Loan Payment / SBA Calculator for Construction

Construction businesses have unique financing needs driven by two factors: heavy equipment costs and bonding requirements. A single excavator or crane can cost $150,000–$500,000, and most contractors need a fleet of equipment to operate competitively. SBA 504 loans are specifically designed for heavy equipment and real estate purchases, offering lower down payments (10% vs. the typical 20–25%) and longer terms (10–20 years) at below-market fixed rates. For working capital — covering payroll and materials during progress billing gaps — an SBA 7(a) loan or a line of credit is more appropriate. The intersection of financing and bonding is critical: surety companies issuing performance bonds review your balance sheet, and excessive debt can reduce your bonding capacity, which directly limits the size of projects you can bid on. Bonding costs run 1–3% of contract value and require strong financial statements, so every financing decision affects your competitive position. This calculator is pre-loaded with typical construction financing scenarios — $250K equipment loan at 7% for 10 years and a $150K working capital line — so you can see the monthly debt service obligation and ensure it does not strain your cash flow during slow months or reduce your bonding capacity below the threshold needed for your target project size.