Business Loan Calculator

Estimate monthly payments, total interest and debt service coverage ratio (DSCR) for a small business loan.

Your numbers

Monthly payment$2,024
DSCR
3.5×
Total interest
$92,883
Total cost incl. fees
$95,883
Principal vs interest by year
$0$10K$20K$30K13579Principal · 1: $8,961Interest · 1: $15,327Principal · 2: $9,949Interest · 2: $14,339Principal · 3: $11,045Interest · 3: $13,243Principal · 4: $12,263Interest · 4: $12,026Principal · 5: $13,614Interest · 5: $10,674Principal · 6: $15,114Interest · 6: $9,174Principal · 7: $16,780Interest · 7: $7,508Principal · 8: $18,629Interest · 8: $5,659Principal · 9: $20,682Interest · 9: $3,606Principal · 10: $22,962Interest · 10: $1,327
  • Principal
  • Interest

How the business loan calculator works

Payment uses the amortization formula. DSCR = annual net operating income ÷ annual debt service; lenders typically want 1.25 or higher.

Example

Using the default inputs (Loan amount: $150,000; Interest rate: 10.5%; Term (years): 10; Loan fees: $3,000; Annual net operating income: $85,000), the calculator returns monthly payment of $2,024. Change any field above to see your own result and charts update instantly.

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Frequently asked questions

What is the SBA 7(a) rate range?

Typically prime plus 2.25%–4.75%, depending on loan size and term.

What is DSCR?

A measure of whether business cash flow can cover loan payments.

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Estimates are for educational purposes only and are not financial, tax or legal advice. Results depend on your inputs and simplified assumptions; tax figures reflect 2026 federal rules and may differ from your situation. See our disclaimer. © 2026 FinanzCalc.