Buying Treasury Bills On TreasuryDirect: A Beginner’s Guide

Quick answer

• Treasury bills (T-bills) are short-term U.S. government debt securities with maturities of one year or less.
• TreasuryDirect is the U.S. Treasury’s official website for purchasing securities directly from the government.
• Buying T-bills offers a safe way to earn interest on your savings, backed by the full faith and credit of the U.S. government.
• You can purchase T-bills in increments of $100, with no state or local income tax on the interest earned.
• Setting up a TreasuryDirect account is the first step to buying T-bills.
• You can invest in T-bills through auctions or by purchasing them on the secondary market after they are issued.

Who this is for

• Individuals looking for a safe place to park cash while earning a modest return.
• Investors who want to preserve capital and avoid the risks associated with the stock market.
• Those who want to earn interest on funds they may need in the short to medium term (up to one year).

What to check first (before you act)

Goal and timeline

Before you buy any Treasury bill, clarify why you are investing and when you might need the money back. Are you saving for a down payment in six months, or do you have a larger sum you want to keep safe for a year? Your timeline will influence which T-bill maturity (e.g., 4-week, 8-week, 13-week, 17-week, 26-week, or 52-week) is most appropriate. Investing money you might need sooner in a longer-term T-bill could mean selling it before maturity, which might incur a small loss if interest rates have risen.

Current cash flow

Understand your current income and expenses. Do you have enough cash coming in to cover your bills and immediate needs? T-bills are generally considered a safe investment, but they represent money that is tied up until maturity. Ensure you have sufficient liquidity in your checking or savings accounts for everyday expenses and unexpected costs before allocating funds to T-bills.

Emergency fund or safety buffer

Do you have an emergency fund in place? This is a critical prerequisite. An emergency fund typically covers 3-6 months of living expenses and should be held in a highly liquid, easily accessible account like a high-yield savings account. T-bills are less liquid than savings accounts, so they are not ideal for emergency funds. Make sure your emergency fund is fully funded before considering T-bills for other savings goals.

Debt and interest rates

Review any outstanding debts you have, especially high-interest ones like credit card debt. The interest rate you are paying on debt is often higher than the rate you can earn on a T-bill. It generally makes more financial sense to pay down high-interest debt before investing in low-yield, safe assets. Check the interest rates on your debts and compare them to current T-bill yields.

Credit impact

Buying Treasury bills directly from the U.S. Treasury does not directly impact your credit score. Your credit score is primarily influenced by your credit history, payment behavior, and amounts owed on credit accounts. Investing in T-bills is a form of saving or investing, not borrowing, so it won’t appear on your credit report or affect your score.

Step-by-step (simple workflow)

Step 1: Determine your investment amount

What to do: Decide how much money you want to invest in Treasury bills.
What “good” looks like: You have identified a specific dollar amount that you can afford to tie up until the T-bill matures, and this amount aligns with your savings goals.
A common mistake and how to avoid it: Investing money needed for immediate expenses. Avoid this by first ensuring your emergency fund is robust and your essential bills are covered.

Step 2: Set up a TreasuryDirect account

What to do: Visit the official TreasuryDirect website and follow the instructions to create a personal account. You will need to provide personal information, including your Social Security number, and link a bank account for purchases and redemptions.
What “good” looks like: Your account is successfully created, verified, and linked to your bank account, ready for transactions.
A common mistake and how to avoid it: Using an unofficial website or falling for phishing scams. Always ensure you are on the official TreasuryDirect.gov website.

Step 3: Choose the type of Treasury bill

What to do: Decide which T-bill maturity best suits your needs: 4-week, 8-week, 13-week, 17-week, 26-week, or 52-week.
What “good” looks like: You’ve selected a maturity that matches your timeline for needing the funds.
A common mistake and how to avoid it: Choosing a maturity that is too long for funds you might need unexpectedly. Avoid this by carefully considering your liquidity needs.

