How to Buy Treasury Bills Through TreasuryDirect or a Broker

Understand the security before choosing a platform

Treasury bills are short-term US government securities with maturities of one year or less. They generally sell at a discount or at par and pay face value at maturity rather than periodic coupon interest. The difference between the purchase price and maturity value produces the interest component. US government backing addresses repayment obligations, but it does not eliminate price risk when selling before maturity. Begin with a written statement of the goal and the date when the money may be needed. Separate what is known from what is only an estimate. A numerical illustration helps explain mechanics, but the assumptions should not be mistaken for terms your provider has promised. Review the actual account agreement and relevant disclosures before applying an example to a live transaction.

For illustration, buying a bill for $9,800 that pays $10,000 at maturity produces $200 before taxes. The holding-period return is approximately 2.04%, using $200 divided by $9,800. Annualized yield depends on the number of days to maturity and the quoting convention. Do not compare a bill’s dollar discount with a savings account’s annual percentage yield without adjusting for time and methodology.

Compare TreasuryDirect with brokerage access

TreasuryDirect allows eligible investors to purchase new Treasury securities directly from the Treasury through auctions. A brokerage can provide auction access and typically offers secondary-market trading as well. Compare account requirements, customer service, fees, reinvestment options, and how easily you can access proceeds. Direct ownership through TreasuryDirect is not the same as holding a Treasury ETF.

TreasuryDirect does not provide a normal secondary-market sell button. Selling a marketable security held there generally requires a transfer to a broker, subject to TreasuryDirect holding and transfer procedures. Those restrictions can make it less suitable for money you might need unexpectedly. A brokerage may offer easier early sales, but spreads, price changes, and account-specific charges can affect proceeds. Use dollars as well as percentages when evaluating the decision. On a $20,000 allocation, a 1% difference equals $200, while a 5% difference equals $1,000. Those amounts may have very different importance for different households. Compare the potential effect with your available cash and other obligations rather than deciding solely from a percentage that sounds small.

Read the auction calendar and submit instructions

New bills are offered through scheduled auctions, with announcement, auction, and issue dates. Check TreasuryDirect’s current calendar for the maturity you want instead of assuming every term auctions daily. Individual investors often submit noncompetitive bids, accepting the auction-determined result subject to program rules. TreasuryDirect purchases generally start at $100 and increase in $100 increments. Check the timing of every relevant step. An instruction entered today may not produce available cash today, and a figure displayed today may describe an earlier period. Weekends, holidays, processing schedules, and account restrictions can matter. Confirm dates directly with the institution instead of relying on a general description when a payment or tax deadline is close.

A noncompetitive bidder does not choose the final yield shown on a quote screen. The auction determines the accepted rate and resulting price. Confirm the purchase amount, funding source, deadline, and issue date before submitting. A displayed recent auction yield is historical information, not a promise that the next auction will deliver the same result. Keep sufficient available funds in the linked account.

Know the difference between face value and cost

An order for $10,000 of face value refers to the amount payable at maturity, not necessarily the debit at purchase. If the auction price is 98.75 per $100 of face value, the purchase cost is $9,875 before any platform-specific charges. The $125 difference is the gross dollar return if held to maturity and paid as promised.

Secondary-market purchases can include different settlement dates and remaining maturities. A bill described by its original term may have only several weeks left when you buy it. Compare the actual maturity date, price, and yield to your spending deadline. A security with a familiar label is not automatically the right match for a bill due on a particular day. Consider the full household picture before adding a new position or process. Existing retirement accounts, taxable investments, employer exposure, debts, and cash reserves can change the practical risk. A decision that looks modest in one account can duplicate exposure elsewhere. Keep a simple consolidated record so that separate platforms do not hide concentration or competing uses for the same money.

Plan taxes and reinvestment mechanics

Treasury interest is generally taxable for federal income tax purposes and exempt from state and local income taxes. Reporting for discounted securities can involve specific rules, particularly when purchased or sold away from a straightforward new-issue hold-to-maturity example. Save statements and tax forms, and consult current IRS guidance when the transaction is more complicated. Tax outcomes depend on account type and individual circumstances. A taxable brokerage account, an IRA, and an employer retirement plan do not follow identical rules. State treatment can also differ from federal treatment. For 2026 decisions, use current IRS instructions and applicable state guidance, and ask a qualified professional about facts that fall outside a straightforward example.

Automatic reinvestment may help maintain a short-term allocation, but it also commits proceeds that might otherwise fund expenses. A sequence of four-week bills does not lock in today’s yield for a year. Future auction rates can fall or rise. If you need $10,000 on a known date, confirm the final maturity and cancel unwanted reinvestments early enough under the platform’s rules.

Keep liquidity and operational risk in view

Treasury bills can be useful for near-term reserves, but cash access depends on where you hold them and when they mature. Brokerage settlement, bank transfers, account verification, and weekends can affect availability. Maintain enough immediately accessible cash for urgent payments rather than assuming a security can be converted and transferred at once. Match the instrument to the actual payment process.

Before the first purchase, write down the maturity date, expected face value, account location, and tax treatment. Start with an amount that allows you to learn the workflow without jeopardizing essential expenses. Review TreasuryDirect’s official auction and transfer instructions, and read your brokerage’s terms. The objective is a predictable cash-management decision, not chasing a quoted yield without understanding access and reinvestment limitations. Write down a review rule before acting. Identify what would cause you to continue, change, or stop the approach, and distinguish an actual change in circumstances from an uncomfortable headline. Preserve confirmations and supporting calculations. A repeatable review process makes it easier to identify mistakes without rewriting the original reasoning after the outcome is already known.

Frequently asked questions