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Find your Washington tax account info

Tax account numbers

You can find your Washington account numbers on the Quarterly Tax and Wage Detail Reports (form 5208 A).

SUI rate

The Washington SUI Tax Rate appears on the notice that you receive from the Washington Employment Security Department each year. The rate generally range from 0.10%–7.70%, with a wage base of $47,300 in 2018. If you're unsure about your rate, please call the agency at (855) 829-9243. 

Washington Labor and Industries (L&I) authorization

If you are coming to Gusto from another payroll provider, you must transfer 3rd party authorization to Gusto by filling out the authorization form attached at the end of this article.

Ensure the form has an effective date of your first quarter with Gusto and then email or fax the form to WA L&I. Without 3rd party authorization, we will be unable to file your tax return to WA L&I. 

This agency is separate from WA Employment Security. You can find your account number by logging into your WA L&I account here.