High-Yield Savings Calculator
Enter your savings balance, your current bank's APY, and a high-yield rate to see exactly how much more you could earn, and get a Worth It Score on whether switching is worth the effort.
Starts at 0.37%, the FDIC national savings rate in its September 2026 table (published Sept 21, 2026). FDIC
3.80% is an example rate, not a quote. Enter the APY from the bank's own rate page.
Sources & Methodology
- FDIC National Rates and Rate Caps, national average deposit rates for savings, CDs and money market accounts, published monthly (savings: 0.37%, September 2026 table, published Sept 21, 2026)
- FDIC Deposit Insurance, deposits insured to at least $250,000 at each FDIC-insured bank
- Federal Reserve, Open Market Operations, federal funds target range changes 2023-2026
- Federal Reserve press release, April 24, 2020, deleting Regulation D's six-per-month savings transfer limit
- National Savings Deposit Rate (FRED / FDIC), historical national average savings rate series
- Federal Funds Effective Rate (FRED), the Fed rate that directly drives HYSA APY movements
By Sean Baldwin · Last updated
The Verdict
Worth it if: your money currently sits in a traditional account earning under about 0.5% and a high-yield account beats it by at least 0.5 percentage points, the extra interest is effectively free money at identical risk since balances are FDIC-insured up to $250,000.
Not worth it if: you are already in a competitive account and the rate gap is under 0.5 percentage points, the extra earnings are marginal, or you rely on frequent branch and cash access that an online-only bank cannot provide.
Break-even threshold: the switch pays off the moment the rate gap clears 0.5 percentage points; as an illustration, on a $10,000 balance, moving from the FDIC national average of 0.37% to a 4% APY is $363 more per year, with no fees to recoup.
Frequently Asked Questions
Is a high-yield savings account worth it?
For most money sitting in an ordinary savings account, yes. The FDIC national average savings rate was 0.37% in its September 2026 table, which is $37 a year on a $10,000 balance. As an illustration, the same $10,000 at a 3.80% APY earns $380, a gap of $343 a year with no fees. Deposits are insured to at least $250,000 at each FDIC-insured bank, online or not.
What APY should a high-yield savings account pay right now?
No official source publishes an average for online banks, so treat any single "good rate" with caution, including ours. The benchmark that does exist is the FDIC national average savings rate: 0.37% in its September 2026 table, published September 21, 2026. Savings rates are variable and move with the federal funds rate, which the Fed raised 0.25 points to 3.75–4.00% on September 17, 2026, so any specific number goes stale quickly. Confirm the exact APY on the bank's own site the day you open the account rather than trusting a figure quoted anywhere else.
Is there a downside to switching to a high-yield savings account?
Not really for most people. The main trade-offs are: online-only access (no physical branches), transfers to your main bank are not instant, so check the bank's stated transfer times, and the rate is variable so it can drop. None of these outweigh the higher interest earnings for a typical savings account holder.
How much money do I need to open a high-yield savings account?
Most competitive online banks have no minimum balance requirement and no monthly maintenance fee, so you can open with a few dollars and still earn the full advertised APY. Watch for two things that quietly cut your return: tiered rates that pay the headline number only above a certain balance, and introductory rates that drop after a few months. If an account requires a minimum deposit or a direct deposit to earn the top rate, that condition should be disclosed on the rate page itself.
Is my money safe in a high-yield savings account?
Yes. Accounts at FDIC-insured banks are covered up to $250,000 per depositor, per bank, per ownership category. That protection is identical whether the bank has branches or operates entirely online, so an online savings account carries no more risk than one at a large national bank. Verify the bank is FDIC insured using the FDIC BankFind tool before depositing, particularly with fintech apps that route deposits to a partner bank rather than holding them directly.
Can I use a high-yield savings account as my main account?
Most people use it alongside their primary checking account, not as a replacement. You transfer money you don't need immediately into the high-yield account to earn more, and transfer it back when needed. Waiting for transfers to settle is the only real inconvenience.
How much interest does $10,000 earn in a high-yield savings account?
It depends entirely on the APY. As an illustration, at 3.80% APY, $10,000 earns $380 over a full year if you leave the interest in, about $31.67 a month on average. APY already includes compounding, so the year's interest is simply the balance times the APY. At the FDIC national average savings rate of 0.37% (September 2026 table), the same $10,000 earns $37. The gap is $343 a year, at the same FDIC insurance.
How is high-yield savings interest calculated?
Many high-yield accounts compound daily and credit interest monthly; the account disclosure says which. The bank applies a daily rate to your balance, and each day's interest is added so the next day earns slightly more. The APY is the result of a full year of that compounding: a 3.80% APY means $10,000 becomes $10,380 after twelve months with no deposits or withdrawals. That is why you should compare APY against APY, never against a nominal interest rate.
Are high-yield savings rates going down in 2026?