Step 4: Decide on purchase method (auction vs. secondary market)

What to do: For direct purchases, you’ll typically buy T-bills at auction through TreasuryDirect. You can also buy them on the secondary market through a broker, but for beginners, TreasuryDirect is simpler.
What “good” looks like: You understand that TreasuryDirect allows you to buy directly from the Treasury at auction.
A common mistake and how to avoid it: Getting confused by secondary market trading if you are a beginner. Stick to TreasuryDirect’s auction process for simplicity.

Step 5: Place your T-bill order

What to do: Log in to your TreasuryDirect account and navigate to the “Buy Direct” section. Select “Bills” and follow the prompts to enter your desired purchase amount and choose the maturity. You will typically place a bid at auction.
What “good” looks like: Your order is submitted correctly, and you receive a confirmation.
A common mistake and how to avoid it: Entering incorrect purchase amounts or selecting the wrong maturity. Double-check all details before submitting your order.

Step 6: Fund your purchase

What to do: TreasuryDirect will debit the purchase amount from your linked bank account on the settlement date.
What “good” looks like: Your bank account has sufficient funds on the settlement date to cover the T-bill purchase.
A common mistake and how to avoid it: Insufficient funds in your linked bank account on the settlement date. Ensure the money is available to avoid a failed transaction.

Step 7: Track your investment

What to do: Log in to your TreasuryDirect account periodically to view your holdings, maturity dates, and accrued interest.
What “good” looks like: You can easily access information about your T-bill investments.
A common mistake and how to avoid it: Forgetting about your investments. Regularly checking your account ensures you are aware of when your T-bills mature.

Step 8: Manage maturity

What to do: When your T-bill matures, TreasuryDirect will automatically deposit the principal and interest into your linked bank account. You can choose to reinvest the funds in another T-bill or transfer them elsewhere.
What “good” looks like: The funds are returned to your bank account on the maturity date, and you have a plan for what to do with them next.
A common mistake and how to avoid it: Not having a plan for the matured funds, leading to them sitting idle in your bank account. Decide in advance whether you will reinvest or use the money.

Common mistakes (and what happens if you ignore them)

Mistake	What it causes	Fix
Investing emergency fund money	Lack of liquidity during unexpected events, forcing sale of T-bills at a potential loss or incurring fees.	Keep your emergency fund in a highly liquid savings account. Only invest funds you won’t need for at least the T-bill’s maturity period.
Not understanding maturity dates	Forgetting when funds become available, potentially missing out on reinvestment opportunities or needing the cash.	Keep a calendar reminder or use TreasuryDirect’s account features to track maturity dates. Have a plan for reinvestment or use.
Investing money needed in the short term	Needing to sell T-bills before maturity, potentially incurring penalties or selling at a loss if rates have risen.	Choose T-bill maturities that align with your known spending timelines. For funds needed within weeks, shorter maturities are better.
Failing to secure your TreasuryDirect account	Unauthorized access to your account, leading to potential loss of funds or fraudulent activity.	Use a strong, unique password, enable two-factor authentication if available, and never share your login credentials.
Misunderstanding how interest is paid	Expecting regular interest payments instead of receiving it at maturity, leading to surprise.	T-bills are “discount” securities; you buy them for less than face value, and the difference is your interest paid at maturity.
Not checking for T-bill auctions	Missing out on opportunities to purchase directly from the Treasury at auction prices.	Regularly check the TreasuryDirect website for auction schedules and offerings.
Ignoring credit card debt	Paying high interest on debt while earning low interest on T-bills, resulting in a net financial loss.	Prioritize paying down high-interest debt before investing in low-yield safe assets.
Assuming T-bills are risk-free from <em>all</em> perspectives	While default risk is virtually zero, inflation risk exists if T-bill yields are lower than inflation.	Understand that “safe” doesn’t mean “risk-free” from inflation. Consider this when setting expectations for returns.
Not linking a bank account properly	Inability to fund purchases or receive redemption proceeds.	Carefully follow the instructions for linking your bank account and ensure the details are accurate.
Investing all savings in T-bills	Lack of diversification, potentially missing out on higher growth opportunities elsewhere.	T-bills are a component of a balanced financial plan, not the entire strategy. Diversify your investments.

