Bank Gap by State

The Bank Gap in Florida

Florida has no state income tax, which simplifies the Bank Gap decision rather than complicating it. The national gap still applies, but the tax-driven trade-offs that matter in high-tax states largely fall away here.

Big-bank average0.38%

Best available4.40%

$1,005/yrlost on a $25k balance · 4.02 pp spread

Last reviewed August 7, 2026 · SwitchWize Research Desk

Best savings APY

4.40%

high-yield

National average

0.38%

big-bank avg

APY gap

4.02 pp

spread

FL tax on interest

None

no income tax

No state tax — full gap is yours

$1,005/yr

on a $25,000 balance

On a $25,000 balance, the gap is about $1,005 a year. Florida has no state income tax, so you keep the full amount.

Estimated Bank Gap by balance

Estimated annual Bank Gap by balance at 0.38% current APY versus 4.40% better-fit APY
Balance	Current earnings	Better-fit earnings	Estimated Bank Gap
$5,000	$19	$220	$201
$10,000	$38	$440	$402
$25,000	$95	$1,100	$1,005
$50,000	$190	$2,200	$2,010
$100,000	$380	$4,400	$4,020

Estimates over 12 months at 0.38% current APY and 4.40% better-fit APY. Example only — your result depends on your balance, rates, and time horizon.

Why Florida changes the math

Florida has no state income tax, so savings interest is taxed only at the federal level. That removes the state-tax advantage that makes Treasuries attractive elsewhere, which simplifies the choice: in Florida the strongest move is usually the highest-yielding FDIC-insured high-yield savings account, kept fully liquid.

Florida living costs sit near the national average across much of the state, so a standard three-to-six-month emergency fund applies. Whatever its size, leaving it at a national-average rate gives up the full Bank Gap.

Cost of living in Florida is near the national average in much of the state, though rising in coastal metros, which shapes how large an emergency fund needs to be and therefore how many dollars the Bank Gap quietly costs on idle cash.

After-tax tip

Because Florida has no state income tax, the Treasury state-tax advantage does not apply. The simplest high-value move is to put liquid cash in the highest-yielding FDIC-insured savings account.

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Frequently asked questions

Does Florida tax high-yield savings account interest?

No. Florida has no state income tax, so savings account interest is taxed only at the federal level. There is no state tax drag on the extra interest you earn by switching to a better account.

Is a high-yield savings account worth it in Florida?

Yes. With no state income tax, the after-tax case is simple: moving cash from a national-average account to a top high-yield savings account keeps more in your pocket, and there is no state-tax wrinkle to weigh.

Are T-Bills better than a HYSA for Florida savers?

Usually not on tax grounds. The main edge T-Bills have elsewhere is exemption from state income tax, and Florida has none. For most Florida savers the highest-yielding FDIC-insured savings account is the cleaner choice for liquid cash.

Your personal Bank Gap

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Educational information, not tax or financial advice. State tax rules are summarized at a high level and depend on your full situation. Rates are illustrative of current market conditions and should be confirmed with the provider. Confirm tax treatment with a qualified professional.