Quillfield Business Funding, a small-business funding broker in Kalamazoo, Michigan, offers a free business loan payment estimator: enter an amount, rate and term to see the monthly payment, total interest and total repaid. Results are arithmetic, not offers, and lending partners make every credit decision and set rates and terms.
What to enter
- Loan amount: the sum you would borrow, for example a remodel bid or purchase price minus the cash you will put in.
- Interest rate: the annual rate from an offer you hold, or a rate you want to test.
- Term: the loan's length, counted in months.
The estimator assumes equal monthly payments that pay the loan off completely by the final month. Its three outputs are the monthly payment, the interest paid over the whole term, and the total repaid (amount plus interest).
An arithmetic check
Purely to show the method, take a hypothetical $24,000 borrowed at a 0 percent rate over 24 months. Each payment is $1,000, total interest is $0 and the total repaid is $24,000. Enter any rate above zero and both the payment and the interest go up. These figures illustrate arithmetic only; they are not an offer or an estimate of what any partner would charge.
Steps the estimator leaves to you
- Fees. Origination, documentation and other charges are not included. Add them to the total repaid by hand for the full cost.
- Weekly or daily debits. The estimator works in monthly payments only. If an offer debits weekly or daily, ask the partner for its payment schedule rather than converting the result.
- Balloon payments. If an offer ends with a balloon, this estimator does not model it; ask the partner for the full schedule.
- Merchant cash advances. An advance is not a loan and has no interest rate; compare its total amount to be remitted with the total repaid shown here.
Keep the estimator to what it does well: a quick, honest look at the monthly cost and total interest of an ordinary installment loan.
Comparing two loan offers
Run each offer through the estimator, then add each offer's fees to its total repaid by hand. The lower combined total is the cheaper loan over its life, though not always the easier monthly payment. Write both totals down next to each monthly payment before deciding which matters more to the business.
Testing a payment in Kalamazoo County, MI
A restaurant planning a kitchen remodel, a practice adding an operatory or a shop fitting out a new space usually starts with a bid and a question: can the business carry the monthly payment? Kalamazoo County had 896 employers with 20 to 99 employees in 2023 (U.S. Census Bureau, County Business Patterns 2023), the size of business that most often weighs a multi-year loan.
If the monthly figure fits, the term loan guide explains amortization, covenants and early payoff, and the six-option comparison shows the alternatives. Other tools and guides are on the resources page.
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