# Fed kept rates unchanged in September as inflation rose

*Economics. 58% certain. Wednesday, 30 September 2026*

> Speculative fiction assembled from prediction-market prices. This has not happened.

**President Trump unveiled a new tariff and immigration plan while the Fed left rates steady.**

The Federal Reserve left its benchmark interest rate unchanged in September 2026. The decision followed a series of three consecutive pauses that began in June. At the same time, President Trump introduced a new tariff and immigration policy before the month ended.

The Fed's policy committee met on September 16 and again on September 23, and in both instances it chose not to alter rates. Earlier meetings in June and July also resulted in no change, completing a pause-pause-pause sequence for the quarter. No 25-basis-point cuts or hikes were implemented during any of those sessions.

The increase signaled that inflation remained a concern for policymakers. The Fed's steady stance therefore occurred despite the latest price pressure.

President Trump announced the new tariff and immigration measures by the end of September. The tariff component targeted specific imports, while the immigration policy introduced new entry criteria. The announcement came as the Fed maintained its monetary policy course.

The juxtaposition of unchanged rates and a fresh trade-immigration agenda highlighted divergent approaches to economic challenges. Both developments concluded the month's major economic events.

## Analysis

Keeping rates steady despite a 0.3% monthly rise in CPI suggests the Federal Reserve is willing to tolerate modest inflationary pressure in order to avoid tightening financial conditions. This stance preserves current borrowing costs for businesses and consumers, which could support demand but may also allow price growth to persist.

Tariffs can raise the cost of imported goods, potentially feeding into consumer price indexes, while tighter immigration rules may affect the supply of labor in certain sectors.

The combination of a neutral monetary policy and an assertive trade-immigration agenda creates a mixed policy environment.

Future developments remain uncertain. Likewise, the Fed may reassess its stance if inflation accelerates or economic activity weakens.

## What this was built from

- **Fed Decision in September?**: No change, 58%; settles Wednesday, 16 September 2026 (polymarket). [Market](https://polymarket.com/event/fed-decision-in-september-762)
- **Fed decisions (Jun-Sep)**: Pause–Pause–Pause, 59%; settles Wednesday, 16 September 2026 (polymarket). [Market](https://polymarket.com/event/fed-decisions-jun-sep)
- **Will August 2026 headline CPI-U rise at least 0.3% month-over-month?**: Yes, 92%; settles Friday, 11 September 2026 (manifold). [Market](https://manifold.markets/CalibratedGhosts/will-august-2026-headline-cpiu-rise)
- **Will Trump announce a new tariff/immigration policy by end of September 2026?”**: Yes, 99%; settles Wednesday, 30 September 2026 (manifold). [Market](https://manifold.markets/subhamsingh/will-trump-announce-a-new-tariffimm)
- **Will the Fed cut rates by at least 25 bps at the Sept. 16, 2026 FOMC meeting?**: No, 99%; settles Wednesday, 16 September 2026 (manifold). [Market](https://manifold.markets/CalibratedGhosts/will-the-fed-cut-rates-by-at-least)
- **🇺🇸 Will the Fed raise interest rates in September 2026?**: No, 84%; settles Wednesday, 16 September 2026 (manifold). [Market](https://manifold.markets/MAKER/-will-the-fed-raise-interest-rates)
- **Will the Fed cut rates by 25 bps at its next meeting?**: No, 98%; settles Wednesday, 23 September 2026 (manifold). [Market](https://manifold.markets/subhamsingh/will-the-fed-cut-rates-by-25-bps-at-N6AnPp8uC8)