September 2026
Important Dates & Deadlines
Sept
11
Deadline for employees who earned more than $20 in tip income in August to report this income to their employers
Taxes
Sept
15
Deadline for third-quarter estimated tax payments for the tax year
Final deadline to file partnership returns and corporate tax returns for the previous tax year, if an extension was requested
Monthly FICA and NYS-1 Due Today
Taxes
Payroll
Sept
21
Sales tax return due for monthly and quarterly filers
Taxes
Sept
3o
Fiduciary returns due for calendar year taxpayers who requested an automatic 5 and 1/2 month extension to file
Taxes
October 2026
Important Dates & Deadlines
Oct
10
Deadline for employees who earned more than $20 in tip income in September to report this income to their employers
Taxes
Oct
15
Medicare Open Enrollment begins today through Dec 7th
Extended deadline for Individual & C Corporation returns Due for the previous year
Deadline for taxpayers who earned $69,000 or less in adjusted gross income (AGI) for the previous tax year to use Free File to prepare and file their returns
Monthly FICA and NYS-1 Due Today
Medicare
Taxes
Payroll
Oct
20
Sales tax return due for monthly filers
Taxes
Oct
31
Employer’s quarterly combined withholding, wage reporting and unemployment insurance return due
Payroll
January 2026
Jan. 10:
Deadline for employees who earned more than $20 in tip income in December to report this income to their employers on Form 4070
Jan 12:
Drop Off Hours Start Today!
Monday and Tuesday: 4-6pm
Thursday & Saturday 10 am – Noon
Jan. 15:
- Deadline to pay the fourth-quarter estimated tax payment for the previous tax year
- Monthly FICA and NYS-1 Due Today
Jan. 20:
Sales tax return due for monthly filers
Jan. 26:
- IRS begins accepting tax returns today
Jan 31:
- Employer’s quarterly MCTMT return due
- Employer’s quarterly combined withholding, wage reporting and unemployment insurance return due
- Deadline for employers to mail out W-2 Forms to their employees
February 2026
Feb. 1:
- Deadline for businesses to furnish 1099 Forms reporting non-employee compensation, bank interest, dividends, and distributions from a retirement plan
- Deadline for financial institutions to mail out Form 1099-B relating to sales of stock, bonds, or mutual funds through a brokerage account, Form 1099-S relating to real estate transactions; and Form 1099-MISC, if the sender is reporting payments in boxes 8 or 14
- Deadline for catching up on unpaid fourth-quarter estimated taxes without additional penalties by filing previous year tax returns
Feb. 12: Deadline for employees who earned more than $20 in tip income in January to report this income to their employers
Feb. 15: Monthly FICA and NYS-1 Due Today
Feb. 20: Sales tax return due for monthly filers
Feb. 28:
- Employers must have filed Form 1095-C by today
- Final deadline to file 1099s with NYS (if not already filed in January)
March 2026
March 1: Deadline for businesses to mail Forms 1099 and 1096 to the IRS
March 2: Deadline for farmers and fishermen to file individual income tax returns
March 11: Deadline for employees who earned more than $20 in tip income in February to report this income to their employers
March 15:
- Monthly FICA and NYS-1 Due Today
- Deadline for corporate tax returns (Forms 1120, 1120-A, and 1120-S) for the previous tax year, or to request an automatic six-month extension of time to file (Form 7004) for corporations that use the calendar year as their tax year
- Deadline for filing partnership tax returns (Form 1065) or to request an automatic five-month extension of time to file (Form 7004)
- Partnership, limited liability company, and limited liability partnership filing fee due for calendar year filers
March 20:
- Sales tax return due for quarterly filers
- March 20: Sales tax return due for monthly filers
- March 20: Sales tax return due for annual filers
March 31: Deadline for businesses to e-file Forms 1099 and 1096 to the IRS, except Form 1099-NEC
April 2026
April 10: Deadline for employees who earned more than $20 in tip income in March to report this income to their employers
April 15:
- Deadline to file individual tax returns (Form 1040) and fiduciary returns for the previous tax year or to request an automatic extension (Form 4868) for an extra six months to file your return, and for payment of any tax due
- C Corporation returns due (CT-3)
- Deadline for household employers who paid $2,200 or more in wages for the previous tax year to file Schedule H for Form 1040
- Deadline for first-quarter estimated tax payments for the previous tax year
- Monthly FICA and NYS-1 Due Today
April 21: Sales tax return due for monthly filers
Jan. 10:
Deadline for employees who earned more than $20 in tip income in December to report this income to their employers on Form 4070
Jan 12:
Drop Off Hours Start Today!
