TFSA Calculator South Africa
Project your Tax-Free Savings Account growth with the R36,000 annual and R500,000 lifetimecaps applied. The tool shows when you'll hit the lifetime cap, projects post-cap growth on the existing balance, and quantifies the SARS tax saved versus the same contributions in a taxable investment.
R3,000/month is the maximum that fits the R36,000 annual cap.
SA equity TFSAs ~10–12% historically. Cash TFSAs ~8%.
TFSAs reward long compounding — every R1 contributed becomes R5+ over 25 years at 10%.
Lifetime cap projected to hit in year 14.
Total contributions reach the R500,000 cap. After that, no further deposits are allowed but the balance keeps compounding tax-free for the remaining 6 years.
Tax-free balance after 20 years
R 2 000 304
≈ R 402 770 tax saved vs a non-TFSA equivalent
You contribute
R 504 000
Capped at year 14
Tax-free interest
R 1 496 304
297% of contributions
Estimated SARS tax saved
R 402 770
vs same growth, taxed
Year by year
Tax-saving figure is an estimate based on a ~1.5%/year assumed tax drag on a non-TFSA equivalent investment (interest income above R23,800 exemption taxed at marginal rate, 20% dividends withholding, 12.4% effective CGT for a typical 31% marginal-rate earner). The real saving for high earners is often higher. For a generic compound-interest calculation without TFSA caps, see the compound interest calculator.
Data: Effective 1 March 2026 · Income Tax Act s12T · SARS TFSA limits 2026/27 · See methodology
TFSA limits and rules — South Africa 2026
| Rule | Amount / Rate |
|---|---|
| Annual contribution cap | R36,000 |
| Lifetime contribution cap | R500,000 |
| Max monthly debit order | R3,000 |
| Over-contribution penalty | 40% |
| Tax on interest | 0% |
| Tax on dividends | 0% |
| Tax on capital gains | 0% |
| Minimum holding period | None |
| Annual cap introduced | R36k since 2020 |
Source: Income Tax Act s12T · SARS TFSA limits 2026/27 · Effective 1 March 2026
How TFSAs actually work
The Tax-Free Savings Account was introduced by the SA government in 2015 as a way to encourage long-term saving by ordinary South Africans. Inside the wrapper, all growth is tax-free— interest, dividends, and capital gains. You only pay no tax when you withdraw, and there's no minimum holding period. The catch is the cap: R36,000 per tax year (1 March to 28 / 29 February) and a hard R500,000 lifetime ceiling.
The structure rewards two behaviours that most retail investors skip: starting early and maxing out the annual contribution. A 25-year-old who contributes R3,000 every month from age 25 hits the lifetime cap at age 39 (year 14), then has 26 years of pure tax-free compound growth on the existing balance. By age 65 their TFSA is worth roughly R10–14m in nominal terms — entirely tax-free.
The mistake to avoid is opening multiple TFSAs without coordinating contributions. The R36,000 cap applies per person, not per account. If you have an Easy Equities TFSA, an Allan Gray TFSA, and a Standard Bank TFSA, the R36,000 limit covers all three combined. Over-contribute by R10,000 across them and SARS taxes you R4,000 (40%). Most over-contributions come from forgetting an old TFSA or from spousal accounts being mixed up.
On withdrawals: you can take money out at any time, tax-free, no minimum holding period. But the withdrawal does NOT restore contribution room. If you've put in R200,000 and withdraw R50,000, your remaining lifetime allowance is still R300,000, not R350,000. This is the single biggest TFSA misunderstanding among new investors. Treat withdrawals as permanent for cap-tracking purposes.
Frequently asked questions
What is a Tax-Free Savings Account (TFSA)?
A TFSA is an SA government-introduced (2015) wrapper that lets you invest with all growth — interest, dividends, capital gains — completely tax-free. You can put up to R36,000 per tax year and a lifetime maximum of R500,000. Inside the wrapper you can hold cash, unit trusts, ETFs, share-class equity (via brokers like Easy Equities) or bond funds. Withdrawals at any time are also tax-free, with no minimum holding period. The catch: withdrawals do NOT restore your contribution room — once you've put in R500,000 over your life, that's it forever, even if you withdraw.
What's the maximum I can contribute?
