Tax Due Dates

• 1/31/18 - 4th Quarter 2017 quarterly payroll tax returns

• 1/31/18 - 2017 annual payroll tax forms (Form 940, W-2, W-3, etc)

• 3/15/18 - S Corporation tax returns (1120S)

• 3/15/18 - Partnership tax returns (1065)

• 4/17/18 - Individual tax returns (1040)

• 4/17/18 - C Corporation tax returns (1120)

• 4/17/18 - IRA contribution for 2017 is due

• 4/17/18 - 1st quarter 2018 estimated tax payment

• 4/30/18 - 1st Quarter 2018 quarterly payroll tax returns

• 6/15/18 - 2nd quarter 2018 estimated tax payment

• 7/31/18 - 2nd Quarter 2018 quarterly payroll tax returns

• 9/17/18 - 3rd quarter 2018 estimated tax payment

• 9/17/18 - S Corporation (1120) and Partnership (1065) tax returns that were put on extension
   
• 10/15/18 - C Coproration (1120) and Individual tax returns (1040) that were put on extension

• 10/31/18 - 3rd Quarter 2018 quarterly payroll tax returns 

• 1/15/19 - 4th quarter 2018 estimated tax payment