September Inflation Hits 3.7% As Gas Prices Jump 9.1% In A Month

Emily Lauderdale
Magnifying glass and colored pencils on financial trend graphs highlighting sales growth; September inflation report
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Consumer prices climbed 3.7% over the past year in September, up from 3.4% in August, according to Kiplinger’s breakdown of the Bureau of Labor Statistics report released October 14. Prices rose 0.6% from the month before, and the yearly rate landed above the 3.6% that forecasters had expected.

For anyone who sets their own rates and pays their own fuel, software and insurance bills, a hotter reading hits close to home. When your costs rise faster than the price you quote clients, the gap comes straight out of your take-home pay.

What The Inflation Report Actually Shows

Gasoline was the main driver. Pump prices rose 9.1% in September and made up more than half of the month’s overall increase, while the broader energy index jumped 5.2%.

Core inflation, which leaves out food and energy, rose 0.3% for the month and 2.6% over the year, a touch above the 2.5% annual pace economists were looking for. Shelter, airfare, medical care, used cars and apparel all moved higher, grocery prices were flat, and communications costs slipped slightly.

Why This Matters For Self-Employed Workers

Mileage-heavy trades feel gasoline first. Couriers, rideshare drivers, mobile service providers and anyone who drives to client sites now spend noticeably more per trip than they did a month ago, so a flat rate card quietly turns into a pay cut.

Inflation also keeps pressure on borrowing costs. The Federal Reserve raised rates in mid-September for the first time in three years, as covered in our report on that hike, and a warm inflation print keeps another increase possible. Variable-rate credit lines and card balances get more expensive when that happens.

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What Self-Employed Workers Should Do Next

Start with your pricing. If fuel, shipping or materials make up a real share of your costs, build an adjustment clause or a separate line item into new quotes, and raise rates on new work now instead of waiting for a renewal date.

Then tighten your records. Higher vehicle costs make a clean mileage log and saved fuel receipts more valuable at tax time, and paying down variable-rate balances before the next Fed meeting can limit the damage if rates move again.

What To Watch Next

The Fed’s next policy decision is set for October 28, and economists are divided on whether this data is enough to justify back-to-back hikes. Kiplinger’s economist expects annual inflation to finish 2026 near 4% if energy costs stay high.

Keep an eye on gasoline and diesel prices through the rest of October, and compare this report with the August reading we covered to see how quickly the trend is building. The October inflation report, due in November, will show whether the fuel spike is fading or spreading.

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The Self Employed editorial policy is led by editor-in-chief, Renee Johnson. We take great pride in the quality of our content. Our writers create original, accurate, engaging content that is free of ethical concerns or conflicts. Our rigorous editorial process includes editing for accuracy, recency, and clarity.

Emily is a news contributor and writer for SelfEmployed. She writes on what's going on in the business world and tips for how to get ahead.