Small Business Taxes & Management

To Do List -- Federal

March 10, 2026

Form 4070, employees who received $20 or more in tip income in February.

March 16, 2026

Employment tax deposits due for monthly depositors.
S Corporation income tax return (Form 1120S) due (calendar-year corporations).
Form 1065, Partnership (calendar year) returns due (including LLC if taxed as partnership)
S Corporations, partnerships file automatic 6-month extension Form 7004 (calendar-year corporations).
C Corporations (calendar year) last day to file Form 2553 to elect S corporation status for years beginning in 2026.
Form 8804, Annual Return for Partnership Withholding Tax under Sec. 1446 (Form 7004 for extension request)
Form 1042-S Foreign Person's U.S. Source Income Subject to Withholding Return
Form 1042 Annual Withholding Tax Return U.S. Source Income of foreign persons
Form 5471 Information Return of U.S. Persons with Respect to Certain Foreign Corporations
Withheld taxes Form 1042-S and 1042 due.

Various

Form 8300 (statement to payer of cash of more than $10,000) must be filed with the IRS by the 15th day following the transaction.

Semi-Weekly Employment Tax Deposit Schedule for March:

Payroll Date Deposit Date

Feb 25-27 Mar 4

Feb 28-Mar 3 Mar 6

Mar 4-6 Mar 11

Mar 7-10 Mar 13

Mar 11-13 Mar 18

Mar 14-17/td> Mar 20

Mar 18-20 Mar 25

Mar 21-24 Mar 27

Mar 25-27 Apr 1

Mar 28-31 Apr 3

Special Rule: Employers must deposit taxes on next banking day after date employment tax liability exceeds $100,000.

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Payroll Date	Deposit Date
Feb 25-27	Mar 4
Feb 28-Mar 3	Mar 6
Mar 4-6	Mar 11
Mar 7-10	Mar 13
Mar 11-13	Mar 18
Mar 14-17/td>	Mar 20
Mar 18-20	Mar 25
Mar 21-24	Mar 27
Mar 25-27	Apr 1
Mar 28-31	Apr 3