Treasury Bill Ladder: How to Build One Step by Step

A Treasury bill ladder is a portfolio of U.S. Treasury bills with different maturity dates. Instead of investing all your money in one T-bill, you divide it among several bills that mature at scheduled intervals.

As each bill matures, you can:

• Spend the proceeds
• Move the money to another account
• Reinvest it in a new Treasury bill
• Adjust the ladder according to current interest rates and your financial needs

A T-bill ladder can provide regular access to portions of your money while reducing the risk of investing everything at a single interest rate. However, it does not eliminate inflation, reinvestment, liquidity, or opportunity-cost risks.

This guide explains how Treasury bill ladders work, how to build one and what to consider before using the strategy.

What Is a Treasury Bill?

A Treasury bill, commonly called a T-bill, is a short-term marketable security issued by the U.S. Department of the Treasury.

Regular T-bills are available with maturities of:

• 4 weeks
• 6 weeks
• 8 weeks
• 13 weeks
• 17 weeks
• 26 weeks
• 52 weeks

Unlike conventional bonds that make periodic coupon payments, Treasury bills are commonly sold for less than their face value. At maturity, the investor receives the bill’s full face value. The difference between the purchase price and face value represents the interest earned.

For example, suppose you purchase a $1,000 Treasury bill for $990. When it matures, you receive $1,000, producing $10 of interest.

The actual auction price and investment yield will vary. The TreasuryDirect explanation of marketable securities provides current information about Treasury bill terms and how they work.

What Is a Treasury Bill Ladder?

A Treasury bill ladder divides an investment across multiple T-bills that mature on different dates.

Imagine that you have $10,000 to invest. Instead of purchasing a single 26-week bill, you might divide the money among bills with approximately these maturities:

This is a simplified example. Auction and settlement dates may prevent the maturities from falling at perfectly equal intervals.

When the first bill matures, you could use the proceeds or reinvest them in a longer bill. Repeating the process can create a rolling schedule of maturity dates.

How a Treasury Bill Ladder Works

A ladder generally has three basic components.

1. Multiple Rungs

Each Treasury bill represents a rung of the ladder. Every rung has a different maturity date.

More rungs may provide more frequent access to money, but they also require more transactions and recordkeeping.

2. Scheduled Maturities

The bills mature at planned intervals. Depending on how the ladder is constructed, maturities might occur weekly, monthly or every few months.

3. A Reinvestment Plan

When a rung matures, you decide whether to reinvest it.

If the money is not needed, you may purchase another T-bill at the longest end of the ladder. If you need cash, you can allow the proceeds to move to your designated bank or brokerage account.

A ladder is therefore a process rather than a one-time purchase.

Two Ways to Create a Treasury Bill Ladder

There is no universal structure that suits every investor. Two common approaches are a mixed-maturity ladder and a same-term rolling ladder.

Option 1: Mixed-Maturity Ladder

With this method, you purchase bills of different terms at approximately the same time.

For example:

• 4-week T-bill
• 8-week T-bill
• 13-week T-bill
• 17-week T-bill

The benefit is that most of the money can be invested promptly while still creating several maturity dates.

The disadvantage is that the intervals may not be perfectly even. Each rung may also have a different auction yield.

Option 2: Same-Term Rolling Ladder

With this approach, you buy the same T-bill term at regular intervals.

For example, you could build a four-rung ladder using 4-week T-bills:

• Invest the first portion in week one
• Invest the second portion in week two
• Invest the third portion in week three
• Invest the fourth portion in week four

After the ladder is established, one bill should mature approximately every week. Each maturing bill can then be rolled into a new 4-week bill.

This structure creates more consistent intervals, but it takes time to establish and requires regular management.

How to Build a Treasury Bill Ladder Step by Step

Step 1: Define the Purpose of the Money

Determine why you are considering a T-bill ladder.

Possible purposes include:

• Holding cash for a future purchase
• Creating regular maturity dates
• Temporarily investing money while preserving flexibility
• Managing a portion of a conservative portfolio
• Holding funds that are not required for immediate expenses

A Treasury bill ladder should not automatically replace emergency savings. If the money may be needed immediately, an accessible savings account may be more suitable.

Our comparison of a high-yield savings account and a CD explains how liquidity and fixed terms affect short-term savings decisions.

Step 2: Choose the Total Amount

Decide how much money can be committed without creating a cash shortage.

TreasuryDirect permits purchases of Treasury marketable securities with a minimum bid of $100, followed by increments of $100. Noncompetitive bids may be made up to $10 million per auction, according to the TreasuryDirect purchasing rules.

Do not invest money needed for upcoming bills merely because a Treasury security is backed by the federal government. Maturity timing and access still matter.

Step 3: Select the Number of Rungs

Choose how many separate bills the ladder will contain.

For example:

• A three-rung ladder requires less management.
• A four-rung ladder provides four maturity dates.
• A 12-rung ladder may provide monthly access but requires more transactions.

