September 11, 2025

Finance 101: Changing Interest Rates

Dana Edwards, CFP®, CSRIC®, EA
What a September interest rate cut could mean for you.

As we broached in our last article, “Breaking Sensationalism: The Discourse Surrounding Interest Rates,” the Federal Reserve is considering lowering interest rates in September, a move that would affect nearly every part of the U.S. economy. Having discussed the big-picture factors that can influence the important decision making behind the adjustment of US interest rates, we will now turn our focus to breaking down what this decision could mean for the American public. For families, a rate cut could change the cost of mortgages, credit cards, and savings accounts. For businesses, it could influence borrowing decisions, hiring, and investment. This guide will take a deep dive into what a rate cut is, why it matters, and how households and businesses can prepare.

Understanding Interest Rate Cuts

The Federal Reserve uses interest rates to influence the economy. Raising rates makes borrowing more expensive, which in turn helps to slow down inflation. Conversely, lowering rates makes borrowing cheaper, which encourages spending and investment.

After several years of higher rates aimed at cooling inflation, the Fed is now considering a shift to lower rates. If a cut happens in September, it will mark an economic turning point with wide-ranging effects.

What Families Should Know

Businesses and large industries will not be the only ones affected by an interest rate cut. A decision to lower rates will have impacts across the economy - on both macro and micro levels. Families should also expect to see the effects of an interest rate cut. Areas that would be affected include:

  1. ⁠Mortgages and Housing
    • For new home buyers, lower rates would reduce the cost of borrowing, making monthly payments smaller and homeownership more affordable.
    • For current homeowners, those with adjustable-rate mortgages may see their payments go down. Refinancing could also become attractive if fixed rates drop.
    • Tip: If you’re considering buying a home or refinancing, start gathering information now so you can act quickly if rates fall.
  2. ⁠Credit Cards and Personal Loans
    • Many credit cards and personal loans have variable rates tied to the Fed’s decisions. A cut could mean smaller minimum payments and lower overall interest costs.
    • Tip: This is a good time to pay down balances faster, since more of your payment will go toward reducing principal instead of interest.
  3. Savings Accounts and Credits of Deposit (CDs)
    • Lower rates often mean lower returns on savings accounts, CDs, and money market funds. Families relying on interest income may notice smaller earnings.
    • Tip: Consider diversifying savings into other investment options if you don’t need immediate access to your money.
  4. Everyday Prices
    • Lower rates encourage spending, which can boost the economy but also puts upward pressure on prices. Families may find some goods and services becoming more expensive again.
    • Tip: Keep an eye on your household budget—lower borrowing costs may not fully offset rising prices.

What Businesses Should Know

  1. Cheaper Financing
    • Businesses that rely on loans for growth, equipment, or operations will benefit from lower borrowing costs.
    • Startups and small businesses may find it easier to access funding.
    • Tip: Review your current debt and future financing needs. This could be a smart time to lock in lower-cost loans.
  2. Investment and Expansion
    • Lower rates often lift the stock market, making it easier for companies to raise capital.
    • Consumer demand may rise, creating opportunities to expand products or services.
    • Tip: Evaluate whether increased demand could support scaling operations in the next year.
  3. Currency and Trade
    1. A weaker U.S. dollar often follows rate cuts, which can help exporters by making American goods cheaper abroad.
    2. Import-heavy businesses may face higher costs if foreign products become more expensive.
    3. Tip: Review your supply chain—if you rely heavily on imports, prepare for potential cost adjustments.
  4. Inflation Risk
    • While rate cuts can fuel growth, they can also reignite inflation. Businesses may need to balance higher sales with potential increases in labor or material costs.
    • Tip: Build flexibility into pricing strategies so you can adjust quickly if costs rise.

The Bottom Line

A September rate cut could bring relief to borrowers but reduce returns for savers. For families, it is a chance to improve household finances by lowering debt costs—but with a need to stay alert to rising prices. For businesses, it offers opportunities to invest and expand, though careful planning will be needed to manage potential inflation.

By preparing now, both households and companies can capitalize on the opportunities—and guard against the risks—that come with lower interest rates.