January 30, 2018 | Posted in:

Major Tax Deadlines: First Quarter 2018

January 2018 Tax Deadlines

  • January 16 – Due date for the fourth installment of 2017 individual estimated tax.
  • January 31 –
    • Due date for employers to furnish W-2 statements to employees, and to file Forms W-2 with the Social Security Administration (both paper and electronic forms).
    • Due date for payers to provide most Forms 1099-MISC with non-employee compensation in box 7 to recipients and to the IRS.
    • Employers must file 2017 federal unemployment tax returns and pay any tax due.
    • Due date for providers to send Forms 1095 to recipients and the IRS.

February 2018 Tax Deadlines

  • February 28 – Payers must file most other Forms 1099 (except certain Forms 1099-MISC due Jan. 31) with the IRS. (April 2 if filing electronically).

March 2018 Tax Deadlines

  • March 1 – Farmers and fishermen who did not make 2017 estimated tax payments must file 2017 tax returns and pay taxes in full.
  • March 2 – Automatic extension deadline for employers and health care providers to provide Forms 1095-B and 1095-C to individuals.
  • March 15 –
    • 2017 calendar-year S corporation income tax returns are due.
    • 2017 partnership returns are due.
    • Deadline for calendar-year corporations to elect S corporation status for 2018.

April 2018 Tax Deadlines

  • April 17 –
    • Individual income tax returns for 2017 are due.
    • 2017 calendar-year C corporation income tax returns are due.
    • 2017 annual gift tax returns are due.
    • Deadline for making 2017 IRA contributions.
    • First installment of 2018 individual estimated tax is due.


Note: Businesses are required to make federal tax deposits on dates determined by various factors that differ from business to business.


Payroll Tax Deposits

Employers generally must deposit Form 941 payroll taxes (income tax withheld from employees’ pay and both the employer’s and employees’ share of FICA taxes) on either a monthly or semiweekly deposit schedule. There are exceptions if you owe $100,000 or more on any day during a deposit period, if you owe $2,500 or less for the calendar quarter, or if your estimated annual liability is $1,000 or less.


  • Monthly depositors are required to deposit payroll taxes accumulated within a calendar month by the fifteenth of the following month.
  • Semiweekly depositors generally must deposit payroll taxes on Wednesdays or Fridays, depending on when wages are paid.


For more information on tax deadlines that apply to you or your business, contact our office. We are here to help you with your tax preparation needs this tax season.



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