Treasury auction calendar for May 2026: refunding week, 10-year and 30-year dates
May 2026 is a quarterly refunding month with the refunding announcement on May 6, a new 10-year note auction on May 12, a new 30-year bond auction on May 13, and a 20-year bond auction on May 20. This is the kind of month rates traders search because new supply, sizing and duration appetite can all reset at once.
scheduled events in this month
Quarterly refunding announcement and six-month auction schedule release
TreasuryDirect says the schedule of Treasury securities auctions is released at the quarterly refunding press conference, usually held on the first Wednesday of February, May, August, and November. In 2026, the May refunding date falls on Wednesday May 6.
3-year Treasury note auction
Announcement date: May 6, 2026.
Auction date: May 11, 2026.
Settlement date: May 15, 2026.
Treasury's official tentative auction calendar lists the May 2026 3-year note announcement on May 6, auction on May 11, and settlement on May 15.
10-year Treasury note auction
Announcement date: May 6, 2026.
Auction date: May 12, 2026.
Settlement date: May 15, 2026.
Treasury's official tentative auction calendar lists the May 2026 10-year note announcement on May 6, auction on May 12, and settlement on May 15.
30-year Treasury bond auction
Announcement date: May 6, 2026.
Auction date: May 13, 2026.
Settlement date: May 15, 2026.
Treasury's official tentative auction calendar lists the May 2026 30-year bond announcement on May 6, auction on May 13, and settlement on May 15.
20-year Treasury bond auction
Announcement date: May 14, 2026.
Auction date: May 20, 2026.
Settlement date: June 1, 2026.
Treasury's official tentative auction calendar lists the May 2026 20-year bond announcement on May 14, auction on May 20, and settlement on June 1 because May 31 falls on a weekend.
Why refunding months matter more
Quarterly refunding months matter because Treasury is not only auctioning paper. It is also telling the market how it expects financing to look over the next several months. That changes the way traders read duration supply and term-premium risk together.
When rates desks search the refunding date, they are usually looking for more than a calendar reminder. They are trying to locate the next real supply-and-signaling event for the long end.
What traders usually care about in May
The critical read is whether the 10-year and 30-year auctions clear with healthy demand after the refunding announcement. A clean result helps duration-sensitive assets stabilize, while a weak result can spill into TLT, USDJPY and equity multiples almost immediately.
That is why May's sequence matters as a cluster rather than as isolated dates. The refunding announcement frames the supply conversation, and the auctions test it.