Last updated: July 2026
BusinessLoanCalc is a free, independent tool for estimating monthly payments, total interest, and true cost across common small business financing types — SBA 7(a), SBA 504, term loans, equipment financing, lines of credit, and microloans. It is not affiliated with the Small Business Administration, any bank, Certified Development Company, or online lender — it exists to help a business owner sanity-check a quote before signing.
The tool uses a standard amortization formula to convert loan amount, APR, and term into a fixed monthly payment, then derives total interest and total cost of capital from that. When an origination fee is entered, it estimates an effective APR that accounts for the fee reducing net proceeds relative to the amount repaid — the same concept lenders use when disclosing APR versus a stated note rate. The preset rate ranges shown for each loan type (SBA 7(a), SBA 504, term loans, etc.) reflect commonly published market ranges and are starting points for comparison, not quotes.
It does not perform a credit or DSCR qualification check, does not know your specific lender's fee schedule, and does not model prepayment penalties, factor-rate products (merchant cash advances), variable-rate resets, or the SBA guarantee fee charged on 7(a) loans. It does not access SBA, bank, or lender systems and cannot tell you whether you qualify for a specific product. Every number here is a planning estimate, not a loan offer or a substitute for a lender's official Loan Estimate or term sheet.
This site is not connected to the SBA, any bank, Certified Development Company, or online lending platform. For an actual quote or eligibility determination, contact an SBA-approved lender or your bank directly; for tax treatment of loan interest, consult a CPA.
Questions or corrections? Reach out via the contact details on the privacy page.