Personal finance toolkit · South Africa

Financial Planning

SA-localised calculators for tax, retirement, the two-pot system, goal planning and loan amortisation. Tax tables and contribution limits are the SARS 2024/25 figures. Everything runs in your browser.

South African income tax (2024/25)

Compute your marginal and effective rates, including the RA tax shield benefit.

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Capped at 27.5% of taxable income, max R350 000 / year.

Section 6A medical scheme fees tax credit.

Method & sources

Brackets, rebates and thresholds are the SARS 2024/25 individual figures.

  • Brackets 18% / 26% / 31% / 36% / 39% / 41% / 45%.
  • Primary rebate R17 235; secondary (65+) R9 444; tertiary (75+) R3 145.
  • Section 11F RA / pension / provident: 27.5% of greater of taxable income or remuneration, capped at R350 000.
  • Section 6A: R364/month for first two members, R246/month for each additional.

Retirement projection with Monte Carlo

1 000 simulated paths show the 10th–90th percentile cone around the median outcome. Returns are seeded so results are reproducible.

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After inflation. Reg-28 balanced funds historically ≈ 4–7% real.

Annual standard deviation of returns.

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Rule of thumb: 25× desired annual income (4% safe-withdrawal heuristic).

Nominal, net of the inflation toggle below.

Method & assumptions

Geometric Brownian motion in real terms, monthly steps. Each simulation samples a normal return with mean μ/12 and std σ/√12 per month. Contributions escalate annually at the escalation rate (real terms = nominal − inflation). Seed: 0xF1A7 (deterministic for reproducibility).

The success score is the proportion of paths that reach or exceed your target pot at the retirement age.

Two-pot withdrawal calculator

From 1 September 2024, one third of new contributions accrue to a "savings pot" you can access annually (taxed at marginal rate). Two thirds are locked until retirement.

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Minimum R2 000 per annual withdrawal; cannot exceed savings-pot balance.

Why this matters

Savings-pot withdrawals are taxed at your marginal rate, not the favourable retirement-fund lump-sum table. On a R30 000 withdrawal at the 36% bracket you keep ~R19 200. Treat it as last-resort liquidity, not a top-up income stream.

Goal planner

Work backwards from a target. Switch between TFSA, RA and discretionary vehicles to compare after-tax outcomes.

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Used for RA shield and discretionary CGT/dividend drag.

Loan amortisation

For home loans, vehicle finance and personal loans. Default rate is current SA prime (11.25%).

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Shows the interest saved and term shortened.

SA market context

Reference figures used by the calculators above. Snapshot as at 2025-01. Replace with live data in production.

These are illustrative reference rates for scenario modelling, not tradeable quotes. The repo and prime rates anchor lending costs; inflation drives the conversion between nominal and real returns; the JSE Top 40 figure is a reasonable proxy for an SA equity-heavy Reg-28 fund.