T-Bill Rates · Treasury Bills
52-Week (1-Year) Treasury Bill Rates
Every 52-week bill auction since January 2000: the rate it sold at, what $10,000 cost and earned, and when the next one is.
Latest 52-Week Auction
Tuesday, Sep 29, 2026
52-Week (1-Year) Bill
4.616%
investment rate · +45.5 bp vs prior auction · discount rate 4.400%
$10,000 cost
$9,555.11
$95.551111 per $100
Earns at maturity
$444.89
over 364 days
Matures
Sep 30, 2027
issued Oct 1, 2026
Bid-to-cover
3.07×
$54B sold
At the Sep 29, 2026 auction, the 52-week (1-year) Treasury bill sold at an investment rate of 4.616% (discount rate 4.400%). $10,000 of face value cost $9,555.11 and pays $10,000 on Sep 30, 2027, earning $444.89.
Highest on Record
6.375%
May 31, 2000
Lowest on Record
0.056%
May 18, 2021
A Year Ago
3.817%
Sep 2, 2025
Auctions Tracked
247
14 in the last 12 months · since January 2000
Investment rate at every auction
Every 52-week bill auction
| Date | Rate | Discount | Chg | Price / $100 | $10,000 cost | Earns | Cover | Size | Official results |
|---|---|---|---|---|---|---|---|---|---|
| 4.616% | 4.400% | +45.5 bp | 95.551111 | $9,555.11 | $444.89 | 3.07× | $54B | ||
| 4.161% | 3.980% | +10.7 bp | 95.975778 | $9,597.58 | $402.42 | 3.61× | $52B | ||
| 4.054% | 3.880% | +2.2 bp | 96.076889 | $9,607.69 | $392.31 | 3.62× | $52B | ||
| 4.032% | 3.860% | +11.8 bp | 96.097111 | $9,609.71 | $390.29 | 3.14× | $52B | ||
| 3.914% | 3.750% | +10.8 bp | 96.208333 | $9,620.83 | $379.17 | 3.34× | $50B | ||
| 3.806% | 3.650% | +9.6 bp | 96.309444 | $9,630.94 | $369.06 | 3.41× | $50B | ||
| 3.710% | 3.560% | +8 bp | 96.400444 | $9,640.04 | $359.96 | 3.21× | $50B | ||
| 3.630% | 3.485% | +15 bp | 96.476278 | $9,647.63 | $352.37 | 3.43× | $50B | ||
| 3.480% | 3.345% | −4.8 bp | 96.617833 | $9,661.78 | $338.22 | 2.96× | $50B | ||
| 3.528% | 3.390% | +1.1 bp | 96.572333 | $9,657.23 | $342.77 | 3.42× | $50B | ||
| 3.517% | 3.380% | −8.6 bp | 96.591833 | $9,659.18 | $340.82 | 3.74× | $50B | ||
| 3.603% | 3.460% | +1.6 bp | 96.501556 | $9,650.16 | $349.84 | 3.08× | $50B | ||
| 3.587% | 3.445% | −10.1 bp | 96.516722 | $9,651.67 | $348.33 | 3.21× | $50B | ||
| 3.688% | 3.540% | −12.9 bp | 96.420667 | $9,642.07 | $357.93 | 2.92× | $50B | ||
| 3.817% | 3.660% | −10.7 bp | 96.299333 | $9,629.93 | $370.07 | 3.82× | $50B | ||
| 3.924% | 3.760% | −17.8 bp | 96.198222 | $9,619.82 | $380.18 | 2.85× | $50B | ||
| 4.102% | 3.925% | −1.6 bp | 96.031389 | $9,603.14 | $396.86 | 3.23× | $50B | ||
| 4.118% | 3.940% | +1.1 bp | 96.016222 | $9,601.62 | $398.38 | 3.22× | $48B | ||
| 4.107% | 3.930% | +11.8 bp | 96.026333 | $9,602.63 | $397.37 | 3.31× | $48B | ||
| 3.989% | 3.820% | −13.5 bp | 96.137556 | $9,613.76 | $386.24 | 2.94× | $48B | ||
| 4.124% | 3.945% | −11.3 bp | 96.011167 | $9,601.12 | $398.88 | 3.13× | $48B | ||
| 4.237% | 4.050% | +2.7 bp | 95.905000 | $9,590.50 | $409.50 | 3.03× | $48B | ||
| 4.210% | 4.025% | −4.9 bp | 95.930278 | $9,593.03 | $406.97 | 3.14× | $48B | ||
| 4.259% | 4.070% | −12.9 bp | 95.873472 | $9,587.35 | $412.65 | 3.37× | $48B | ||
| 4.388% | 4.190% | +9.7 bp | 95.763444 | $9,576.34 | $423.66 | 3.26× | $48B | ||
