Accountants, bookkeepers, and payroll companies
This filing application allows accountants, bookkeepers and payroll companies and others to file on behalf of other businesses.
Please follow the instructins below if you are setting up a list of clients for the first time. If you have an established list and need additional information please refer to the FAQs below.
If you need assistance signing in to the Claim & Account Center 
, please contact Web Customer Support at WebSupport@Lni.wa.gov or call 360‑902‑5999 weekdays 8 a.m. to 5 p.m. PST.
First time filer instructions
If you file Quarterly Reports for multiple businesses, you are known as a Third Party Representative. This gives you the ability to create a list of clients in the Claim & Account Center. This will allow you to access all of your clients with a single logon ID and password.
To begin, please complete and submit the Confidential Tax Information Authorization form (PDF 300KB) with one of your clients account number and Participant Activation Code (PAC). Submitting the form is the first step to getting set up for the accountant role in Claim & Account Center . Fax this form to 360‑902‑4729 and include a cover page indicating you have not yet established a list. If you do not have access to a fax machine, the form may be scanned and emailed to ESTechSupport@Lni.wa.gov. You'll be contacted by a representative who'll help you sign in to My Secure L&I, the Claim & Account Center and explain how your list of clients works.
Instructions to Set Up Roles (250 KB PDF).
FAQs for accountants, bookkeepers, and payroll companies
How do I set up a client list?
If you have not yet established a list of clients, please refer to the first time filer instructions on this page.
- How do I add accounts to my list?
Once your list has been created, you can add new accounts with the Account ID and PAC at the top of the Employer Accounts screen or by completing and submitting an Confidential Tax Information Authorization form (PDF 300KB).
- Why can't I add this new client?
If a client is currently being represented by another Third Party Representative or the account needs attention, the Claim & Account Center will not allow you to add the account to your list. Completing and submitting an Confidential Tax Information Authorization form (PDF 300KB) will correct these issues and the account will appear on your list automatically.
- Some of my clients disappeared from my list. What happened and how can I get them back?
There're a number of factors that can affect your list of clients. If you feel an account is missing, please contact us at ESTechSupport@Lni.wa.gov. Be sure to include your UBI and the missing account's information.
- What do I do if I can't log in or have forgotten my password?
If you have forgotten a password or logon ID or are having difficulty signing in to the Claim & Account Center, please contact Web Customer Support at WebSupport@Lni.wa.gov or call 360‑902‑5999 weekdays 8 a.m. to 5 p.m. PST.
- I recently changed my UBI. What happens to my list of clients?
The filer's UBI is used to show a relationship between the filer's business and the client's business. If your UBI changes, we will need to update your list of clients for you then set up for access to the Claim & Account Center again. If you change your UBI, please send an email to ESTechSupport@Lni.wa.gov with your old and new UBIs to let us know.
- Why can't I add my own account to my client list?
The Claim & Account Center will not allow Third Party Representatives to add their own business to their client list. This is because there is no third party involved. No authorization is needed to file for your own business, but L&I can add your account to your list for you. Simply contact us at ESTechSupport@Lni.wa.gov and let us know what action is needed.
