South Africa · 2026

South Africa Compound Interest Calculator

Estimate compound interest on ZAR savings and investments in South Africa. Reference rates from SARB and SARS.

Enter Investment Details

Input the initial amount in ZAR, regular contribution, annual rate, and investment period.

Select Compounding Frequency

Choose how often interest compounds — Weekly, monthly, quarterly, or annually.

Review the Projection

Each tab shows the breakdown — Summary, Composition, Compare scenarios, and Milestones.

Compound Interest Calculator

Project investment growth — figures shown in ZAR

1 Investment Setup
R
R0R500,000
R
2 Growth Parameters
%
JSE All Share long-term ≈ 10% p.a. (total return) · Balanced fund (Reg 28) ≈ 8–10% · SARB repo rate: 6.75% (held March 2026)
yrs
%
SARB target: 3% (2–4% tolerance band)
3 Adjustments
%
TFSA: 0% on returns · Interest exemption R23,800 (R34,500 if 65+) · CGT 40% inclusion (max 18% effective)
Tax-efficient accounts (South Africa, 2026/27 tax year, from 1 March 2026): Tax-Free Savings Account (TFSA) annual contribution limit raised to ZAR 46,000 (up from ZAR 36,000 — first adjustment since 2021); lifetime cap unchanged at ZAR 500,000; all interest, dividends, and capital gains within a TFSA are tax-free; 40% penalty tax on any contribution above the limits · Retirement Annuity (RA) and pension/provident fund contributions deductible up to 27.5% of remuneration or taxable income capped at ZAR 430,000 per year (raised from ZAR 350,000 — first adjustment since 2016) · Two-pot retirement system in effect since 1 September 2024: Vested Pot (pre-Sept 2024 savings, old rules), Savings Pot (1/3 of new contributions, one tax-year withdrawal, taxed at marginal rate), Retirement Pot (2/3, locked until age 55, must annuitise) · Local interest exemption ZAR 23,800 (under 65) / ZAR 34,500 (65+) · CGT inclusion rate (individuals) 40%, max effective 18%, annual exclusion ZAR 50,000 (raised from ZAR 40,000); primary residence exclusion ZAR 3 million (raised from ZAR 2 million) · Eligible deposits at SARB-authorised banks protected by CODI up to ZAR 100,000 per depositor per bank (since 1 April 2024). Source: SARS.
Projected Future Value
R91,940
After 10 years · 6.0% p.a. · Monthly compounding
Principal
R10,000
Contributions
R60,000
Interest Earned
R21,940

Summary

Total InvestedR70,000
Interest on InterestR2,180
Effective Annual Rate6.17%
Real Return (after inflation)3.41%
Time to Double (Rule of 72)12.0 years
Final ValueR91,940

Investment Summary

An initial investment of R10,000 with R500 contributed monthly at 6.0% annual interest (compounded monthly) grows to R91,940 over 10 years.

Total contributions add up to R70,000, with R21,940 earned in interest — including R2,180 of compound growth (interest earned on previously earned interest).

Initial Investment
R10,000
Total Contributions
R60,000
Interest Earned
R21,940
Future Value
R91,940

Growth Projection

Total Balance Contributions Only
If you started 5 years earlier
+R40,500
If rate was +1% higher
+R8,640
Rule of 72: A quick estimate of doubling time — divide 72 by the annual rate. At 6%, money doubles approximately every 12 years.
Data sources
SARB Repo Rate SARS — Personal Income Tax SARS — Capital Gains Tax CODI Deposit Insurance

Yearly Breakdown

Year-by-year contributions, interest and balance. Figures reflect the view setting (Future R or Today's R).

YearContributionsInterestTotal InvestedBalance
Composition of Final Balance
Initial InvestmentR10,000
Total ContributionsR60,000
Interest EarnedR21,940
Final BalanceR91,940

Scenario Comparison

How different choices affect the final balance, all using your selected period and rate.

Your scenarioR91,940
Double the contributionR153,000
No regular contributionsR18,194
+2% higher annual returnR113,000

Compounding Frequency Comparison

Same principal, contribution, rate and period — only the compounding frequency changes.

FrequencyFinal ValueDifference vs Annual
South Africa reference points (May 2026): SARB repo rate 6.75% (held 26 March 2026 amid Iran conflict-driven oil shock; held 29 January 2026) · Prime lending rate 10.25% · SARB inflation target 3% over the medium term, with a 2–4% tolerance band (replaced the old 4.5% midpoint) · CPI February 2026: 3.0% (matched target) · JSE All Share ≈ 10% p.a. (long-term, total return including dividends) · Balanced fund (Reg 28 compliant) ≈ 8–10% p.a. · Fixed deposits ≈ 7–9% AER · High-interest savings ≈ 6–8% AER · RSA Retail Savings Bonds (NTMA-equivalent — National Treasury) ≈ 9–11% (2/3/5-year, fixed-rate or inflation-linked). Source: South African Reserve Bank.

