Compound Interest Calculator South Africa 2026 (Savings & Fixed Deposits)
Calculate daily, monthly, and annual compound interest in Rand (ZAR) with recurring deposits, Capitec/TymeBank presets, and SARS annual exemption (R23,800 under 65).
South Africa · Compound Interest Calculator South Africa
Methodology
Applies compound interest formula A = P(1 + r/n)^(nt) + PMT * [((1 + r/n)^(nt) - 1) / (r/n)]. Includes statutory SARS interest exemption under section 10(1)(i): R23,800 per annum for taxpayers under 65, and R34,500 per annum for individuals aged 65 and older. Interest earnings exceeding these thresholds are subject to personal income tax at the individual's marginal tax rate.
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User-provided inputs
This calculator uses only the values you enter. It does not automatically apply tax law, statutory deductions, lender fees, or live exchange rates.
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Formula basis
The formula is shown openly and no country rate is inserted automatically.
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Your estimate
AfricalHub is an independent private platform not affiliated with any government agency. Calculations are for educational planning only. Verify official filings with the relevant revenue authority or a qualified professional.
Sources
User-provided inputs
This calculator uses only the values you enter. It does not automatically apply tax law, statutory deductions, lender fees, or live exchange rates.
Frequently asked questions
What is the SARS annual interest exemption for 2025/2026?
Under 65 taxpayers enjoy an annual tax exemption on the first R23,800 of local interest earnings. Taxpayers aged 65 and older receive an exemption of R34,500 per year.
What is the difference between simple and compound interest?
Simple interest is earned only on the initial principal. Compound interest earns interest on both the principal and previously accumulated interest, accelerating growth exponentially.
Which South African banks offer the best compound interest rates?
Capitec, TymeBank, African Bank, Discovery Bank, and RSA Retail Savings Bonds offer fixed and notice deposit rates typically between 7.5% and 9.5% per annum.