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South Africa CGT Quick Estimator

Quick South African CGT estimate using the 40% inclusion rate and a taxpayer-type rate. For a band-by-band tax result, use the full capital-gains calculator.

South Africa estimateLast reviewed 15 August 2026Reviewed after a tax-year or rule change

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Calculator inputs

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When to use this calculator

  • Before accepting a pay change, bonus or contribution arrangement.
  • When you want a simple take-home or conversion estimate before payroll or filing.
  • When you need to convert between hourly, monthly and annual pay.
  • When you want to compare two pay scenarios using the same assumptions.

A realistic South Africa planning example

Use these sample inputs as a quick scenario test, then change one variable at a time to compare outcomes.

A realistic South Africa planning example
InputValue
Sale Proceeds (R)1500000
Base Cost / Purchase Price (R)R0.30
Taxpayer TypeIndividual

After entering these figures, review capital gain, taxable gain (after exclusion) and included gain together rather than in isolation. Then rerun the tool with one input adjusted.

How to read your results

Capital Gain

The figure produced by this output for the inputs you entered. Change one variable at a time if you want to see what drives it.

Taxable Gain (after exclusion)

Review this figure alongside gross income and the local tax rules that apply to you. It is a planning estimate, not a filing result.

Included Gain

The figure produced by this output for the inputs you entered. Change one variable at a time if you want to see what drives it.

Estimated CGT

The figure produced by this output for the inputs you entered. Change one variable at a time if you want to see what drives it.

Effective CGT Rate

The figure produced by this output for the inputs you entered. Change one variable at a time if you want to see what drives it.

Common mistakes

  • !Using an assumption that is not supported by a current local quote, bill, statement or official source.
  • !Treating a generic estimate as a lender, provider, payroll or tax authority decision.
  • !Mixing monthly and annual inputs without converting them consistently.
  • !Testing only one scenario instead of checking how a cautious assumption changes the result.

What to do next

  • Run a second scenario with a cautious assumption so you can see the downside clearly.
  • Compare the result with the related calculators below before making a decision.
  • Check current local rules, eligibility and provider terms before applying or committing money.
  • Keep a record of the assumptions so you can update the estimate when a quote, bill or pay figure changes.

Frequently asked

For individuals, 40% of the net capital gain (after the R40,000 annual exclusion) is added to taxable income and taxed at your marginal income tax rate. The maximum effective CGT rate for an individual is 18% (40% × 45% top marginal rate). This calculator uses the top rate as a conservative estimate for large gains.

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