What are my filing requirements?
The Electronic Federal Tax Payment System (EFTPS) is a service provided by the US Department of Treasury. Individuals and Businesses can use this link to enroll and pay most (Federal) tax due to the IRS.
Federal Filing Requirements
Corporation Tax Return (Form 1120) more...
S-Corporate Tax Return (Form 1120S) more...
Partnership Tax Return (Form 1065) more...
Federal Unemployment Tax Return (Form 940)
Annual Return/Report of Employee Benefits Plans (Form 5500/5500EZ)
Employer’s Federal Tax Return (Form 941)
Washington State Filing Requirements
* Please note that Washignton State excise taxes are collected either annually, quarterly or monthly based on determination by the State. Contact the Washington State Department of Revenue for your company's determination.
County & City (or locality) Filing Requirements
Each county and city in Washington State has its own licensing and tax reporting & filing requirements for businesses. To ensure that you are compliant, please check with your local county and city agencies.
Businesses operating in King County come under the jurisdiction of State, County, and, where applicable, City regulations. The location of the business, as well as the nature and scope of the business, determines what types of business licenses are required.
The City of Seattle (and many other cities) requires businesses to file the following:
Business License Renewal - Annual
License Renewal for Contractors - Annual
Business License Tax or Business & Occupation (B&O) Tax - Annual or Quarterly *
* Click here for a list of cities in Washington State with local B&O tax. Also please note that local licensing and taxation requirements are subject to change. Check with your local jurisdiction to determine if this tax is required.