Workers’ comp experience mod after an acquisition
the business changes hands. the loss history needs a closer look.
Before you carry the seller’s workers’ comp cost into your model, find out whose experience is being rated and what the ownership change could affect.
The short answer
A workers’ compensation experience modification adjusts eligible employers’ premium based on their loss experience under the applicable rating plan. After an acquisition, ownership and combination rules may change how that experience is used. A new owner, entity, or policy does not automatically mean a clean rating history.
Put it into practice- 01Find the right record.Get the current rating worksheet, legal entities, payroll, and claims information.
- 02Report the ownership facts.Give the carrier the structure and dates needed for the applicable bureau’s review.
- 03Budget without guessing.Keep the confirmed mod separate from assumptions about the post-close result.
ask for the worksheet, not just the factor.
A single number from the seller is not enough to validate the cost. Obtain the current experience-rating worksheet and identify the entities, effective date, payroll, classifications, and losses behind it. Ask the broker to explain whether the business is experience-rated at all.
Match the rating record to the business you are actually buying. A division, a business insured through a parent, or an employer using a PEO can require a different review from a standalone company. Do not substitute a consolidated parent’s factor without understanding the basis.
References: NCCI: ABCs of experience rating
put the ownership chart beside the policy.
Provide the legal names and ownership before and after the transaction, the effective date, which operations continue, and which employees move. Those facts help the carrier and applicable rating organization determine the treatment of the experience.
NCCI provides ERM-14 for ownership changes, mergers, consolidations, and combinations. Some states use independent bureaus or separate intrastate processes. Confirm the correct recipient, form, and reporting deadline for this risk rather than assuming one national filing path.
References: NCCI: ownership reporting and ERM-14
a mod is not the whole workers’ comp price.
Payroll, classifications, applicable rates, insurer pricing, policy structure, and audit outcomes also matter. A comparison that holds none of those constant will not tell you what caused the cost difference.
Ask for a post-close estimate that identifies the rating assumptions and unresolved ownership determination. If the final rating outcome is pending, show that uncertainty in the forecast. Do not treat a requested correction as an approved correction or book a promised saving before the evidence supports it.
Current worksheet and effective date- Payroll and classifications used in the estimate
- Ownership submission status and outstanding questions
- Final carrier or bureau response when available
follow the right state path.
The guides below focus on acquisition-related ownership and rating questions in Texas, Arizona, New York, North Carolina, and Nevada. They are not interchangeable state-name pages. Each points to the relevant regulator or rating organization and a distinct handoff issue.
If employees work in more than one state, ask whether the risk is rated on an intrastate or interstate basis before selecting a form. Your business address alone does not answer that question.
check the state-specific questions.
- TexasTexas coverage choices and Texas rating exceptions both matter. Know which program the seller uses before carrying its workers’ comp cost into your model.
- ArizonaThe seller’s rate and the seller’s experience mod are not the same thing. Check both before you assume what the acquired business will cost to insure.
- New YorkOwnership reporting, rating treatment, and employee coverage are different questions. Give each a clear answer before you rely on the seller’s workers’ comp number.
- North CarolinaA North Carolina business may need the NCRB intrastate process or an interstate review. Find out which one applies before the ownership paperwork gets sent to the wrong place.
- NevadaA policy showing up in the coverage record does not tell you how the acquisition affects experience rating. Keep those two checks separate in the deal file.
the ownership-review packet.
Use this packet to make the broker’s review more useful. Do not put employee medical details in a general deal memo.
| Record | Why it matters | Who supplies it |
|---|---|---|
| Ownership chart | Shows entities and control before and after close | Buyer and seller counsel |
| Rating worksheet | Identifies the current experience record | Seller, carrier, or rating organization |
| Payroll and class schedule | Connects the rating to actual operations | Payroll lead and broker |
| Loss runs | Shows reported claims and valuations | Authorized carrier or administrator |
| Submission and response | Separates reported facts from the rating outcome | Broker, carrier, and applicable bureau |
Good to know
your questions, answered.
Does an asset purchase reset the experience mod?
Not automatically. The applicable ownership and experience-rating rules, transaction facts, and bureau determination matter. Ask for a documented review rather than relying on the purchase label.
Can I use the seller’s mod in my acquisition model?
It can be a stated starting assumption, not a guaranteed buyer result. Confirm the relevant entities, effective period, rating basis, and ownership treatment.
More to protect. Less to manage.
understand the workers’ comp number before you inherit it.
Riza helps organize the rating records, ownership questions, and cost assumptions so you can take a better-supported number to your deal team.
A broker will confirm the scope and next steps with you. Agree a secure route before sharing confidential deal records.