South Africa Profit Projection Calculator
Project your business profits over time with growth rates and estimate your South African tax liability.
| Month | Revenue | Costs | Profit | Cumulative |
|---|---|---|---|---|
| 1 | R 300 000,00 | R 200 000,00 | R 100 000,00 | R 100 000,00 |
| 2 | R 309 000,00 | R 202 000,00 | R 107 000,00 | R 207 000,00 |
| 3 | R 318 270,00 | R 204 020,00 | R 114 250,00 | R 321 250,00 |
| 4 | R 327 818,10 | R 206 060,20 | R 121 757,90 | R 443 007,90 |
| 5 | R 337 652,64 | R 208 120,80 | R 129 531,84 | R 572 539,74 |
| 6 | R 347 782,22 | R 210 202,01 | R 137 580,21 | R 710 119,95 |
| 7 | R 358 215,69 | R 212 304,03 | R 145 911,66 | R 856 031,61 |
| 8 | R 368 962,16 | R 214 427,07 | R 154 535,09 | R 1 010 566,70 |
| 9 | R 380 031,02 | R 216 571,34 | R 163 459,68 | R 1 174 026,38 |
| 10 | R 391 431,96 | R 218 737,05 | R 172 694,91 | R 1 346 721,29 |
| 11 | R 403 174,91 | R 220 924,43 | R 182 250,48 | R 1 528 971,77 |
| 12 | R 415 270,16 | R 223 133,67 | R 192 136,49 | R 1 721 108,26 |
Growth projections are based on compound monthly growth rates. A 3% monthly growth rate compounds to approximately 43% annual growth.
The tax estimate is based on current SARS income tax brackets for individuals. Company tax would be a flat 27%.
Factor in seasonality: many South African businesses see dips during December/January and mid-year.
Use conservative estimates for revenue growth and generous estimates for cost growth to build a realistic forecast.
How to forecast your business profits and plan for growth
What is a profit projection?
A profit projection estimates your future revenue, costs, and profit over a set period — typically 12 months, 3 years, or 5 years. It helps you plan for growth, set realistic targets, and secure funding. Banks and investors in South Africa almost always require profit projections before approving business finance.
How do I project revenue?
Start with what you know: current monthly revenue, the number of customers, and average transaction value. Then estimate growth. If you have 100 customers spending R2,000 each per month (R200,000 monthly revenue) and expect 10% growth, next year's projection is R2,640,000. Be conservative — it is better to exceed a modest target than miss an optimistic one.
What costs should I include?
Include all fixed costs (rent, salaries, insurance, loan repayments) and variable costs (materials, commissions, delivery). Do not forget tax obligations: provisional tax payments, VAT, UIF contributions (1% employer share), SDL (1% of payroll), and PAYE. A common mistake is projecting revenue growth without accounting for the extra costs needed to deliver it.
How do I account for tax in my projection?
If you operate as a company, budget for 27% corporate tax on profits. Sole proprietors pay individual tax rates (18% to 45%). Include provisional tax payment dates in your cash flow — these create lumpy outflows. Also budget for dividends tax (20%) if you plan to distribute profits. A R1,000,000 projected profit leaves R730,000 after company tax, or R584,000 after dividends tax.
What is a realistic growth rate for a South African business?
South Africa's GDP growth has averaged 1-2% in recent years, so matching or beating that is a reasonable baseline. High-growth sectors like fintech or renewable energy might see 20-50% annual growth. Established businesses typically grow 5-15% per year. Factor in inflation (5-6%) — if your revenue grows 5% but inflation is 5%, your real growth is flat.
How do I handle uncertainty in projections?
Create three scenarios: best case, most likely, and worst case. The worst case should assume losing your biggest client, a 20% drop in revenue, and unexpected costs. In South Africa, also consider load-shedding impact, exchange rate fluctuations (if you import materials), and potential minimum wage increases. Having a worst-case plan ensures survival even if things go wrong.
What tools can I use for profit projections?
A simple spreadsheet works for most small businesses. List monthly revenue and each expense category for 12 months. Use formulas to calculate gross profit, operating profit, and net profit. Many South African banks (FNB, Standard Bank, Nedbank) offer free business plan templates with built-in projection tools when you apply for business accounts.
SARS-Aligned: Based on 2025 SARS rates and thresholds. For personal advice, speak to a qualified tax practitioner.
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Disclaimer: This calculator provides estimates based on current HMRC rates and thresholds for the 2025/26 tax year. It does not constitute professional tax, financial, or legal advice. Your actual liability may differ depending on your individual circumstances. Always consult a qualified accountant or tax adviser before making financial decisions. Read our terms