High-Yield Savings Calculator

Calculate interest earned in a high-yield savings account vs traditional checking.

By Konstantin Iakovlev · Updated April 2026 · Source: SEC

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Use the High-Yield Savings Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.

How It Works

Where you park cash changes how fast it grows. Setting a high-yield savings account beside an ordinary checking account here shows compounding at work, and the contrast is stark: HYSA rates are projected near 4.50% by 2026, while checking accounts often sit close to 0.05%.

Both accounts are run through the same monthly compounding method. Each month the current balance is multiplied by the annual percentage yield (APY) divided by 12, and that month's interest is added to the principal to set the starting balance for the next month. Repeating the cycle traces how each account climbs over your chosen horizon.

Small rate gaps look trivial month to month yet compound into real money across years, which is easy to underestimate. APYs do move with the market, but an account paying consistently more will always pull ahead of one paying less. Inflation is the last piece worth weighing, since it determines what your balance is actually worth in real terms.

Saving for a Down Payment

  1. 1 Enter an initial deposit of $10,000 and a monthly contribution of $500. Set the investment horizon to 3 years.
  2. 2 The calculator will apply a 4.50% APY for the HYSA and a 0.05% APY for the checking account, compounding monthly over 36 months.
  3. 3 After 3 years, your HYSA balance could be approximately $29,915, while your checking account would be around $28,015. That's nearly $1,900 more in interest!
  4. 4 This example demonstrates how a high-yield savings account can significantly boost your savings over time, especially for larger goals like a down payment, compared to letting your money sit in a low-interest checking account.

Source: SEC · Last updated: April 2026

Frequently Asked Questions

How much interest can I earn in a high-yield savings account?
As of 2026, top HYSAs offer 4-5% APY. On a $10,000 balance, that earns $400-$500 per year, compared to about $5-$10 in a traditional savings account at 0.05-0.10% APY. Interest is compounded daily in most HYSAs.
Are high-yield savings accounts safe?
Yes, if the bank is FDIC-insured (or NCUA-insured for credit unions). Your deposits are protected up to $250,000 per depositor per institution. Online banks offering higher rates are just as safe as traditional banks in this regard.
Is a HYSA better than a CD?
A HYSA offers flexibility to withdraw anytime, while CDs lock your money for a fixed term at a guaranteed rate. When HYSA and CD rates are similar, the HYSA is usually better due to liquidity. CDs are better when you want to lock in a high rate before rates drop.

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