| 4.291% | 4.100% | +34.5 bp | 95.854444 | $9,585.44 | $414.56 | 3.05× | $48B |
Show 105 earlier auctions, back to October 2016+
| Date | Rate | Discount | $10,000 cost | Cover | Size |
|---|---|---|---|---|---|
| Oct 1, 2024 | 3.946% | 3.780% | $9,617.80 | 3.45× | $48B |
| Sep 3, 2024 | 4.345% | 4.150% | $9,580.39 | 3.00× | $46B |
| Aug 6, 2024 | 4.458% | 4.255% | $9,569.77 | 2.93× | $46B |
| Jul 9, 2024 | 5.024% | 4.775% | $9,517.19 | 2.85× | $46B |
| Jun 11, 2024 | 5.177% | 4.915% | $9,503.04 | 2.87× | $46B |
| May 14, 2024 | 5.155% | 4.895% | $9,505.06 | 3.00× | $46B |
| Apr 16, 2024 | 5.177% | 4.915% | $9,503.04 | 2.88× | $46B |
| Mar 19, 2024 | 5.062% | 4.810% | $9,513.66 | 2.88× | $46B |
| Feb 20, 2024 | 4.950% | 4.695% | $9,525.28 | 2.76× | $46B |
| Jan 23, 2024 | 4.814% | 4.570% | $9,537.92 | 3.05× | $46B |
| Dec 26, 2023 | 4.841% | 4.595% | $9,535.39 | 3.27× | $44B |
| Nov 28, 2023 | 5.214% | 4.935% | $9,499.65 | 3.56× | $44B |
| Oct 31, 2023 | 5.433% | 5.135% | $9,480.79 | 2.89× | $44B |
| Oct 3, 2023 | 5.488% | 5.185% | $9,475.74 | 3.21× | $44B |
| Sep 5, 2023 | 5.417% | 5.120% | $9,482.31 | 3.14× | $42B |
| Aug 8, 2023 | 5.351% | 5.060% | $9,488.38 | 2.97× | $40B |
| Jul 11, 2023 | 5.428% | 5.130% | $9,481.30 | 2.88× | $38B |
| Jun 13, 2023 | 5.208% | 4.930% | $9,501.52 | 2.83× | $38B |
| May 16, 2023 | 4.896% | 4.645% | $9,530.34 | 2.49× | $36B |
| Apr 18, 2023 | 4.770% | 4.530% | $9,541.97 | 2.97× | $34B |
| Mar 21, 2023 | 4.617% | 4.390% | $9,556.12 | 2.85× | $34B |
| Feb 21, 2023 | 5.046% | 4.795% | $9,515.17 | 2.89× | $34B |
| Jan 24, 2023 | 4.692% | 4.470% | $9,548.03 | 2.87× | $34B |
| Dec 27, 2022 | 4.741% | 4.515% | $9,543.48 | 3.24× | $34B |
| Nov 29, 2022 | 4.784% | 4.555% | $9,539.44 | 2.83× | $34B |
| Nov 1, 2022 | 4.730% | 4.505% | $9,544.49 | 2.83× | $34B |
| Oct 4, 2022 | 4.134% | 3.955% | $9,600.11 | 2.68× | $34B |
| Sep 6, 2022 | 3.603% | 3.460% | $9,650.16 | 2.75× | $34B |
| Aug 9, 2022 | 3.325% | 3.200% | $9,676.44 | 3.05× | $34B |
| Jul 12, 2022 | 3.070% | 2.960% | $9,700.71 | 3.17× | $34B |
| Jun 14, 2022 | 3.134% | 3.020% | $9,694.64 | 3.14× | $34B |
| May 18, 2022 | 2.164% | 2.100% | $9,787.67 | 3.12× | $34B |
| Apr 19, 2022 | 1.923% | 1.870% | $9,810.92 | 3.31× | $34B |
| Mar 22, 2022 | 1.632% | 1.590% | $9,839.23 | 3.29× | $34B |
| Feb 22, 2022 | 1.171% | 1.145% | $9,884.23 | 2.81× | $34B |
| Jan 25, 2022 | 0.642% | 0.630% | $9,936.30 | 2.98× | $34B |
| Dec 28, 2021 | 0.397% | 0.390% | $9,960.57 | 3.15× | $34B |
| Nov 30, 2021 | 0.244% | 0.240% | $9,975.73 | 3.01× | $34B |
| Nov 2, 2021 | 0.162% | 0.160% | $9,983.82 | 3.25× | $34B |
| Oct 5, 2021 | 0.091% | 0.090% | $9,990.90 | 3.37× | $34B |
| Sep 7, 2021 | 0.076% | 0.075% | $9,992.42 | 3.75× | $34B |
| Aug 10, 2021 | 0.081% | 0.080% | $9,991.91 | 3.62× | $34B |
| Jul 13, 2021 | 0.076% | 0.075% | $9,992.42 | 3.46× | $34B |
| Jun 15, 2021 | 0.071% | 0.070% | $9,992.92 | 3.19× | $34B |
| May 18, 2021 | 0.056% | 0.055% | $9,994.44 | 3.32× | $34B |
| Apr 20, 2021 | 0.066% | 0.065% | $9,993.43 | 3.69× | $34B |
| Mar 23, 2021 | 0.071% | 0.070% | $9,992.92 | 3.46× | $34B |
| Feb 23, 2021 | 0.071% | 0.070% | $9,992.92 | 3.36× | $34B |
