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Bulk filing in EAMS

Bulk filing (formerly referred to as ICESA Washington Reporting) is for employers or their agents who prepare quarterly reports for a large number of clients and submit them in a single file. Bulk filing is recommended for employers who report more than 5,000 wage records.

Benefits of bulk filing with EAMS

  • Bulk file upload (ICESA): Upload a test or production file and receive instant validation results and confirmation.
  • Amend quarterly reports: Amend a previously filed quarterly report online.
  • Pay taxes online: Either for a single account or a combined payment for multiple accounts.
  • Check tax rates: For a single account or for all the accounts you manage, if you file for multiple accounts.

How to bulk file with EAMS



  • You must correct all errors before submitting successfully.
  • The system will calculate tax totals (T Records). You may accept our calculations or correct your file prior to submitting.
  • You may be subject to penalties if you don't file correctly.
  • If you use the new technical specifications in our current version of EAMS, you might receive warning messages. If you have a question about the warning messages, please contact UIFTsupport@esd.wa.gov.

Making bulk filing payments


Pay online using EAMS

To make a combined payment for multiple accounts, you must first have successfully uploaded a file using bulk-file upload and received a confirmation number.


Pay by mailing a check

The paper remittance listing(s), labeled "ICESA WASHINGTON REPORTING," will list the ESD number, amount remitted, check number, federal ID number, Unified Business Identifier (UBI) and business name, in that order.

Remittance listings will have a maximum of 50 accounts per page and each page will include a total for that page.

  • Include information for one account (ESD number) per line.
  • Submit a separate check for each account with the ESD number for that payment listed in the memo field. The amount of the check must equal the total payment due and amount remitted fields listed in the T Record. (See bulk filing format specifications for details.)
  • Put the checks in the same order as the remittance-listing page. Failure to comply may result in a check being returned, or penalties or interest being charged.
  • Mail each remittance-listing page, with the corresponding checks to:
    • Employment Security Department
      PO Box 35114
      Seattle, WA 98124-5114

Contact us

Tax account or options for filing and paying

Tax center contact information webpage
855-829-9243, option 2 

Technical questions about filing in ICESA format or submittal process

Employer taxes webpage