Photo by Atlantic Money on Unsplash
0.38%. That is what the average American earns on their savings account as of July 5, 2026, according to Federal Reserve H.15 release data. Meanwhile, the best high-yield savings accounts are currently paying 5.00% APY — more than thirteen times that figure. On a $20,000 emergency fund, the math works out to a $924 difference per year. That is not a marginal optimization. It is free money sitting uncollected in the wrong account.
According to analysis published this week by 24/7 Wall St. and Forbes Advisor, three short-term cash instruments are competing for emergency fund dollars right now: high-yield savings accounts (HYSAs), certificates of deposit (CDs), and Treasury bills (T-bills). Each has a distinct yield, liquidity profile, and tax treatment. For most households, the right answer is not one of the three — it is a combination. But the combination depends heavily on where you live.
What's on the Table
Here is where each option stands as of early July 2026.
High-yield savings accounts top out at 5.00% APY according to Forbes Advisor's current tracking — though it is worth flagging a real source divergence here: Bankrate and NerdWallet track maximum HYSA rates in the 4.15%–4.50% range, a gap that likely reflects different institutions or promotional versus standard rates. More consistently accessible options include CIT Bank Platinum Savings at 4.50% APY (with a $5,000 minimum balance), Marcus by Goldman Sachs at 4.40% APY (no minimum), and Climate First Bank at 4.01% APY. The key feature: no penalty for withdrawals, and rates adjust with the Federal Reserve.
Certificates of deposit present a more complicated picture. The best available CD rates reach 4.30% APY on 17-month and 49-month terms from Connexus Credit Union and NASA Federal Credit Union, per Bankrate. Worth naming directly: Bankrate's headline advertises "CD rates up to 7.50%," but the article text clarifies that realistic best rates sit at 4.30% APY — a significant gap that has confused many savers researching their options. The FDIC national average for a 12-month CD is only 1.65% as of June 2026, which means the difference between shopping around and settling for your local bank's default rate is enormous. The downside is inflexibility: the typical early withdrawal penalty on a 6-month CD runs about 90 days of interest, which on a $20,000 CD at 3.50% comes to roughly $175.
Treasury bills, purchased directly through TreasuryDirect.gov or most brokerages, yielded 3.65% on 4-week bills, 3.78% on 13-week bills, and 3.96% on 26-week bills as of July 2, 2026, per 24/7 Wall St.'s analysis of Federal Reserve H.15 data. On gross yield, T-bills trail top HYSAs by a full percentage point or more. But their state income tax exemption changes the effective yield calculation for anyone earning income in a high-tax state — and that changes the winner.
Side-by-Side: How They Differ
On headline yield, HYSAs win. On liquidity, HYSAs win again. So why are T-bills worth a second look?
Chart: Best-in-class yields as of July 2, 2026. HYSA national average: 0.38%. 12-month CD national average: 1.65%. Sources: Forbes Advisor, Bankrate, 24/7 Wall St. / Federal Reserve H.15 release.
The comparison breaks down across three variables: liquidity, rate certainty, and state taxes.
On liquidity: HYSAs allow penalty-free withdrawals at any time. T-bills have a maturity window (4 to 26 weeks) but can be sold on the secondary market before maturity with minimal friction. CDs impose a hard early withdrawal penalty. As 24/7 Wall St. put it in its July analysis, emergencies do not schedule themselves around CD maturity dates — and paying a penalty on top of an unexpected expense compounds an already stressful situation.
On rate certainty: CDs lock your rate, which is either an advantage or a liability depending on what the Fed does next. The Federal Reserve held its target range at 3.50%–3.75% at its June 17, 2026 meeting after three rate cuts in late 2025. Futures markets are currently pricing a path that rises toward approximately 3.8% by October 2026 and approaches 4% around year-end — suggesting rates may climb, not fall. This same rate trajectory, as Smart Credit AI recently covered, is already pushing mortgage rates higher. For HYSA and T-bill holders, rising rates mean rising yields. For CD holders locked into today's rates, a Fed tightening cycle means opportunity cost.
