NY Tax Filing Deadlines 2025-2026
Important dates for federal and New York State tax filings
Q4 2025 Estimated Tax Due
Fourth quarter estimated tax payment for 2025.
W-2 and 1099 Forms
Employers must send W-2 forms; 1099s due from clients.
2025 Tax Return Due
Federal and NY State income tax returns due. Also Q1 2026 estimated taxes.
Q2 2026 Estimated Tax Due
Second quarter estimated tax payment for 2026.
Q3 2026 Estimated Tax Due
Third quarter estimated tax payment for 2026.
Extended Returns Due
Final deadline for returns with approved extension.
If you can't file by April 15, you can request an automatic 6-month extension. However:
Extension is for filing, not paying
You must still pay estimated taxes by April 15 to avoid penalties and interest.
How to file for an extension
File IRS Form 4868 for federal and IT-370 for NY State before April 15.
If you're self-employed, a freelancer, or have income not subject to withholding, you may need to make quarterly estimated tax payments.
Who needs to pay estimated taxes?
- • Self-employed individuals and freelancers
- • Those with significant investment income
- • Landlords with rental income
- • Anyone who expects to owe $300+ in NY taxes
Dates are calculated based on standard IRS schedules and may be adjusted for weekends or federal holidays. Always verify with official sources.