Calculate compound interest in EUR for Greek investors. Model lump-sum and regular investments with annual compounding and optional Greek capital gains tax at 15% on exit.
Enter your initial investment, monthly top-up, annual return, and investment horizon to project compound growth in Greece, with optional CGT at exit.
Final value after CGT
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Gross value before tax
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Total contributed
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Investment gain
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CGT at exit
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Your breakdown
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How compound interest works in Greece
Compounding turns regular savings into substantial wealth over time. The key insight is that each year's growth becomes part of the base for next year's return. A Greek investor consistently saving 500 EUR/month from age 30 to 60 at 7% annual return accumulates approximately 600,000 EUR before tax. The power of compounding means the last decade contributes almost as much as the first two decades combined.
Example calculation
Initial: 20,000 EUR. Monthly: 500 EUR. Return: 7%. Period: 20 years. Total contributed: 140,000 EUR. Gross value: approximately 298,000 EUR. Gain: 158,000 EUR. CGT at 15%: 23,700 EUR. Net at exit: 274,300 EUR, more than double what was contributed.
Tips and considerations
Consistency beats timing. Missing contributions in market downturns costs more than any short-term gain from trying to time the market. Automate monthly contributions to a low-cost EU-listed ETF. Start as early as possible; even small amounts at age 25 compound dramatically by age 55.
Frequently asked questions
How does compound interest work for a Greek investor?
Compound interest is the mechanism by which investment returns are reinvested to generate further returns, creating exponential growth over time. For a Greek investor, the compounding works identically to any other investor, but the effective return is influenced by Greek taxes on investment income. Interest on deposits is taxed at 15% annually (withheld at source), which reduces the compounding base each year. Capital gains on equity investments accumulate untaxed inside accumulating ETFs until you sell, making them more tax-efficient compounding vehicles than deposits or distributing funds.
What is the Rule of 72 and how does it apply in Greece?
The Rule of 72 is a quick mental shortcut: divide 72 by your annual return rate to estimate how many years it takes to double your investment. At 7% return, your investment doubles in approximately 72 / 7 = 10.3 years. At a more conservative 5% (reflecting Greek deposit and bond returns), doubling takes 72 / 5 = 14.4 years. For Greek investors in accumulating ETFs earning a net-of-tax 6%, the Rule of 72 gives doubling in 12 years. This mental shortcut is useful for quick retirement or FIRE timeline checks.
Does the 15% Greek CGT significantly affect long-term compound growth?
For a buy-and-hold investor in accumulating ETFs, the 15% Greek CGT is paid only at the final sale, not annually. This means the full pre-tax compound growth occurs throughout the holding period, and the 15% only reduces the gain at the end. For a 20-year investment at 7% annual return, a 100,000 EUR initial investment grows to approximately 387,000 EUR. The gain is 287,000 EUR. CGT at 15%: 43,000 EUR. Net at exit: 344,000 EUR. The annual equivalent impact of deferring the 15% to the end is much lower than if tax were applied each year, making long-term buy-and-hold investing highly tax-efficient in Greece.
Should I prefer accumulating or distributing ETFs in Greece?
Accumulating ETFs (which reinvest dividends internally) are generally more tax-efficient for long-term growth in Greece because they defer all taxation until you sell. Distributing ETFs pay out dividends that are subject to 5% Greek withholding each year, interrupting compounding slightly. However, the 5% dividend rate is very low, so the difference is modest. For investors in the decumulation phase (spending their portfolio), distributing ETFs provide a steady cash flow without needing to sell units, which can be advantageous. For accumulation, especially over long horizons of 15 to 30 years, accumulating ETFs typically deliver more terminal wealth.