How much interest does $10,000 earn in a high-yield savings account? (2026 rates)

The short answer: a $10,000 deposit in a high-yield savings account earning 4.85% APY (the highest unconditional rate on our board as of April 2026) earns approximately $485 in one year. At the national average of 0.38% APY, the same $10,000 earns $38. The difference is $447 — money that exists purely because of where you put your cash.

The math at every rate on our board

We track 18 accounts. Here is what $10,000 earns in one year at each institution's current rate, assuming no deposits or withdrawals:

• Varo (5.00% on first $5K, 2.50% on rest): $375/year — blended 3.75% because the 5% cap makes the effective rate lower on $10K.
• BrioDirect (4.85%): $485/year — highest unconditional earnings at this balance.
• UFB Direct (4.57%): $457/year.
• LendingClub (4.00%): $400/year.
• Bread Savings (4.00%): $400/year.
• CIT Bank (3.75%): $375/year.
• Bask Bank (3.75%): $375/year.
• Marcus (3.65%): $365/year.
• Synchrony (3.50%): $350/year.
• Barclays (3.50%): $350/year.
• Wealthfront (3.30%): $330/year.
• SoFi with DD (3.30%): $330/year.
• Discover (3.30%): $330/year (existing customers only — no longer accepting new accounts).
• Fidelity Cash Management (3.27%): $327/year.
• Ally (3.20%): $320/year.
• Capital One (3.20%): $320/year.
• American Express (3.20%): $320/year.
• Alliant (3.10%): $310/year.
• National average (0.38%): $38/year.
• Chase Savings (0.01%): $1/year.

Does compounding frequency matter?

Yes, but less than you think. At 4.85% APY, the difference between daily compounding and monthly compounding on $10,000 over one year is approximately $2.40. APY (Annual Percentage Yield) already accounts for compounding — it is the effective annual rate after compounding. So when we say BrioDirect pays 4.85% APY, that already includes the compounding effect. The stated APY is the number that matters for comparison.

What about taxes?

Interest earned in a savings account is taxable as ordinary income. If you earn $485 in interest and your marginal tax rate is 22%, you owe approximately $107 in federal income tax on that interest. Your after-tax earnings are $378. State taxes may apply as well, depending on where you live. The bank will send you a 1099-INT form for any interest over $10 per year.

What about larger balances?

The math scales linearly. At 4.85% APY: $25,000 earns $1,212/year. $50,000 earns $2,425/year. $100,000 earns $4,850/year. At 3.20% (Ally/Capital One): $25,000 earns $800. $50,000 earns $1,600. $100,000 earns $3,200. The gap between 4.85% and 3.20% on $100,000 is $1,650/year — at that point, the rate difference is genuinely significant.

How long does it take to earn $1,000 in interest?

At 4.85% APY with a $10,000 balance: approximately 25 months. At 3.20% APY with a $10,000 balance: approximately 38 months. At the national average of 0.38%: approximately 26 years. If you want to earn $1,000 in interest in one year, you need approximately $20,600 at 4.85% APY or $31,250 at 3.20% APY.

Frequently asked questions

Is $10,000 enough for a high-yield savings account?

Most HYSAs have no minimum balance. You can open an account with $1 at many institutions. $10,000 is a perfectly good starting balance — it typically represents a solid emergency fund for a single person. The rate is the same whether you deposit $100 or $100,000 (except at Varo, which tiers at $5,000).

How often is interest paid?

Most HYSAs compound interest daily and credit it to your account monthly. That means you will see your interest payment appear in your balance once per month, and the following month you earn interest on the previous month's interest (compounding).

Do I need to report savings account interest on my taxes?

Yes. Banks are required to send you a 1099-INT form for any interest over $10 per year. You report this on your federal (and potentially state) tax return. The interest is taxed as ordinary income at your marginal tax rate.