The Federal Reserve has raised interest rates again.
For business owners, the useful question isn’t what happened to the federal funds rate.
It’s which assumptions in your business no longer work at the new cost of money.
On September 16, the Federal Open Market Committee unanimously raised its target range for the federal funds rate by one-quarter percentage point, bringing it to 3.75%–4.00%.
The operational changes took effect September 17.
That doesn’t mean every business loan becomes 0.25 percentage point more expensive immediately.
But businesses using floating-rate debt, lines of credit, acquisition financing, and other rate-sensitive capital should understand how the change could eventually affect them.
What Happened
The Federal Reserve said economic activity continues to expand at a solid pace, employment remains relatively stable, and capital investment is robust.
Inflation, however, remains elevated.
The FOMC therefore voted 12–0 to increase the federal funds target range to 3.75%–4.00%.
To implement that decision, the Fed raised the rate paid on reserve balances to 3.90% and increased the primary credit rate charged through the Federal Reserve’s discount window to 4.00%.
Those changes became effective September 17.
What It Means for Businesses
The federal funds rate isn’t the rate most businesses pay their bank.
But changes in Fed policy influence short-term interest rates throughout the financial system.
That makes this a good time for owners to review any financing whose cost changes with market rates.
Start with floating-rate debt.
Commercial loans and credit facilities frequently price interest using a benchmark plus an additional spread.
When the underlying benchmark rises, the business’s interest expense can rise.
A quarter-point increase by itself may not materially change a healthy company’s finances.
Repeated increases can.
Recalculate Acquisitions
Interest rates also affect the economics of buying businesses.
A deal that generates an acceptable return with inexpensive debt can look very different when debt service increases.
Buyers should rerun acquisition models using current financing assumptions rather than relying on numbers prepared months earlier.
That means reconsidering:
Debt-service coverage
Free cash flow after interest
Required equity contribution
Purchase-price affordability
Seller-note structures
Expected return on invested capital
The purchase price may not have changed.
The economics of financing it may have.
Revisit Capital Expenditures
The same principle applies to equipment, expansion, and other capital projects.
Businesses often evaluate investments by comparing a project's expected return with the cost of financing and other uses of capital.
As capital becomes more expensive, some marginal projects no longer produce attractive returns.
That doesn’t mean companies should stop investing.
It means management should recalculate, not assume.
A project approved under one financing environment may deserve another look before committing money.
Watch Working Capital
Lines of credit deserve particular attention because businesses often treat them as operational tools rather than long-term financing decisions.
A company borrowing against a revolver to finance inventory, receivables, or seasonal working capital can experience higher interest expense without taking on any additional debt.
For businesses operating with thin margins, that matters.
Owners should understand:
How much debt is floating rate?
When does it reset?
What benchmark determines the rate?
How much additional annual interest expense would another 0.25, 0.50, or 1 percentage point increase create?
Those are relatively simple calculations that can reveal significant exposure.
There Is Another Side
Higher interest rates are not uniformly negative for businesses.
Companies holding substantial cash can earn more on short-term deposits and Treasury securities.
Banks and financial institutions can also experience different effects depending on their asset and funding structures.
And if tighter monetary policy succeeds in reducing inflation, businesses may eventually benefit from greater price stability.
The immediate impact therefore depends heavily on whether a company is primarily a borrower, lender, saver, or investor.
Where It Stands
The September decision is a completed Federal Reserve monetary-policy action, not a proposal.
The target range is now 3.75%–4.00%.
The Fed has not predetermined the path of future rates. Future decisions will depend on economic conditions and inflation.
Businesses therefore should avoid building financial plans around assumptions that rates must immediately move in either direction.
What Businesses Should Do Now
Owners don’t need to become Fed watchers.
They do need to understand their exposure to the cost of money.
This is a reasonable time to rerun:
Debt schedules.
Acquisition models.
Capital-expenditure returns.
Working-capital costs.
Cash-management strategies.
Refinancing assumptions.
The Fed’s quarter-point increase may not fundamentally change any one of those decisions.
But businesses get into trouble when financing conditions change while their assumptions don’t.
The relevant question isn’t simply whether interest rates went up.
It’s whether the numbers behind your next decision still work now that they have.
Sources
Board of Governors of the Federal Reserve System — September 16, 2026: Federal Reserve Issues FOMC Statement
Board of Governors of the Federal Reserve System — September 16, 2026: Implementation Note