The US Treasury Department will draw on its General Account to finance an expanded bond buyback program, with Secretary Scott Bessent announcing a significant increase in the scale of operations targeting longer-dated nominal coupon securities.

The decision comes as the government grapples with elevated long-term borrowing costs. The yield on 30-year Treasuries touched 5.31% on August 17, the highest level since 2007. Long-dated Treasury yields act as the benchmark for borrowing costs across the economy, from mortgages to corporate bonds, and they also feed directly into the government's own interest expense: total federal debt recently surpassed $37 trillion, and net interest outlays, running at roughly $1 trillion a year, now rank among the largest line items in the federal budget.

From September 9 through November 4, the Treasury will conduct liquidity-support buybacks with a maximum operation size of at least $4 billion — double the previous cap of $2 billion per operation. Bessent indicated that actual amounts could climb even higher. The window closes just ahead of the Treasury's next quarterly refunding announcement, typically delivered in early November, which is where issuance plans and buyback arrangements are formally set for the following quarter — the first scheduled checkpoint on whether the larger operation sizes are extended.

How the program works

The mechanics are straightforward in concept, if not in scale. The Treasury buys back older, less liquid long-term bonds — commonly described as "off-the-run" securities, which typically trade less actively than newly issued debt — using cash from the Treasury General Account, the government's main checking account at the Federal Reserve. To replenish that account, the Treasury issues additional short-term bills.

The legal authority for these operations stems from 31 U.S.C. Section 3111, which permits both liquidity-support and cash-management buyback operations. The liquidity-support category, under which this program falls, is specifically designed to improve trading conditions in the Treasury market by removing older, harder-to-trade securities from circulation. The Treasury reintroduced regular buyback operations in 2024, reviving a tool it had last employed on a routine basis in the early 2000s.

Scale versus skepticism

Even at $4 billion per operation, total buyback volume for the September-through-November window is estimated at roughly $14 billion for the quarter — a modest sum in a Treasury market whose marketable debt outstanding is measured in the tens of trillions of dollars. Analysts remain skeptical that operations of this size can significantly alleviate the ongoing pressure on yields, particularly in the context of robust debt issuance and prevailing economic conditions.

The funding mechanics introduce their own wrinkle as well. Because each dollar deployed is sourced directly from tax receipts or new debt issuance, the program does not expand the Federal Reserve's balance sheet in the manner of traditional quantitative easing, which relies on the central bank's own large-scale asset purchases.