8-Week Treasury Bills Explained: A Complete Beginner Guide for 2026
How Do 8-Week Treasury Bills Work?
An 8-week Treasury bill is a 56-day U.S. Treasury security. It is generally issued at a discount to its face value. If you hold the bill until maturity, the Treasury pays the face value according to its terms, with the difference between your purchase price and that amount representing the gross interest.
Key Takeaways
56-Day Maturity
An 8-week bill is identified by Treasury as a 56-day bill.
Discount Pricing
The purchase price is generally below the bill’s face value.
No Coupon Payments
T-bills do not make regular interest payments during the term.
Federal Tax Applies
Treasury bill interest is subject to federal income tax but generally exempt from state and local income taxes.
Reinvestment Is Separate
A new bill can have a different yield when you reinvest after maturity.
Early Sale Has Market Risk
Selling before maturity means the price you receive can differ from what you paid.
Bottom line:
An 8-week T-bill is built around a defined 56-day holding period. The quoted annualized yield helps with comparisons, but the purchase price, maturity date, taxes and your plan for the money after maturity matter just as much.
Jump directly to the part of this 8-week Treasury bill guide you want to explore.
8-Week Treasury Bills at a Glance
An 8-week Treasury bill is a short-term U.S. Treasury security
with a 56-day term. Instead of making regular interest payments,
a Treasury bill is generally issued at a discount to its face value. At maturity,
the investor receives the amount due under the bill’s terms, with the difference
between the purchase price and maturity value representing the investment’s gross
interest.
| Quick Fact | What It Means |
|---|---|
| Term | 56 days, commonly described by the Treasury as an 8-week bill |
| Pricing | Generally sold at a discount to face value |
| Interest | Comes from the difference between the purchase price and maturity value |
| Payments | No periodic coupon payments |
| Minimum bid | Current 8-week Treasury bill offerings specify $100 and multiples of $100 |
| After maturity | You can use the proceeds or consider reinvesting in another Treasury security |
An 8-week T-bill is easiest to understand as a short cash cycle:
buy → wait 56 days → receive the maturity amount → decide what to do next.
The quoted yield helps compare investments, but your actual dollar return depends
on the purchase price, amount invested and maturity value.
8-Week Treasury Bills: A Complete Beginner Guide
If you are new to Treasury bills, think of an 8-week Treasury bill
as a short-term place for money you expect to need after roughly two months.
The Treasury sells these securities through auctions. An 8-week bill is identified
by the U.S. Treasury as a 56-Day Bill.
Unlike a savings account or a Treasury note, an 8-week T-bill does not send you
regular interest payments. It is generally purchased for less than its face value.
If you hold it until maturity, the Treasury pays the amount due under the security’s
terms. The difference between what you paid and the maturity value is the basic
source of your gross return.
Decide how much cash you can leave invested for the 56-day term.
You can place a noncompetitive bid through TreasuryDirect or use a brokerage that offers Treasury auctions.
The final auction price determines how much you pay for the bill.
After 56 days, the Treasury pays the maturity amount according to the bill’s terms.
Before buying, check the auction date, issue date and maturity date.
The maturity date matters most because that is when you expect the money to become
available again. Do not choose an 8-week bill simply because the quoted annualized
yield looks attractive; first make sure the 56-day timeline matches your cash needs.
How 8-Week Treasury Bills Work
The easiest way to understand an 8-week Treasury bill is to follow the money
from auction to maturity. The U.S. Treasury offers the bill at auction, and
the final auction results determine the price investors pay. The Treasury
identifies the 8-week security as a 56-Day Bill.
Auction
Treasury bills are offered through scheduled auctions. A noncompetitive
bidder accepts the auction’s resulting terms rather than specifying a rate.
Purchase
The bill is generally purchased below its face value. Your purchase price
depends on the auction result and the amount of the bill you buy.
56-Day Hold
The bill remains outstanding until its stated maturity date. It does not
make monthly or quarterly coupon payments during this period.
Maturity
At maturity, the Treasury pays the face value according to the bill’s
terms. The difference between your purchase price and that amount is
the basic gross return.
A Simple Example
Suppose an investor buys a hypothetical $1,000 face-value 8-week T-bill for
$992.50. If the investor holds it until maturity and receives $1,000, the
gross difference is $7.50. This is only an illustration;
the actual purchase price and return depend on the auction.
The quoted annualized yield helps investors compare short-term securities,
but it is not the same as the actual dollar amount earned over 56 days.
For your personal calculation, focus on the purchase price, face value,
amount invested and maturity date.
Benefits & Drawbacks of 8-Week Treasury Bills
An 8-week Treasury bill can be useful when you want a defined
short-term investment period. But the 56-day maturity also means you need to
plan around the money being invested. Here are the main advantages and trade-offs
to understand before buying.
