Treasury kept coupon, FRN and TIPS auction sizes unchanged through at least 2027, but a wording shift and higher borrowing estimates sharpened debate over how long rising deficits can be financed with bills.
The U.S. Treasury set a $125 billion quarterly refunding and said it would raise about $28.7 billion in net new cash, while keeping auction sizes for coupon securities, FRNs and TIPS unchanged over the coming quarters and extending that guidance at least through 2027. The move matched market expectations and remained consistent with the stance held by Treasury Secretary Scott Bessent since taking office, but investors focused on a wording change in the refunding statement that described future long-term coupon issuance as subject to "changes" rather than "increases," a shift some strategists said could give the department more flexibility later. Treasury also lifted its borrowing estimate for July through September to $739 billion from the $671 billion projected in May, largely because it expects less cash inflow such as tax receipts. Analysts estimate total U.S. federal government debt could top $40 trillion within two weeks if the current borrowing pace continues. Under the refunding plan, Treasury will sell $58 billion in 3-year notes, $42 billion in 10-year notes and $25 billion in 30-year bonds next week. With longer-term auction sizes held steady, incremental funding needs are expected to keep being met largely with Treasury bills, a strategy traders have dubbed "T-bill and Chill" because it avoids adding long-end supply that could put upward pressure on yields. That approach supports money market funds and other cash investors, and is backed by demand from roughly $8.3 trillion in money market funds as well as Federal Reserve reinvestment of maturing MBS principal into Treasury bills. But it also leaves the government more exposed to refinancing and interest-rate risk. Bank of America estimates the bill share of outstanding debt could rise to nearly 25% by the end of fiscal 2027 if coupon sizes remain unchanged, versus the Treasury Borrowing Advisory Committee's recommended average of around 20%. The Treasury Borrowing Advisory Committee has urged Treasury to preserve more flexibility and said current projections may require coupon auction increases starting in fiscal 2027. Many primary dealers have similarly warned that delaying adjustments could force larger and more abrupt increases later, potentially causing a bigger shock to the bond market.