Almost 21 years ago,on November 1, 2005, the US Fed had raised its target to 4%. Consumer prices that December were also 3.4% higher than a year earlier. The Fed’s statement in 2005 blamed elevated energy prices and disruption from hurricanes like Katrina, while saying core inflation had been relatively low.
Today, the energy shock comes from the Gulf, while core inflation, which strips out food and fuel, is running at a low 2.4%. Both times, the US Fed rate was raised partly because of an oil price it could not control while underlying price pressure was considerably more contained. That is as far as the similarities go. Everything else has changed.
What’s more, 16 of the 18 Fed officials who submitted forecasts expect at least one more hike before December, and four expect two. Nothing is mentioned for 2027. The first cut anyone sees is in 2028.
In 2026, the reason given was two words long: Elevated inflation. American consumer prices rose 3.4% in the year to August. Diesel is at $6 a gallon, and the war with Iran shows no sign of ending. So the action and indication are the same. The interesting thing about 4%, though, is not that America has never seen it before. It has.
First in Queue: The US Government
At the end of September 2005, total gross US federal debt was $7,918 billion, according to the audited Schedule of Federal Debt. Interest on that debt that year came to $355 billion, of which $181 billion went to outside creditors. Debt held by the public was 35.6% of the American economy.
On August 19, 2026, the Treasury announced that gross public debt had crossed $40 trillion for the first time. Debt held by the public is now approaching the size of the whole economy. Also, in August, the federal interest bill passed $1 trillion for the first time, running 8.9% above last year. That is about 3.3% of the American economy, higher than the previous record set in 1991.
Since 2024, America has in fact been spending more on interest than on its armed forces: About $1.21 trillion against about $1.17 trillion.
So the rate is the same as it was in 2005. The load it is charged on is not. And a government that needs about a trillion dollars a year merely to service what it already owes is a very large customer to stand behind.
Second in Queue: AI Buildout
For roughly 20 years, the rich world’s problem was described as too much saving chasing too few worthwhile places to invest. Ben Bernanke, then the Fed chair, gave it a name in March 2005: The global savings glut.
That abundance of capital is part of the reason America could raise rates through 2005 and 2006 without the rest of the world feeling the full effect. Somebody was always willing to buy.
Times have changed. Kevin Warsh, who took over as Fed chairman in May, said at his first Jackson Hole address on August 28 that people once believed excess capital would remain on the sidelines, because all the good things had already been invented.
They had not reckoned with the money being pulled in by artificial intelligence, or AI. Warsh said business investment in equipment and intangibles is growing at about 9%, the fastest since 2021, and that more than half of this year’s growth can likely be put down to the AI buildout.
Analysts count $225 billion of bonds issued by AI-related technology companies in the first six months of this year. Some of them run for 30 years.
So capital has not vanished. It has found somewhere to go. And the US government is now bidding for it alongside everybody else.
Third in Queue: US Treasury Itself
Four weeks before the Fed raised rates, the Treasury was moving in the other direction. On August 19, with the 30-year Treasury yield at its highest in about 19 years, it said it would at least double its buybacks of long-dated government debt, from $2 billion to at least $4 billion per operation.
The operations run from September 9 to November 4, and are aimed at the 10-to-30-year part of the market, where buyers had gone quiet.
Yields fell at first. The 30-year yield dropped about nine basis points to 5.196%, and the 10-year about six basis points to 4.647%. A basis point is one-hundredth of a percentage point. By the next afternoon the move had reversed. The 30-year was above 5.27% again, essentially where it had started.
The problem is not that Washington cannot find buyers at all. The problem is the price needed to attract them when the government, corporate America, and an enormous technology investment cycle are all competing for the same money.
Queue as Constraint: So, the US government now needs about a trillion dollars a year simply to service its existing debt. AI-related technology companies sold $225 billion of bonds in six months.
Every one of those bonds is competing for the attention of the same global investors that an Indian issuer has to call.
4% no Longer Means What it Did in 2005
The same nominal Fed rate now sits on top of a completely different financial system. The result is not a global credit freeze. Strong borrowers can still raise money. Indian banks can, in fact, borrow at extraordinarily tight spreads over Treasuries.
But the Treasury rate under those spreads is much higher. That distinction matters well beyond corporate borrowing.
India can be regarded as safer than before and still pay more. Both things can be true because the part of the borrowing cost that reflects India has fallen while the price of the dollar underneath it has risen.
That is the real significance of the Fed returning to 4 percent. The number has been here before. The world around it has not.
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