus 27% standard. SBC status remains worth maintaining at any income level, as long as qualification conditions are met.
Turnover tax comparison — at matching gross turnover levels
Turnover tax is applied to gross revenue, not taxable income. The comparison below shows a realistic scenario for each turnover level — assuming a 25% net profit margin (a common small business benchmark) to derive the estimated taxable income. The comparison shows where each regime produces a lower liability for the same underlying business performance.
| Gross Turnover | Est. Taxable Inc (25%) | Turnover Tax | SBC Tax | Standard 27% | Lowest Regime |
|---|---|---|---|---|---|
| R400,000 | R100,000 | R0 | R70 | R27,000 | Turnover tax |
| R600,000 | R150,000 | R0 | R3,570 | R40,500 | Turnover tax |
| R700,000 | R175,000 | R1,000 | R5,320 | R47,250 | Turnover tax |
| R800,000 | R200,000 | R2,000 | R7,070 | R54,000 | Turnover tax |
| R900,000 | R225,000 | R3,000 | R8,820 | R60,750 | Turnover tax |
| R950,000 | R237,500 | R3,500 | R9,695 | R64,125 | SBC (narrow) |
| Assumption: 25% net profit margin for illustrative comparison. Actual taxable income varies — compute with your real figures. Turnover tax unavailable above R1,000,000 gross turnover. | |||||
FIVE BUSINESS PROFILES — WHICH REGIME WINS
Real South African companies, real tax decisions
Each scenario shows the three-regime calculation from a single MCP tool call and the practical implication for that business. Find the profile closest to yours to understand what the comparison looks like in practice.
Early-stage IT consultancy — SBC zero rate applies
Taxable income: R80,000 · Gross turnover: R650,000 · SBC: qualifies
A recently incorporated IT consulting company. Two natural person shareholders. No other trading interests. The company employs three unconnected full-time developers — clearing the personal service provider hurdle. Taxable income of R80,000 after salaries, rent, and equipment. Gross turnover R650,000.
Under SBC rates the company pays R0 — zero corporate tax on R80,000 taxable income. Under the standard rate it would pay R21,600. Turnover tax on R650,000 is R500 (1% of the R50,000 above R600,000). The saving versus the standard rate is R21,600 per year — an effective corporate tax rate of 0%.
Why SBC wins here
With taxable income below R99,000, SBC rates produce zero tax — an outcome not possible under the standard rate or turnover tax at R650,000 turnover (which would cost R500). In early-stage years, SBC qualification combined with accelerated depreciation on any equipment purchased can reduce taxable income even further.
Manufacturing SME — SBC plus accelerated depreciation
Taxable income: R500,000 · Gross turnover: R4,200,000 · New machinery: R800,000
A plastics component manufacturer. Qualifies under all five SBC conditions. In the current year, the company purchased R800,000 of manufacturing machinery. Under Section 12E(1A), that R800,000 is deductible 100% in year one — eliminating R800,000 from taxable income. Without the SBC accelerated allowance, the machinery would be depreciated over six years at R133,333 per year. The taxable income after the Section 12E deduction: R500,000.
SBC tax on R500,000 is R52,670. Standard tax would be R135,000 — a saving of R82,330 on rates alone. But the more significant benefit in this scenario is the depreciation: without SBC status, taxable income would have been R1,300,000 (R500,000 plus R800,000 not yet deductible), producing standard tax of R351,000. The combined rate-and-depreciation saving in year one is R298,330.
The depreciation multiplier effect
For capital-intensive businesses, the SBC accelerated depreciation benefit dwarfs the rate saving in early years. A business that takes SBC qualification seriously during its growth phase — and times capital expenditure with the year of assessment in mind — can eliminate taxable income in its most cash-constrained years.
High-margin freelance design studio — where turnover tax wins
Taxable income: R420,000 · Gross turnover: R480,000 · Profit margin: 87.5%
A sole-director graphic design studio. Minimal business expenses — no employees, home office, software subscriptions. Annual gross turnover of R480,000. Taxable income after the small deductible costs is R420,000 — an 87.5% profit margin. The company qualifies for both SBC rates and turnover tax.