Investment Milestones

Estimated time to reach common South African savings and investment milestones, based on the inputs above.

When you'll reach common targets

TargetYearsEstimated Year
South Africa retirement context (2026): SASSA Older Persons Grant (means-tested) ZAR 2,400 per month for ages 60–74 and ZAR 2,420 per month for 75+ from April 2026 · State pension qualifying age 60 (means-tested); private retirement annuity, pension and provident funds typically accessible from age 55 · Two-pot system in effect since 1 September 2024: Savings Pot accessible once per tax year (minimum ZAR 2,000 withdrawal, taxed at marginal rate); Retirement Pot locked until 55, must be annuitised · Annuitisation de minimis threshold ZAR 360,000 (raised from ZAR 247,500); living annuity commutation threshold ZAR 150,000 (raised from ZAR 125,000) · RA tax-deduction cap ZAR 430,000 per year. Source: gov.za.
Reference · South Africa 2026/27

South Africa Investment Options

Common investment types available to South African savers and investors, with typical historical returns and risk levels. Tap any option for detailed considerations.

Bank Savings Accounts

Very Low Risk
Typical Return6–8% AER
CompoundingDaily / Monthly

Notice or instant-access savings from SARB-authorised banks (FNB, Standard Bank, Nedbank, Absa, Capitec, TymeBank, etc.). Eligible deposits protected by CODI up to ZAR 100,000 per depositor per bank since 1 April 2024. Interest exemption ZAR 23,800 per year (under 65) / ZAR 34,500 (65+).

Key Considerations

Advantages

  • CODI protected (ZAR 100K)
  • Interest exemption available
  • No market risk
  • Easy to open online

Considerations

  • Returns may lag inflation
  • Interest above exemption taxed at marginal rate
  • Notice period for some accounts
  • Rand depreciation risk
Tap for details

Fixed & Notice Deposits

Very Low Risk
Typical Return7–9% AER
Term1 month – 60 months

Fixed-rate deposits locked in for a set term, or 32-day / 60-day notice deposits with higher rates than instant-access savings. CODI protected up to ZAR 100,000 per bank. Higher rates typically available for longer terms.

Key Considerations

Advantages

  • Locked-in rate
  • CODI protected
  • Predictable returns
  • Multiple term options

Considerations

  • Funds locked away
  • Early-access penalties
  • Interest exemption applies
  • Miss future SARB rate moves
Tap for details

RSA Retail Savings Bonds

Low–Medium Risk
Typical Return9–11% p.a.
Term2, 3, or 5 years

Government-backed bonds issued by National Treasury, available in fixed-rate and inflation-linked variants. Minimum ZAR 1,000 investment, maximum ZAR 5 million holding. Interest is taxable (subject to the standard exemption); not covered by CODI but backed by the South African government.

Key Considerations

Advantages

  • Government backed
  • Inflation-linked option available
  • Low minimum (ZAR 1,000)
  • Direct from National Treasury

Considerations

  • Funds locked for term
  • Interest fully taxable
  • SA sovereign credit risk
  • ZAR 5m maximum holding
Tap for details

Retirement Annuity (RA)

Low–Medium Risk
Typical Return7–12% p.a.
Tax TreatmentMarginal Relief

Tax-deductible retirement savings from providers such as Allan Gray, Coronation, Sygnia, 10X, Ninety One, and Sanlam. Contributions deductible up to 27.5% of remuneration or taxable income, capped at ZAR 430,000 per year (raised from ZAR 350,000 from 1 March 2026). Two-pot system in effect since 1 September 2024: Vested / Savings / Retirement pots.

Key Considerations

Advantages

  • Marginal-rate tax deduction
  • Tax-free internal growth
  • Two-pot Savings emergency access
  • Creditor protected (Reg 28)

Considerations

  • Retirement Pot locked until 55
  • Lump-sum & income taxed at retirement
  • 1/3 lump sum, 2/3 must annuitise
  • Reg 28 limits offshore exposure
Tap for details

Gold & Krugerrands

Medium Risk
Typical Return5–8% p.a.
IncomeNone (Capital)

Physical Krugerrands (legal tender, but not exempt from CGT — SARS treats Krugerrands as bullion, excluded from "personal-use assets"), gold ETFs (NewGold), or platinum/palladium. Capital gains taxed at 40% inclusion rate (max 18% effective for individuals) with annual ZAR 50,000 CGT exclusion.

Key Considerations

Advantages

  • Inflation hedge
  • Rand-depreciation hedge
  • Physical ownership option
  • Portfolio diversifier

Considerations

  • No income / dividends
  • Krugerrands subject to CGT (not exempt)
  • Storage / security costs
  • USD price volatility
Tap for details

Unit Trusts

Medium Risk
Typical Return8–12% p.a.
Tax TreatmentCGT 40% incl.

