Rates updated · Based on 64 tracked banks
How much interest will you earn in a high-yield savings account?
At today's top rate of 4.10%, $50,000 earns about $52,052 in year one — versus about $50,190 at a typical big-bank rate of 0.38%. Over 5 years the difference compounds to roughly $10,178. (Rates updated September 16, 2026.)
Best Available
4.10%
APY
Big-Bank Median
0.38%
APY
Year-1 Interest
$2,052
on $50k at top rate
5-Year Gap
$10,178
compound advantage
Personalize your projection
Illustrative — not tax advice
Year-1 balance
$52,052
at 4.10%
Big-bank yr-1
$50,190
at 0.38%
5yr balance
$61,135
5yr gap
+$10,178
vs big-bank
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Year-by-year breakdown
| Year | Top rate (4.10%) | Big-bank (0.38%) | Gap |
|---|---|---|---|
| Year 1 | $52,052 | $50,190 | +$1,862 |
| Year 2 | $54,188 | $50,381 | +$3,807 |
| Year 3 | $56,411 | $50,572 | +$5,839 |
| Year 4 | $58,726 | $50,764 | +$7,961 |
| Year 5 | $61,135 | $50,957 | +$10,178 |
Frequently asked questions
How much interest will I earn on $50,000 in a high-yield savings account?▾
At today's top available rate of 4.10%, $50,000 earns about $2,052 in year one — bringing the balance to $52,052. After five years with compounding, it grows to about $61,135, roughly $10,178 more than the same balance at the big-bank median rate of 0.38%.
Does compounding make a big difference in a savings account?▾
Yes — the gap compounds every year. At the current spread (4.10% vs 0.38%), $50,000 at the top rate grows about $10,178 more than at the big-bank median over five years. The difference is small in year one but widens meaningfully by year five because you earn interest on an ever-larger base.
Is high-yield savings interest taxable?▾
Yes. Interest earned in a high-yield savings account is taxed as ordinary income in the year it is earned, regardless of whether you withdraw it. This calculator shows pre-tax growth by default. The after-tax toggle shows an illustrative estimate — it is not tax advice. Consult a qualified tax professional for guidance specific to your situation.
Is a high-yield savings account safe?▾
If the account is at an FDIC-insured bank, deposits are protected up to the federal limit per depositor, per bank — the same protection offered by traditional big banks. You can verify any institution's FDIC status at https://www.switchwize.com/fdic-check.
How this is calculated
Monthly rate: i = (1 + APY)^(1/12) − 1. Future value of the starting balance: FV = P × (1+i)^n, which is equivalent to P × (1+APY)^years for lump-sum savings. The optional monthly contribution is added as an end-of-month annuity.
topAvailableAPY is the average of the top-3 rates across the 64 banks SwitchWize actively tracks — the same figure shown on the Bank Gap Index and individual bank pages. bigBankMedianAPY is the FDIC national average savings deposit rate (mirrored via FRED series SNDR).
Source: S&P Capital IQ Pro; SNL Financial Data. Calculations: FDIC. Reflects the $2,500 product tier for savings and interest checking accounts.
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