• Philadelphia Fed President Anna Paulson said September’s inflation data convinced policymakers to raise rates for the first time since 2023.
  • The FOMC voted unanimously to lift the federal-funds target range by 25 basis points to 3.75%–4.00%, citing persistent underlying inflation.
  • Officials project at least one more hike by end-2026, with inflation not expected to return to 2% until 2029.

Inflation Data Forces the Fed’s Hand

September’s inflation reports were the decisive factor that persuaded Federal Reserve policymakers to raise interest rates for the first time in over three years, according to Philadelphia Fed President Anna Paulson. The Federal Open Market Committee (FOMC) voted unanimously on September 16 to lift the federal-funds target range by 25 basis points to 3.75%–4.00%, ending a prolonged pause.

Paulson, a voting FOMC participant in 2026, had signaled in August that an absence of further improvement in underlying inflation would itself warrant more restrictive policy. She estimated underlying inflation at roughly 2.4%–2.8%, well above the Fed’s 2% target. The September data confirmed those concerns, showing that price pressures were not cooling quickly enough.

“Inflation has been too high for too long,” said Fed Chair Kevin Warsh, describing the decision as removing “a dose of accommodation” to return inflation to target more promptly.

A Hawkish Shift

The rate increase reflects a judgment that the labor market remains resilient enough to absorb higher borrowing costs without triggering an immediate employment shock. The Fed’s September projections lowered the expected unemployment rate to 4.1% from 4.3% in June.

Policymakers’ updated projections remain decidedly hawkish. Sixteen of 18 officials anticipated at least one additional quarter-point increase by the end of 2026, and half saw a further rise as possible in 2027. The Fed’s latest forecast put 2026 headline PCE inflation at 3.7% and core PCE inflation at 3.4%, with inflation not expected to return fully to the 2% objective until 2029.

The move reverses part of the prior easing cycle and marks the first hike since 2023. It follows a contentious July meeting in which three policymakers had favored hiking rather than holding, though the September decision was unanimous.

Market and Economic Crosscurrents

Higher oil prices, Middle East tensions, and lingering tariff effects have contributed to price pressure. The policy dilemma is that rates cannot directly create energy supply, yet prolonged energy inflation can feed into broader prices, wages, and household expectations. Paulson has argued that the Fed should generally look through short-lived supply shocks, but persistent underlying inflation would justify tighter policy.

Financial conditions had already tightened ahead of the decision. The 10-year Treasury yield had risen about one percentage point from its February low, while the 30-year fixed mortgage rate reached 7.19%, more than a percentage point above a year earlier. The S&P 500 rose after the September announcement, while yields fell in the immediate aftermath.

“We have a constant balance with the banks, which really we consider our partners and not only our binary competitors,” said one market participant, speaking on condition of anonymity. “It’s much more of a convergence between the two solutions.”

Political and International Dimensions

The rate decision is formally independent of elected officials, but it intersects with politically sensitive issues: consumer prices, housing affordability, energy costs, tariffs, and employment. Higher interest rates are particularly visible to households through mortgages, auto loans, credit cards, and business financing.

International conflict matters because oil is globally priced. Disruptions or fear of disruption in Middle Eastern energy markets can raise U.S. fuel costs and complicate the Fed’s task. U.S. rate increases can also strengthen the dollar and tighten global financial conditions, potentially adding strain for countries and companies that finance themselves in dollars.

What to Watch

The next inflation releases, especially measures of core services and household inflation expectations, will be central. If September’s reports were a catalyst for the latest hike, subsequent data will determine whether it becomes the start of a longer tightening sequence.

Parallel developments reinforce the hawkish tilt: Boston Fed President Susan Collins said a “somewhat more restrictive” policy rate would help return inflation durably to target, while several other officials have also stressed that inflation risks outweigh employment risks at present.

The median official view points toward at least one more 25-basis-point increase in 2026, although that is a projection rather than a commitment. The Fed’s path could change if core inflation eases convincingly, oil prices reverse, financial conditions tighten sharply, or labor-market conditions deteriorate.

Correction: An earlier version of this article misstated the federal-funds target range. It is 3.75%–4.00%, not 3.75%–4.25%.