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US Treasury bills

US bills are the one market on GetTbill with verified conventions and simulated trading. All rates and auction results below come from official publications and are end of day, not live prices.

Browse every US billOpen the calculator
Issuer
U.S. Department of the Treasury
Quote basis
Bank discount, actual/360
Regular terms
4, 6, 8, 13, 17, 26 and 52 weeks
Minimum and increment
100 USD and 100 USD
Secondary settlement
One business day after trade
Convention check
Verified against published auction results in the test suite

Official curve

US Treasury bill curve

Official end-of-day rates. Observed Nov 5, 2026.

Delayed official
3.80%3.90%4.00%4.10%4.20%4.30%4w8w13w17w26w52w
  • Bank discount rate
  • Coupon equivalent
Official US Treasury bill rates observed 2026-11-05
TenorDiscountCoupon eq.
4-week3.89%3.96%
6-week3.91%3.98%
8-week3.98%4.06%
13-week4.00%4.10%
17-week4.05%4.16%
26-week4.08%4.22%
52-week4.09%4.28%
Source: U.S. Treasury daily rates(opens in a new tab)Retrieved Nov 6, 2026, 04:12 UTC

Rate history

13w bill rate

Daily bank discount rate, in percent

3.40%3.60%3.80%4.00%4.20%Nov 2025Dec 2025Feb 2026Apr 2026Jun 2026Aug 2026Nov 2026

Delayed officialLast observation Nov 5, 2026Source: U.S. Treasury daily ratesRetrieved Nov 6, 2026, 04:12 UTC

The history above follows a tenor over time: it is the rate on whichever bill was benchmark on each date. It is not the price history of any single bill, which is not available from public sources.

Recent auction results

Official published results. The high rate is the rate at which every successful bidder was filled.

Recent US Treasury bill auction results
TermCUSIPAuction dateHigh rateInvestment ratePrice per 100Bid-to-coverOfferingMaturity
4-Week912797WE3Nov 5, 20263.890%3.956%99.6974442.46USD 115 billionDec 8, 2026
8-Week912797WN3Nov 5, 20263.975%4.055%99.3816672.68USD 110 billionJan 5, 2027
17-Week912797XG7Nov 4, 20264.090%4.204%98.6480283.26USD 75 billionMar 9, 2027
6-Week912797VH7Nov 3, 20263.940%4.013%99.5403332.88USD 100 billionDec 17, 2026
26-Week912797WX1Nov 2, 20264.150%4.298%97.9019442.89USD 82 billionMay 6, 2027
13-Week912797VV6Nov 2, 20264.040%4.138%98.9787782.88USD 95 billionFeb 4, 2027
4-Week912797VZ7Oct 29, 20263.910%3.976%99.6958893.10USD 115 billionDec 1, 2026
8-Week912797WH6Oct 29, 20264.020%4.101%99.3746672.63USD 110 billionDec 29, 2026
17-Week912797XB8Oct 28, 20264.140%4.256%98.6315003.08USD 75 billionMar 2, 2027
52-Week912797WT0Oct 27, 20264.290%4.496%95.6623333.15USD 54 billionOct 28, 2027
HistoricalSource: TreasuryDirect securities serviceRetrieved Nov 6, 2026, 04:22 UTC

Upcoming auctions

Announced offerings that have no published result yet. Simulated subscriptions on this platform are not bids at these auctions.

Upcoming US Treasury bill auctions
TermCUSIPAnnouncedAuction dateIssue dateMaturityOffering
13-Week912797WB9Nov 5, 2026Nov 9, 2026Nov 12, 2026Feb 11, 2027USD 95 billion
6-Week912797TC1Nov 5, 2026Nov 9, 2026Nov 12, 2026Dec 24, 2026USD 100 billion
26-Week912797UX3Nov 5, 2026Nov 9, 2026Nov 12, 2026May 13, 2027USD 82 billion
Delayed officialSource: TreasuryDirect securities serviceRetrieved Nov 6, 2026, 04:22 UTC

Learn how these numbers fit together

Short lessons explain discount pricing, the investment rate and how auctions set a price.

Start with the lessonsLaunch Demo