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High-Yield Savings Account Calculator
See how much you can earn with a high-yield savings account (HYSA) and compare it to a traditional savings account.
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Final Balance
Total Interest Earned
Extra vs Traditional Savings
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How to Use This Calculator
Enter your initial deposit, any monthly contributions you plan to make, the APY offered by the HYSA, and the length of your savings term in months. Click Calculate to see your projected final balance, total interest earned, and how much extra you'd earn compared to a traditional savings account at 0.5% APY.
How HYSA Interest Is Calculated
This calculator uses monthly compounding. Each month, interest is applied to your current balance (including any new contributions). The formula is: Balance = (Balance + Monthly Contribution) × (1 + Monthly Rate), where Monthly Rate = APY ÷ 12. Starting from your initial deposit, this compounds month by month over your chosen term. The result is your final balance; subtract total contributions to find interest earned.
HYSA vs Traditional Savings: The Real Difference
Traditional savings accounts at major banks typically offer around 0.5% APY or less. With a HYSA at 4–5% APY, you can earn 8–10× more interest on the same balance. On a $10,000 deposit over 12 months, a traditional account earns roughly $50 in interest, while a 5% HYSA earns over $500. The difference becomes even more dramatic with larger balances, regular contributions, and longer time horizons.
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Frequently Asked Questions
What is a high-yield savings account (HYSA)?
A high-yield savings account (HYSA) is a type of savings account that offers a significantly higher annual percentage yield (APY) than a traditional bank savings account. While traditional savings accounts often offer around 0.5% APY or less, HYSAs — typically offered by online banks and credit unions — often offer 4–5% APY or more. Your money remains liquid (accessible at any time), and deposits are FDIC-insured up to $250,000 per depositor.
What is the difference between APY and APR?
APY (Annual Percentage Yield) accounts for compound interest — it reflects the effective annual return when interest is compounded over the year. APR (Annual Percentage Rate) is a simple annual rate without compounding. For savings accounts, the advertised rate is always APY. For example, a 5% APR compounded monthly results in an APY of approximately 5.12%. When comparing savings accounts, always compare APYs for an apples-to-apples comparison.
How does a HYSA compare to a CD (Certificate of Deposit)?
Both HYSAs and CDs offer higher rates than traditional savings accounts, but they differ in flexibility. A CD locks your money for a fixed term (e.g., 6 months, 1 year, 2 years) and typically offers a higher fixed rate in exchange for that commitment. An HYSA keeps your money liquid — you can deposit and withdraw freely — but the rate is variable and can change with market conditions. CDs are better for money you won't need for a set period; HYSAs are better for emergency funds or money you may need access to.
Are high-yield savings accounts FDIC insured?
Yes. HYSAs at FDIC-member banks are insured up to $250,000 per depositor, per insured bank, per ownership category — the same coverage as traditional savings accounts. HYSAs at credit unions are insured by the NCUA (National Credit Union Administration) under the same $250,000 limit. Always verify that any bank or credit union you choose is a member of the FDIC or NCUA before opening an account.
When should I use a HYSA vs investing in the stock market?
Use a HYSA for money you need to keep safe, liquid, and accessible — such as your emergency fund (3–6 months of expenses), a down payment you're saving for, or any money you'll need within 1–3 years. Invest in the stock market for long-term goals (5+ years away) where you can tolerate short-term volatility in exchange for potentially higher returns. HYSAs currently offer competitive rates (4–5%), but historically the stock market returns ~7–10% annually over the long run. A well-balanced strategy uses both.
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