Businesses' Cheapest Loan Options: What Costs Least and Who Qualifies

The cheapest business loans are usually SBA 7(a) and 504 loans, term loans and lines of credit from banks and credit unions, and secured equipment financing. Which one is cheapest for you depends on three things: your credit, how long you have been operating, and what you can pledge as collateral. A loan with the lowest advertised rate can still cost more than a slightly higher-rate loan once fees, term, and prepayment rules are counted. This article ranks the main low-cost options by typical cost, explains how to compare offers on true cost, and covers what to do to improve your chances of getting the lowest price. It does not quote average rates, because they move with the market and differ by lender. Where a figure depends on current rules, it points you to the source to check. How to Measure the Real Cost of a Business Loan The interest rate is the price of borrowing the principal, expressed as a yearly percentage. The annual percentage rate (APR) goes further: it folds in required fees such as origination, packaging, guarantee, and closing costs, and spreads them over the term. When you compare two offers, APR is the fairer number, though lenders calculate it in slightly different ways, so confirm what is included. For a deeper walkthrough, see our guide to business loan interest rates explained . Why factor rates are not APRs Merchant cash advances and some short-term loans quote a factor rate , such as 1.2. You multiply it by the amount advanced to get the total payback. It is not an annual figure, and it looks far cheaper than it is when the term is short. For example, imagine you receive $50,000 at a factor rate of 1.2 and repay $60,000 over six months. The cost is $10,000, or 20% of the advance. Because repayment is spread across the term, you hold on average roughly half the money for the whole period. A rough approximation is the cost divided by the amount, scaled to a year, and adjusted for the declining balance: 20% over half a year is about 40% simple annual, and roughly double that, near 80%, once you account for the shrinking balance. The precise figure depends on payment timing, but the point holds: a 1.2 factor rate on a six-month term is nowhere near a 20% APR. Costs that sit outside the rate Prepayment penalties: fees for paying early, which can erase the savings from refinancing. Origination and packaging fees: often a percentage of the loan, deducted from proceeds. Collateral liens: a blanket lien can limit your ability to borrow elsewhere. Personal guarantees: they do not add dollars to the loan, but they put your personal assets at risk. Finally, look at total repayment dollars, not just the monthly payment. A longer term lowers the payment but increases total interest. A $200,000 loan stretched over ten years costs far more in interest than the same loan over five, even at an identical rate. You can run the numbers yourself with this guide on how to calculate business loan payments . SBA 7(a) and 504 Loans: Low Rates With Long Terms The Small Business Administration does not lend money directly. It guarantees a portion of a loan made by a participating lender, which reduces the lender's risk and allows longer terms and more flexible underwriting than a conventional loan would offer. That is why SBA loans so often sit at the top of low-cost lists. 7(a) loans The 7(a) program is the general-purpose option, used for working capital, equipment, refinancing, acquisitions, and some real estate. Rates are capped: the SBA sets a maximum spread over a base rate such as prime, and the allowed spread varies with loan size and term. Lenders can price below the cap. Because both prime and the SBA's rules change, check the current caps on sba.gov before relying on any figure; as of October 2026, that page is the authoritative source. Eligibility rules matter too, so review the SBA 7(a) loan requirements before you apply. 504 loans The 504 program is built for owner-occupied commercial real estate and major fixed assets such as heavy machinery. It pairs a bank loan with a portion funded through a certified development company (CDC), and the CDC portion carries a long-term fixed rate. For borrowers buying property, the long fixed-rate component is the main draw, since it makes the cost predictable for decades. The tradeoffs Speed: approval and closing often take weeks to months, not days. Documentation: expect detailed financial statements, tax returns, a business plan or use-of-funds narrative, and a debt schedule. Personal guarantee: typically required from owners with meaningful ownership stakes. Fees: the SBA charges guarantee fees on many loans, and lenders may add their own packaging and closing costs. The fee schedule changes, so verify the current one on sba.gov and confirm the total in the lender's APR disclosure. If you can wait and have the paperwork, an SBA loan is often the lowest-cost route for large, long-lived purchases. If you need cash next week, it is the wrong tool. Bank Term L