Important Dates

Important Tax Dates

Below is a listing of important tax dates. Please note these are based on a calendar year. If your company uses a fiscal year, your dates will be slightly different.

Tax deadlines never fall on weekends or legal holidays. If a deadline date falls on a holiday or weekend, taxes will typically be due the next business day, however you should confirm with the IRS. Contact our team at Casey Peterson, Ltd. for more information.


2019 Tax Dates

January 15, 2019 – 4th Quarter 2018 Estimated Tax Payment Due
If you are required to pay estimated tax, your quarterly estimated tax from October, November, and December 2018 is due.

March 1, 2019 – Farmers 2018 Federal Tax Return Due
If you are in the business of farming or ranching, your 2018 farm tax return is due.

March 15, 2019 – Partnerships and S Corporations 2018 Federal Tax Return Due
Both partnerships and S corporations are required to file their taxes by this date.

April 15, 2019 – 1st Quarter 2019 Estimated Tax Payment Due
If you are required to pay estimated tax, your quarterly estimated tax from January, February, and March is due.

April 15, 2019 – Individuals, Calendar Year Estates, Trusts, and C Corporations 2018 Federal Tax Return Due

April 30, 2019 – 1st Quarter Payroll Reports 1/1 to 3/31 due by 4/30

May 15, 2019 – Exempt Organizations 2018 Federal Tax Return Due
In general, most exempt organizations are required to file a return annually.

June 17, 2019 – 2nd Quarter 2018 Estimated Tax Payment Due
If you are required to pay estimated tax, your quarterly estimated tax from April, May, and June is due.

July 31, 2019 – 2nd Quarter Payroll Reports 4/1 to 6/30 due by 7/31

September 16, 2019 – 3rd Quarter 2018 Estimated Tax Payment Due
If you are required to pay estimated tax, your quarterly estimated tax from July, August, and September is due.

September 16, 2019 – Partnerships and S Corporations Extended 2018 Federal Tax Return Due
If you filed for an extension, your six months are up and your federal income taxes are due.

September 30, 2019 – Trust and Calendar Year Estates Extended 2018 Federal Tax Return Due
If you filed a 5 1/2-month extension on your Estates and Trusts return, it is now due.

October 15, 2019 – Individuals and C Corporations Extended 2018 Federal Tax Return Due
If you filed for an extension, your six months are up and your federal income taxes are due.

October 31, 2019 – 3rd Quarter Payroll Reports 7/1 to 9/30 due by 10/31

January 15, 2020 – 4th Quarter 2019 Estimated Tax Payment Due
If you are required to pay estimated tax, your quarterly estimated tax from October, November, and December 2019 is due.

January 31, 2020 – 4th Quarter Payroll Reports 10/1 to 12/31 due by 1/31/20


Full IRS Tax Calendar

2019 Tax Calendar
For a full listing of important dates for employers, individuals, and others, view IRS Publication 509.

IRS Tax Calendar for Businesses and Self-Employed
The IRS provides a tax calendar online and as a download for businesses and self-employed with push notifications of important dates.



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