The Fed's latest move was up, not down. High-yield savings rates track the federal funds rate. According to the Federal Reserve's open market operations page, the Fed set its target range at 5.25–5.50% on July 27, 2023, cut it three times in 2024 and three more times in 2025 to 3.50–3.75%, then raised it 0.25 points to 3.75–4.00% on September 17, 2026. Because savings rates are variable rather than locked, no account can guarantee a future APY. If you want a fixed rate for a defined period, a CD trades away access to your money in exchange for locking the rate in.
Why most savings accounts pay almost nothing
The FDIC national average savings rate was 0.37% in its September 2026 table (published September 21, 2026), which is $37 a year on a $10,000 balance. High-yield savings accounts at online banks can pay far more because they run without the cost of physical branches and compete for deposits. The FDIC insures deposits to at least $250,000 at each insured bank either way, so the risk is the same. The difference is purely interest earnings.
How to calculate what you're leaving on the table
Take your savings balance and multiply by the APY difference as a decimal. As an illustration, a $20,000 balance moving from the FDIC national average of 0.37% to a 3.80% APY earns an extra 3.43% a year, that's $686 a year, or about $57 a month, in extra interest. Leave the interest in for five years and the gap grows to about $3,727. The calculation is simple, but most people never run it. That's why this calculator exists.
What to watch out for with high-yield savings accounts
Rates are variable, they move with the federal funds rate. When the Fed cuts, your APY can drop. The Fed cut its target range three times in 2024 and three times in 2025, then raised it on September 17, 2026, so the direction changes. The accounts are almost always online-only, meaning transfers to your main bank are not instant. And some accounts still limit withdrawals: the Federal Reserve deleted Regulation D's six-per-month limit on savings transfers on April 24, 2020, but a bank can keep a limit of its own, so read the account terms. None of these are dealbreakers for a savings account, but they're worth knowing before you move your emergency fund.
How to compare high-yield savings options in 2026
Established online banks tend to pay similar rates, so the spread between the best and fifth-best account is usually small on a typical balance. Rank options on the things that persist rather than the headline rate: no monthly fee, no minimum to earn the top APY, FDIC insurance held directly, a transfer process that settles in one to three business days, and a track record of staying competitive when the Fed cuts rather than quietly falling behind. The account you will actually finish opening beats the one paying slightly more that you leave half-signed-up. The costly mistake is not picking the wrong high-yield account, it is staying in a near-zero account while comparing.
How high-yield savings interest is actually calculated
APY already accounts for compounding, which is what separates it from a plain interest rate. Many high-yield savings accounts compound daily and pay out monthly: the bank applies a daily rate to your balance, and each day's interest joins the balance so the following day earns slightly more. The APY is the result of a full year of that. On a $10,000 balance at 3.80% APY, that is about $1.02 on the first day, about $31.13 in the first month, and exactly $380 over twelve months with no deposits or withdrawals. A common mistake is to divide the APY by 12 and compound it again, which counts the compounding twice and shows about $387 instead of $380. When you compare two accounts, compare APY to APY, never APY to a nominal rate. If a bank advertises only an interest rate without an APY, ask for the APY so you can compare accounts fairly.
How long it takes to reach a savings goal at high-yield rates
Interest helps, but at savings-account rates your contributions do the heavy lifting, and understanding that split prevents a common planning mistake. As an illustration, saving $500 at the end of each month at the FDIC national average of 0.37% reaches $10,000 in 20 months. At a 3.80% APY it also takes 20 months; you finish with about $10,301 instead of $10,029, so interest added a few hundred dollars but no time. Push the horizon out and the picture changes: reaching $50,000 at $500 a month takes 99 months at 0.37% but 88 months at 3.80%, eleven months sooner. The pattern is that rate matters more as balance and time grow, while contributions dominate early. The practical takeaway is to open the high-yield account because the extra interest costs you nothing, but do not expect it to rescue a savings plan that is short on monthly contributions. For goals more than five years out, compare a savings account against other options before committing to it.
Related Calculators
Further Reading
How We Calculate Your Score
The Worth It Score is based on your extra annual earnings from switching to a high-yield account, the real dollar gain over your current rate. If the rate gap between your current account and the HYSA is less than 0.5 percentage points, the score is capped at 25, since the benefit is marginal.
- · Extra annual earnings drive the score on a scale from low (near 0) to high (near 100)
- · Rate gap under 0.5 percentage points: score capped at 25, regardless of balance
High-yield savings accounts are FDIC-insured up to $250,000. Rates are variable and can change. The score reflects today's rate differential, if rates drop significantly, revisit the calculation.
How to Cite This Calculator
If you reference this calculator in an article, blog post, or research, use one of the formats below. The Worth It Score methodology is fully documented and independently verifiable.
APA
Baldwin, S. (2026). High-Yield Savings Calculator: See Your Exact Dollar Gain (2026). Worth It Calculators. https://worthitcalculators.com/high-yield-savings/
MLA
Baldwin, Sean. "High-Yield Savings Calculator: See Your Exact Dollar Gain (2026)." Worth It Calculators, October 14, 2026, https://worthitcalculators.com/high-yield-savings/.
Plain text / web
Source: High-Yield Savings Calculator: See Your Exact Dollar Gain (2026), Worth It Calculators (https://worthitcalculators.com/high-yield-savings/)
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