The Federal Reserve raised its target rate on September 16, a quarter point to 3.75 to 4 percent. How interest rates affect business loans depends on which loan: the increase reaches short term borrowing quickly, while the cost of long term borrowing was set months ago. Lines of credit, seasonal working capital and most construction loans in their draw period are priced off the prime rate published in the Wall Street Journal, and prime moves with the Fed. Term loans and commercial real estate loans are usually priced off Treasury yields, matched to how long the rate is fixed. The 5-year Treasury is the common one, and it rose 1.12 points before the Fed acted: 3.74 percent on January 2, 4.86 percent on September 16. Here is which rate reaches which loan, what a move does to a payment and to how much you can borrow, and what to do before your next reset.
The Fed sets a target for a short term rate, the rate banks charge each other overnight. Prime moves with it, and prime is the index on most of what a business borrows for the near term: the operating line, seasonal working capital, construction loans while the project is drawing, and term loans written with a variable rate. When the Fed moves a quarter point, that debt usually moves a quarter point at its next repricing, so the cost of running the business next month is what this week's decision actually changed.
Term debt works differently. It is usually priced off Treasury yields, matched to how long the rate is fixed, so a five year fixed period follows the 5-year Treasury and a ten year fixed period follows a longer yield. A lender adds a spread for the credit, the collateral and the structure, and the sum is your rate for the fixed period. The Fed influences Treasury yields but does not set them. Bond investors do, based on where they expect inflation, growth and the Fed itself to go over the next five years. That is why a Treasury yield can move a full point in a year the Fed moves a quarter, and why it can fall while the Fed is still raising.
So the first question when rates are in the news is which kind of debt you carry. Your note names the index. Here is the usual pattern.
| Kind of debt | Usually priced off | When a rate change reaches you |
|---|---|---|
| Business line of credit | Prime rate | At the next repricing, often within a month |
| Variable rate term loan | Prime or another short term index | At each repricing date in the note |
| Term loan with a fixed rate period | A Treasury yield matched to the fixed period, plus a spread, set at closing | At closing, then not again until the reset or maturity |
| Commercial real estate loan | A Treasury yield matched to the fixed period, plus a spread | At the reset date or when the loan matures |
So a business with a drawn operating line and a fixed rate building loan felt this week's decision on one of the two and not the other. The line reprices and the building payment does not, until its reset date arrives, and the 5-year Treasury has already said which direction that conversation has moved this year.
Take an illustrative $1,000,000 loan on a 20 year amortization with the rate fixed for five years. The rates below are examples to show the arithmetic, not quotes. The first column assumes 6.00 percent. The second adds the 1.12 points the 5-year Treasury moved between January 2 and September 16, as an example of the move in term debt pricing.
| $1,000,000, 20 year amortization, illustrative rates | 6.00% | 7.12% |
|---|---|---|
| Monthly payment | $7,164 | $7,825 |
| Annual debt service | $85,972 | $93,902 |
| Balance left at the end of year five | $848,996 | $864,135 |
| Additional payments over the five years | $39,652 |
An extra $661 a month does not sink a healthy business. The cost is less visible than that. It is about $7,900 a year of cash flow that was available for payroll, equipment or a distribution, and it leaves $15,139 more principal at the five year mark, which is the balance that reprices next. On a line of credit the math is simpler and faster: every quarter point on a $250,000 average drawn balance is $625 a year, starting at the next repricing.
This is the effect that surprises owners most, because it shows up in the loan amount rather than the payment. Lenders size term debt to cash flow using the debt service coverage ratio: cash available for debt service divided by the annual payment. Say a Chaska manufacturer buying its building has $150,000 a year available for debt service, and the lender is looking for coverage of 1.25 times, an illustrative figure. That caps the annual payment at $120,000, and the rate decides how much loan $120,000 a year will carry.
Same business, same building, same cash flow, and $117,883 less loan. The gap has to come from somewhere: a larger down payment, a longer amortization, a lower price, or a different structure. Our post on how much a business can borrow using DSCR walks through the arithmetic in full. When a purchase that worked on paper in the spring comes up short in the fall, the rate is often the reason, and it is worth rerunning the numbers before deciding the deal is gone.
No structure wins in every market, and nobody knows where Treasury yields will be when your loan resets. The better question is what the debt pays for and how long you will carry it.
Match the rate to the asset. A line of credit that funds inventory and is paid down every season turns over too fast for a variable rate to do much damage, which is why most lines are variable. A building a Waconia contractor plans to own for twenty years is a different decision. Our business real estate loans fix rates for up to 10 years on 15 to 25 year amortizations, and the fixed period that lines up with the business plan is usually worth more than a slightly better rate on the day you sign.
Decide how much payment change the business can absorb. If a two point rise in prime would squeeze payroll, the savings a variable rate offers today are not worth the exposure. If the business carries plenty of coverage and expects to pay the loan down early, variable may cost less over the life of the debt.
