U.S. Treasury

Updated

Summary

The U.S. Department of the Treasury is the federal executive department that collects and accounts for government revenue, borrows to cover the deficit by auctioning Treasury bills, notes and bonds, and administers U.S. economic sanctions through its Office of Foreign Assets Control (OFAC), with FinCEN handling anti-money-laundering rules. Scott Bessent has led it as the 79th Secretary since 2025-01-28. Fiscal year 2026 closed on 2026-09-30 with a deficit CBO estimates at $2.0 trillion, and gross federal debt stood at about $40.25 trillion on 2026-10-05. Treasury therefore sits on two transmission lines in the graph: what it chooses to issue (bills versus longer bonds) feeds Treasury yields and the term premium, and what OFAC designates or licenses sets the cost of trading Iranian and Russian oil.

Key numbers

Gross national debt: $40.25 trillion (as of 2026-10-05). Source: jec.senate.gov

FY2026 deficit (CBO estimate) and change vs FY2025: $2.0 trillion (+$218 billion) (as of 2026-10-08). Source: cbo.gov

Average interest rate on marketable debt: 3.518% (as of 2026-09-30). Source: jec.senate.gov

Marketable Treasury debt outstanding: about $32 trillion (as of 2026-09-22). Source: home.treasury.gov

Planned net marketable borrowing, Oct-Dec 2026: $628 billion (as of 2026-08-03). Source: home.treasury.gov

Net bill supply added, Jul-Aug 2026: > $550 billion (~85% to money funds) (as of 2026-09-22). Source: home.treasury.gov

Long-end liquidity buyback size per operation: >= $4 billion (was max $2 billion) (as of 2026-08-19). Source: home.treasury.gov

Treasury bills held by stablecoin providers: nearly $200 billion (as of 2026-09-22). Source: home.treasury.gov

Iran designations on Economic D-Day: nearly 60 + 5 sector determinations (as of 2026-08-24). Source: home.treasury.gov

Timeline

2026-10-16 — White House order waives most Graham Act Russia sanctions and duties and delegates many Act authorities to Treasury. (Source: whitehouse.gov)

2026-10-15 — Economic Outcast targets an Iraq-based bank, Iranian offshore banks and exchange houses. (Source: home.treasury.gov)

2026-10-09 — OFAC issues GL 135 authorizing Russian-origin diesel trade until 2027-04-07. (Source: ofac.treasury.gov)

2026-10-08 — 17 Iranian shadow-fleet vessels designated; Treasury says the remaining network is largely neutralized. (Source: home.treasury.gov)

2026-10-08 — CBO estimates the FY2026 deficit at $2.0 trillion, $218 billion more than FY2025. (Source: cbo.gov)

2026-10-01 — OFAC designates the Russia-linked A7 network; FinCEN proposes cutting off its Sub-Agents. (Source: home.treasury.gov)

2026-09-22 — Deputy Secretary Brooke: ~$32 trillion marketable debt; stablecoin issuers hold ~$200 billion of bills. (Source: home.treasury.gov)

2026-09-17 — OFAC designates Iranian crypto exchange BitBank and Zanjani associates. (Source: home.treasury.gov)

2026-09-09 — Larger long-end liquidity buybacks (at least $4 billion per operation) take effect. (Source: home.treasury.gov)

2026-08-24 — Bessent launches Operation Economic Outcast ("Economic D-Day") against Iran. (Source: home.treasury.gov)

2026-08-19 — Treasury announces at least doubled long-end buyback sizes. (Source: home.treasury.gov)

2026-08-18 — GENIUS Act stablecoin issuance rule proposed in the Federal Register. (Source: federalregister.gov)

2026-08-05 — Quarterly refunding keeps coupon sizes unchanged with guidance for several more quarters. (Source: home.treasury.gov)

2026-08-03 — Treasury estimates $739 billion and $628 billion of net borrowing for the next two quarters. (Source: home.treasury.gov)

2026-04-21 — Economic Fury action against Iranian missile and UAV procurement networks. (Source: home.treasury.gov)

2025-01-28 — Scott Bessent sworn in as 79th Treasury Secretary. (Source: home.treasury.gov)

Key actors and links

U.S. Treasuries (market:us-treasuries): Issuer: auction sizes, bill share and buybacks set supply.