| Jan 26, 2021 | 0.091% | 0.090% | $9,990.90 | 3.92× | $34B |
| Dec 29, 2020 | 0.112% | 0.110% | $9,988.88 | 3.21× | $34B |
| Dec 1, 2020 | 0.112% | 0.110% | $9,988.88 | 3.73× | $34B |
| Nov 3, 2020 | 0.137% | 0.135% | $9,986.35 | 3.54× | $34B |
| Oct 6, 2020 | 0.142% | 0.140% | $9,985.84 | 3.15× | $34B |
| Sep 8, 2020 | 0.142% | 0.140% | $9,985.84 | 3.04× | $34B |
| Aug 11, 2020 | 0.142% | 0.140% | $9,985.84 | 3.32× | $34B |
| Jul 14, 2020 | 0.157% | 0.155% | $9,984.33 | 3.14× | $34B |
| Jun 16, 2020 | 0.203% | 0.200% | $9,979.78 | 2.91× | $34B |
| May 19, 2020 | 0.162% | 0.160% | $9,983.82 | 3.30× | $31B |
| Apr 21, 2020 | 0.168% | 0.165% | $9,983.32 | 3.38× | $28B |
| Mar 24, 2020 | 0.264% | 0.260% | $9,973.71 | 2.53× | $26B |
| Feb 25, 2020 | 1.304% | 1.270% | $9,871.59 | 3.56× | $26B |
| Jan 28, 2020 | 1.532% | 1.490% | $9,849.34 | 3.36× | $26B |
| Dec 30, 2019 | 1.595% | 1.550% | $9,843.28 | 2.95× | $26B |
| Dec 3, 2019 | 1.569% | 1.525% | $9,845.81 | 3.39× | $26B |
| Nov 5, 2019 | 1.610% | 1.565% | $9,841.76 | 2.84× | $28B |
| Oct 8, 2019 | 1.647% | 1.600% | $9,838.22 | 2.98× | $28B |
| Sep 10, 2019 | 1.793% | 1.740% | $9,824.07 | 2.81× | $28B |
| Aug 13, 2019 | 1.855% | 1.800% | $9,818.00 | 2.66× | $28B |
| Jul 16, 2019 | 1.976% | 1.915% | $9,806.37 | 2.87× | $26B |
| Jun 18, 2019 | 2.049% | 1.985% | $9,799.29 | 2.88× | $26B |
| May 21, 2019 | 2.359% | 2.280% | $9,769.47 | 2.95× | $26B |
| Apr 23, 2019 | 2.443% | 2.360% | $9,761.38 | 3.44× | $26B |
| Mar 26, 2019 | 2.443% | 2.360% | $9,761.38 | 3.69× | $26B |
| Feb 26, 2019 | 2.552% | 2.470% | $9,750.26 | 3.60× | $26B |
| Jan 29, 2019 | 2.600% | 2.515% | $9,745.71 | 3.16× | $26B |
| Dec 31, 2018 | 2.631% | 2.545% | $9,742.67 | 3.13× | $26B |
| Dec 4, 2018 | 2.726% | 2.635% | $9,733.57 | 3.05× | $26B |
| Nov 6, 2018 | 2.737% | 2.645% | $9,732.56 | 3.05× | $26B |
| Oct 9, 2018 | 2.668% | 2.580% | $9,739.13 | 3.48× | $26B |
| Sep 11, 2018 | 2.547% | 2.465% | $9,750.76 | 3.76× | $26B |
| Aug 14, 2018 | 2.442% | 2.365% | $9,760.87 | 3.21× | $26B |
| Jul 17, 2018 | 2.410% | 2.335% | $9,763.91 | 3.03× | $26B |
| Jun 19, 2018 | 2.347% | 2.275% | $9,769.97 | 3.41× | $26B |
| May 22, 2018 | 2.347% | 2.275% | $9,769.97 | 3.68× | $26B |
| Apr 24, 2018 | 2.268% | 2.200% | $9,777.56 | 3.39× | $26B |
| Mar 27, 2018 | 2.132% | 2.070% | $9,790.70 | 2.99× | $24B |
| Feb 27, 2018 | 2.080% | 2.020% | $9,795.76 | 3.00× | $22B |
| Jan 30, 2018 | 1.882% | 1.830% | $9,814.97 | 3.36× | $20B |
| Jan 2, 2018 | 1.829% | 1.780% | $9,820.02 | 2.91× | $20B |
| Dec 5, 2017 | 1.694% | 1.650% | $9,833.17 | 3.44× | $20B |
| Nov 7, 2017 | 1.523% | 1.485% | $9,849.85 | 3.34× | $20B |
| Oct 10, 2017 | 1.398% | 1.365% | $9,861.98 | 3.27× | $20B |
| Sep 12, 2017 | 1.269% | 1.240% | $9,874.62 | 3.16× | $20B |
| Aug 15, 2017 | 1.259% | 1.230% | $9,875.63 | 3.25× | $20B |
| Jul 18, 2017 | 1.218% | 1.190% | $9,879.68 | 3.17× | $20B |
| Jun 20, 2017 | 1.243% | 1.215% | $9,877.15 | 3.31× | $20B |
| May 23, 2017 | 1.171% | 1.145% | $9,884.23 | 2.84× | $20B |
| Apr 25, 2017 | 1.083% | 1.060% | $9,892.82 | 3.23× | $20B |
| Mar 28, 2017 | 1.047% | 1.025% | $9,896.36 | 3.17× | $20B |
