Compound Interest Calculator
Financial Planning Tool

Compound Interest Calculator

See how your money grows over time with the power of compounding

💰 Lump Sum + Contributions 📈 Compound Frequency 📅 Year-by-Year Schedule
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Investment Details
$
%
yrs
$
Projected Growth
Total Future Value
after 20 years
Initial Principal
starting amount
Total Contributions
money added
Interest Earned
compound growth

Composition of final balance

Principal
Contributions
Interest
Year Starting Balance Contributions Interest Earned Ending Balance Total Growth
⚖️ Tax & General Disclaimer

This calculator is for illustrative and educational purposes only and does not constitute financial, tax, investment, or legal advice. Results are hypothetical projections based on constant inputs and do not account for real-world variability.

Tax considerations to be aware of: In Canada, investment growth is generally subject to tax depending on the account type. Interest income earned outside a registered account (e.g., TFSA or RRSP) is taxed as ordinary income at your marginal rate in the year it is received. Capital gains are taxed at a preferential rate (currently 50% inclusion). Dividends from Canadian corporations may qualify for the dividend tax credit. Growth inside a TFSA is tax-free on withdrawal. Growth inside an RRSP is tax-deferred — withdrawals are added to income in the year taken. This calculator does not model any of these tax treatments and assumes all growth is reinvested without deduction.

Other assumptions: The rate of return is assumed to be fixed and does not reflect inflation, market volatility, fees, MERs, currency fluctuations, or changes in contribution amounts. Actual investment returns will vary and past performance is not indicative of future results.

Always consult a qualified financial advisor, tax professional, or accountant before making investment decisions. For official CRA guidance on registered accounts and investment taxation, visit canada.ca/cra.