The number of rungs should reflect the amount available, desired frequency of access and time you can devote to managing the ladder.

Step 4: Select the Maturities

Match the maturity schedule to the date when you may need the money.

A short ladder might use:

• 4-week bills
• 8-week bills
• 13-week bills
• 17-week bills

A longer short-term ladder might combine:

• 13-week bills
• 26-week bills
• 52-week bills

Do not select maturities solely because one currently offers a higher yield. Your planned access dates should remain the primary consideration.

Step 5: Choose Where to Buy the Bills

You can generally purchase Treasury bills through:

• TreasuryDirect
• A brokerage
• A bank or securities dealer

Buying Through TreasuryDirect

TreasuryDirect is the federal government’s platform for buying and holding Treasury securities.

Advantages may include:

• Direct participation in Treasury auctions
• $100 minimum purchase
• No separate brokerage account
• Ability to schedule T-bill reinvestments

However, TreasuryDirect is primarily designed for buying and holding securities. A newly purchased marketable Treasury security generally must remain there for at least 45 calendar days before it can be transferred or sold. To sell before maturity, it normally must first be transferred to a bank, broker or dealer.

That limitation is especially important when using very short-term bills.

Buying Through a Brokerage

A brokerage may offer:

• New-issue Treasury auctions
• Secondary-market Treasury securities
• Easier integration with other investments
• The ability to sell before maturity
• Automated or simplified reinvestment tools

Broker policies, fees, minimums, secondary-market spreads and auto-roll features vary. Review the brokerage’s terms before purchasing.

Step 6: Place the Purchases

If you purchase through TreasuryDirect, you normally submit a noncompetitive bid. This means you agree to accept the rate or yield determined at the auction and are guaranteed the requested security, subject to applicable limits.

Through a broker, you may have access to both auctions and the secondary market.

Before confirming an order, verify:

• Face amount
• Maturity date
• Auction or settlement date
• Source of funds
• Reinvestment instructions
• Whether the bill is new or previously issued
• Any brokerage fee or spread

Step 7: Record Every Maturity Date

Create a simple spreadsheet or calendar containing:

• Purchase date
• Face value
• Amount paid
• Maturity date
• Expected destination of proceeds
• Reinvestment decision
• Tax information

Do not rely exclusively on memory or an email notification. Missing a maturity date may result in cash sitting uninvested or an unwanted reinvestment.

Step 8: Decide What Happens at Maturity

For each rung, choose one of three actions:

1. Reinvest the entire amount.
2. Withdraw the entire amount.
3. Withdraw part and reinvest the remainder, where the platform and purchase increments permit it.

TreasuryDirect allows bills to be scheduled for multiple reinvestments. The maximum number depends on the bill’s original term. Reinvestment instructions can generally be changed or cancelled until four business days before the relevant auction. Review the official TreasuryDirect reinvestment instructions before relying on automation.

Example: Building a $10,000 T-Bill Ladder

Suppose Jordan has $10,000 that will not be needed immediately but may be used within the next year.

Jordan chooses four rungs:

Because T-bills are ordinarily bought at a discount, the amount withdrawn from the funding account may be slightly less than the combined $10,000 face value.

When rung one matures, Jordan reviews:

• Current T-bill yields
• Upcoming expenses
• Emergency cash balance
• Alternative savings rates
• Whether the original goal has changed

If the money is still not needed, Jordan can purchase another bill and place its maturity at the end of the ladder.

This process repeats as each rung matures.

The example illustrates the mechanics only. It is not a recommended allocation, and actual auction dates may create different maturity intervals.

How to Calculate Treasury Bill Earnings

The basic dollar return on a T-bill held to maturity is:

Interest earned = Face value − Purchase price

For example:

• Face value: $2,500
• Hypothetical purchase price: $2,475
• Amount received at maturity: $2,500
• Interest earned: $25

This does not mean the investment earned 1% annually. The holding period must be considered when converting the dollar return into an annualized yield.

Treasury bills may also be quoted using different yield conventions, including discount rates and investment rates. For comparisons, use the same yield measure across products and consider the actual holding period.

Benefits of a Treasury Bill Ladder

Regular Access to Portions of the Money

Because the bills mature on different dates, the entire balance is not locked until one final maturity.

Reduced Reinvestment Timing Risk

Investing everything on one day exposes the full amount to that day’s available rate. A ladder spreads reinvestment decisions across multiple dates.

This does not guarantee a better return. It simply reduces dependence on one purchase date.

High Credit Quality

Treasury securities are backed by the full faith and credit of the U.S. government and are generally considered to have low default risk.

Low credit risk does not mean no risk. Market values can change, inflation can reduce purchasing power and access may be limited before maturity.

Predictable Maturity Values

When a T-bill is held to maturity, the investor knows its face value. That can be useful when matching maturities with planned expenses.

