A bid can look fine on the day it goes out and still lose money the day the audit comes back. The gap between the two usually traces back to the same root cause: general liability and workers’ comp costs treated as an afterthought instead of a line item in the bid itself.
Key Takeaways
- Underbidding often starts with GL and WC costs estimated as a rough percentage instead of tied to actual classification and payroll data.
- A premium audit reconciles estimated payroll against actual figures, it doesn’t forgive an inaccurate original estimate.
- A Job Cost Estimator ties insurance costs to the specific job being bid, surfacing a realistic number before the bid goes out.
- Insurance and job costing need to be the same conversation, not two separate departments.
How Underbidding Actually Happens
Job costing tends to focus on materials, labor, and schedule — the visible, tangible costs of a project. Insurance costs, particularly GL and WC, often get estimated using a rough percentage or last year’s number, rather than a calculation tied to this specific job’s actual classification codes and payroll allocation. That shortcut works fine until it doesn’t, and when it doesn’t, the gap shows up at audit, not at bid time, which is exactly when it’s too late to adjust the price.
What a Job Cost Estimator Actually Catches
- Ties GL and WC cost estimates to the specific classification codes and payroll allocation for the job being bid, not a rough historical average.
- Surfaces a realistic insurance cost before the bid goes out, not after the audit comes back.
- Gives estimators a repeatable tool instead of relying on institutional memory of “what insurance usually costs.”
Why This Connects Directly to Audit Surprises
A premium audit reconciles estimated payroll and classification against actual figures at year-end. If the original bid underestimated either one, the audit doesn’t forgive that, it corrects it, and often with a bill that lands months after the job’s margin was already booked. The fix isn’t better audit preparation. It’s a more accurate estimate at the start.
Insurance and Job Costing Aren’t Two Departments
Treating them as separate conversations is exactly how the gap forms. A job cost estimator built with real classification and payroll data closes it before the bid goes out, which means the margin you booked at the start of the job is the margin you actually keep at the end of it.
This is exactly the kind of gap a broker who only shows up at renewal never catches. Our Construction Practice Group works with contractors on job costing before the bid goes out, not after the audit comes back, using tools built for this industry rather than generic carrier templates. That is the difference between a broker who places your policy and a team that helps you bid.
