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    Home » Blog » The Myth of Compounding Interest: What They Don’t Want You to Know
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    The Myth of Compounding Interest: What They Don’t Want You to Know

    Sandeep N SettyBy Sandeep N SettyDecember 21, 20244 Mins Read
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    One of the biggest misquotes of all time was falsely attributed to Albert Einstein and spread like wildfire—mostly by financial institutions:

    “Compound interest is the eighth wonder of the world.”

    But here’s the truth: Einstein never said that. Instead, he said:

    “Compounding numbers are the eighth wonder of the world.”

    It’s not the same thing at all. So why has this misquote been pushed so aggressively? Because financial institutions want you to believe in the magic of compounding interest. They want you to park your money with them for as long as possible while they keep earning from your deposits, investments, and fees.

    But in reality, compounding interest is a myth—at least the way it’s sold to us. Let’s break down why.

    1. Inflation Destroys Compounding Returns

    Compounding assumes that money will grow exponentially over time, but what good is it if your purchasing power is shrinking?

    • If your investment compounds at 10% per year but inflation is 6%, your real return is only 4%.
    • Over decades, this compounding advantage has been largely neutralised by rising costs.

    Financial institutions won’t tell you this because they want you to focus on nominal (before inflation) returns, not real returns.

    2. Taxes Eat Into Your Gains

    Compounded gains are not tax-free unless they’re in a special tax-sheltered account.

    • Every time you earn interest, dividends, or capital gains, you likely owe taxes on them.
    • If you withdraw money, capital gains taxes further reduce the compounding effect.

    The more taxes you pay, the less money remains to compound. This is a major flaw in the “compounding will make you rich” argument.

    3. Market Volatility Breaks the Cycle

    Compounding assumes steady, uninterrupted growth, but the stock market is anything but stable.

    • If you lose 50% in one year, you need a 100% gain just to recover.
    • Market crashes, recessions, and downturns reset the compounding process, making it far less effective in real life than in theoretical models.

    This is why many people never see the long-term exponential growth they were promised.

    4. Fees and Expenses Reduce Growth

    The biggest winners of compounding aren’t investors—it’s financial institutions!

    • A 1-2% annual fee might seem small, but over decades, it can reduce your total returns by 30% or more!

    Compounding works best when left untouched, but financial institutions profit the longer you keep your money invested.

    5. Human Behavior Interrupts Compounding

    Even if compounding works in theory, it assumes that investors will stay disciplined. The reality?

    • Many investors panic during downturns and sell low instead of waiting.
    • Life events like buying a house, funding education, or unexpected medical expenses force people to withdraw early before compounding can take effect.
    • Most people don’t invest with a 50-year horizon, making compounding far less effective in practice.

    Compounding requires decades of uninterrupted growth, which is unrealistic for most investors.

    6. Banks and Institutions Want to Hold Your Money—Not Return It

    Let’s be honest: banks love the compounding myth because it keeps people locked in.

    • They want you to believe in “investing for the long term” so that they can use your money for their lending and investments.
    • The longer they hold your money, the more they profit from it.
    • Mutual funds, and banks make money off your investments—whether you do or not.

    It’s no wonder they keep pushing this “eighth wonder of the world” myth.

    So, Is Compounding Interest a Total Scam?

    Not exactly. Compounding works in a controlled, ideal scenario. But in real life, it rarely delivers as promised because:

    ✅ Inflation eats into returns.
    ✅ Taxes reduce compounding gains.
    ✅ Market volatility breaks the cycle.
    ✅ Fees quietly drain your money.
    ✅ Most people can’t stay invested long enough.

    Instead of blindly believing in compound interest, focus on practical wealth-building strategies:

    ✔ Cash-flow-based investments that generate real, usable income.
    ✔ Tax-efficient investment strategies that minimise unnecessary deductions.
    ✔ Asset protection and diversification to survive market downturns.
    ✔ Smart allocation of funds instead of chasing theoretical projections.

    Final Thought

    Compounding isn’t entirely a myth, but the way it’s sold is. Financial institutions benefit from your belief in compounding more than you do. Don’t fall for the illusion—focus on financial strategies that work for you.

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    Sandeep N Setty
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    Sandeep N Setty is a Financial Advisor, Author, and Speaker specializing in asset structuring and inter-generational planning. He helps business owners and affluent families achieve financial independence and lasting wealth.

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