Bank Gap by State

The Bank Gap in West Virginia

West Virginia has one of the lowest costs of living in the country, which keeps the dollar stakes of the Bank Gap modest even though the state's top tax rate on savings interest, recently cut, still applies in full.

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

WV tax on interest

5.12%

top marginal rate

Before WV tax

$1,005/yr

on a $25,000 balance

After WV 5.12% tax

$954/yr

recoverable by switching

On a $25,000 balance, the gap is about $1,005 a year before tax. After West Virginia's 5.12% top income-tax rate on the additional interest, you keep about $954. Because Treasury interest is exempt from West Virginia income tax, routing that cash through a state-tax-exempt Treasury vehicle can recover most of the difference.

Estimated Bank Gap by balance

Estimated annual Bank Gap by balance at 0.38% current APY versus 4.40% better-fit APY, before and after WV state income tax
Balance	Current earnings	Better-fit earnings	Estimated Bank Gap	After WV tax
$5,000	$19	$220	$201	$191
$10,000	$38	$440	$402	$381
$25,000	$95	$1,100	$1,005	$954
$50,000	$190	$2,200	$2,010	$1,907
$100,000	$380	$4,400	$4,020	$3,814

Estimates over 12 months at 0.38% current APY and 4.40% better-fit APY. The "After WV tax" column applies WV's 5.12% top income-tax rate to the additional interest; federal tax applies on top and is not shown. Example only — your result depends on your balance, rates, and time horizon.

Why West Virginia changes the math

West Virginia's top rate on interest income is 5.12%, down from higher levels after a recent state tax cut. Treasury interest remains exempt from that tax, giving higher-income West Virginia savers a modest after-tax edge from T-Bills.

One of the lowest costs of living in the country keeps typical West Virginia emergency-fund balances modest, though the full percentage-point Bank Gap still applies to whatever that balance is.

Cost of living in West Virginia is the lowest in the country, 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 West Virginia taxes savings interest but not Treasury interest, the highest after-tax yield is not always the highest headline APY. Run your tax profile through the short-term savings tool to see whether a Treasury bill or government money market fund beats a taxable account for you.

Open the short-term savings tool

Frequently asked questions

Does West Virginia tax high-yield savings account interest?

Yes. West Virginia treats savings interest as taxable income, with a top rate of 5.12%. Interest from U.S. Treasury bills and the Treasury portion of a government money market fund is generally exempt from West Virginia income tax, which can change the after-tax winner for higher earners.

Is a high-yield savings account worth it in West Virginia?

Yes. Even after West Virginia state tax, moving cash from a national-average account to a top high-yield savings account still leaves you with substantially more interest. The Bank Gap is far larger than the state-tax drag on the additional interest.

Are T-Bills better than a HYSA for West Virginia savers?

They can be for higher earners. Because Treasury interest is exempt from West Virginia income tax, a T-Bill or government money market fund can deliver a higher after-tax yield than a fully taxable savings account at a similar headline rate. The short-term savings calculator computes the breakeven for your exact tax situation.

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.