If your emergency fund sits in a savings account, here’s the uncomfortable number from this week’s inflation report. In the 22% tax bracket, your account has to pay 4.74% just to stand still.
Almost nothing does.
Where 4.74% comes from
Prices rose 3.7% over the 12 months through September, the Bureau of Labor Statistics said on October 14. That’s the bar your cash has to clear.
Your bank’s rate doesn’t clear it on its own, because the IRS takes a cut of the interest first. Savings interest is taxed like a paycheck. So the rate that keeps up with 3.7% after federal tax is 3.7% divided by what you keep.
In the 12% bracket, that’s 4.20%. In the 22% bracket, 4.74%. In the 24%, 4.87%. Live in a state with income tax and the bar goes higher still.
What $10,000 actually loses
Here’s a year on $10,000 in the 22% bracket, measured in what the money can buy. Rough numbers, ignoring compounding.
| Where the money sits | Rate | Buying power lost in a year |
|---|---|---|
| Average savings account (FDIC national rate) | 0.37% | about $341 |
| Ally or Capital One 360 savings | 3.10% | about $128 |
| Vio Bank savings | 4.01% | about $57 |
| Six-month Treasury bill (October 13 auction) | 4.351% | about $31 |
The average account loses more than ten times what the Treasury bill does. That’s the bank’s bet: that you won’t notice $341 leaking out quietly every year.
The T-bill also skips state income tax, which none of the savings accounts can say. In the 12% bracket it’s the only option on this list that actually comes out ahead, by about $13. We covered why bills win on tax in our T-bill versus savings breakdown.
Here’s the catch on 3.7%
It might not be your number. Gasoline is up 34.2% from a year ago and energy overall 20.4%. Strip out food and energy and prices rose 2.6%.
If you drive a lot, 3.7% probably understates your inflation. If you don’t, your break-even in the 22% bracket is closer to 3.33%, and a 4% account clears it.
Either way, the verdict on the 0.37% account doesn’t change. Parking your emergency fund there is dumb math.
The move
Log in and read your actual savings rate tonight. If it starts with a zero, move the money. A 3% to 4% online savings account is a one-time transfer, and our savings calculator shows what the gap is worth on your balance. Shop rates on our best savings page.
For cash you won’t touch for six months, compare the T-bill. It’s the closest thing to keeping up without locking money away.
If you want a product that tracks inflation by design, that’s an I bond. Treasury resets its inflation rate every May 1 and November 1 from the CPI. Read our I bond rundown before November 1, when the new rate posts.
Nothing on this list fully beats 3.7% after tax for most of you. The goal right now is to lose the least.
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Sources
- Consumer Price Index Summary, September 2026 (U.S. Bureau of Labor Statistics, October 14, 2026)
- National Rates and Rate Caps (Federal Deposit Insurance Corporation, last updated September 21, 2026)
- Ally Bank Online Savings Account (Ally Bank, rate correct as of October 14, 2026)
- Best high-yield savings accounts (Yahoo Finance, rates as of October 14, 2026)
- Vio Bank savings rate (SwitchWize, updated October 14, 2026)
- Capital One 360 savings rate (SwitchWize, updated October 14, 2026)
- Treasury bill auction results, October 2026 (U.S. Treasury Fiscal Data API)
- I bonds interest rates (TreasuryDirect)