Benefits to Know
- Short maturity: The 56-day term gives the investment a clearly defined end date.
- U.S. government security: Treasury bills are obligations of the U.S. government.
- No periodic coupon: You do not receive monthly or quarterly interest payments.
- State and local tax advantage: Treasury bill interest is generally exempt from state and local income taxes.
- Flexible access: Investors can buy bills through TreasuryDirect or participating financial institutions and brokers.
Drawbacks to Consider
- Limited day-to-day liquidity: Your money is committed to the security until maturity unless you sell it.
- Early-sale price risk: If you sell before maturity, the market price can be higher or lower than your purchase price.
- Federal taxes still apply: Treasury bill interest is generally subject to federal income tax.
- Future rates can change: If you reinvest after maturity, the next 8-week bill may have a different auction yield.
- No guaranteed future yield: Today’s auction result does not lock in the rate for your next Treasury bill.
The practical takeaway:
An 8-week T-bill works on a fixed 56-day timeline. Before investing, make sure
the maturity date fits your cash needs and remember that selling early introduces
market-price risk.
8-Week Treasury Bills vs Other Short-Term Options
An 8-week T-bill is only one way to manage money over a short period.
Savings accounts, money market accounts and CDs work differently, so the
comparison should go beyond the advertised rate. Your access needs, tax
situation and intended holding period can change the practical result.
| Option | Time Structure | Access & Tax Notes |
|---|---|---|
| 8-Week T-Bill | Fixed 56-day maturity | Can be held to maturity or sold in the secondary market; Treasury interest is generally exempt from state and local income taxes. |
| Savings Account | No fixed maturity | Designed for easier access; interest rates can change over time and eligible deposits may receive federal deposit insurance. |
| Money Market Account | No fixed maturity | Bank or credit-union deposit account with access features that may include checks or a debit card; rates can change. |
| CD | Fixed term selected at opening | Early withdrawal generally involves a penalty; CD interest is generally subject to applicable federal and state taxes. |
What Should You Compare?
Start with the date you expect to need the money. A 56-day T-bill has a
defined maturity, while a savings or money market account does not lock
your funds into a specific maturity date. A CD also has a defined term,
but its early-access rules are different.
Taxes can also affect the comparison. Treasury bill interest is generally
subject to federal income tax but exempt from state and local income taxes.
Bank deposit interest generally does not receive that Treasury tax exemption.
Think in terms of time, access, taxes and rate structure.
The highest advertised rate is not necessarily the most useful comparison
for money that has a specific job and a specific date.
Costs, Risks & Expert Tips for 8-Week Treasury Bills
The quoted yield is only one part of an 8-week Treasury bill
decision. Before buying, look at the purchase price, tax treatment, access to
your money and what could happen if you need to sell before the 56-day maturity.
Purchase Costs
TreasuryDirect does not charge a purchase fee or commission for Treasury
securities. A bank or broker may have its own fees, pricing or transaction policies.
Early-Sale Risk
If you sell before maturity, the bill’s market price can be above or below
your purchase price as market interest rates and other conditions change.
Tax Treatment
Treasury bill interest is subject to federal income tax but is exempt from
state and local income taxes.
Reinvestment Risk
When your bill matures, a new 8-week bill may have a different auction yield.
The next rate is not locked in by today’s purchase.
Three Checks Before You Buy
- Check the dates: Know the auction date, issue date and
maturity date before committing your cash. - Check the price: Look at the actual purchase price rather
than treating the annualized yield as your 56-day dollar return. - Check your cash deadline: If you may need the money before
maturity, understand the secondary-market price risk before buying.
Keep your Treasury purchase records and tax documents. For most individual
taxpayers using the cash method, Treasury bill interest is generally reported
when the bill is paid at maturity. Tax rules can differ for other situations.
Common Mistakes With 8-Week Treasury Bills
Most mistakes with an 8-week Treasury bill happen when investors
focus only on the quoted yield. The purchase price, maturity date and plan for
the cash can matter just as much.
Mistake 1: Treating Yield as 8-Week Return
The quoted Treasury yield is annualized. It should not be treated as the
actual percentage earned during the 56-day term.
Mistake 2: Ignoring the Maturity Date
Buying without checking when the bill matures can create a cash-flow problem
if the money is needed sooner.
Mistake 3: Forgetting the Next Step
At maturity, the proceeds become available according to the security’s
terms. Decide in advance whether the cash will be spent, saved or reinvested.
A Simple 8-Week Treasury Bill Example
Suppose an investor buys a hypothetical $1,000 face-value
8-week Treasury bill for $992.50. If the investor holds the
bill until maturity and receives $1,000, the gross difference is
$7.50.