SBC tax on R420,000 taxable income is R29,120. Turnover tax on R480,000 gross turnover is R0— below the R600,000 zero-rate threshold. In this scenario, turnover tax produces zero tax versus R29,120 under SBC rates. The director should elect turnover tax — but must do so before the financial year starts, as the election is irrevocable mid-year.
When turnover tax wins: the high-margin rule
Turnover tax wins when the business has a very high profit margin — meaning taxable income is a large fraction of gross turnover — AND turnover is below or near the R600,000 zero-rate threshold. For this studio, paying 0% on R480,000 turnover is structurally better than paying SBC rates on R420,000 taxable income. This analysis reverses if turnover grows above R600,000 or if deductible costs increase.
Sole-director law firm — personal service disqualifier, paying the full 27%
Taxable income: R750,000 · Gross turnover: R2,800,000 · SBC: does NOT qualify
A sole-director legal practice. The director is the only attorney. The company employs two administrative staff — a secretary and a bookkeeper — both connected persons (family members). Legal services are a personal service category under Section 12E(4)(d). No unconnected full-time employees perform legal work. The company fails Condition 5 and does not qualify for SBC rates.
The company pays the standard rate of 27% on R750,000 taxable income — R202,500 per year. Under SBC rates it would have paid R125,270 — the company is paying R77,230 more than necessary each year because of two administrative employees who are connected persons and one unfilled attorney position.
The structural fix — one hire changes everything
Hiring one unconnected full-time attorney or candidate attorney at an annual salary of R180,000 unlocks SBC qualification. The tax saving of R77,230 per year (growing as taxable income grows) exceeds the marginal payroll cost in year two, after the salary reduces taxable income and generates fee revenue. The three-regime comparison makes this conversation concrete and immediate.
Well-established retail supplier — SBC still worth it above R550,000
Taxable income: R1,200,000 · Gross turnover: R9,500,000 · SBC: qualifies
A retail supply company with nine years of operating history. All SBC conditions met annually. Taxable income has grown to R1,200,000 — well above the R550,000 bracket ceiling. The owner asks: "Is SBC still worth maintaining at this income level? We pay 27% above R550,000 anyway."
SBC tax on R1,200,000 is R233,270. Standard rate tax is R324,000. The saving is R90,730 per year — the plateau figure that never reduces once taxable income is above R550,000. The SBC effective rate at R1,200,000 is 19.4% versus the standard 27%. Yes — SBC is worth maintaining at every income level above R550,000, because the R90,730 annual saving is permanent and unconditional once the plateau is reached.
The plateau is not a ceiling on value
Many business owners assume SBC becomes irrelevant above R550,000 because the marginal rate converges with the standard rate. It does not become irrelevant — the saving stays at R90,730 and the effective rate stays below 27% at every income level. The plateau is a ceiling on the growth of the saving, not on the saving itself.
HOW TO CHOOSE YOUR REGIME
The three questions that determine which regime your company should be on
The regime comparison is only useful if it leads to a decision. These three questions produce a clear recommendation for most South African companies — before engaging a tax practitioner to implement the change.
Question 1
Does your company pass all five SBC conditions?
Run the SBC Qualification Checker first. If all five conditions pass — entity type, natural person shareholders, gross income below R20M, investment income below 20%, and the personal service provider test — SBC rates are available. If any condition fails, the standard 27% rate applies regardless of income level. Most small companies that have never been formally tested will discover a disqualifying condition they were unaware of.
Practical next step
Run the SBC Qualification Checker before this comparison tool.
Question 2
Is your annual gross turnover below R1,000,000?
If yes, turnover tax is available as an option. Compare the turnover tax liability at your actual gross turnover against the SBC tax at your actual taxable income. The winning regime depends on your profit margin. High-margin businesses with low deductible costs often find turnover tax superior. Low-margin businesses with significant costs almost always do better under SBC rates. The calculation requires both gross turnover and estimated taxable income.
Practical next step
Calculate both and compare — they will often be surprisingly close.
Question 3
Are you planning significant capital expenditure?
