Why Clients Ask for Proof of Insurance

When a client asks you to "send proof of insurance" before they'll sign, it can feel like a hoop to jump through. It isn't. They're doing exactly what a well-run business should do: making sure that if something goes wrong on your watch, the cost lands on your policy and not theirs. Understanding what they're really asking for — and why — turns a friction point into a fast yes.

What they're actually managing

A client who hires you is taking on your risk by association. If your crew damages their building, your product injures their customer, or your work causes them a loss, they could get pulled into the claim. Requiring proof of insurance is how they push that risk back onto you, where it belongs.

In other words: they're not doubting you. They're refusing to self-insure your exposure. Any client sophisticated enough to require it is a client worth having. What is business insurance.

What "proof of insurance" usually means

In almost every case, they want a certificate of insurance (COI) — a one-page document from your insurer showing your coverage types, limits, and effective dates. It proves the policy exists and meets their requirements. Certificates of insurance explained.

Often they'll ask for two specific things beyond the basic certificate:

• Minimum limits — e.g., $1M per occurrence / $2M aggregate general liability, sometimes more.
• Additional insured status — adding their business to your policy so they're covered for claims arising from your work. This is the part that actually shifts the risk. Business insurance terms.

Why the additional insured request matters most

Naming the client as an additional insured is the real point. A plain certificate just proves you have coverage. Being added as an additional insured means your policy may respond to a claim against them that arises from your work — that's the protection they actually want. It's the difference between "I see that you're insured" and "your insurance now backs me up for the work you do for me."

Think of it like a subcontractor signing onto the general contractor's safety plan. Showing you own a hard hat is fine. Agreeing that your coverage extends to protect the people who hired you is what actually keeps the job site's risk where it belongs.

Why responding fast wins you work

Here's the systems insight most contractors miss: the COI is often the last gate before a signed contract. A client ready to hire you is waiting on that one document. The vendor who produces a correct certificate within the hour looks buttoned-up and closes the deal; the one who takes three days to chase their agent looks disorganized and gives the client time to reconsider. Speed here is a competitive advantage, not just an admin task. How to get a COI fast.

How to be ready before they ask

• Carry the limits your typical clients require, so you're never scrambling to raise them mid-deal.
• Know your broker's turnaround for issuing certificates and additional insured endorsements.
• Keep a current certificate on hand and request client-specific ones as needed.
• Confirm whether each client needs additional insured status, not just a basic certificate.

A broker who can turn certificates around quickly is part of what makes you easy to hire. How brokers help.