How Do Interest Rates Impact the Economy During Inflation?

For much of the 2010s and early 2020s, interest rates were unusually low. By 2026, households and businesses are operating in a higher-rate environment than many had grown used to during the low-rate years.

Many Americans, including those who remember the high-rate environment of the 1970s and 1980s, became accustomed to lower rates after decades of declining borrowing costs. But many are still wondering how interest rates affect the economy, including how lower rates and rising rates are influencing economic activity.

After sharply raising short-term rates in response to inflation, the Federal Reserve has kept its benchmark elevated while watching for future progress on inflation and signs of slowing economic activity. How are interest rates determined, and what is the impact of interest rates as a whole?

There are essentially two forces that determine the direction of interest rates:

• The Federal Reserve
• Investor demand for U.S. Treasury bonds

Key Takeaways:

• Interest rates are influenced primarily by Federal Reserve policy and investor demand for U.S. Treasury bonds.
• Higher interest rates can increase borrowing costs for consumers and businesses, which may slow spending, lending, and economic growth.
• Mortgage rates often follow Treasury yields and remain much higher than the historic lows seen in 2020 and 2021.
• Rising interest rates can affect more than loans and savings accounts. They may also influence bond prices, investment behavior, and long-term market expectations.
• Interest rates are only one part of the broader economic picture. Inflation, consumer spending, and overall market conditions also play a role in how the economy responds.

The Federal Reserve

The Federal Reserve influences short-term borrowing costs by targeting the federal funds rate for overnight lending between banks. While the Federal Reserve can influence short-term investments tied to savings accounts and cash products, longer-term borrowing costs are influenced more heavily by Treasury yields. Changes in the federal funds influence borrowing costs, lending activity, and consumer spending in the economy.

The reason for that is that when the economy heats up too much, it increases the risk of inflation, which can hurt the economy.

It increases the cost of money by raising the Federal funds rate to slow down borrowing and consumer spending. If borrowing and spending slow down too fast, economic growth weakens. When that happens, the Federal Reserve will decrease the Federal funds rate to stimulate borrowing and consumption.

Investor demand for Treasury bonds

Mortgage rates often follow Treasury yields. Rates for other types of borrowing may vary by lender and borrower’s financial profile.

Treasury bond yields are established through U.S. Treasury auctions, where investor demand plays a role in determining yields. When investor demand for Treasury bonds is high, the yields can be low. When demand decreases, the yields are pushed higher to attract investors.

Treasury bonds are bought and sold on the open market; their yields are in constant motion. Because Treasury bonds are often viewed as lower-risk investments, demand may increase during economic uncertainty. When that happens, their prices rise, which lowers their yields. When demand declines, bond prices commonly fall, and yields move higher.

Generally, longer-term debt instruments, such as mortgages, take their cue from Treasury bonds. Currently, mortgage rates remain well above the historic lows reached in 2020 and 2021. As of May 7, 2026, Freddie Mac reported that the 30-year fixed-rate mortgage averages 6.37%.

How Do Interest Rates Affect the Economy When They Rise?

Following the financial crisis and Great Recession, the Fed lowered interest rates to near zero for several years. Borrowing became cheaper for consumers and businesses. That period showed how low interest rates affect the economy by encouraging spending, lending, and investment.

These conditions show how interest rates affect the economy beyond borrowing costs, including investor behavior, asset prices, and long-term market expectations.

In response to the recent rise in inflation, the Federal Reserve raised short-term interest rates. As of writing this, the benchmark sits within the target range of 4.25% to 4.50%.

Borrowing costs remain lower than the peaks seen in earlier decades, but they are still far above the unusually low-rate environment that followed the financial crisis. Where rates go from here may depend largely on inflation and how the Federal Reserve responds.

What happens when interest rates go up for consumers?

When interest rates rise, the cost of borrowing goes up, which can discourage consumers from borrowing. People with existing variable loans or credit card debt might have less disposable income if they need to pay more interest costs. In either case, consumer spending falls, which has a slowing effect on the economy.

Increased borrowing costs for business.

During the low-rate years, many businesses used lower borrowing costs to expand and cover operating costs. When borrowing costs rise, businesses may have less flexibility to pay workers or expand their markets.

Increased cost of home ownership.

When mortgage rates increase, monthly housing costs often rise as well. Borrowers taking out new mortgages or homeowners with adjustable-rate loans may have less discretionary income if their monthly payments rise.

Increased savings rate.

Higher rates can encourage some households to save rather than spend, especially when cash savings begin offering more competitive yields. Lower consumer spending influences overall economic growth. Some investors may also reconsider how much they allocate to stocks versus fixed-income investments, though market conditions and investment returns can vary.

Increased value of the dollar.

The U.S. national debt is approximately $39 trillion, according to U.S. Treasury Fiscal Data. As interest rates rise, the cost of servicing federal debt also increases, which may place additional pressure on future budgets and deficits. As time passes, those pressures can become another factor investors watch when evaluating interest rates and the economy.

How can raising the interest rate help the economy?

The economy is too complex for broad statements like, “higher interest rates are good,” or “low rates are bad.” As interest rates rise, borrowing becomes more expensive for households and businesses. That can affect spending patterns and market performance.

Higher rates are often used to temper consumer and business demand when inflation remains high. Higher borrowing costs may lead some households and businesses to reduce spending or delay major purchases. Declining interest rates help stimulate the economy. However, if the economy grows too fast, it can trigger inflation.

Bond prices and interest rates often move in opposite directions. When market rates rise, the price of existing bonds with lower fixed payments often falls; when market rates fall, those existing bonds may become more favorable to investors.

Understanding the effects of interest rates on the economy can help inform conversations about your financial plan and investment strategy. Interest rates are only one part of the overall economic picture. They don’t move in isolation, and broader economic conditions also shape how markets respond across different market cycles.

You don’t have to be an expert on how interest rates affect the economy. A qualified financial advisor can help you to plan for the future.

Schedule a complimentary assessment with Dechtman Wealth Management to discuss how changing interest rates may affect your financial plan.