Small Business Loan Calculator: How Much Can You Borrow?

Whether you are launching a startup or expanding an established business, understanding how small business loans work is essential. Borrowing too little leaves you underfunded; borrowing too much creates a payment burden that can sink a profitable business. This guide helps you find the right balance.

Types of Small Business Loans

Not all business loans are created equal. Here are the most common options:

• SBA loans: Backed by the Small Business Administration, these offer the lowest rates (typically 6% to 9%) and longest terms (up to 25 years for real estate), but require extensive paperwork and strong credit.
• Term loans: A lump sum repaid over a fixed period, usually 1 to 10 years. Rates range from 7% to 30% depending on the lender and your creditworthiness.
• Business lines of credit: Flexible borrowing up to a set limit. You only pay interest on what you draw. Great for managing cash flow.
• Equipment financing: The equipment itself serves as collateral, often resulting in better rates and easier approval.
• Invoice factoring: Sell outstanding invoices at a discount for immediate cash. Useful for B2B businesses with slow-paying clients.

How Lenders Determine Your Loan Amount

Lenders evaluate several factors when deciding how much to lend:

• Revenue and cash flow: Most lenders want your business to generate enough revenue that the loan payment is no more than 25% to 35% of monthly cash flow.
• Credit score: Personal scores above 680 and business scores above 75 (on the PAYDEX scale) open the best options.
• Time in business: Most lenders require at least 2 years of operating history for favorable terms.
• Collateral: Assets you pledge reduce lender risk and can increase the amount you qualify for.
• Debt-service coverage ratio (DSCR): Lenders typically want a DSCR of at least 1.25, meaning your net operating income is 125% of your annual debt payments.

Estimating Your Monthly Payment

A standard business term loan uses the same amortization formula as a personal loan. For a $100,000 loan at 8% over 5 years, the monthly payment is approximately $2,028, and total interest paid is about $21,660.

Shorter terms mean higher payments but less total interest. A 3-year term on the same loan raises the payment to $3,134 but reduces total interest to $12,812.

Tips for Getting Approved

• Prepare a clear business plan that shows how the funds will be used and how they will generate revenue.
• Organize your financial statements — at least two years of tax returns, profit-and-loss statements, and balance sheets.
• Reduce existing debt before applying to improve your DSCR.
• Consider starting with a smaller loan to build a borrowing track record with the lender.

Calculate Your Loan Payment

Use our loan calculator to estimate your monthly payment and total cost for different loan amounts, rates, and terms. Having these numbers ready strengthens your negotiating position with lenders.

The right loan at the right terms can accelerate your business growth. Take the time to understand your options and borrow strategically.