This calendar shows the monthly deposit date for payroll taxes. If you have a large payroll, you should make payroll tax deposits according to the semiweekly deposit rule; these dates are not shown on this calendar. If you are not sure when to make payroll tax deposits, read this article on how to determine your payroll tax deposit schedule.
1. March 15 - Deposit Payroll Taxes for February (If You Deposit Monthly)
If your payroll tax liability for the "look back period" (the last 12 months ending June 30) was less than $50,000, you must make payroll tax deposits monthly. If you file monthly, deposit payroll taxes for February by March 15.
2. March 15 - Corporations Must File Form 1120 Corporate Income Tax Return
If your corporation has a calendar year-end, your corporate income tax return is due on March 15. You may also file an automatic extension on Form 7004
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3. March 15 - S Corporation Must File Form 1120S Income Tax Return
If your s corporation has a calendar year-end, your corporate income tax return is due on March 15. You may also file an automatic extension on Form 7004
4. March 15 - Large Partnerships Must Provide Schedule K-1 to Partners
This item relates only to electing large partnerships (those with 100 or more partners).
5. March 31 - File Form 2290, Pay Tax for Heavy Vehicles Purchased in February
If you purchased a heavy vehicle (gross taxable weight 55,000 pounds or more)in February, you must file Form 2290 and pay the annual tax on this vehicle by the end of March.
