Treasury Bill Ladder: Staggered Maturities and Reinvestment

A Treasury bill is a short-term U.S. government security sold at a discount or at face value. It pays face value at maturity; the difference between the amount paid and the amount received is the bill's interest. Treasury currently lists regular bill terms of 4, 6, 8, 13, 17, 26, and 52 weeks. A ladder combines several separate bills whose maturity dates do not all fall together. Each bill still has its own auction price and maturity date.

The useful feature is the timing of principal becoming due. A single bill can concentrate a large cash need on one date, while several staggered bills can create more than one planned maturity. That is a schedule choice, not a promise of a higher average yield. The rate on each bill is set at its own purchase, and a future bill's rate is unknown until that later purchase. A ladder also does not automatically provide daily liquidity: money invested in a bill remains committed until maturity unless the security is sold through an available secondary-market route.

For more detail on bill conventions, see TreasuryDirect’s bill FAQs.

Consider four hypothetical 13-week bills bought or issued four weeks apart. Every bill has a 13-week term; the purchase dates, rather than the terms, are staggered. In a simplified week-count, the first maturity arrives in week 13, then the next three arrive in weeks 17, 21, and 25. Once the schedule is established, one rung comes due about every four weeks.

If each maturing rung is replaced with another 13-week bill, the spacing can continue. In practice, the exact dates follow the auction's issue and maturity dates, business days, and holidays. Treasury auctions several bill terms weekly, but the published schedule can change. Use the actual issue and maturity dates from the current auction calendar rather than assuming that 'three months' is exactly 13 weeks or that a maturity will fall on a convenient calendar day.

List planned payments, minimum cash reserves, and the dates when funds must be available. Select maturities that come due before those dates with enough time for your account's processing and transfer rules. If a tuition payment is due on a particular day, a bill maturing that morning may leave too little operational room. A buffer in a bank or brokerage cash balance can cover the gap without selling a bill early.

A ladder does not make every dollar available on every rung date. The rungs that have not matured are still securities. If your spending date is uncertain, keep a separate reserve or choose shorter maturities for the amount that may be needed sooner. Compare a ladder's cash dates with your real calendar, not only with a desired yield or a neat monthly pattern. Exact auction dates and settlement conventions should be checked before placing an order.

For a simplified bill pricing example, Treasury's discount convention uses P = 100 × (1 − d × r / 360), where P is price per $100 of face value, d is the discount rate as a decimal, and r is days to maturity. With a hypothetical 4% discount rate and 91 days, P = 100 × (1 − 0.04 × 91 / 360) = about $98.98889. A $10,000 face amount would therefore cost about $9,898.89 and pay $10,000 at maturity, a $101.11 difference before any account-level costs or tax effects.

If four such rungs all had that same hypothetical price, $40,000 of face value would require about $39,595.56 at purchase. This is only a transparent arithmetic illustration: four actual auctions may clear at different prices, and the bills are purchased on different dates. The $101.11 is the dollar difference between purchase price and face value for that bill, not a promise about a future annual yield. The bank-discount calculation uses face value and a 360-day convention; compare yield labels carefully. See Treasury's bill pricing explanation and the auction rule's price formula.

A bill's maturity payment can fund a planned expense, replenish your reserve, or buy another bill. TreasuryDirect allows a holder to redeem a bill or schedule reinvestment into another bill of the same term. Its instructions say a reinvestment can be scheduled when the original bill is bought or up to four business days before it matures. That setting does not specify the future auction yield; the next bill is priced at its own auction.

For a ladder, make the decision rung by rung. A fixed expense may call for redemption, while a surplus rung may be rolled into a new bill. If all matured proceeds are automatically reinvested, the ladder keeps exposure but may not produce the cash you expected. If you turn off reinvestment, the cash may sit idle until you place another order. Rules and screens differ by bank or broker, so check where maturity proceeds go, how to change an instruction, and what cutoff applies. TreasuryDirect's reinvestment guidance describes its own account process.

When market rates rise, a maturing rung may be reinvested at a higher auction rate, while bills that have not matured keep their original terms. A staggered schedule introduces the new rate gradually. Rolling one large bill instead can expose the whole balance to one reinvestment date. That difference changes the timing and size of rate resets; it does not establish which structure will earn more over a chosen period.

When rates fall, later reinvestments may earn less than earlier rungs. The ladder spreads those reset dates, but it does not preserve today's rate on bills that have not yet been purchased. A longer maturity locks its own bill's discount rate for that term but delays access to its principal. If you sell a bill before maturity, its market price can be above or below your purchase price. Maturity planning addresses timing and reinvestment; it is not a forecast or a hedge against every change in purchasing power.

Treasury bills can be sold before maturity, but access depends on where the bill is held and on the market price at the time of sale. TreasuryDirect says a bill held there must first be transferred to a bank, broker, or dealer before the holder asks that institution to sell it. A broker may have different trading, transfer, settlement, and fee rules. Do not treat an early sale as equivalent to receiving face value at maturity.

Before selecting an account, compare the bill terms it offers, auction access, minimums, automatic reinvestment controls, maturity cash routing, statements, transfer steps, and costs. TreasuryDirect and brokerage accounts do not necessarily offer the same workflow. Check current provider terms instead of relying on an older tutorial. You can review current bill terms, the auction calendar, and TreasuryDirect's early-sale steps.

A ladder can suit someone who wants a series of planned maturity dates and is willing to track several holdings. Rolling one bill may be simpler when the entire amount can stay invested until a single date and the owner is comfortable reinvesting the balance together. A cash reserve is more direct for bills due before the next maturity. Money-market funds, bank deposits, brokered CDs, and Treasury bills differ in liquidity, pricing, guarantees, and account treatment; a familiar label or a headline rate does not make them interchangeable.

A practical review asks: which amounts must be available, on what dates, and how much can remain invested? Then confirm current issue dates, the bill's price and term, the account's reinvestment rule, and the route for obtaining cash early. For auction-rate context, see how to read Treasury auction results; for a different zero-coupon instrument, see Treasury STRIPS. Neither the schedule nor the calculation is an individualized recommendation.