The Treasury Isn’t Managing Cash Anymore. It’s Buying Time on a $1.25 Trillion Interest Bill.
(SeaPRwire) –
By: Raymond Vance
Scott Bessent just doubled the Treasury’s buybacks of 10-to-30-year bonds from $2 billion to at least $4 billion per operation. That is a market intervention dressed as cash management. The federal net interest payment hit 18.5% of revenue in 2025. That edges past the 1991 record of 18.4%. The Treasury is collecting nearly a fifth of all tax revenue just to service the $40 trillion national debt. The annual interest bill is $1.25 trillion. That is more than the entire 2026 defense budget. You do not need a crisis narrative. The arithmetic is doing the work. When a finance ministry starts buying back long-duration debt at this scale, it is not tidying up its maturity profile. It is trying to keep the long end from clearing higher.
The Treasury’s public line remains that buybacks support liquidity. The market is reading a different document. Debt held by the public has passed $32 trillion, more than 100% of GDP. In 1991, that ratio was about 44%. Hyperscalers issued $225 billion in bonds in the first half of 2026. That capital is not going into Treasuries. Ed Yardeni put it bluntly. “Capital flowing into corporate bonds is capital not flowing into Treasuries, and Treasury yields have had to rise to clear the market.” The AI revolution is producing a classic crowding-out effect. The Treasury is now competing with AI giants for long-term money. The buyback is a release valve. It reduces supply at the long end. But it also blurs the line between debt issuance and market control. Doubleline analysts said the strategy blurred cash management and controlling the market. That is the core shift. The Treasury is no longer a neutral issuer. It is an active counterparty.
The 1991 record was different. Back then, 30-year Treasury yields fell to about 8%, down from more than 10% in prior decades. The economy was recovering from recession and oil shocks from the Gulf War. High bond demand pulled yields lower. Debt held by the public was 44% of GDP. Today, the debt is enormous. The yield on long bonds looks ordinary by historical standards. The government’s sensitivity to it is not. That is the Doubleline argument. Interest expense as a percentage of revenue has tripled since 2015, according to the Kobeissi Letter, citing the Congressional Budget Office. The CBO projects interest expense to climb to 25% by 2036. Kobeissi called it “uncharted territory.” Those projections assume no major slowdown, no recession, no significant rise in Treasury yields. That is the uncomfortable part. The baseline is already ugly. Any shock makes it worse. The private sector is now piling into the same long-duration market. That is why the Treasury had to act.
The credit rating agencies have not moved yet. But the inputs they watch are moving. A government that spends $1.25 trillion a year just on interest has less room for infrastructure, education, or defense. It must borrow more to cover the interest. That creates a cycle. As corporate AI debt pulls long-term capital away, Treasury yields rise further. The interest bill compounds. Buybacks can smooth a few auctions. They cannot reverse the trend. The U.S. still has the deepest bond market in the world. But depth does not erase prices. If the long bond becomes the main transmission mechanism for fiscal stress, the next downgrade will not need a political crisis. It will come from the cash flow statement. The Treasury has become a buyer of its own duration because private demand is walking away. That is triage, not strategy.
Author bio: Raymond Vance, a senior macro-economist and consultant to central banking policy research working groups, focusing on sovereign debt structures, yield curve mechanics, and Treasury market functioning.