Florida Subcontractor COI Requirements: What Every Contractor Needs to Know

If you are a general contractor, roofing company, landscaper, or any other Florida contractor who hires subcontractors, certificates of insurance are not optional paperwork \u2014 they are the difference between a clean audit and a five-figure surprise bill.

Why COIs Matter So Much in Florida

Florida\u2019s workers\u2019 compensation law requires that any subcontractor working on your job site either carry their own workers\u2019 comp coverage or be included in your policy. At audit time, your insurance carrier will ask for proof of coverage for every sub you used during the policy period. If you cannot produce a valid COI, the carrier will add that sub\u2019s estimated payroll to your audit \u2014 and charge you their premium rate.

For a roofing contractor using multiple uninsured subs, this can easily add $20,000\u2013$80,000 to an audit bill. We have seen it happen dozens of times.

What a Valid COI Must Show

A Certificate of Insurance is only valid for audit purposes if it shows the subcontractor\u2019s name and business address, the insurance carrier name and policy number, workers\u2019 compensation coverage with Florida as the covered state, policy effective and expiration dates that cover the period the sub worked for you, and your company listed as the certificate holder.

Common COI Mistakes That Cost Contractors Money

The most expensive mistake is collecting a COI at the start of a job and never checking if it expires mid-project. A COI that expired on June 1st does not cover work done in July \u2014 and the auditor will not give you credit for those months. Other common mistakes include accepting COIs that list a different entity name than the sub\u2019s actual company, failing to verify that the policy covers Florida specifically, and not keeping copies organized by policy period.

Building a Bulletproof COI Compliance System

The contractors who never get surprised by audit bills have a system: they collect a COI before any sub sets foot on a job site, they track every COI expiration date in a spreadsheet or compliance software, they send renewal reminders 30 days before expiration, and they keep all COIs organized by year in a dedicated folder. Audit Monkey manages this entire process for Florida contractors as part of our subcontractor compliance service.