Treasury Bill Calculator
Estimate maturity value and maintain a weekly record of treasury bill rates.
Calculate Return
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Estimated Interest
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Estimated Maturity Value
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Yield (Tenor Period)
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Historical Auction Rates
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| Issue Date | Security Type | Interest Rate (%) |
|---|---|---|
| Jun 1, 2026 | 91 DAY BILL | 4.9901% |
| May 25, 2026 | 91 DAY BILL | 4.9142% |
| May 18, 2026 | 91 DAY BILL | 4.9174% |
| May 11, 2026 | 91 DAY BILL | 4.8832% |
| May 4, 2026 | 91 DAY BILL | 4.9233% |
| Apr 27, 2026 | 91 DAY BILL | 4.9244% |
| Apr 20, 2026 | 91 DAY BILL | 4.9480% |
| Apr 13, 2026 | 91 DAY BILL | 4.9107% |
| Apr 6, 2026 | 91 DAY BILL | 4.8170% |
| Mar 30, 2026 | 91 DAY BILL | 4.8118% |
| Mar 23, 2026 | 91 DAY BILL | 4.7817% |
| Mar 16, 2026 | 91 DAY BILL | 4.7100% |
| Mar 9, 2026 | 91 DAY BILL | 4.8254% |
| Mar 2, 2026 | 91 DAY BILL | 5.3237% |
| Feb 23, 2026 | 91 DAY BILL | 6.4531% |
| Feb 16, 2026 | 91 DAY BILL | 8.6095% |
| Feb 9, 2026 | 91 DAY BILL | 9.9696% |
| Feb 2, 2026 | 91 DAY BILL | 10.8260% |
| Jan 26, 2026 | 91 DAY BILL | 11.1969% |
| Jan 19, 2026 | 91 DAY BILL | 11.1947% |
| Jan 12, 2026 | 91 DAY BILL | 11.1706% |
| Jan 5, 2026 | 91 DAY BILL | 11.1169% |
| Dec 29, 2025 | 91 DAY BILL | 11.0911% |
| Dec 22, 2025 | 91 DAY BILL | 11.0887% |
| Dec 15, 2025 | 91 DAY BILL | 11.1108% |
| Dec 8, 2025 | 91 DAY BILL | 11.0826% |
| Dec 1, 2025 | 91 DAY BILL | 11.0502% |
| Nov 24, 2025 | 91 DAY BILL | 11.1353% |
| Nov 17, 2025 | 91 DAY BILL | 11.0276% |
| Nov 10, 2025 | 91 DAY BILL | 10.9277% |
| Nov 3, 2025 | 91 DAY BILL | 10.8159% |
| Oct 27, 2025 | 91 DAY BILL | 10.6747% |
| Oct 20, 2025 | 91 DAY BILL | 10.6975% |
| Oct 13, 2025 | 91 DAY BILL | 10.5301% |
| Oct 6, 2025 | 91 DAY BILL | 10.4739% |
| Sep 29, 2025 | 91 DAY BILL | 10.5048% |
| Sep 22, 2025 | 91 DAY BILL | 10.4574% |
| Sep 15, 2025 | 91 DAY BILL | 10.5306% |
| Sep 8, 2025 | 91 DAY BILL | 10.4219% |
| Sep 1, 2025 | 91 DAY BILL | 10.3265% |
| Aug 25, 2025 | 91 DAY BILL | 10.4197% |
| Aug 18, 2025 | 91 DAY BILL | 10.1374% |
| Aug 11, 2025 | 91 DAY BILL | 10.2009% |
| Aug 4, 2025 | 91 DAY BILL | 10.2949% |
| Jul 28, 2025 | 91 DAY BILL | 10.8387% |
| Jul 21, 2025 | 91 DAY BILL | 13.7276% |
| Jul 14, 2025 | 91 DAY BILL | 14.6597% |
| Jul 7, 2025 | 91 DAY BILL | 14.5669% |
| Jun 30, 2025 | 91 DAY BILL | 14.6937% |
| Jun 23, 2025 | 91 DAY BILL | 14.6976% |
| Jun 1, 2026 | 182 DAY BILL | 7.0434% |
| May 25, 2026 | 182 DAY BILL | 7.0406% |
| May 18, 2026 | 182 DAY BILL | 7.0412% |
| May 11, 2026 | 182 DAY BILL | 7.0384% |
| May 4, 2026 | 182 DAY BILL | 6.9715% |
| Apr 27, 2026 | 182 DAY BILL | 6.9630% |
| Apr 20, 2026 | 182 DAY BILL | 6.9099% |
| Apr 13, 2026 | 182 DAY BILL | 6.7759% |
| Apr 6, 2026 | 182 DAY BILL | 6.7104% |
| Mar 30, 2026 | 182 DAY BILL | 6.6214% |
| Mar 23, 2026 | 182 DAY BILL | 6.3621% |
| Mar 16, 2026 | 182 DAY BILL | 6.2833% |
| Mar 9, 2026 | 182 DAY BILL | 6.3048% |
| Mar 2, 2026 | 182 DAY BILL | 6.9775% |
| Feb 23, 2026 | 182 DAY BILL | 8.1822% |
| Feb 16, 2026 | 182 DAY BILL | 10.6789% |
| Feb 9, 2026 | 182 DAY BILL | 11.8165% |
| Feb 2, 2026 | 182 DAY BILL | 12.3806% |
| Jan 26, 2026 | 182 DAY BILL | 12.6656% |
| Jan 19, 2026 | 182 DAY BILL | 12.6484% |