| Feb 28, 2017 | 0.867% | 0.850% | $9,914.06 | 3.14× | $20B |
| Jan 31, 2017 | 0.826% | 0.810% | $9,918.10 | 3.48× | $20B |
| Jan 3, 2017 | 0.888% | 0.870% | $9,912.03 | 3.39× | $20B |
| Dec 6, 2016 | 0.847% | 0.830% | $9,916.08 | 3.58× | $20B |
| Nov 8, 2016 | 0.708% | 0.695% | $9,929.73 | 3.35× | $20B |
| Oct 11, 2016 | 0.693% | 0.680% | $9,931.24 | 3.46× | $20B |
Rate = investment rate (bond-equivalent yield); Discount = the same result on Treasury's 360-day discount basis. Chg = rate versus the previous auction of this bill. Price = per $100 of face value, as Treasury prints it; $10,000 cost and Earns scale it to $10,000 of face value. Cover = bid-to-cover ratio. Size = amount offered to the public. r = reopening of an existing bill. PDF = Treasury's official results.
The tables carry the last ten years. The full record since January 2000 is in the chart above and in the open JSON.
Frequently Asked Questions
What is the current 1-year T-bill rate?
At the Sep 29, 2026 auction, the 52-week (1-year) Treasury bill sold at an investment rate of 4.616% (discount rate 4.400%). $10,000 of face value cost $9,555.11 and pays $10,000 on Sep 30, 2027, earning $444.89. The investment rate is the bond-equivalent yield, the number to set beside a savings account or CD rate; the discount rate is the same result on Treasury's 360-day discount basis and is always a little lower.
When is the next 52-week T-bill auction?
Treasury has not announced the next 52-week bill auction yet; it does so a few days ahead, and this bill usually auctions on a Tuesday. This page lists it as soon as it is announced. Competitive bidding closes at 11:30 am Eastern on auction day and Treasury posts the results within minutes.
How much does $10,000 of the 52-week bill cost?
At the Sep 29, 2026 auction, $10,000 of face value cost $9,555.11. It pays $10,000 on Sep 30, 2027, 364 days after issue, so the bill earns $444.89. Individuals can place a non-competitive bid through TreasuryDirect (from $100) or most brokerages (usually from $1,000), up to $10 million per auction, and receive the rate the auction sets. Interest on Treasury bills is subject to federal income tax and exempt from state and local income tax.
What was the 52-week (1-year) T-bill rate a year ago?
3.817%, at the Sep 2, 2025 auction. The latest auction, on Sep 29, 2026, paid 4.616%, 80 bp higher.
What is the highest 52-week (1-year) T-bill rate since 2000?
6.375%, at the May 31, 2000 auction. The lowest was 0.056% on May 18, 2021. The record on this page starts with the Jan 4, 2000 auction.
How often does Treasury auction the 52-week bill?
Treasury held 14 52-week bill auctions in the last twelve months, usually on a Tuesday. Each 52-week auction sells a new bill with its own CUSIP and maturity date.
Data: US Department of the Treasury (Fiscal Data and TreasuryDirect); Treasury's official results are linked on every auction. The $10,000 cost and earnings are TFTC's arithmetic from the price per $100. How to read the two rates, and how to buy at auction, is on the T-bill rates page. Full history as open JSON (CC BY 4.0). Not investment advice.