Interest earned on all U.S. Treasury securities, including Treasury bills (T-Bills), is exempt from taxation at the state and local level but is fully taxable at the federal level. At the end of each tax year or early in the next (by Jan. 31), owners of Treasury bills should receive a Form 1099-INT from the Dept. of the Treasury. This form details how much interest was earned on government securities for the year—information that is also filed with the Internal Revenue Service (IRS).
Key Takeaways
- Interest from Treasury bills (T-bills) is subject to federal income taxes but not state or local taxes.
- The interest income received in a year is recorded on Form 1099-INT.
- Investors can opt to have up to 50% of their Treasury bills' interest earnings automatically withheld.
- If you live in a state with high local taxes, T-bills might be more advantageous than other short-term fixed instruments, like CDs.
Understanding Treasury Bills (T-Bills)
But first, a quick recap of the asset. Treasury bills are short-term debt obligations that are fully backed by the faith and credit of the U.S. government. They are sold in denominations of $100 up to $5 million. T-bill maturity durations are all less than one calendar year. Common maturity durations are one month, three months (13 weeks), or six months (26 weeks).
Like all Treasury securities, T-bills are considered to be risk-free assets. The likelihood of the U.S. government defaulting on debt obligations is incredibly low, given its ability to tax and print money and, of course, the general strength and reputation of the U.S.
It was this reputation for safety that, during the 2007-2008 financial crisis, caused investors to flock to Treasury securities as losses in stocks and other assets in their portfolios mounted. Those who had already invested heavily in Treasury securities prior to the crisis did successfully safeguard their capital.
Tax Rate of Treasury Bills
The interest earned by a T-bill is taxable as investment income in the year the bill matures. It must be reported on your federal tax return, Form 1040, and is taxed at the investor's marginal tax rate.
Even if you don't receive a Form 1099-INT for some reason, you are responsible for reporting the interest income generated by your T-bills and paying taxes on that amount.
If you buy a T-bill at a discounted price and then sell it at a premium price, that profit might also be taxable as a capital gain.
The federal tax burden can be eased through automatic tax withholding. Investors who own Treasury bills can opt to have up to 50% of their interest earnings automatically withheld; the exact percentage can be specified through any retail securities site. The Treasury automatically transfers the withholdings to the U.S. Internal Revenue Service (IRS) and reports the amount that is withheld on the 1099-INT form.
Tax Advantages of T-Bills
Although T-bills don't pay the highest interest rate (the tradeoff for being so low-risk), their exemption from state and local taxes can give them an advantage over other short-term, fixed-income assets, such as certificates of deposit (CDs)—especially for investors living in high-income-tax states, such as California, Massachusetts, New York, and Oregon. CDs are fully taxable.
To compare the interest rate from a CD with the rate from a Treasury bill and see which works out better tax-wise, you have to calculate the after-tax yields for both investments.
As an example, say that you are a single taxpayer in New York with an income of $100,000 per year, and the one-year Treasury bill you are looking at yields 0.07% (as it is as of April 21, 2021). The federal tax rate for your income level is 24%, and the state income tax rate is 6.33%.
After federal taxes, your net earnings from the Treasury bill will be only 0.053%, or 0.07% x (100% - 24%). But the tax rate on the CD is higher since it also includes state taxes.
You would only keep 69.67% of the yields after taxes (100% - 24% - 6.33%). Divide 0.00053, the after-tax yield of the Treasury bill, by 0.7003 to get 0.00076, the equivalent yield for a certificate of deposit. A CD must therefore yield more than 0.076% to be a better deal than the Treasury at your income level.
Correction—June 9, 2022: An earlier version of this article incorrectly calculated the equivalent yields between Treasuries and CDs.
FAQs
T-Bill Tax Considerations
How much tax do you pay on T bills? ›
Each month, the T-bill ETF distributes taxable income to its shareholders, reflecting interest harvested from the short-term Treasuries it owns. Those earnings are taxable at the ordinary income tax rate that applies to salary, as much as 37%.
How to avoid taxes on Treasury bills? ›
Interest from Treasury bills (T-bills) is subject to federal income taxes but not state or local taxes. The interest income received in a year is recorded on Form 1099-INT. Investors can opt to have up to 50% of their Treasury bills' interest earnings automatically withheld.
