How much will $10,000 make in a high-yield savings account?
At 4% APY, $10,000 earns $400 in a year, about $33 a month at first. Left for five years it grows to $12,167, because each month’s interest starts earning interest too. In a typical savings account at the 0.37% national average, the same $10,000 earns $37 a year.
“How much money will $10,000 make in a high-yield savings account in a year?”
$400 at 4% APY, for $10,400. Try this scenario
“How much will $2,000 grow in a high-yield savings account?”
About $80 in a year at 4% APY, and $433 over five years. Try this scenario
How much interest will $100,000 earn per month?
About $327 a month at 4% APY, or $4,000 over a year. To earn $3,000 a month in interest at that rate, you’d need about $916,000 saved, and $1 million would pay about $3,274 a month. The calculator shows the interest for your first and last month under the results.
“How much will $100,000 make in a high-yield savings account?”
$4,000 in a year at 4% APY, about $327 a month. Try this scenario
What about saving a little every month?
Regular deposits do most of the work in the early years, and interest takes over later. Start with $10,000 and add $500 a month at 4% APY and you’d have $45,256 after five years, $5,256 of it interest. At the national average rate, the same deposits earn just $460.
“I have $10,000 and can save $500 a month. What will I have in 5 years?”
$45,256 at 4% APY, including $5,256 in interest. Try this scenario
“How much will $1,000 be worth in 20 years in savings?”
About $2,191 at 4% APY, if the rate held that long. Savings rates change, so treat long projections as rough. Try this scenario
High-yield vs. regular savings: how big is the gap?
Large. The FDIC’s national average savings rate was 0.37% in September 2026, while high-yield accounts often pay close to the Federal Reserve’s policy rate, then about 3.6%. On $10,000 that’s the difference between $37 and about $400 a year. Most are at online banks with no branches, which is how they afford it.
The results compare your plan with the national average rate, so you can see what staying in a low-rate account costs.
What’s the downside of a high-yield savings account?
The rate is variable: when the Federal Reserve cuts rates, savings rates usually follow within weeks. Interest is taxed as income, and after inflation the real return is small. Some banks still limit withdrawals each month, and transfers to your checking account can take a day or two.
Very high advertised rates, 7% or more, usually come with strings: a low balance cap, a minimum number of debit card purchases or a short promotional period. To lock in a rate, look at a CD instead. For money you won’t need for years, investing is likely to earn more; compare with the compound interest calculator.
High-yield savings FAQ
Is a high-yield savings account FDIC insured?
Yes, if it’s at an FDIC-insured bank: up to $250,000 per depositor, per bank, per ownership category. Credit union accounts have the same coverage from the NCUA. Some apps and fintechs hold your money at partner banks, so check which bank actually holds the deposits.
How is savings interest taxed?
As ordinary income, in the year it’s credited to your account, even if you never withdraw it. Your bank sends Form 1099-INT if you earn $10 or more. Enter your tax rate under More options to see what you keep after federal and state tax.
How often is interest paid on a savings account?
Most banks calculate interest daily and credit it monthly, so it compounds as it goes. You don’t need the details to compare accounts: the APY already includes compounding, so a higher APY always means more interest on the same balance over a year.
Is 3.7% APY good for a savings account?
Yes, compared with the 0.37% national average in September 2026, it’s about ten times as much. Top online accounts tend to pay close to the Federal Reserve’s policy rate, which was about 3.6% then. Rates are variable, so compare again every few months.
The formula is on the methodology page. To turn a quoted interest rate into an APY, use the APY calculator.
Sources
- FDIC, National Rates and Rate Caps, September 2026: the national average savings rate (0.37%, $2,500 tier) and the effective federal funds rate (3.63%).
- Consumer Financial Protection Bureau, Regulation DD (Truth in Savings), Appendix A: Annual Percentage Yield Calculation.
- FDIC, Deposit Insurance at a Glance.
- IRS, Topic no. 403: Interest received.