If SBC rates apply and you are purchasing manufacturing plant, machinery, or other business assets, the Section 12E(1A) accelerated depreciation allowance should be included in the analysis. A R500,000 machinery purchase deductible 100% in year one reduces taxable income by R500,000 — eliminating up to R135,000 in tax under SBC rates in that year. This benefit is not captured in the rate comparison alone and must be modelled separately.
Practical next step
Include the depreciation impact in the first-year comparison.
WHAT PRACTITIONERS GET WRONG
Four corporate tax regime mistakes that cost South African companies money every year
Defaulting to the standard 27% rate without ever testing SBC
Most South African companies have never formally tested whether they qualify for SBC rates. The standard rate is the default — it applies automatically without any action from the company or its accountant. For every company that qualifies under Section 12E and is unknowingly paying 27%, the cost is between R46,930 and R90,730 per year in avoidable tax. The five-condition test takes minutes to run and should be part of every company's annual tax compliance process.
s12E ITA — run qualification test annuallyElecting turnover tax without modelling the actual comparison
Turnover tax's zero-rate band on the first R600,000 of revenue makes it look attractive. But turnover tax is levied on gross revenue before deductions. A business with R950,000 in turnover and R700,000 in deductible costs has taxable income of R250,000. Under SBC rates, that taxable income produces R9,820 in tax. Under turnover tax, R950,000 gross turnover produces R3,500 — appearing cheaper until the deductions are large enough to flip the comparison. The break-even analysis must use actual company financials, not benchmarks.
Turnover tax: SARS Budget 2026/27 Pocket GuideNot accounting for the SBC accelerated depreciation in the comparison
The three-regime comparison most accountants present shows only the rate differential — SBC rate vs standard rate vs turnover tax. It does not capture the Section 12E(1A) accelerated depreciation benefit, which is an entirely separate and additional advantage of SBC status. For a business purchasing R1,000,000 in manufacturing equipment in year one, the accelerated deduction reduces taxable income by R1,000,000 in that year — saving R270,000 in tax at the standard rate. This benefit does not exist under the standard rate or turnover tax.
s12E(1A) and (1B) — accelerated allowancesAssuming the optimal regime stays the same every year
A company that qualifies for SBC rates this year may not qualify next year. A business whose turnover grows above R1,000,000 loses turnover tax eligibility mid-growth. A company that acquires machinery loses the accelerated depreciation benefit in subsequent years once the asset is fully written off. The optimal regime should be re-evaluated at the start of every financial year against projected income, projected turnover, and the current year's planned capital expenditure — not simply carried forward from the prior year's tax return.
s12E — annual qualification test requiredFREQUENTLY ASKED QUESTIONS
Corporate tax regime questions — answered precisely
What is the corporate tax rate in South Africa in 2026?
The standard corporate income tax rate in South Africa for the 2026/27 year of assessment is 27% — a flat rate applied to all taxable income. This rate applies to all companies that do not qualify for an alternative regime. Companies that qualify as a Small Business Corporation under Section 12E of the Income Tax Act 58/1962 may pay a lower progressive rate starting at 0% on the first R99,000 of taxable income. Micro-businesses with turnover below R1,000,000 may elect to pay turnover tax — applied to gross revenue rather than taxable income. The three regimes are mutually exclusive.
What are the three corporate tax regimes in South Africa?
South African companies face three possible corporate tax regimes. The standard rate is 27% — a flat rate applied to all taxable income, the unconditional default. The SBC regime under Section 12E applies a progressive table: 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. Turnover tax is available only to micro-businesses below R1,000,000 turnover — applied to gross revenue and replacing income tax, provisional tax, and capital gains tax. The three regimes are mutually exclusive.
How much can an SBC save compared to the standard 27% corporate rate?
The maximum annual tax saving from SBC status under the 2026/27 tax tables is R90,730. This saving is achieved at any taxable income of R550,000 or above. At R200,000 taxable income the saving is R46,930. At R300,000 it is R66,930. At R500,000 it is R82,330. SBC entities also benefit from accelerated depreciation under Section 12E(1A) — manufacturing assets can be written off 100% in year one. This additional benefit compounds the cash flow advantage significantly in the capital-intensive early years of a business.
Who qualifies for the SBC progressive tax rate in South Africa?
