City of Tumwater, WA
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Tumwater Business & Occupation Tax
Tumwater B&O Rate: .001 or .1%
Special Services B&O Rate:.002 or .2%
The City of Tumwater collects and administers a Business & Occupation tax as authorized by Tumwater Municipal Code (TMC) Chapter 5.08
The tax applies to the gross revenues of businesses at the rate of one-tenth of one percent, except those engaged in certain types of service industries (see TMC 5.08.030§(Q)) which shall pay at the rate of two-tenths of one percent. If the gross proceeds of sales or gross income of the business from all activities is less than $5,000 per quarter or $20,00 per year, no tax is due.
All businesses conducting business in Tumwater are required to file a quarterly or annual return, even if there has been no activity or no tax is due.
Tumwater Municipal Code 5.08 - B & O Tax
Tumwater Municipal Code 5.10 - B & O Tax Administrative Rules
Electronic Delivery
You can elect to sign up for electronic delivery of online filing information when you file your return online.
Online Filing
Online filing requires your license # and an activity # provided by the B&O/Licensing Department.
Online Filing Payment Options
Credit cards and ACH payments are available online up to $3,000. Any returned ACH payment is subject to a $30 fee.
B&O Tax Important Dates
1st Quarter – January 1st through March 31st – Due April 30th
2nd Quarter – April 1st through June 30th – Due July 31st
3rd Quarter – July 1st through September 30th – Due October 31st
4th Quarter – October 1st through December 31st – Due January 31st
Annual – January 1st through December 31st – Due April 30th
If you need an extension for your B&O taxes or would like to setup a payment plan please email us.
Forms
Service Income Apportionment Worksheet
Tumwater B&O Quarterly Form (print and mail with payment to the address listed below)
Tumwater B&O Annual Form (print and mail with payment to the address listed below)
B&O Tax Refund/Amended Return Policy
All requests for amended returns, credits and refunds must be made in writing accompanying amended return pursuant to TMC 5.10.100. Refunds may not be processed through our online system at this time.
Contact us
Our B&O Tax Division is available to answer any questions you may have. You may contact a specialist by email or by calling (360) 754-4136.

