Debt‑to‑Income Ratio Calculator for Roofing Contractors

If the monthly payment shown fits comfortably within your cash flow, you likely qualify — the next step is a soft‑pull rate check. Actual rates still depend on your credit profile and the specific lender.

What changes your rate / answer

• Credit score – Higher scores unlock lower APRs; 650+ can qualify for 0% down on equipment financing, while scores near 580 still get approved at higher rates.
• Loan term – Extending the term reduces each payment but raises total interest paid.
• Collateral or down payment – Offering the roof‑truck, lift equipment, or cash reduces perceived risk and can shave points off the APR.
• Revenue & time in business – SBA 7(a) loans require at least 24 months operating history and $100K+ annual revenue; many term loans need 12 months and similar revenue levels.
• Debt mix – Swapping high‑interest credit‑card balances for a lower‑cost equipment loan can lower the overall DTI.

How to use this

• Enter the total of all monthly obligations (existing loans, credit cards, payroll financing, and any factoring fees).
• Input your average monthly gross revenue from roofing contracts.
• The calculator divides debt by income to produce a DTI percentage.
• Compare the result to the common lender threshold of 35% for low‑interest roofing loans and the absolute maximum of 43% used by many SBA programs.
• If the ratio is high, experiment with a smaller loan amount, a longer term, or a larger down payment directly in the tool above to see how the DTI shifts.

Bottom line

A DTI under 35% puts you in the sweet spot for the cheapest roofing loan rates. If you sit above that line, consider boosting your down payment, extending the term, or consolidating existing debt to bring the ratio down.

For a deeper look at the metrics lenders scrutinize, see our Financial Health Check for Roofing Contractors. And for a side‑by‑side comparison of equipment financing versus an SBA 7(a) loan, the Roofing Contractor Financial Health Check: Loan Readiness in 2026 breaks down the trade‑offs.