R36 000 per tax year (1 March – 28/29 February) and a lifetime maximum of R500 000. The annual cap was R30,000 from 2015–2017, R33,000 from 2017–2020, and R36,000 since 2020. Lifetime cap has always been R500,000. Anything above the annual cap is taxed at 40% — a heavy SARS penalty designed to discourage using the TFSA as a tax shelter for very high earners. The maximum monthly contribution that fits the cap is R3,000, and that's exactly what most TFSA-aware investors set their debit order at.
What happens at the R500,000 lifetime cap?
Once you've contributed R500,000 across your lifetime, no more deposits are allowed — but the existing balance keeps compounding tax-free indefinitely. Most maxing-out investors will hit the cap in year 14 if they contribute the full R36,000/year from year one (R36k × 14 = R504,000). After that, the existing balance can keep growing for another 30+ years entirely tax-free. The calculator above models this two-phase behaviour: contributions until the cap year, then pure growth thereafter.
Why does TFSA tax-free growth matter?
Outside a TFSA, you're paying tax on interest income above R23,800/year (under-65) at your marginal rate, 20% withholding tax on local dividends, and effective CGT of 9–18% (40% inclusion × marginal rate) on capital gains when you sell. Inside a TFSA, all of that is gone. For a higher-income earner saving R3,000/month at 10% over 30 years, the lifetime tax saved easily exceeds R1,800,000 — the calculator's tax-savings number is a conservative estimate of that figure. The longer the period and higher your tax bracket, the more the TFSA matters.
Where should I open a TFSA?
The popular choices in May 2026: Easy Equities (low cost, share-class equities + ETFs, instant), Allan Gray (managed unit trusts, longer track record, slightly higher fees), 10X (low-cost passive index, simple), Nedgroup Investments, Coronation, and most major banks (Standard Bank, FNB, Capitec). Picking criteria: keep total expense ratios (TER) under 1% per year — fees compound just like returns. For a 30-year horizon, a 0.5% TER vs 1.5% TER is the difference between R3.2m and R2.6m on the same R36k/year contribution. Most readers should default to a low-cost passive equity-heavy TFSA via Easy Equities or 10X.
What's the over-contribution penalty exactly?
If you contribute more than R36,000 in a tax year (across ALL your TFSAs — Allan Gray + Easy Equities + Standard Bank all count toward the same R36,000), SARS taxes the excess at 40%. Practical example: if you put R50,000 into your TFSA in one year, the R14,000 over the cap is taxed at R5,600. SARS finds out via the IT3(s) certificate your TFSA provider files automatically. The mistake to avoid: opening a second TFSA without realising the cap is per-person, not per-account. Track total contributions across providers yourself.
Can I withdraw and re-contribute?
You can withdraw any amount at any time, tax-free. But the withdrawal does NOT restore your contribution room. If you've contributed R400,000 and withdraw R100,000, you still only have R100,000 of lifetime contribution room left — not R200,000. This is the single biggest TFSA gotcha. Before withdrawing, check whether you actually need the money or whether you're permanently shrinking your tax-free space. For genuine emergencies, your TFSA is a perfectly valid emergency fund (better than most). For top-ups during a market dip, remember that re-investing won't restore room.
How is this different from the compound interest calculator?
The compound interest calculator is generic: any rand amount, any rate, any horizon. It doesn't know about TFSA caps, doesn't apply the over-contribution warning, and doesn't compute tax savings vs an equivalent taxed investment. This TFSA calculator is purpose-built for the SA TFSA wrapper: it enforces the R36k/R500k caps in the projection, flags over-contributions, and quantifies the tax benefit. Use this one for actual TFSA planning; use compound interest for any other 'how does my money grow' question.
Sources: SARS Section 12T of the Income Tax Act (TFSA legal framework); SARS published rates for the 2026/2027 tax year (PAYE brackets, dividends withholding, CGT inclusion); R36,000 annual cap and R500,000 lifetime cap unchanged since 2020. Tax-saving estimate based on a conservative 1.5%/year tax drag on a non-TFSA equivalent — the real saving for higher-income earners (above R750,000 taxable income) is materially larger. Not financial advice; consult a registered SA financial planner before opening or switching TFSA providers.
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