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Third Party Registration

Enter the Federal Employer Identification Number (FEIN) and click the Next button




Account Type
Description User Information Help IconHelp
THIRD PARTY By selecting this Account Type you are registering yourself as a Third Party Company and will access this website to work on behalf of an Employer.

A Third Party is a company or person(s) given authority by the employer to handle specific responsibility on their behalf. The option to register for a Third Party Account means you are not the Employer, rather a company or person(s) such as a bookkeeper, payroll company or health care provider, given authority by an Employer to handle specific responsibility on their behalf. A Third Party Company must register and have their own OESP account before they can be added by an Employer as a User.