Monday and Tuesday: 4-6pm
Thursday & Saturday 10 am – Noon
Jan. 15:
- Deadline to pay the fourth-quarter estimated tax payment for the previous tax year
- Monthly FICA and NYS-1 Due Today
Jan. 20:
Sales tax return due for monthly filers
Jan. 26:
- IRS begins accepting tax returns today
Jan 31:
- Employer’s quarterly MCTMT return due
- Employer’s quarterly combined withholding, wage reporting and unemployment insurance return due
- Deadline for employers to mail out W-2 Forms to their employees
May 2026
May 2:
- Employer’s quarterly MCTMT return due
- Employer’s quarterly combined withholding, wage reporting and unemployment insurance return due
May 10: Deadline for employees who earned more than $20 in tip income in April to report this income to their employers
May 15: Monthly FICA and NYS-1 Due Today
May 20: Sales tax return due for monthly filers
June 2026
June 10: Deadline for employees who earned more than $20 in tip income in May to report this income to their employers
June 15:
- Deadline for second-quarter estimated tax payments for this tax year
- Deadline for U.S. citizens living abroad to file individual tax returns or file Form 4868 for an automatic four-month extension
- Monthly FICA and NYS-1 Due Today
June 22:
- Sales tax return due for quarterly filers
- Sales tax return due for monthly filers
July 2026
July 10:
Deadline for employees who earned more than $20 in tip income in June to report this income to their employers
July 15:
Monthly FICA and NYS-1 Due Today
July 20:
Sales tax return due for monthly filers
July 31
• NYS-45 Quarterly Payroll Filing (Q2)
August 2026
August 1:
- Employer’s quarterly MCTMT return due
- Employer’s quarterly combined withholding, wage reporting and unemployment insurance return due
August 12:
Deadline for employees who earned more than $20 in tip income in July to report this income to their employers
August 15:
Monthly FICA and NYS-1 Due Today
August 20:
Sales tax return due for monthly filers
September 2026
Sept
11
Deadline for employees who earned more than $20 in tip income in August to report this income to their employers
Taxes
Sept
15
Deadline for third-quarter estimated tax payments for the tax year
Final deadline to file partnership returns and corporate tax returns for the previous tax year, if an extension was requested
Monthly FICA and NYS-1 Due Today
Taxes
Payroll
Sept
21
Sales tax return due for monthly and quarterly filers
Taxes
Sept
3o
Fiduciary returns due for calendar year taxpayers who requested an automatic 5 and 1/2 month extension to file
Taxes
October 2026
Oct
10
Deadline for employees who earned more than $20 in tip income in September to report this income to their employers
Taxes
Oct
15
Medicare Open Enrollment begins today through Dec 7th
Extended deadline for Individual & C Corporation returns Due for the previous year
Deadline for taxpayers who earned $69,000 or less in adjusted gross income (AGI) for the previous tax year to use Free File to prepare and file their returns
Monthly FICA and NYS-1 Due Today
Medicare
Taxes
Payroll
Oct
20
Sales tax return due for monthly filers
Taxes
Oct
31
Employer’s quarterly combined withholding, wage reporting and unemployment insurance return due
Payroll
November 2026
Nov
12
Deadline for employees who earned more than $20 in tip income in October to report this income to their employers
Taxes
Nov
15
Monthly FICA and NYS-1 Due Today
Payroll
Nov
20
Sales tax return due for monthly filers
Taxes
December 2026
Dec
7
Medicare Open Enrollment Ends Today
Medicare
Dec
10
Deadline for employees who earned more than $20 in tip income in November to report this income to their employers
Taxes
Dec
16
Corporation tax (New York C corporation and New York S corporation) estimated tax payments due for calendar year filers
Monthly FICA and NYS-1 Due Today
Taxes
Payroll
Dec
21
Sales tax return due for quarterly and monthly filers
Taxes
Questions about a deadline?
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