Wrap-Up Insurance · Bidding
Deductions & Credits: How a Wrap-Up Changes Your Bid
Quick answer: When you bid a wrap-up job, the sponsor already provides the project’s general liability (and sometimes workers’ comp), so you remove the insurance cost you would normally carry for that scope from your bid. That removal is the “bid deduct” or “insurance credit.” The trick is deducting only the cost you truly save on this project’s wrapped coverage — not your entire insurance program — and keeping your overhead, admin, and excluded-coverage costs in the number.
A wrap-up doesn’t just change who carries the insurance — it changes how you build your bid. Because the owner (OCIP) or general contractor (CCIP) buys the project general liability, you are not paying for that coverage on this job. In exchange, the sponsor expects you to take that saved cost out of your price. Get the deduct right and everyone wins. Get it wrong and you either give away margin or price yourself out of the work.
What is a bid deduct?
The bid deduct — also called the insurance credit or wrap credit — is the dollar amount a subcontractor subtracts from a bid to reflect the insurance the wrap now provides instead of the sub. Since your normal bid includes a loading for general liability (and possibly workers’ comp and excess), and the wrap covers those on-site exposures for this project, you back that cost out so the owner isn’t paying for the same coverage twice.
Sponsors often require subs to show the deduct as a separate line so the savings are transparent and auditable.
What exactly do I deduct — and what stays in?
This is where accuracy matters. You deduct only the cost of the coverage the wrap actually replaces for this project. You keep everything the wrap does not provide.
| Typically deducted | Typically kept in the bid |
|---|---|
| General liability cost for on-site work on this project | Auto liability for your vehicles |
| Workers’ comp for enrolled on-site labor (if the wrap includes WC) | Tools, equipment, and property coverage |
| Excess / umbrella cost the wrap replaces on this job | Professional / design liability |
| Off-site and shop operations coverage | |
| Your own overhead, safety, and admin costs |
Two mistakes are common. The first is deducting your entire insurance cost — auto, tools, professional and all — when the wrap only replaces the project GL. That over-deducts and hurts you when a claim on excluded work hits your own policy. The second is deducting nothing meaningful and pricing yourself out. The correct number sits between those extremes and is specific to your trade, payroll, and this project.
How is the deduct calculated?
There are two broad approaches, and the sponsor’s bid instructions usually specify which to use:
- Rate-based. You apply your normal GL (and WC, if wrapped) rate to the payroll or contract value for this project’s enrolled scope, and deduct that figure. This is the most defensible method because it ties directly to what you would otherwise have paid.
- Percentage-of-contract. Some programs ask for the deduct as a percentage of the bid. This is simpler but blunter, and you need to be sure the percentage reflects your actual cost, not a generic assumption.
Whichever method applies, base it on your real, current insurance rates. Your broker can help you isolate the GL (and WC) rate that applies to the wrapped scope so the deduct is grounded in fact rather than a guess.
Say your base bid for a scope is built with a general-liability loading calculated from your normal GL rate applied to the project payroll. If that GL loading comes to a given dollar amount, and the wrap replaces exactly that on-site GL coverage, that amount is your deduct. Your auto, tools, professional coverage, overhead, and profit all stay in the bid. The result: the owner isn’t double-paying for GL, and you haven’t stripped out costs you still incur.
This is a conceptual illustration. Actual rates, payrolls, and program rules vary widely; do not budget off a generic percentage.
Why does the sponsor benefit too?
The bid deduct is how the wrap’s cost efficiency actually reaches the project budget. By buying coverage once at volume and collecting deducts from every enrolled sub, the sponsor avoids paying for each trade’s individually marked-up insurance. The sponsor’s single premium, spread across the whole project, is frequently less than the sum of all those separate policies would have been — and the deducts are what capture that difference. It only works, though, if the deducts are calculated honestly and consistently, which is why sponsors audit them.
Will I be audited on the deduct?
Often, yes. Many wrap programs reconcile the deduct against your actual payroll and rates at project close. If you deducted based on estimated payroll and the real payroll differs, there may be a true-up. Keep clean records of how you built the deduct — the rate used, the payroll basis, the scope it covered — so an audit is straightforward rather than a dispute.
Common mistakes to avoid
- Over-deducting by removing coverage the wrap doesn’t provide (auto, tools, professional).
- Forgetting excluded exposures still cost money — keep those in your number.
- Using a stale rate that doesn’t match your current insurance cost.
- Ignoring the completed-operations tail — if it’s short, you may need to buy your own coverage to extend it, which is a real cost. See our article on the completed-operations gap after a project closes.
- Not confirming enrollment first — deducting for coverage you’re not actually enrolled in. Review our pre-bid verification checklist.
Want your wrap deduct calculated right the first time?
Thrive Risk Management helps California subcontractors isolate the correct insurance credit for OCIP and CCIP bids — so you stay competitive without giving away margin. Driven by integrity.
Call (818) 356-8150 or visit wrapinsuranceca.com.