Know what it costs to change your mind. Fixed rate loans often carry prepayment terms, and those terms decide whether you can refinance if rates fall or sell the property before the fixed period ends. Ask how prepayment works before you sign, not when you want out.
Rising rates make a fixed period look smart in hindsight, and falling rates make variable look smart. I would rather see a structure chosen for the business than for a rate forecast, because that is the one that holds up either way.
A reset or renewal coming up? Bring the note and your recent financial statements, and a lender can run the payment at today's index with you. The first conversation commits you to nothing. Talk with a business lender
The end of a fixed period is where a changing rate market lands on most term borrowers. A loan with a rate reset reprices at the index on the reset date plus the spread written in the note. A loan with a balloon needs a new loan at whatever the market is that month. Our post on balloon payments and rate resets covers how the two differ. In either case, the work is the same:
If moving the loan is on the table, our guide on when to refinance a business loan covers the costs to weigh against the rate.
It is not a reason to delay a sound project waiting for rates to fall, or to rush one to get ahead of an increase. A building, an acquisition or a piece of equipment earns its return over ten or twenty years, and the rate on the first five is one input among several. If the project works at today's rate, it works. If it only works at a rate you are hoping for, that is the answer.
It is also not a reason to mix up the jobs your debt does. Putting seasonal working capital on a long term loan to lock a rate means paying interest on money the business does not need half the year. Financing a building on a line of credit because the rate looks lower today leaves a long lived asset on debt that reprices every month. Our post on how a business line of credit works covers where each belongs.
When rates sit still, a loan looks like a price. When they move, it becomes a conversation about structure: how long to fix, how to amortize, what the prepayment terms allow, and what happens at the reset. That conversation goes better with a lender who knows the business and brings up the reset 90 days ahead. Our senior lenders cover McLeod County, Carver County and the Twin Cities metro, and you can meet them on our team page. For the full range of small business loans we make, start there. If you are preparing a request, our guide on how to get a business loan in Minnesota lists what to bring, and property owners will find the rent roll and coverage detail in our guide to investment real estate financing.
"The owners who handle a rate change well are the ones who call 90 days before the reset, not the week it comes due. That gives us time to look at the whole picture, the payment, the amortization and the fixed period, and build a structure that fits the business instead of whatever the market happens to be doing."
Kevin Hegland, Senior Vice President and Senior Lending Officer, Carver CountyOn two tracks. Short term borrowing, such as an operating line, seasonal working capital or a construction loan in its draw period, is usually tied to the prime rate and reprices soon after the Federal Reserve moves. Long term borrowing is priced when it closes, often off a Treasury yield matched to the fixed period plus a spread, so a Fed decision does not change it until the fixed period resets or the loan matures; the bond market sets that cost, and it can move well before the Fed does. Higher rates also reduce how much a given cash flow can borrow, because the same annual payment supports a smaller loan.
Not during the fixed period. The rate stays as written until the reset date or maturity. The Fed's decisions reach a fixed rate loan indirectly, through their influence on Treasury yields, which set the rate at the next reset or renewal. They reach variable rate debt such as a line of credit directly.
Term debt is usually priced off Treasury yields, matched to how long the rate is fixed, plus a spread for credit, collateral and structure. A five year fixed period commonly follows the 5-year Treasury, which is why that yield is the one to watch on most business term loans and commercial real estate loans. Treasury yields move daily with the bond market and can move much more than the Fed's rate in a year: the 5-year was 3.74 percent on January 2, 2026 and 4.86 percent on September 16, 2026.
Match the rate to what the loan pays for and how long you will carry it. Working capital that is paid down and redrawn often fits a variable rate. Real estate or long lived equipment held for many years often fits a fixed period that lines up with the business plan. Weigh how much payment change the business can absorb, and ask how prepayment works before choosing a fixed rate.
It depends on the amortization and the size of the move. In an illustrative example on a 20 year amortization, $120,000 a year of debt service supports a loan of $1,395,808 at 6.00 percent and $1,277,925 at 7.12 percent, which is $117,883 or about 8 percent less for a 1.12 point increase.
Pull your notes and write down three things for each loan: the index, the reset or maturity date, and the prepayment terms. Put each date on the calendar 90 days ahead, and anything already inside that window is worth a conversation now, while every option is still open. If you bank somewhere else and want a second look at a reset or a new project in a market where rates have moved, our lenders will run the numbers with you.
Know your reset date before the market sets it for you. Bring the note. We will bring today's index and the structure options. Talk with a business lender
Keep reading: balloon payments and rate resets, and how much a business can borrow using DSCR.
Growing, together.
Treasury yields are daily par yield curve rates published by the U.S. Department of the Treasury for January 2 and September 16, 2026. The federal funds target range is from the Federal Reserve statement of September 16, 2026. Loan rates, spreads, coverage ratios, payments and loan amounts are illustrative examples calculated for this post, not quotes or offers. Actual terms depend on the borrower, the collateral and the structure, and every loan is subject to credit approval. Nothing here is tax, legal or investment advice. Page last reviewed September 2026.