Pooled funds from FSCA-regulated managers including Allan Gray, Coronation, Ninety One, Sanlam, Old Mutual, and Sygnia. Equity, balanced (Reg 28), income, money-market, and global options. Capital gains taxed at 40% CGT inclusion (max 18% effective for individuals); dividends subject to 20% DWT.

Key Considerations

Advantages

  • Professional management
  • Built-in diversification
  • FSCA-regulated
  • Low minimums (some)

Considerations

  • TIC fees 0.5–2.0%
  • CGT on disposals
  • Dividends WHT 20%
  • Active funds may underperform
Tap for details

ETFs (JSE-listed)

Medium–High Risk
Typical Return8–12% p.a.
TER0.10–0.50%

Low-cost JSE-listed ETFs from Satrix, 1nvest, Sygnia, CoreShares, and others. Tracks indices like the JSE Top 40 / SWIX 40, MSCI World, S&P 500, or sectors. Capital gains 40% CGT inclusion (max 18% effective); dividends subject to 20% DWT. Eligible for inclusion in TFSA wrapper for tax-free growth.

Key Considerations

Advantages

  • Very low TER (0.1–0.5%)
  • Easy global exposure (feeders)
  • JSE intraday trading
  • Eligible for TFSA wrapper

Considerations

  • Brokerage fees apply
  • CGT on disposals (40% incl.)
  • Dividend WHT 20%
  • Currency risk (rand-hedged options exist)
Tap for details

South African Property

Medium–High Risk
Capital Growth4–7% p.a.
Rental YieldPlus 6–10%

Direct residential or commercial property. Primary residence CGT exclusion ZAR 3 million (raised from ZAR 2 million from 1 March 2026). Transfer duty applies on properties over the threshold. Rental income taxable at marginal rate (deductions for mortgage interest, rates, levies, repairs).

Key Considerations

Advantages

  • Tangible asset
  • Rental income stream
  • Primary home: ZAR 3m CGT exclusion
  • Mortgage leverage available

Considerations

  • Transfer duty on purchase
  • Rental income at marginal rate
  • 40% CGT inclusion on disposal
  • Illiquid; high transaction costs
Tap for details

SA REITs

Medium–High Risk
Typical Return8–12% p.a.
DistributionsBi-Annual

JSE-listed property companies including Growthpoint, Redefine, NEPI Rockcastle, Fortress, Hyprop, and Resilient. Must distribute 75%+ of income. REIT distributions are taxed at the holder's marginal rate (NOT subject to 20% DWT, unlike ordinary share dividends).

Key Considerations

Advantages

  • High yields (5–10%)
  • JSE liquidity
  • Diversified property exposure
  • Eligible for TFSA wrapper

Considerations

  • Distributions at marginal rate
  • Equity-market volatility
  • Interest-rate sensitive
  • SA economic exposure
Tap for details

Tax-Free Savings Account (TFSA)

Low–Medium Risk
Typical Return6–12% p.a.
Tax100% Tax-Free

Tax-free wrapper from banks, life companies, or fund platforms. Annual contribution limit raised to ZAR 46,000 from 1 March 2026 (up from ZAR 36,000 — first adjustment since 2021); lifetime cap unchanged at ZAR 500,000. 0% tax on interest, dividends, and capital gains. Cash TFSAs are CODI-protected up to ZAR 100,000.

Key Considerations

Advantages

  • Zero tax on returns
  • Flexible withdrawals
  • ETFs / unit trusts allowed
  • Transferable between providers

Considerations

  • ZAR 46K/year cap
  • ZAR 500K lifetime cap
  • 40% penalty if exceeded
  • Withdrawals don't restore allowance
Tap for details

JSE Stock Market

High Risk
Typical Return10–12% p.a.
Tax TreatmentCGT 40% incl.

Direct share investment on the Johannesburg Stock Exchange — Naspers / Prosus, Anglo American, BHP, Richemont, MTN, Sasol, Standard Bank, Capitec, FirstRand, Vodacom, etc. Capital gains: 40% inclusion rate at marginal rate, max 18% effective; annual exclusion ZAR 50,000 (raised from ZAR 40,000 from 1 March 2026). Dividends subject to 20% DWT.

