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Special Notice Title
Issue Date
Year
Subjects
B&O Tax Deduction for Amounts Received for Providing Child Welfare Services
08/17/2011
2011
Health and Social Welfare Organizations
High Tech B&O Tax Credit Donation
09/15/2011
2011
High Technology
High Technology B&O Tax Credit for Qualified R&D Expenditures and the High Technology Sales and Use Tax Deferral Set to Expire
06/14/2014
2014
High Technology
Sales/use tax exemption on purchases of hog fuel extended
06/13/2023
2023
Hog Fuel
Tax Exemptions for Honey Beekeepers
07/13/2013
2013
Honey Bees
High unemployment county sales and use tax deferral program Eligible counties from July 1, 2018 - June 30, 2020
05/24/2018
2018
Incentives
'Invest in Washington' program
11/30/2017
2017
Incentives
Semiconductor materials manufacturers tax incentives extended - Revised
10/16/2017
2017
Incentives
Tax Exemptions Extended for Certain Purchases by Eligible Data Centers and Their Tenants
07/27/2015
2015
Incentives
Manufacturers of Solar Energy Systems and their Components
10/16/2017
2017
Incentives
Business and Occupation (B&O) Tax Deduction Available for Your Delivery System Reform Incentive Payments (DSRIP)
03/30/2018
2018
Incentives
Sales Tax Exemption for Investment Casting Process
07/23/2015
2015
Investment Casting
How Taxes Apply to Charges for Kiosk and Cart Spaces in Shoping Malls
10/24/2013
2013
Kiosks
Land development and management services
06/23/2020
2020
Land Development
Self-service Laundry Facilities
06/08/2005
2005
Laundry/Laundromat
Excess Leasehold Excise Tax Credit Eliminated
07/01/2013
2013
Leasehold Excise Tax
Leasehold Interest Definition
06/21/2012
2012
Leasehold Excise Tax
Collection of parking and business improvement area special assessments by lodging businesses
07/06/2021
2021
Lodging
Sales and Use Tax Exemption for Qualifying Manufacturing Machinery and Equipment Clarified
06/07/2011
2011
M&E
Semiconductor Materials Manufacturers Filing Requirements Amended for Annual Tax Incentive Survey and Report
08/14/2014
2014
Manufacturing
Notice regarding manufacturers’ retail sales and use tax exemption for purchases of machinery and equipment used in a research and development operation
11/09/2022
2022
Manufacturing
Machinery and Equipment Used in Developing Software
07/27/2015
2015
Manufacturing
Sales and use tax exemption for marijuana retailers with a medical endorsement
05/06/2016
2016
Marijuana
Sales and use tax exemptions for certain low-THC products from health care professionals
05/06/2016
2016
Marijuana
Cooperatives exempt from taxes on marijuana provided to members
05/06/2016
2016
Marijuana
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Home
Open a business
Get started
Apply for a license
Plan for taxes
Manage a business
Run
Grow
Close
Taxes & rates
Sales & use tax rates
Tax incentives
Business & occupation tax
Retail sales tax
Use tax
Property tax
Other taxes
Income tax
File & pay taxes
Filing frequencies & due dates
File or amend my return
Report no business activity
Late filing
Reviews and appeals
Apply for a tax refund
Education
Industry guides
Events & workshops
Watch a video
Audits
Forms & publications
Forms by name
Forms by subject
Publications by name
Publications by subject