Are Canadian Treasury bills taxable? ›
Treasury bills, or T-bills, are purchased at a discount from maturity value. The difference between maturity value and purchase price is taxed as interest income. If the T-bill is sold prior to maturity, a capital gain or loss will result.
Do you pay capital gains tax on T bills? ›
Are Treasury bills taxed as capital gains? Normally no. However, if you buy a T-bill in the secondary market and then achieve a profit, you may be liable for capital gains depending on your exact purchase price.
How much does a $1000 T bill cost? ›
To calculate the price, take 180 days and multiply by 1.5 to get 270. Then, divide by 360 to get 0.75, and subtract 100 minus 0.75. The answer is 99.25. Because you're buying a $1,000 Treasury bill instead of one for $100, multiply 99.25 by 10 to get the final price of $992.50.
What happens when a T-bill matures? ›
When the bill matures, you are paid its face value. You can hold a bill until it matures or sell it before it matures.
What is the disadvantage of investing in Treasury bills? ›
The following are the disadvantages of T-bills: The returns on T-bills are generally lower than other investments, such as stocks or bonds. This means that investors looking for high returns may not find T-bills attractive.
How are T-bills taxed at maturity? ›
Interest income from Treasury securities is subject to federal income tax but exempt from state and local taxes. Income from Treasury bills is paid at maturity and, thus, tax-reportable in the year in which it is received.
Why not to invest in Treasury bills? ›
Taxes: Treasury bills are exempt from state and local taxes but still subject to federal income taxes. That makes them less attractive holdings for taxable accounts. Investors in higher tax brackets might want to consider short-term municipal securities instead.
In fact, they are considered risk-free. The only downside is that you won't get a great return because Treasuries are exceptionally safe. Corporate bonds, GICs, and money market funds will often give higher rates of interest.
What is the return on the Canadian T-Bills? ›
Canada 3 Month Treasury Bill Yield is at 4.93%, compared to 4.93% the previous market day and 4.40% last year. This is higher than the long term average of 4.18%. The Canada 3 Month Treasury Bill Yield is the yield received for investing in a Canadian government issued treasury security that has a maturity of 3 months.
What happens if you sell a T-bill before maturity? ›
Treasury bonds, notes, and bills have no default risk since the U.S. government guarantees them. Investors will receive the bond's face value if they hold it to maturity. However, if sold before maturity, your gain or loss depends on the difference between the initial price and what you sold the Treasury for.
Are T-bills a good investment? ›
While interest rates and inflation can affect Treasury bill rates, they're generally considered a lower-risk (but lower-reward) investment than other debt securities. Treasury bills are backed by the full faith and credit of the U.S. government. If held to maturity, T-bills are considered virtually risk-free.
How is interest paid on T-bills? ›
The only interest payment to you occurs when your bill matures. At that time, you are paid the par amount (also called face value) of the bill. (Bills are typically sold at a discount from the par amount, and the difference between the purchase price and the par amount is your interest.)
What is the 3 month T bill rate? ›
3 Month Treasury Bill Rate is at 5.25%, compared to 5.26% the previous market day and 5.09% last year. This is higher than the long term average of 4.19%. The 3 Month Treasury Bill Rate is the yield received for investing in a government issued treasury security that has a maturity of 3 months.
How do you calculate income from T bills? ›
To calculate yield, subtract the bill's purchase price from its face value and then divide the result by the bill's purchase price. Finally, multiply your answer by 100 to convert it to a percentage.
Is now a good time to buy T bills? ›
The pros and cons of taking refuge in cash now that yields are hovering above 5%. Cash investors haven't had it this good in years. After a long period of near-zero yields, yields on the three-month Treasury bill have been as high as 5.5% so far in 2023—their highest level since December 2000.
Are T bills worth it? ›
While interest rates and inflation can affect Treasury bill rates, they're generally considered a lower-risk (but lower-reward) investment than other debt securities. Treasury bills are backed by the full faith and credit of the U.S. government. If held to maturity, T-bills are considered virtually risk-free.
How is interest paid on T bills? ›
The only interest payment to you occurs when your bill matures. At that time, you are paid the par amount (also called face value) of the bill. (Bills are typically sold at a discount from the par amount, and the difference between the purchase price and the par amount is your interest.)