Key Considerations

Advantages

  • 40% CGT inclusion (max 18% effective)
  • ZAR 50,000 annual CGT exclusion
  • 3-year-rule deemed-capital protection
  • Low-cost online brokers

Considerations

  • High volatility
  • Capital can be lost
  • 20% DWT on dividends
  • Concentration in commodity / large-cap names
Tap for details

Cryptocurrency

Very High Risk
Typical ReturnHighly Variable
Tax TreatmentIncome or CGT

Digital assets via FSCA-licensed Crypto Asset Service Providers (Luno, VALR, AltCoinTrader, Binance ZA). SARS treats crypto as an "intangible asset" (NOT legal tender, NOT currency): if held as long-term investment then CGT applies (40% inclusion, max 18% effective with ZAR 50,000 exclusion); if traded frequently or in a business-like manner then taxed as ordinary income (18%–45% marginal rate).

Key Considerations

Advantages

  • Rand-hedge potential
  • FSCA-licensed local exchanges
  • 24/7 global market
  • Staking rewards (some assets)

Considerations

  • Extreme volatility
  • Can lose 50%+ quickly
  • Taxed as income if frequent trading
  • Each disposal a taxable event
Tap for details
FAQ

Frequently Asked Questions

Common questions about compound interest, savings, retirement and tax in South Africa. Answers reference SARS, SARB, CODI, FSCA and National Treasury official guidance.

Important Disclaimer

For educational and informational purposes only. This calculator produces estimates based on the inputs provided and assumes a constant compounding rate over the projection period. Figures referenced reflect the South African 2026/27 tax year (commencing 1 March 2026): Tax-Free Savings Account (TFSA) annual contribution limit ZAR 46,000 (raised from ZAR 36,000) and lifetime cap ZAR 500,000; Retirement Annuity, pension and provident fund deduction limit 27.5% of remuneration or taxable income capped at ZAR 430,000 per year (raised from ZAR 350,000 — first adjustment since 2016); Capital Gains Tax for individuals at a 40% inclusion rate (max 18% effective) with annual exclusion ZAR 50,000 (raised from ZAR 40,000) and primary-residence exclusion ZAR 3 million (raised from ZAR 2 million); local interest exemption ZAR 23,800 (under 65) / ZAR 34,500 (65+); dividends withholding tax 20%; SARB repo rate 6.75% and prime lending rate 10.25% (held 26 March 2026); SARB inflation target 3% over the medium term, with a 2–4% tolerance band; the Corporation for Deposit Insurance (CODI) protects eligible deposits up to ZAR 100,000 per depositor per bank at SARB-authorised banks; the two-pot retirement system has been in effect since 1 September 2024. Past investment performance is not a reliable indicator of future returns.

No warranty of accuracy. While Money Snap takes reasonable care to source figures from official authorities (the South African Revenue Service, the South African Reserve Bank, the Corporation for Deposit Insurance, the Financial Sector Conduct Authority, and the National Treasury), this calculator is provided "as is" without any express or implied warranty as to accuracy, completeness, timeliness, or fitness for any particular purpose. Tax rates, contribution limits, repo rates, and retirement-fund rules change frequently — figures shown may be out of date following the annual Budget Speech, Finance Bill enactment, SARB Monetary Policy Committee decisions, or regulatory updates. Individual circumstances including tax residency, age, marital status, scheme rules, and other deductions claimed may materially affect actual outcomes.

Not financial advice. Money Snap is not registered as a Financial Services Provider with the Financial Sector Conduct Authority (FSCA) and does not hold permission to provide regulated financial advice in South Africa. Information provided is general in nature only and does not take into account your personal circumstances, financial situation, or objectives. Results do not constitute financial, investment, tax, or pension advice, and use of this calculator does not create an advisory relationship. Before acting on any figure shown, obtain personal advice from an FSCA-registered Financial Services Provider (verify FSP registration via the FSCA) or a SAIT-registered Tax Practitioner. Tax queries can be addressed directly to SARS via eFiling, the SARS MobiApp, or by SMS to 47277.

Limitation of liability. To the maximum extent permitted by law, Money Snap accepts no liability for any loss, damage, cost, or expense — direct or indirect — arising from reliance on this calculator or the information it produces. Investment products (JSE-listed shares, ETFs, unit trusts, REITs, cryptocurrency, life-assurance investment policies, structured products) carry capital risk and may fall as well as rise in value; CODI deposit insurance does not cover investment losses or non-deposit products. CODI protection of up to ZAR 100,000 per depositor per bank applies only to qualifying capital-guaranteed deposits (savings, current, transactional, term, notice, TFSA, and Murabaha accounts) at SARB-authorised banks since 1 April 2024. Krugerrands, despite being legal tender, are subject to Capital Gains Tax. Two-pot Savings Pot withdrawals are taxed at the member's marginal rate; Retirement Pot funds remain locked until age 55 and must be annuitised. Users are responsible for verifying all figures with the relevant authority before relying on them. Use of this calculator is subject to our Terms of Use.

SARS — Personal Income Tax SARS — CGT SARS — TFSA SARS — Two-Pot System SARB — Repo Rate CODI Deposit Insurance FSCA National Treasury

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