The investor does not receive $7.50 as a monthly payment. It represents the
difference between the hypothetical purchase price and the maturity value.
The actual auction price will determine the real return.
This example also shows why comparing the purchase price with the maturity value
is useful. Your actual result can differ because Treasury auction prices and
yields change over time.
Who Should Choose 8-Week T-Bills?
An 8-week Treasury bill may fit investors who have money they
expect to leave invested for about 56 days and who understand the bill’s
maturity and pricing. The main consideration is whether the investment timeline
matches when the cash may be needed.
A Defined Cash Timeline
It can be considered when funds have a known short-term purpose and the
56-day maturity date fits that timeline.
Short-Term Treasury Exposure
It provides exposure to a short-term U.S. Treasury security rather than
keeping the money in a deposit account.
Investors Planning Ahead
If the money is still available for investment after maturity, the proceeds
can be used for another Treasury security or another financial goal.
Investors Who May Need More Access
If you may need the money before maturity, remember that selling the bill
before maturity exposes you to its secondary-market price.
The key check:
Put the expected cash-need date next to the Treasury bill’s maturity date.
If the dates do not work together, examine an option with different access
or maturity terms before committing the money.
8-Week Treasury Bills: Frequently Asked Questions
1. What is an 8-week Treasury bill?
An 8-week Treasury bill is a short-term U.S. Treasury security with a
56-day term. Treasury auction documents identify the security as a
“56-Day Bill” with an 8-week description.
2. How do 8-week Treasury bills make money?
Treasury bills are generally purchased below face value. If held to
maturity, the difference between the purchase price and the amount
received at maturity represents the gross interest.
3. Do 8-week T-bills pay monthly interest?
No. Treasury bills do not make periodic coupon payments. The return is
generally reflected in the difference between the discounted purchase
price and the maturity value.
4. How much money do I need to buy an 8-week T-bill?
Current Treasury auction offerings generally specify a minimum bid of
$100 and multiples of $100. Always check the terms of the specific
offering before placing an order.
5. Can I sell an 8-week Treasury bill before maturity?
Yes. Treasury bills can be sold in the secondary market before maturity,
but the market price can be higher or lower than the price you paid.
Selling early therefore creates market-price risk.
6. Are 8-week Treasury bills taxable?
Yes. Treasury bill interest is subject to federal income tax but is
exempt from state and local income taxes. For most individual cash-method
taxpayers, the IRS generally treats the bill’s interest as reportable
when the bill is paid at maturity.
7. What happens when an 8-week T-bill matures?
At maturity, the Treasury pays the amount due under the security’s
terms. You can then use the proceeds for your planned expense, keep
the money elsewhere or consider another Treasury investment.
8. Can I reinvest an 8-week Treasury bill?
Yes. You can use the maturity proceeds to purchase another Treasury
security. If you reinvest, remember that the next auction can have a
different yield from the bill you just held.
The basic cycle is simple: buy at the auction → hold for 56 days →
receive the maturity amount → decide what to do with the proceeds.
The details that deserve the most attention are the purchase price,
maturity date, tax treatment and what happens if you need the money early.
Final Verdict: Is an 8-Week Treasury Bill Right for Your Cash?
An 8-week Treasury bill is a short-term U.S. Treasury security
with a clearly defined 56-day maturity. It is generally purchased
below face value, with the difference between the purchase price and maturity
value representing the gross interest when held to maturity.
The main question is whether that 56-day timeline matches your cash plans.
If you expect to need the money around the maturity date, the fixed term gives
you a specific point at which the investment ends. If you need unrestricted
access before then, remember that selling a Treasury bill before maturity can
expose you to changes in its market price.
Before buying, check the auction terms, purchase price, maturity date,
tax treatment and your need for liquidity. If you plan to reinvest,
remember that the next 8-week Treasury bill can have a different auction yield.
For a broader look at Treasury securities and their different maturities,
continue with our
complete Treasury bills guide
.
Related Resources & Authority Sources
If you want to go deeper after reading this guide, these resources cover
Treasury bill mechanics, pricing, comparisons and tax rules. The internal
guides help you explore related short-term investing topics, while the
government sources provide primary information about Treasury securities
and taxation.
FinanceInvestment Guides
Official Sources
Use TreasuryDirect for Treasury security terms and pricing information,
and the IRS for federal tax rules. Auction results and Treasury rates can
change, so check the latest official information before making an investment.
Have a Money Question? Keep Exploring.
Understanding an 8-week Treasury bill is easier when you look beyond the
headline yield. Keep checking the maturity date, purchase price, tax impact
and what you plan to do with the money after 56 days.
Have a Treasury bill, savings or investing question you want us to cover?
Send us a message.