Treasury refinancing and issuance (theme:treasury-issuance): Quarterly refunding decisions; coupon sizes flat, next review 2026-11-04.

Treasury term premium (indicator:treasury-term-premium): Bills and long-end buybacks reduce the duration supply that drives it.

Treasury supply/yields (indicator:treasury-supply-yields): Fed by borrowing estimates ($628 billion for Oct-Dec 2026).

U.S. fiscal deficits (theme:us-fiscal-deficits): Treasury reports and finances it: about $2.0 trillion in FY2026 (CBO estimate).

Federal debt/interest burden (indicator:federal-debt-interest-burden): Treasury reports interest on its securities monthly; the FY2026 total was not verified on a primary page in this pass.

Federal Reserve (actor:federal-reserve): Its bill purchases help absorb Treasury's bill-heavy financing.

Stablecoins (theme:stablecoins): Treasury writes GENIUS Act rules; issuers hold nearly $200 billion of short Treasuries.

Iran (country:iran): Target of Economic Fury and Economic Outcast.

Iranian oil exports (commodity:iranian-oil-exports): Shadow-fleet and broker designations raise the cost of moving it.

Islamic Revolutionary Guard Corps (IRGC) (actor:irgc): Named beneficiary of crypto and oil networks OFAC designated in 2026.

Sanctions on Russia (policy:russia-sanctions): OFAC runs the EO 14024 program and holds delegated Graham Act authorities.

Refined products (commodity:diesel): GL 135 allows Russian-origin diesel trade until 2027-04-07.

U.S. Department of State (actor:us-department-of-state): Co-delegate on Graham Act sanctions; can end the waivers after consulting Treasury.

Sanctions/enforcement (indicator:energy-sanctions-enforcement): OFAC designations and licenses are its observable inputs.

Why it matters now

Debt: CBO estimates the FY2026 deficit at $2.0 trillion, $218 billion more than FY2025, with revenues up about 3% and outlays up about 6%; Treasury's own September Monthly Treasury Statement could not be retrieved for this pass. Treasury has leaned on bills: its 2026-08-05 refunding kept coupon sizes unchanged "for at least the next several quarters", while net bill supply rose over $550 billion in July and August, about 85% taken by money-market funds. On 2026-08-19 it at least doubled long-end liquidity buybacks to $4 billion or more per operation. TBAC says the funding gap widens in FY2027; the next refunding is 2026-11-04.

Sanctions: Bessent launched Operation Economic Outcast ("Economic D-Day") on 2026-08-24 with E.O. 13902 determinations for digital assets, technology, gold, aviation and shipping and nearly 60 designations, then near-weekly actions on Iran's shadow fleet, banks, exchange houses and the BitBank crypto exchange. Russia runs the other way: General License 135 (2026-10-09) allows Russian-origin diesel trade until 2027-04-07, and the 2026-10-16 order waives most Graham Act Russia sanctions while delegating many of its authorities to Treasury, so any reactivation would run largely through OFAC.

Risks and open questions

Bull case: Inference (AA): Treasury has funded a ~$2 trillion deficit without larger coupons; money funds and stablecoin issuers absorbed big bill increases. If short rates fall, a bill-heavy mix cuts interest cost and keeps duration supply, and so the term premium, contained. Fast follow-up Iran designations show OFAC can raise evasion costs quickly.

Bear case: Inference (AA): a bill-heavy mix ties interest cost to the policy rate; interest costs are already large and TBAC sees the funding gap widening in FY2027, so coupon increases may come on the market's timing. Buybacks are funded by other issuance and do not cut net debt. Frozen-crypto totals are asserted, not itemized, and the Russia waivers and diesel licence show enforcement intensity is a policy switch.

Falsifiers: - Bull weakens if the 2026-11-04 refunding raises coupon sizes or drops the 'several quarters' guidance. - Bull weakens if money funds and stablecoins stop absorbing bills (bill yields above the policy rate). - Bear weakens if FY2027 monthly statements show the deficit narrowing materially. - Sanctions-intensity reading weakens if OFAC issues broad Iran general licenses. - The crypto-freeze claims are falsified or confirmed only by an itemized Treasury or Justice Department accounting.