On FDIC insurance: both HYSAs and CDs at insured banks are protected up to $250,000 per ownership category. T-bills carry no deposit insurance but are direct obligations of the U.S. government — a distinction without a practical difference for most emergency fund savers.
Photo by Library of Congress on Unsplash
The Tax Angle That Changes the Winner
This is the calculation most comparison articles skip, and it is the one that matters most for anyone in California, New York, New Jersey, or another state with a high marginal income tax rate.
Treasury interest is exempt from state and local income taxes under federal law. Per Charles Schwab's published guidance on the mechanics, this exemption is automatic: Treasury interest is reported separately in Box 3 of your 1099-INT form, and standard tax software (TurboTax, H&R Block, FreeTaxUSA) applies the exemption without any special action on your part. HYSA and CD interest, by contrast, is taxed at your full combined federal and state rate.
Run the after-tax math for a California resident in the top bracket, where the state marginal rate reaches double digits: a T-bill yielding 3.96% gross keeps that entire 3.96% state-tax-free. A HYSA paying 4.40% gross surrenders a meaningful portion to California's income tax. Depending on your tax bracket, the after-tax yield on the T-bill can exceed the after-tax yield on the nominally higher-paying savings account. As 24/7 Wall St. noted in its analysis, in high-tax states Treasuries can quietly outperform even a top-tier savings account on an after-tax basis. For residents of Texas, Florida, or other zero-income-tax states, the exemption is irrelevant — the 5.00% HYSA wins after-tax without any contest.
Fintech platforms and robo-advisors are increasingly deploying AI algorithms that calculate this after-tax yield automatically, factoring in state residency, marginal bracket, and liquidity timeline. Sophisticated personal finance management that once required a paid tax advisor is becoming an automated feature in consumer banking apps — making T-bill laddering (buying a sequence of short-term bills that mature at staggered intervals to preserve liquidity) accessible to ordinary savers, not just high-net-worth clients.
Which Fits Your Situation
Financial advisors recommend three to six months of essential living expenses for most households. For those with variable income — freelancers, gig workers, commission-based roles — six to twelve months is the more appropriate target for sound financial planning. Here is how to deploy that capital across the three instruments.
The national average savings rate of 0.38% means most Americans are already losing ground to inflation on their emergency fund. Moving to a HYSA paying 4.00%–5.00% APY requires opening a new account, which typically takes ten minutes online. Marcus by Goldman Sachs (4.40% APY, no minimum) and Climate First Bank (4.01% APY) require no large opening balance. Forbes Advisor and Bankrate both track current rates daily — check both before choosing, since the two outlets have recently reported meaningfully different top rates, and the gap may reflect institutions that are easier or harder to access based on your location. This is your liquid, zero-friction emergency tier.
For the portion of your emergency fund beyond the immediate buffer, a 4-week or 13-week T-bill ladder preserves most of your liquidity (money returns every 28 days) while capturing the state tax exemption. As of July 2, 2026, 26-week T-bills yield 3.96% — exempt from state and local income taxes. Do the after-tax comparison before assuming the higher-gross HYSA wins. TreasuryDirect.gov handles direct purchases with no fee; most major brokerages also allow T-bill purchases in standard taxable accounts. For residents of no-income-tax states, skip this step — your top HYSA wins after-tax by a wide enough margin that the additional setup is not worth it.
If you have accumulated more than your six-month emergency target and want to put the surplus to work at a locked rate, the best available CD at 4.30% APY on a 17-month term (per Bankrate) is a reasonable option for funds you are genuinely certain you will not need. Keep this as a third tier, never a primary layer. The $175 early withdrawal penalty on a $20,000 CD is not catastrophic in isolation — but emergencies arrive when other things are already going wrong, and adding a financial penalty on top of an unexpected expense is a problem that is completely avoidable with proper tiering.
