2019 Tax Deadlines For Seattle Startups

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• JAN 31: Send 1099’s to Contractors. Send W2’s to Employees. 1099-MISC for non-employee compensation must also be e-filed to IRS on this date.
• JAN 31: Send 1095-B and 1095-C forms to Employees.
• JAN 31: Claim R&D Tax Credits on Form 941 , and file annual FUTA return on Form 940.
• JAN 31: Seattle 2018 Business License Tax deadline for Annual Filers and (up to 0.423% of gross revenue in 2017, 0.427% in 2018).
• JAN 31: Seattle Q4 2018 Business License Tax for Quarterly Filers.
• JAN 31: Washington Annual 2018 or Q4 2018 (for Quarterly Filers) Excise Tax Return (Business & Occupation Tax, Sales Tax, & Use Tax).
• JAN 31: Washington Q4 2018 State Fund Quarterly Report (Payroll Tax).
• FEB 28: IRS ACA Compliance 1094-B, 1095-B, 1094-C and 1095-C filings are due by this deadline (if paper-filing, due APR 1 if eFiling).
• MAR 1: Delaware Annual Franchise Report filing due: Pay a min. of $400, +more if you have significant funding.
• MAR 1: IRS 30 day automatic extension: provide Form 1095-B and 1095-C form’s to Employees.
• APR 1: IRS ACA Compliance 1094-B, 1095-B, 1094-C and 1095-C filings are due (eFile).
• APR 1: 1099’s and W2’s must be e-filed with the IRS by this due date.
• APR 15: C-Corp Form 1120 Tax Return due. Can extend the deadline to Oct 15.
• APR 15: File the R&D Tax Credit Form 6765 with your tax return. Can extend to Oct 15.
• APR 30: Seattle Q1 2019 Business License Tax for Quarterly Filers.
• APR 30: Washington Q1 2019 Excise Tax Return due date/deadline.
• APR 30: Washington Q1 2019 State Fund Quarterly Report (Payroll Tax) due.
• APR 30: Washington Personal Property Tax Listing Form and 50% of property taxes are due on this tax deadline.
• APR 30: Claim R&D Tax Credits on Form 941.
• JUN 3: Delaware Quarterly Estimated Franchise Tax, Pay 40% of estimated annual amount (if annual amount expected to exceed $5,000).
• JUL 31: Seattle Q2 2019 Business License Tax for Quarterly Filers
• JUL 31: Washington Q2 2019 Excise Tax Return due.
• JUL 31: Washington Q2 2019 State Fund Quarterly Report (Payroll Tax) due.
• JUL 31: Claim R&D Tax Credits on Form 941.
• SEP 2: Delaware Quarterly Estimated Franchise Tax, Pay 20% of estimated annual amount (if annual amount expected to exceed $5,000).
• OCT 15: C-Corp Form 1120 Tax Return final deadline and due date if extension was filed.
• OCT 31: Seattle Q3 2019 Business License Tax for Quarterly Filers
• OCT 31: Washington Q3 2019 Excise Tax Return due.
• OCT 31: Washington Q3 2019 State Fund Quarterly Report (Payroll Tax) due.
• OCT 31: Remaining 50% of Washington Personal Property Tax due.
• OCT 31: Claim your R&D Tax Credits on Form 941.
• DEC 2: Delaware Quarterly Estimated Franchise Tax, Pay 20% of estimated annual amount (if annual amount expected to exceed $5,000).
• ROLLING: Renew your business license annually.

If your Delaware C-Corp Seattle funded startup needs tax help contact us today!

• 2018 Tax Compliance Deadlines For Seattle Startups

  2018 tax deadlines are supplied for reference purposes only, and should not be used when making decisions in 2019. Always consult your tax professional, and see our disclaimer below.

  • JAN 31: Send 1099’s to Contractors. Send W2’s to Employees. 1099-MISC for nonemployee compensation must also be e-filed to IRS on this date.
  • JAN 31: Send 1095-B and 1095-C forms to Employees.
  • JAN 31: Claim R&D Tax Credits on Form 941, and file annual FUTA return on Form 940.
  • JAN 31: Seattle 2017 Business License Tax for Annual Filers and (up to 0.423% of gross revenue in 2017, 0.427% in 2018).
  • JAN 31: Seattle Q4 2017 Business License Tax deadline for Quarterly Filers.
  • JAN 31: Washington Annual 2017 or Q4 2017 (for Quarterly Filers) Excise Tax Return (Business & Occupation Tax, Sales Tax, & Use Tax).
  • JAN 31: Washington Q4 2017 State Fund Quarterly Report (Payroll Tax)
  • FEB 28: IRS ACA Compliance 1094-B, 1095-B, 1095-C and 1095-C filings are due (if paper-filing, due APR 2 if eFiling).
  • MAR 1: Delaware Annual Franchise Report filing due: Pay a min. of $400, +more if you have significant funding.
  • APR 2: IRS ACA Compliance 1094-B, 1095-B, 1095-C and 1095-C filings deadline (efiling).
  • APR 2: 1099’s and W2’s must be e-filed with the IRS by this due date.
  • APR 17: C-Corp Form 1120 Tax Return due. Can extend to October 15.
  • APR 17: File the R&D Tax Credit Form 6765 with your tax return. Can extend to October 15.
  • APR 30: Seattle Q1 2018 Business License Tax for Quarterly Filers.
  • APR 30: Washington Q1 2018 Excise Tax Return due.
  • APR 30: Washington Q1 2018 State Fund Quarterly Report (Payroll Tax)
  • APR 30: Washington Personal Property Tax Listing Form and 50% of property taxes are due.
  • APR 30: Claim your R& Tax Credits on Form 941.
  • JUN 1: Delaware Quarterly Estimated Franchise Tax, Pay 40% of estimated annual amount (if annual amount expected to exceed $5,000)
  • JUL 31: Seattle Q2 2018 Business License Tax for Quarterly Filers.
  • JUL 31: Washington Q2 2018 Excise Tax Return due.
  • JUL 31: Washington Q2 2018 State Fund Quarterly Report (Payroll Tax)
  • JUL 31: Claim your R&D Tax Credits on Form 941.
  • SEPT 1: Delaware Quarterly Estimated Franchise Tax, Pay 20% of estimated annual amount (if annual amount expected to exceed $5,000)
  • OCT 15: C-Corp Form 1120 Tax Return final due date if extension was filed.
  • OCT 31: Seattle Q3 2018 Business License Tax for Quarterly Filers.
  • OCT 31: Washington Q3 2018 Excise Tax Return due.
  • OCT 31: Washington Q3 2018 State Fund Quarterly Report (Payroll Tax)
  • OCT 31: Remaining 50% of Washington Personal Property Tax due.
  • OCT 31: Claim your R&D Tax Credits on Form 941.
  • DEC 1: Delaware Quarterly Estimated Franchise Tax, Pay 20% of estimated annual amount (if annual amount expected to exceed $5,000)
  • ROLLING: Renew your business license annually.