What to watch

Comment deadline for Treasury's GENIUS Act stablecoin issuance, offer and sale proposed rule. (2026-10-19); Source: federalregister.gov

Dealer survey responses and meetings, including on the larger buybacks. (2026-10-26 to 2026-10-30); Source: home.treasury.gov

Treasury General Account peak, projected at $1.05 trillion plus or minus $50 billion. (late October 2026); Source: home.treasury.gov

Quarterly refunding: coupon sizes, forward guidance and future long-end buyback sizes. (2026-11-04); Source: home.treasury.gov

October 2026 Monthly Treasury Statement, the first FY2027 deficit reading. (November 2026); Source: fiscaldata.treasury.gov

GENIUS Act expected effective date; stablecoin licensing begins. (2027-01-18); Source: home.treasury.gov

Expiry of OFAC General License 135 on Russian-origin diesel, or earlier revocation. (2027-04-07); Source: ofac.treasury.gov

Any decision to end the Graham Act waivers, reactivating Treasury's delegated authorities. (no scheduled date); Source: whitehouse.gov

An itemized Treasury or Justice Department accounting of Iran-linked crypto freezes. (no scheduled date); speculative, no scheduled source

AA inference

Inference (AA): Treasury links fiscal arithmetic to sanctions geopolitics. On debt, the binding choice is the issuance mix: funding a ~$2 trillion deficit mainly with bills, plus larger long-end buybacks, plausibly restrains the term premium for now but defers the pressure TBAC flags for FY2027; the 2026-11-04 refunding is the next test. On sanctions, Treasury currently runs a maximal Iran campaign and a selectively relaxed Russia posture (GL 135, Graham waiver); the edges to commodity:iranian-oil-exports and commodity:diesel should be read as policy-dependent, not structural. Treasury's own crypto-freeze totals are claims, not itemized accounts, and should stay labelled that way.

Sources

Scott Bessent was sworn in as the 79th Secretary of the Treasury on 2025-01-28. (Source: home.treasury.gov, accessed 2026-10-18)

CBO estimated on 2026-10-08 that the FY2026 deficit was $2.0 trillion, $218 billion more than in FY2025, with revenues up $169 billion (3%) and outlays up an estimated $386 billion (6%). (Source: cbo.gov, accessed 2026-10-18)

The Joint Economic Committee's Monthly Debt Update states that total gross national debt was $40.25 trillion as of 2026-10-05. (Source: jec.senate.gov, accessed 2026-10-18)

The Joint Economic Committee's Monthly Debt Update states that the average interest rate on total marketable debt was 3.518 percent as of September 2026. (Source: jec.senate.gov, accessed 2026-10-18)

On 2026-08-03 Treasury estimated privately-held net marketable borrowing of $739 billion for July-September 2026 (end-September cash balance $950 billion) and $628 billion for October-December 2026 (end-December cash balance $850 billion). (Source: home.treasury.gov, accessed 2026-10-18)

Treasury's 2026-08-05 refunding offered $125 billion of 3-, 10- and 30-year securities ($58bn, $42bn, $25bn) to refund about $96.3 billion of maturing notes and bonds, raising about $28.7 billion of new cash. (Source: home.treasury.gov, accessed 2026-10-18)

In the 2026-08-05 refunding statement Treasury said it anticipates maintaining nominal coupon and FRN auction sizes "for at least the next several quarters". (Source: home.treasury.gov, accessed 2026-10-18)

The 2026-08-05 refunding statement set buybacks of up to $38 billion of off-the-run securities for liquidity support and up to $25 billion in the 1-month to 2-year bucket for cash management for the quarter, and said the Treasury General Account could peak at $1.05 trillion (plus or minus $50 billion) in late October. (Source: home.treasury.gov, accessed 2026-10-18)

The next quarterly refunding announcement is scheduled for 2026-11-04. (Source: home.treasury.gov, accessed 2026-10-18)

On 2026-08-19 Treasury raised long-end liquidity-support buybacks in the 10-20 and 20-30 year sectors from a maximum of $2 billion to at least $4 billion per operation, effective 2026-09-09 through 2026-11-04, citing the volume of high-quality offers it receives. (Source: home.treasury.gov, accessed 2026-10-18)

