Contractor License Bond Amount Calculator
Estimate the required surety bond amount for your contractor license based on your state, contractor type, and business revenue. Bond amounts vary by jurisdiction and license classification.
Formula
Required Bond Amount = Base Bond (from state + license type + revenue tier) + Employee Surcharge
Employee Surcharge: $0 (1–5 employees) | $2,500 (6–20) | $5,000 (21–50) | $10,000 (51+)
Estimated Annual Premium = Required Bond Amount × Credit-Based Premium Rate
Premium Rates by Credit Score: Excellent (720+) = 1.0% | Good (680–719) = 1.5% | Fair (620–679) = 2.5% | Poor (<620) = 5.0%
Premium Range = Annual Premium ± 20% (reflects surety market variability)
Assumptions & References
- Bond amounts are based on published state licensing board requirements as of 2024.
- Revenue thresholds reflect tiered bond requirements used in states like CA, TX, FL, NC, and CO.
- Premium rates (1%–5%) reflect typical surety market rates based on owner personal credit score.
- Employee surcharges are estimates; some states base bond amounts on payroll rather than headcount.
- California CSLB: $25,000 bond required for all C and B license classifications (cslb.ca.gov).
- Washington L&I: $12,000 general / $6,000 specialty (lni.wa.gov).
- Nevada NSCB: $30,000–$50,000 depending on license class (nscb.nv.gov).
- This calculator provides estimates only. Verify exact requirements with your state licensing board before applying.
- Some states (e.g., TX, IL, CO) regulate bonds at the municipal level; local requirements may differ.