New York workers’ comp experience mod after acquisition
know what follows the New York business after closing.
Ownership reporting, rating treatment, and employee coverage are different questions. Give each a clear answer before you rely on the seller’s workers’ comp number.
The short answer

New York’s experience-rating ownership rules are published by NYCIRB. Rule 3 addresses reporting ownership and combination changes and the Rating Board’s review of their effect. Check that process with the carrier. Also review disability and Paid Family Leave separately rather than treating workers’ comp as the entire employee-coverage record.
Put it into practice- 01Find the right records.Match the acquired employer to the policy, rating worksheet, payroll, and loss runs.

- 02Confirm the state path.Use the applicable regulator, carrier, and rating-organization process.

- 03Keep the budget honest.Separate the seller’s documented result from unconfirmed buyer assumptions.

use New York’s ownership-reporting path.
NYCIRB Rule 3 describes the 90-day carrier reporting requirement for ownership or combinability changes under the notification endorsement. It identifies ERM-14 and the Manage Ownership process, with review by the Rating Board. Confirm the applicable requirement and submission route with your carrier rather than simply sending an NCCI form somewhere else.
Treat 90 days as a stated reporting requirement to verify, not an automatic coverage extension or permission to wait. Other policy notices and transaction actions may be due sooner. Assign the filing before close and keep evidence of receipt.
References: NYCIRB: ownership changes and combination of entities
the Rating Board decides the effect, not the purchase label.
Rule 3 explains that the Rating Board reviews ownership information to determine the effect, if any, on the entities’ modifications. Supply the legal names, structure, ownership percentages, dates, and continued operations accurately. Complex facts may require further information.
An asset deal or new company name is not, by itself, a documented rating outcome. Keep the current worksheet and the proposed post-close assumption separate until the relevant determination is supported. Ask the broker which records should be updated when the response arrives.
References: NYCIRB: ownership changes and combination of entities
do not leave the other employee coverages behind.
New York WCB publishes separate requirements for disability and Paid Family Leave coverage, including legal-entity considerations. Check those obligations with your advisers alongside workers’ comp, especially when employees move to a different employer entity.
Keep the policies and cost entries distinct. A workers’ comp certificate does not answer every disability or Paid Family Leave question. Identify the entities employing people after close, then confirm the required coverage and evidence for those facts.
References: New York WCB: disability and Paid Family Leave coverage
the New York acquisition handoff.
A coordination record, not a calculation of your mod. Put the supporting document and actual deadline beside each item.
| Check | Evidence to keep | Who to involve |
|---|---|---|
| NYCIRB reporting | Applicable notice, ERM-14, and receipt | Carrier and authorized filer |
| Employee-coverage entities | Workers’ comp, disability, and PFL reviewed separately | HR, counsel, and broker |
| Ownership facts | Before-and-after chart and continued operations | Buyer and seller counsel |
| Current rating | Worksheet, payroll, classifications, and loss records | Seller and broker |
| Buyer assumption | Estimate status and eventual determination | Carrier, broker, and finance lead |
Good to know
your questions, answered.
Does buying a New York business give me a new experience mod?
Not automatically. The applicable rating plan and transaction facts determine the treatment of experience. Confirm the outcome through the carrier and relevant rating organization rather than assuming the new owner starts fresh.
What if the seller does not have a current worksheet?
Ask the carrier or broker whether the employer is experience-rated, which entities are included, and where the rating records can be obtained. Do not invent a factor to fill the gap; state the budget assumption and what remains unverified.
More to protect. Less to manage.
take a better-supported number into the deal.
Riza helps organize the New York ownership questions, policy records, and cost assumptions alongside your advisers. Start with the business you’re buying and its current program.
A broker will confirm the scope and next steps with you. Agree a secure route before sharing confidential deal records.