In its 2026-08-04 report TBAC recommended keeping nominal coupon, FRN and TIPS auction sizes unchanged, said current projections could warrant coupon increases in FY27, and said the funding gap widens in FY27 and further in FY28; it put the 10-year yield near 4.6% and the 2-year near 4.2%. (Source: home.treasury.gov, accessed 2026-10-18)

Deputy Secretary Francis Brooke said on 2026-09-22 that marketable Treasury debt is about $32 trillion and that Treasury has repurchased nearly $500 billion across more than 150 buyback operations. (Source: home.treasury.gov, accessed 2026-10-18)

Brooke said net bill supply rose by more than $550 billion in July and August 2026, with money-market funds absorbing about 85%, and that stablecoin providers hold nearly $200 billion of Treasury bills and other short-dated Treasuries. (Source: home.treasury.gov, accessed 2026-10-18)

Treasury's November 2026 dealer agenda asks dealers to respond by 2026-10-26, schedules meetings on 2026-10-29 and 2026-10-30, and asks about the effects of the 2026-08-19 long-end buyback increase. (Source: home.treasury.gov, accessed 2026-10-18)

On 2026-08-24 Treasury launched Operation Economic Outcast ("Economic D-Day") against Iran, issuing E.O. 13902 determinations for the digital assets, technology, gold, aviation and shipping sectors and sanctioning nearly 60 entities, individuals and vessels. (Source: home.treasury.gov, accessed 2026-10-18)

Bessent said the campaign's objective is "to sever every economic lifeline that sustains this tyrannical regime until Tehran stands alone." (Source: home.treasury.gov, accessed 2026-10-18)

On 2026-09-17 OFAC designated the Iranian exchange BitBank, controlled by Babak Zanjani, saying his network moved hundreds of millions of dollars in Bitcoin to the IRGC; no frozen-asset amount was given. (Source: home.treasury.gov, accessed 2026-10-18)

On 2026-10-01 OFAC designated the Russia-linked A7 network as a transnational criminal organization and FinCEN proposed a rule against its Sub-Agents, which FinCEN found processed more than $17 billion from January 2025 to June 2026. (Source: home.treasury.gov, accessed 2026-10-18)

On 2026-10-08 Treasury designated 17 shadow-fleet vessels and related companies under E.O. 13902, saying the action neutralizes the vast majority of Iran's remaining shadow fleet network. (Source: home.treasury.gov, accessed 2026-10-18)

OFAC's 2026-10-08 recent-actions entry lists 6 individuals, 27 entities and 22 vessels added under Iran authorities, Iran General License EE, and amended Russia-related General License 13S. (Source: ofac.treasury.gov, accessed 2026-10-18)

On 2026-10-15 Treasury targeted an Iraq-based bank, two Iranian offshore banks and exchange houses in Iran's shadow-banking network under E.O. 13902. (Source: home.treasury.gov, accessed 2026-10-18)

Treasury's 2026-04-21 Economic Fury action designated 14 individuals, entities and aircraft tied to Iranian missile and UAV procurement. (Source: home.treasury.gov, accessed 2026-10-18)

OFAC General License 135, dated 2026-10-09, authorizes transactions related to the sale, delivery, offloading and importation of Russian-origin diesel through 12:01 a.m. EDT on 2027-04-07, excluding debits to accounts of the Russian central bank, National Wealth Fund or Ministry of Finance. (Source: ofac.treasury.gov, accessed 2026-10-18)

The 2026-10-16 White House order delegates Graham Act sections 102(e)(1), 103(a), 103(b), 103(d), 104(b), 110(a), 110(c) and 116(a) to the Secretary of the Treasury, in consultation with the Secretary of State. (Source: whitehouse.gov, accessed 2026-10-18)

Under the 2026-10-16 order the Graham Act waivers last until the President or the Secretary of State, in consultation with the Secretary of the Treasury and the Trade Representative, determine further action is appropriate. (Source: whitehouse.gov, accessed 2026-10-18)

Treasury's GENIUS Act proposed rule on payment-stablecoin issuance, offer and sale was published on 2026-08-18 with comments due by 2026-10-19. (Source: federalregister.gov, accessed 2026-10-18)

Treasury expects the GENIUS Act to take effect on 2027-01-18, after which issuing a payment stablecoin in the U.S. generally requires a federal or state license. (Source: home.treasury.gov, accessed 2026-10-18)