How Long Until Inflation Returns to 2%?

The Fed has consistently said that it wants to bring inflation back to 2%. But this raises a question that is easily misunderstood: must inflation actually reach 2% before interest rates can change? The answer is no.

What does the Fed mean by 2%?

First, the measure matters. The Fed's 2% inflation target refers to PCE, not the CPI that we hear about more often.

But even if PCE inflation remains above 2%, the Fed does not have to wait until it reaches that level before adjusting rates.

Why can rates change before inflation reaches 2%?

On September 16, the Fed set out a clear test: it needs to be confident that underlying inflation is moving clearly towards the target at a sufficiently rapid pace. This time, it judged that the test had not yet been met.

That day, the Fed raised rates by 25 basis points, lifting the federal funds target range to 3.75%–4.00%.

Why it chose to raise rates on this occasion is not the question this article seeks to answer. The point here is that the Fed does not need inflation to return to 2% first before changing interest rates.

The past year has not been a smooth journey

How far away is 2% now?

Last July, annual U.S. PCE inflation was 2.6%, just 0.6 percentage points above the target. It climbed to 4.1% this May before falling to 3.7% in July. There has been improvement over the past two months, with a decline of 0.4 percentage points. Compared with last July, however, inflation is now further from 2%.

Core PCE tells a similar story. It excludes the more volatile food and energy components and is better suited to tracking the inflation trend. It was 2.9% last July and 3.3% this July.

Over the past year, inflation first moved further from the target and only recently began moving back towards it.

How much longer will it take?

In the Fed's own projections, 2% appears in 2029.

The latest September projections put median core PCE inflation at 3.4% in 2026, 2.5% in 2027, and 2.2% in 2028. It reaches 2.0% only in 2029.

These are forecasts, not commitments. Compared with the Fed's June projections, the latest release also raised projected core PCE inflation for 2026 from 3.3% to 3.4%, and for 2028 from 2.1% to 2.2%.

In other words, the latest Fed projections suggest that returning to 2% is not a matter of a few months. It is a path that may still take several years.

Two percent is not a switch

Assessing inflation requires more than asking whether it has reached 2%. We also need to ask whether it is moving steadily towards that level. Despite the recent decline, inflation is further from the target than it was a year ago.

August PCE will be released on September 30, alongside the annual revisions. If core PCE suddenly falls, there is another question to consider: has inflation genuinely cooled, or does the change reflect adjustments to the statistical methodology?