Decision rules (simple if/then)

• If you have high-interest debt (like credit cards), then pay it down first because the interest saved is usually a higher guaranteed return than T-bill yields.
• If you might need the money within a few weeks, then choose a shorter-term T-bill (e.g., 4-week or 8-week) because it offers liquidity sooner.
• If you have a specific savings goal with a known timeline of less than one year, then select a T-bill maturity that closely matches that timeline because it minimizes the risk of needing to sell early.
• If you are seeking the absolute safest place to park cash for a short period, then Treasury bills are a good option because they are backed by the U.S. government.
• If you are uncomfortable with market volatility and prioritize capital preservation, then T-bills are suitable because their principal value is protected.
• If you are looking for a tax-advantaged investment, then consider that T-bill interest is exempt from state and local income taxes because this can increase your effective yield.
• If you have a substantial emergency fund already established, then investing surplus cash in T-bills for short-term goals is a reasonable next step because your immediate needs are covered.
• If you are unsure about managing an investment account, then TreasuryDirect’s straightforward interface for buying T-bills is a good starting point because it’s designed for direct retail investors.
• If you are considering investing for longer than one year, then T-bills are not the primary tool because their maturities are one year or less; consider Treasury notes or bonds for longer terms.
• If you want to avoid the fees and bid-ask spreads associated with buying government securities through a broker, then buying directly on TreasuryDirect is preferable because it eliminates these intermediary costs.
• If you are concerned about inflation eroding the purchasing power of your savings, then be aware that T-bill yields may sometimes be lower than the rate of inflation, meaning your real return could be negative.

FAQ

What is a Treasury bill (T-bill)?

A Treasury bill is a short-term debt obligation of the U.S. Department of the Treasury. They are sold at a discount to their face value and pay the face value upon maturity. Maturities range from four weeks to 52 weeks.

Is buying T-bills on TreasuryDirect safe?

Yes, T-bills are considered one of the safest investments available because they are backed by the full faith and credit of the U.S. government. TreasuryDirect is the official government platform for purchasing these securities.

How do I make money with T-bills?

You buy T-bills at a discount (less than their face value). When the T-bill matures, you receive the full face value. The difference between the purchase price and the face value is your interest.

What are the minimum and maximum investment amounts for T-bills?

The minimum investment amount for Treasury bills is typically $100. There is a maximum purchase limit per auction, but it is generally quite high and unlikely to be a concern for individual retail investors.

Are T-bills subject to taxes?

The interest earned on Treasury bills is subject to federal income tax but is exempt from state and local income taxes. This exemption can make them particularly attractive for residents of high-tax states.

What happens if I need my money before the T-bill matures?

You can sell your T-bill on the secondary market before its maturity date. However, the price you receive may be more or less than what you paid, depending on prevailing interest rates. It’s generally best to hold T-bills until maturity if you need guaranteed principal.

How do I get my money back after a T-bill matures?

When your T-bill matures, the principal amount plus any accrued interest is automatically deposited into your linked bank account on the maturity date.

Can I buy T-bills for my IRA or other retirement accounts?

TreasuryDirect accounts are for non-retirement individual investments. To hold T-bills within an IRA or other retirement account, you would typically need to purchase them through a brokerage firm that offers IRAs.

What is the difference between a T-bill and a Treasury Note or Bond?

T-bills have maturities of one year or less. Treasury Notes have maturities from two to 10 years, and Treasury Bonds have maturities of more than 10 years.

What this page does NOT cover (and where to go next)

• Longer-term U.S. Treasury securities: This guide focuses on bills (under one year). For investments longer than one year, explore Treasury Notes and Bonds.
• T-bills purchased through a brokerage account: This guide covers buying directly on TreasuryDirect. Brokerages offer T-bills and may provide different features or reporting.
• Inflation-protected securities (TIPS): This guide does not cover TIPS, which adjust their principal value based on inflation.
• Advanced TreasuryDirect features: TreasuryDirect offers other securities like savings bonds and electronic savings bonds, which are not detailed here.
• Tax implications for specific situations: While state and local tax exemptions are mentioned, complex tax scenarios or reporting for specific professions are beyond this guide’s scope. Consult a tax professional.