U.S. Treasury refunding plans keep 2027 auction changes in focus

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U.S. Treasury refunding 2027 auction

Highlights

The U.S. Treasury will announce Q4 and early 2027 financing plans this week, with no immediate change expected in coupon auction sizes.
Market participants anticipate potential reductions in 20-year and 30-year bond issuance and increased 2- to 10-year issuance, but changes likely start no earlier than August 2027.
TD Securities forecasts $678 billion in net bill supply for November 2026 to January 2027, with bills projected to reach 24% of the Treasury market, exceeding Treasury Borrowing Advisory Committee recommendations.

Refunding timeline and likely issuance shifts

As reported by Reuters, the Treasury releases its quarterly financing estimates on Monday and follows with its refunding announcement on Wednesday, laying out financing plans for the fourth quarter and the first three months of 2027, including auction sizes for 3-year and 10-year notes and 30-year bonds.

Primary dealers broadly expect no immediate change to coupon auction sizes, but they are increasingly focused on adjustments that could come next year. Market participants expect the Treasury could reduce sales of 20-year and 30-year bonds while increasing issuance of 2-year through 10-year debt to help cover funding needs without adding as much pressure at the long end of the curve.

Guneet Dhingra, head of U.S. rates strategy at BNP Paribas in New York, said expectations have built that the Treasury may foreshadow cuts to long-end auction sizes. He added that, because the Treasury has indicated coupon sizes will stay steady for the next several quarters, any actual change likely comes no earlier than August 2027.

The case for future changes strengthened after the Treasury asked primary dealers in a questionnaire what auction-size adjustments should be considered in light of expected borrowing needs and investor demand. Speculation over reduced 20-year and 30-year issuance has also grown as policymakers face persistent elevation in long-term yields despite larger buybacks in the 10-year to 20-year sector, which have risen to as much as $6 billion.

Deficit funding and market impact

Any shift away from longer-dated borrowing could help limit long-term funding costs by reducing debt supply where yields remain high, although strategists say supply changes alone are unlikely to drive a major rally. Angelo Manolatos, U.S. rates strategist at Wells Fargo, said lower long-end yields would more likely require slower growth, softer growth expectations and lower energy prices.

The Treasury is also expected to lean heavily on short-term bill issuance in the coming quarters. TD Securities forecasts net bill supply of $678 billion for the November 2026 to January 2027 period, and Gennadiy Goldberg, head of U.S. rates strategy at the bank, said heavier bill supply, rising rate expectations and weaker money market fund inflows have already pushed bill yields higher.

Over the medium term, Wells Fargo expects Treasury bills to account for 24% of the Treasury market, above the pre-pandemic level and near the post-World War Two average of 23%. That would sit above the 15% to 20% range recommended by the Treasury Borrowing Advisory Committee.

The expected increase in bill issuance comes as borrowing needs remain broadly stable. Since the last refunding announcement in August, the fiscal year 2026 deficit has come in at $1.992 trillion, and J.P. Morgan expects the 2027 deficit to stay near $1.960 trillion, with limited clarity on additional fiscal packages or financing changes tied to Tuesday's U.S. midterm elections.

In our earlier article on rising long-term Treasury yields and deficit strain, we discussed how yields above 5% were filtering through to higher mortgage rates, steeper federal interest costs, and tighter financial conditions. We also noted that with annual deficits near $2 trillion and political gridlock after the midterms, prospects for a near-term fiscal deal to meaningfully ease borrowing pressure looked limited.

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