A company qualifies for SBC rates under Section 12E of the Income Tax Act if it meets all five conditions for the full year of assessment: it must be a private company, close corporation, personal liability company, or co-operative; all shareholders must be natural persons; gross income must be below R20,000,000; investment income must be below 20% of total receipts; and it must not be a personal service provider, or must employ at least three unconnected full-time employees in the core business activity. All five must pass. Failure of any single condition results in the standard 27% rate applying for the full year.
What is turnover tax and who qualifies in South Africa?
Turnover tax is a simplified tax regime for micro-businesses with qualifying annual turnover below R1,000,000. It is applied to gross revenue — before any deductions — and replaces income tax, provisional tax, and capital gains tax. The turnover tax table for 2026/27 is: 0% on the first R600,000; 1% above R600,000 to R950,000; R3,500 plus 2% above R950,000 to R1,400,000; and R12,500 plus 3% above R1,400,000. It is an elective regime — the entity must register with SARS. It cannot be combined with SBC rates or the standard corporate rate in the same year of assessment.
Is turnover tax better than SBC tax for a small company?
It depends on the ratio of taxable income to gross turnover. Turnover tax is applied to gross revenue; SBC tax is applied to taxable income after all deductible expenses. For a business with a low profit margin — high cost of goods, significant salaries, or large rent — taxable income may be a small fraction of turnover, making SBC rates produce a lower liability. For a high-margin business with few deductible expenses, turnover tax can produce a lower liability. The break-even point depends on the specific numbers — a side-by-side comparison with actual financials is necessary before electing a regime.
Can a company change its tax regime every year in South Africa?
SBC qualification is re-assessed every year — there is no election required; it applies automatically if qualifying conditions are met. Turnover tax is an elective regime — once elected for a year, it cannot be changed mid-year. A company that elects turnover tax and subsequently finds SBC rates would have produced a lower liability is locked in for that year of assessment. Planning should occur before the start of each financial year, not after the year closes.
Does SBC tax apply to dividends paid by the company?
SBC tax applies to the company's taxable income — the profit earned before distributions. When the company distributes after-tax profits as dividends to shareholder-directors, those dividends are subject to dividends tax at 20% in the hands of the recipient. The combination of SBC tax at the company level and dividends tax on distributions produces a lower total tax burden than standard corporate tax plus dividends tax — because the SBC rate on the first R550,000 is significantly below 27%. Shareholder-directors may also draw a salary, deductible at company level and taxed as personal income.
RELATED TOOLS
SBC Qualification Checker
COMING SOONRun this before the corporate tax comparison. SBC rates only apply if all five Section 12E conditions pass — confirmed annually.
Income Tax Act s12E · IN9 Issue 7
SBC Tax Calculator
COMING SOONDetailed SBC tax computation with bracket breakdown, effective rate, turnover tax comparison, and provisional tax obligations.
Income Tax Act s12E · Budget 2026/27
Personal Income Tax Calculator
Compare the company tax position to the shareholder drawing a salary — the salary is deductible in the company and taxed personally.
Income Tax Act 58/1962
Try calculator →Wandile Lokwe
FAIS Key Individual · CenturionAI (Pty) Ltd · Centurion, Gauteng
20 years in South African financial services. All three-regime tax figures on this page are sourced from the SARS Budget 2026/27 Tax Pocket Guide and verified against the Income Tax Act 58 of 1962 (s12E) and SARS official turnover tax guidance. The comparison tables are recalculated after every February Budget. Accelerated depreciation figures are verified against Section 12E(1A) and (1B) of the Income Tax Act.
wandile@centurionai.co.za · 081 344 8722
Corporate tax comparisons are calculated using the 2026/27 SARS tax tables under the Income Tax Act 58 of 1962. SBC rates under Section 12E only apply if the company qualifies — run the SBC Qualification Checker to confirm eligibility before adopting SBC tax treatment on the company's IT14 return. Turnover tax is an elective regime — the entity must register with SARS and the election is irrevocable for the elected year of assessment. The three regimes are mutually exclusive. Consult a registered tax practitioner before changing the entity's tax regime or relying on the comparison figures for tax planning purposes.