| Jan 12, 2026 | 182 DAY BILL | 12.6154% |
| Jan 5, 2026 | 182 DAY BILL | 12.5506% |
| Dec 29, 2025 | 182 DAY BILL | 12.5248% |
| Dec 22, 2025 | 182 DAY BILL | 12.4358% |
| Dec 15, 2025 | 182 DAY BILL | 12.5421% |
| Dec 8, 2025 | 182 DAY BILL | 12.5527% |
| Dec 1, 2025 | 182 DAY BILL | 12.4301% |
| Nov 24, 2025 | 182 DAY BILL | 12.6805% |
| Nov 17, 2025 | 182 DAY BILL | 12.6605% |
| Nov 10, 2025 | 182 DAY BILL | 12.6115% |
| Nov 3, 2025 | 182 DAY BILL | 12.4969% |
| Oct 27, 2025 | 182 DAY BILL | 12.4684% |
| Oct 20, 2025 | 182 DAY BILL | 12.4385% |
| Oct 13, 2025 | 182 DAY BILL | 12.3069% |
| Oct 6, 2025 | 182 DAY BILL | 12.3516% |
| Sep 29, 2025 | 182 DAY BILL | 12.3922% |
| Sep 22, 2025 | 182 DAY BILL | 12.3610% |
| Sep 15, 2025 | 182 DAY BILL | 12.4412% |
| Sep 8, 2025 | 182 DAY BILL | 12.4110% |
| Sep 1, 2025 | 182 DAY BILL | 12.3724% |
| Aug 25, 2025 | 182 DAY BILL | 12.3860% |
| Aug 18, 2025 | 182 DAY BILL | 12.2303% |
| Aug 11, 2025 | 182 DAY BILL | 12.2540% |
| Aug 4, 2025 | 182 DAY BILL | 12.3594% |
| Jul 28, 2025 | 182 DAY BILL | 13.2279% |
| Jul 21, 2025 | 182 DAY BILL | 14.6163% |
| Jul 14, 2025 | 182 DAY BILL | 15.0289% |
| Jul 7, 2025 | 182 DAY BILL | 15.0192% |
| Jun 30, 2025 | 182 DAY BILL | 15.2506% |
| Jun 23, 2025 | 182 DAY BILL | 15.2540% |
| Jun 1, 2026 | 364 DAY BILL | 10.4593% |
| May 25, 2026 | 364 DAY BILL | 10.3716% |
| May 18, 2026 | 364 DAY BILL | 10.3858% |
| May 11, 2026 | 364 DAY BILL | 10.1302% |
| May 4, 2026 | 364 DAY BILL | 10.1967% |
| Apr 27, 2026 | 364 DAY BILL | 10.1239% |
| Apr 20, 2026 | 364 DAY BILL | 10.1284% |
| Apr 13, 2026 | 364 DAY BILL | 9.9788% |
| Apr 6, 2026 | 364 DAY BILL | 9.8422% |
| Mar 30, 2026 | 364 DAY BILL | 9.7742% |
| Mar 23, 2026 | 364 DAY BILL | 9.5828% |
| Mar 16, 2026 | 364 DAY BILL | 9.4061% |
| Mar 9, 2026 | 364 DAY BILL | 9.3488% |
| Mar 2, 2026 | 364 DAY BILL | 9.7621% |
| Feb 23, 2026 | 364 DAY BILL | 10.2069% |
| Feb 16, 2026 | 364 DAY BILL | 11.0620% |
| Feb 9, 2026 | 364 DAY BILL | 12.0623% |
| Feb 2, 2026 | 364 DAY BILL | 12.8235% |
| Jan 26, 2026 | 364 DAY BILL | 13.0650% |
| Jan 19, 2026 | 364 DAY BILL | 12.9807% |
| Jan 12, 2026 | 364 DAY BILL | 12.9021% |
| Jan 5, 2026 | 364 DAY BILL | 12.9330% |
| Dec 29, 2025 | 364 DAY BILL | 12.9408% |
| Dec 22, 2025 | 364 DAY BILL | 12.9132% |
| Dec 15, 2025 | 364 DAY BILL | 12.9704% |
| Dec 8, 2025 | 364 DAY BILL | 12.7008% |
| Dec 1, 2025 | 364 DAY BILL | 13.0862% |
| Nov 24, 2025 | 364 DAY BILL | 13.0618% |
| Nov 17, 2025 | 364 DAY BILL | 13.0817% |
| Nov 10, 2025 | 364 DAY BILL | 13.0184% |
| Nov 3, 2025 | 364 DAY BILL | 12.9517% |
| Oct 27, 2025 | 364 DAY BILL | 12.8779% |
| Oct 20, 2025 | 364 DAY BILL | 12.9224% |
| Oct 13, 2025 | 364 DAY BILL | 12.8672% |
| Oct 6, 2025 | 364 DAY BILL | 12.8708% |
| Sep 29, 2025 | 364 DAY BILL | 12.8994% |
| Sep 22, 2025 | 364 DAY BILL | 12.8825% |
| Sep 15, 2025 | 364 DAY BILL | 12.9575% |
| Sep 8, 2025 | 364 DAY BILL | 12.9725% |
| Sep 1, 2025 | 364 DAY BILL | 12.9986% |
| Aug 25, 2025 | 364 DAY BILL | 13.0043% |
| Aug 18, 2025 | 364 DAY BILL | 13.0865% |
| Aug 11, 2025 | 364 DAY BILL | 13.1022% |
| Aug 4, 2025 | 364 DAY BILL | 13.2466% |
| Jul 28, 2025 | 364 DAY BILL | 14.3049% |
| Jul 21, 2025 | 364 DAY BILL | 14.7393% |
| Jul 14, 2025 | 364 DAY BILL | 15.1680% |
| Jul 7, 2025 | 364 DAY BILL | 15.1680% |
| Jun 30, 2025 | 364 DAY BILL | 15.6564% |
| Jun 23, 2025 | 364 DAY BILL | 15.6936% |