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Submit Your Monthly Remittance Reports and Contributions

Employer Self Service (ESS) is the required system for submitting monthly remittance reports and contributions. Employers use ESS to complete their monthly reporting requirements, submit contributions, and manage their employer account.

Log in to ESS | Request ESS Access

Complete Your Monthly Remittance

Each month, employers complete the following steps in Employer Self Service (ESS):

Step 1: Upload Your Remittance File

Upload your monthly remittance file through ESS. Employers using Secure File Transfer Protocol (SFTP) may continue to transmit files through their established SFTP connection. To request SFTP connectivity, please email 401(k)Contributions@iambfo.org.

Step 2: Review and Submit Your Remittance Report

Review your uploaded data, verify employee contribution information, and submit your monthly remittance report.

Step 3: Submit Your Contribution Payment

After your remittance report has been submitted, complete your monthly contribution payment using one of the methods below:

  1. Submit funds through ESS via the secure online payment feature in partnership with Truist
  2. Initiate a wire or ACH direct from your bank

If submitting payment outside of ESS, a submittal form is available for printing at the time of file submission in ESS.

First Time Users

If you do not have an ESS account, please request access and select "ESS System Inquiry" from the topics drop down menu and include the following information:

  • Employer and Location Code(s)
  • Name
  • Job Title
  • E-mail Address
  • Phone Number

Once your request is processed, you'll receive your login credentials by email.

Training and Resources


ESS Registration Tutorial

ESS Remittance Report Upload Tutorial

Questions?

You can contact the IAM National 401(k) Fund Office directly to get more information about the plan.

  • Phone: 800-424-9608 (participants); 202-785-2658 (others). Our phones are open Monday through Friday, 9:00 a.m. to 7:00 p.m. Eastern Time.
  • Fax: 202-463-8098 or 202-457-8653
  • Mail: IAM National 401(k) Fund, 99 M Street, SE, Suite 600, Washington, DC 20003-4595
  • E-mail Form: Click Here
  • John Hancock: If you have questions about your 401(k) plan or need assistance regarding your retirement account, please visit John Hancock's website by clicking here or call 833-388-6466. Phone lines are open Monday through Friday from 8:00 AM to 8:00 PM Eastern Time.