T-Bill calculator
| Term | APR | Per week | At maturity | ||||
|---|---|---|---|---|---|---|---|
Estimates from the most recent auction of each term. The next auction will price differently.
T-Bill rate history
The investment rate at every auction, one line per term.
| Auction | Term | APR | Price per $100 |
|---|
How T-Bills work
- Terms
- 4, 6, 8, 13, 17, 26, and 52 weeks.
- How it pays
- No interest payments. You pay less than face value and get face value at maturity.
- Buying
- From $100, in $100 steps, at auction. A noncompetitive bid takes the auction's rate.
- Taxes
- Federal income tax applies. Exempt from state and local income tax.
How this calculator works
A bill's return is its discount: the gap between the auction price and the $100 of face value paid back at maturity. The calculator applies each term's latest auction price to the amount you enter.
APR is the investment rate Treasury publishes with each auction result. Per week spreads the profit at maturity evenly over the bill's life, so terms compare.
Ready to buy T-Bills?
You can buy T-Bills directly from the U.S. government at TreasuryDirect.
Treasury Calculator is an independent site and is not affiliated with the U.S. government.