Potential State and Local Tax Advantage

Interest from Treasury bills is subject to federal income tax but is generally exempt from state and local income taxes, according to the IRS guidance on interest income.

Individual circumstances vary, so consult a qualified tax professional when necessary.

Risks and Limitations

Reinvestment Risk

When a bill matures, newly available yields may be lower. Reinvesting could therefore produce less income.

Inflation Risk

Even if the dollar amount increases, inflation may reduce the money’s purchasing power.

Liquidity Risk

A T-bill can generally be sold in the secondary market, but its price before maturity can differ from its face value. TreasuryDirect also has transfer restrictions that can make early sale less convenient.

Interest-Rate Risk

If market rates rise after a bill is purchased, its secondary-market value may decline. The effect is usually smaller for short-term bills than for long-term bonds, but it is not zero.

Opportunity Cost

Money placed in a Treasury ladder cannot simultaneously be used for another investment or financial goal.

Administrative Work

A ladder may require:

• Several purchases
• Multiple maturity dates
• Reinvestment decisions
• Tax records
• Auction monitoring

Automation can reduce the work but does not eliminate the need for review.

Treasury Bill Ladder vs. CD Ladder

Both strategies divide money among instruments with different maturity dates, but they are not identical.

A CD may be easier to understand and can offer a known early-withdrawal penalty. A Treasury bill may provide greater market liquidity through a brokerage, but its sale price is not guaranteed.

Treasury Bill Ladder vs. Bond Ladder ETF

A Treasury bill ladder consists of individual securities with identifiable maturity dates. A bond ladder ETF is a pooled investment fund whose structure, holdings, fees and market price are managed at the fund level.

With individual T-bills held to maturity, each rung returns its face value on a known date. An ETF trades continuously and its market price can fluctuate.

An ETF may be more convenient, but convenience does not make it equivalent to owning individual Treasury bills. Review our guide to the bond ladder ETF strategy for a detailed comparison of fund-based laddering.

Is a Treasury Bill Ladder Right for You?

A ladder may be worth considering when:

• You have money that is not needed immediately.
• You want several scheduled maturity dates.
• You are comfortable managing multiple securities.
• You understand that future reinvestment rates are unknown.
• You prefer direct exposure to short-term U.S. Treasury securities.
• The maturity schedule corresponds with your financial goals.

It may be unsuitable when:

• You require immediate access to the entire balance.
• You do not have separate emergency savings.
• The administrative work outweighs the potential benefit.
• You may need to sell TreasuryDirect holdings before the transfer restriction ends.
• You are seeking long-term growth rather than short-term capital management.

Before selecting any investment, consider your time horizon, financial capacity and investment risk tolerance.

Frequently Asked Questions

How much money do I need to build a Treasury bill ladder?

TreasuryDirect permits marketable Treasury purchases starting at $100 in increments of $100. A useful ladder may require more because the total must be divided among multiple rungs.

Are Treasury bills risk-free?

No investment should be described as completely risk-free. T-bills have low credit risk, but they remain exposed to inflation, reinvestment, liquidity, interest-rate and opportunity-cost risks.

Can I lose money on a Treasury bill?

If held to maturity, a conventional T-bill pays its stated face value, subject to the federal government meeting its obligations. If sold before maturity, its market price could be above or below the amount originally paid.

How many rungs should a T-bill ladder have?

There is no ideal number. The appropriate structure depends on the amount invested, desired access frequency, auction availability and purpose of the money.

Can TreasuryDirect automatically reinvest T-bills?

Yes. TreasuryDirect permits scheduled reinvestments for bills, although the allowed number depends on the term. Instructions must be established or changed within the platform’s deadlines.

Are Treasury bill earnings taxable?

T-bill interest is generally subject to federal income tax but exempt from state and local income taxes. Additional tax considerations may apply depending on the account and taxpayer.

Is a Treasury bill ladder better than a savings account?

Neither is universally better. A savings account generally provides easier access and an adjustable APY. A T-bill ladder provides scheduled maturities and Treasury exposure but requires more management. Compare liquidity, rates, taxes, insurance, fees and your timeline.

Final Thoughts

A Treasury bill ladder divides money among short-term U.S. government securities with different maturity dates. The strategy can provide scheduled access to cash while spreading purchases and reinvestment decisions across several dates.

Its usefulness depends more on structure than on chasing the highest available yield.

Start by identifying when the money may be needed. Select maturities that correspond with those dates, maintain separate emergency savings and understand how your chosen purchasing platform handles early sales and reinvestments.

A well-designed ladder should support a specific financial purpose. If its maturity schedule, administrative work or liquidity limitations do not match that purpose, a simpler savings product or fund may be more appropriate.

This article is for educational purposes and does not constitute personalized financial, investment, tax or legal advice. Treasury rates, auction schedules, brokerage policies and tax rules may change. All investments involve risk, including the possible loss of principal when securities are sold before maturity.