Where to park cash this week, after state tax

Treasury bills at auction vs Treasury/government money funds, T-bill ETFs and broker cash, ranked for every state. Updated on the weekly auction cycle.

13-week bill, last auction

4.195%

Oct 19, 2026 · state-tax-free

Highest yield tracked

4.62%

52-wk T-bill · Sep 29, 2026

Best daily-liquid fund, CA top bracket

4.01%

TFLO after 13.3% state tax

Best daily-liquid fund, no-tax states

4.01%

TFLO

This week's bill auctions (week of Oct 19)

High rates from completed auctions; investment rate is the bond-equivalent yield used for ranking.

Auction	Term	High investment rate	High discount rate	Bid-to-cover	Offering	CUSIP	Source
Oct 19, 2026	13-Week	4.195%	4.095%	2.77	$95B	912797TM9	TreasuryDirect auction results API (Fiscal Data not yet updated)
Oct 19, 2026	26-Week	4.372%	4.220%	2.84	$82B	912797WV5	TreasuryDirect auction results API (Fiscal Data not yet updated)
Oct 20, 2026	6-Week	4.049%	3.975%	2.74	$95B	912797VA2	TreasuryDirect auction results API (Fiscal Data not yet updated)
Oct 21, 2026	17-Week	pending			$75B	912797XA0	Fiscal Data upcoming
Oct 22, 2026	4-Week	pending			$110B	912797VY0	Fiscal Data upcoming
Oct 22, 2026	8-Week	pending			$105B	912797WG8	Fiscal Data upcoming

Next on the calendar: Oct 26, 2026: 26-WeekOct 26, 2026: 13-WeekOct 27, 2026: 6-WeekOct 27, 2026: 52-Week

Latest auction result by term

Term	Last auction high investment rate	Auction date / source	Secondary market, coupon-equivalent (Oct 20, 2026)
4-Week	4.068%	Oct 15, 2026	4.00%
6-Week	4.049%	Oct 20, 2026	4.05%
8-Week	4.132%	Oct 15, 2026	4.08%
13-Week	4.195%	Oct 19, 2026	4.18%
17-Week	4.313%	Oct 14, 2026	4.27%
26-Week	4.372%	Oct 19, 2026	4.37%
52-Week	4.616%	Sep 29, 2026	4.48%

Secondary-market column: U.S. Treasury Daily Treasury Bill Rates. FRED (discount basis): DTB4WK 3.94% (Oct 19, 2026) · DTB3 4.10% (Oct 19, 2026) · DTB6 4.23% (Oct 19, 2026) · DTB1YR 4.27% (Oct 19, 2026)

National ranking (before state tax)

Headline yields. The state-exempt share decides how much of that you keep in a taxing state — pick your state below.

#	Product	Yield	State-exempt share (2025)	Meets CA/CT/NY 50% test	Yield type / as of
1	52-wk T-billT-bill 52-Week Treasury bill (latest auction)	4.62%	100.0%	yes	auction high investment rate (bond-equivalent) Sep 29, 2026
2	26-wk T-billT-bill 26-Week Treasury bill (latest auction)	4.37%	100.0%	yes	auction high investment rate (bond-equivalent) Oct 19, 2026
3	17-wk T-billT-bill 17-Week Treasury bill (latest auction)	4.31%	100.0%	yes	auction high investment rate (bond-equivalent) Oct 14, 2026
4	13-wk T-billT-bill 13-Week Treasury bill (latest auction)	4.20%	100.0%	yes	auction high investment rate (bond-equivalent) Oct 19, 2026
5	8-wk T-billT-bill 8-Week Treasury bill (latest auction)	4.13%	100.0%	yes	auction high investment rate (bond-equivalent) Oct 15, 2026
6	4-wk T-billT-bill 4-Week Treasury bill (latest auction)	4.07%	100.0%	yes	auction high investment rate (bond-equivalent) Oct 15, 2026
7	6-wk T-billT-bill 6-Week Treasury bill (latest auction)	4.05%	100.0%	yes	auction high investment rate (bond-equivalent) Oct 20, 2026
8	TFLOETF iShares Treasury Floating Rate Bond ETF	4.01%	99.2%	yes	30-day SEC yield Oct 19, 2026
9	XBILETF F/m US Treasury 6 Month Bill ETF	4.00%	100.0%	not stated	30-day SEC yield Sep 30, 2026
10	USFRETF WisdomTree Floating Rate Treasury Fund	3.98%	—	not stated	30-day SEC yield Oct 19, 2026
11	VUSXXMoney fund Vanguard Treasury Money Market Fund	3.90%	100.0%	yes	7-day SEC yield Oct 19, 2026
12	SHVETF iShares 0-1 Year Treasury Bond ETF	3.85%	89.8%	yes	30-day SEC yield Oct 19, 2026
13	BILSETF SPDR Bloomberg 3-12 Month T-Bill ETF	3.83%	96.9%	not stated	30-day SEC yield Oct 19, 2026
14	VMFXXMoney fund Vanguard Federal Money Market Fund (settlement fund)	3.83%	66.6%	yes	7-day SEC yield Oct 19, 2026
15	TBILETF F/m US Treasury 3 Month Bill ETF	3.81%	100.0%	not stated	30-day SEC yield Sep 30, 2026
16	VBILETF Vanguard 0-3 Month Treasury Bill ETF	3.77%	100.0%	yes	30-day SEC yield Oct 16, 2026
17	SGOVETF iShares 0-3 Month Treasury Bond ETF	3.75%	95.1%	yes	30-day SEC yield Oct 19, 2026
18	BILETF SPDR Bloomberg 1-3 Month T-Bill ETF	3.74%	97.3%	not stated	30-day SEC yield Oct 19, 2026
19	CLIPETF Global X 1-3 Month T-Bill ETF	3.70%	99.7%	not stated	30-day SEC yield Oct 20, 2026
20	SNSXXMoney fund Schwab U.S. Treasury Money Fund - Investor Shares	3.62%	100.0%	yes	7-day (with waivers) yield Oct 20, 2026 (manual capture)
21	SNOXXMoney fund Schwab Treasury Obligations Money Fund - Investor Shares	3.62%	31.3%	no	7-day (with waivers) yield Oct 20, 2026 (manual capture)
22	FDRXXMoney fund Fidelity Government Cash Reserves (core position)	3.58%	52.2%	no	7-day yield Oct 19, 2026
23	FDLXXMoney fund Fidelity Treasury Only Money Market Fund	3.56%	98.7%	yes	7-day yield Oct 19, 2026
24	FZFXXMoney fund Fidelity Treasury Money Market Fund (core position)	3.54%	61.5%	no	7-day yield Oct 19, 2026
25	SPAXXMoney fund Fidelity Government Money Market Fund (core position)	3.51%	50.9%	no	7-day yield Oct 19, 2026
26	Schwab cashBroker cash Schwab Intelligent Portfolios Sweep Program (robo accounts only)	3.47%	0.0%	n/a	APY Oct 1, 2026
27	Interactive Brokers cashBroker cash Interactive Brokers Pro: interest on USD cash (balances above $10k)	3.38%	0.0%	n/a	rate Oct 20, 2026
28	Merrill cashBroker cash Merrill Edge / Merrill Lynch Bank Deposit Program (Tier 1, < $250k)	0.01%	0.0%	n/a	APY Oct 19, 2026

AFFILIATE SLOT — placeholder (home-below-ranking)
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Pick your state

Best daily-liquid fund/ETF after the state's top marginal rate (T-bills are always 100% state-exempt; tap a state for the full table and brackets).