Frequently Asked Questions
Is a high-yield savings account or CD better for an emergency fund?
For the core emergency buffer, a HYSA is the better choice. HYSAs allow penalty-free withdrawals at any time, while CDs charge approximately 90 days of interest for early withdrawal — roughly $175 on a $20,000 CD at 3.50%. The best HYSA rates (up to 5.00% APY as of July 5, 2026) also exceed the national average CD rate for 12-month terms (1.65% as of June 2026) by a wide margin. CDs are worth considering only for savings beyond your emergency baseline — funds you are confident you will not need for a year or more.
Are Treasury bills good for emergency funds?
Yes, particularly for residents of high-income-tax states. T-bills require slightly more setup than a standard bank account (purchased through TreasuryDirect.gov or a brokerage), and a 4-week bill ties up funds for roughly 28 days. The trade-off is complete exemption from state and local income taxes on earned interest. As of July 2, 2026, 26-week T-bills yield 3.96% — fully state-tax-exempt. In states like California or New York, this can net more after tax than a HYSA paying 4.40% or even 5.00% gross, depending on your marginal bracket.
How much should I keep in my emergency fund?
Three to six months of essential living expenses is the standard recommendation for most households. Essential expenses mean your fixed costs — rent or mortgage, utilities, groceries, transportation, and insurance premiums — not subscriptions, dining out, or discretionary spending. For people with variable income (freelancers, gig workers, commission-based salespeople), six to twelve months is the more appropriate target, since income gaps can be lengthy and hard to predict. A household spending $4,000 per month on essentials should target between $12,000 and $24,000 in their emergency fund.
Do Treasury bills have state tax exemption?
Yes. Interest earned on U.S. Treasury obligations — including T-bills, T-notes, and T-bonds — is exempt from state and local income taxes under federal law. According to Charles Schwab's published guidance, this exemption is automatic: Treasury interest appears in Box 3 of your 1099-INT, and major tax software programs recognize and apply the exemption without any special input required. The exemption is most valuable for residents of states with top marginal income tax rates above roughly 8–9%, where the after-tax yield on T-bills can exceed a higher-headline HYSA.
What is the early withdrawal penalty on a CD?
It varies by institution and term length, but a typical 6-month CD charges approximately 90 days of interest as an early withdrawal penalty. On a $20,000 CD earning 3.50% APY, that penalty works out to roughly $175. Longer-term CDs — 12-month and 24-month terms — generally carry steeper penalties, often 150 to 180 days of interest. Always read the institution's specific disclosure before committing funds you might need on short notice. This predictable penalty is the central reason emergency fund money belongs in a HYSA or T-bill ladder, not in a CD.
Bottom Line
On raw yield, the top HYSA at 5.00% APY outpaces best-in-class CDs (4.30%) and 26-week T-bills (3.96%) as of July 2026. But raw yield is not the number that lands in your bank account — after-tax yield is, and the state tax exemption on Treasuries closes that gap faster than most people expect. In my analysis, the most practical emergency fund structure for mid-2026 is a two-bucket approach: one to two months of expenses in a top HYSA for frictionless access, and the remaining months in rolling T-bills for anyone paying meaningful state income tax. CDs belong at the margins — a sensible lock-in vehicle for surplus savings, never a substitute for a liquid emergency cushion.
And whatever you do: stop leaving emergency fund dollars in a standard account earning the national average of 0.38% APY. On a $20,000 fund, that is the difference between $76 a year and $1,000. The $924 gap does not require a financial planning certification to capture — just a browser tab and ten minutes of attention.
Disclaimer: This article is editorial commentary for informational and educational purposes only and does not constitute financial advice. Rates cited reflect publicly reported data as of the dates specified and are subject to change without notice. Verify current rates directly with financial institutions before making any decision. Research based on publicly available sources current as of July 5, 2026.