The Fed Raised Rates to 3.75–4.00%: What the September 2026 Hike Means for Your Credit Card Interest

On September 16, 2026 the Federal Reserve raised its federal funds target range by 0.25 percentage point to 3.75%–4.00%, in a 12–0 vote, saying “Inflation remains elevated.” The bank prime rate moved from 6.75% to 7.00% the next day, so prime-linked credit cards and HELOCs get more expensive. The hike adds about $2.50 a year per $1,000 of balance; the APR you already carry costs far more.

It is the first prime rate increase since July 2023 (Fed H.15).

What the Fed decided on September 16, 2026

The FOMC moved the federal funds target range from 3.50%–3.75% to 3.75%–4.00%, effective September 17, 2026.

• Statement: vote 12–0, “Inflation remains elevated” (FOMC statement).
• Discount window primary credit rate: 4.00% (implementation note).
• Bank prime loan rate: 6.75% through September 16, 7.00% from September 17 (Fed H.15).
• Projections: median end-2026 federal funds rate 4.1% (midpoint), up from 3.8% in June; 2026 PCE inflation 3.7% (September projections).
• Next meeting: October 27–28, 2026 (FOMC calendar).

What the Fed rate hike means for credit cards

A variable credit card APR equals an index named in your cardholder agreement plus a margin set by the issuer; when the index is the prime rate, your APR rises by the same 0.25 point. Regulation Z lets an issuer raise a variable APR when a public index it does not control goes up (12 CFR 1026.55(b)(2)). That increase is exempt from the 45-day change-in-terms notice (12 CFR 1026.9(c)(2)(v)(C); official interpretation, comment 9(c)(2)-1), so the higher APR can show up on your next statement.

The average APR on credit card accounts assessed interest at commercial banks was 22.15% in Q2 2026 (Fed G.19, released September 8, 2026). If your HELOC has a variable rate, check which index its agreement names. Existing fixed-rate auto loans and mortgages keep their rate.

What the hike costs on a typical debt mix

An illustrative household; card A starts at the G.19 average, other APRs are examples. Annual interest is a simple estimate with the balance held flat.

The hike adds $71 a year here; clearing card B removes $656.

A 15-minute response plan

1. List every variable-rate debt with balance, APR and the index in its agreement.
2. Add 0.25 point to each prime-linked APR; confirm it on your next statement.
3. Pick an order. The avalanche targets the highest APR first (card B, card A, HELOC, auto loan). The snowball targets the smallest balance first (card B, card A, auto loan, HELOC). See debt snowball vs avalanche.
4. Fund the extra payment from one budget line you can trim for 90 days.

In Canada, the Bank of Canada held its overnight rate at 2.25% on September 2, 2026; next decision October 28 (Bank of Canada).

This article is general education. Your cardholder or HELOC agreement sets the index, margin and adjustment date that apply to you.

Frequently Asked Questions

Did the Fed raise rates in September 2026?

Yes. On September 16, 2026 the FOMC raised the federal funds target range by 0.25 percentage point to 3.75%–4.00%, in a 12–0 vote. The bank prime rate rose from 6.75% to 7.00% on September 17, per Fed H.15 data.

How much will my credit card interest go up after the Fed hike?

If your card’s APR is indexed to prime, it rises 0.25 point, which is about $2.50 a year for every $1,000 of balance you carry. On a $6,000 balance at 22.15%, annual interest moves from roughly $1,329 to $1,344.

When does a Fed rate hike hit my credit card?

Your cardholder agreement sets when an index change takes effect. Regulation Z lets issuers raise a variable APR when the public index named in the agreement rises, and that increase is exempt from the 45-day change-in-terms notice, so check the APR on your next statement.

Related reading: Best Debt Payoff Apps · Debt Snowball vs Avalanche · How to Pay Off Debt Fast · All Finman Features