Tax season doesn’t have to sneak up on you. We’ve put together all the important tax dates for 2026 in an easy-to-reference format—and made it simple to add them to your calendar.

Personal Tax Deadlines

Date	What’s Due	Description	Add to Calendar
January 15	Q4 2025 Estimated Tax Payment	Fourth quarter estimated tax payment for 2025 for self-employed individuals or those with other income without tax withholding.	• Add to Google Calendar • Add to iCal/Outlook
April 15	Individual Tax Return (Form 1040)	Your 2025 tax return is due. Extension available to October 15, but payment still due today.	• Add to Google Calendar • Add to iCal/Outlook
April 15	Q1 2026 Estimated Tax Payment	First quarter estimated tax payments due for 2026.	• Add to Google Calendar • Add to iCal/Outlook
June 15	Q2 2026 Estimated Tax Payment	Second quarter estimated tax payments due for 2026.	•Add to Google Calendar • Add to iCal/Outlook
September 15	Q3 2026 Estimated Tax Payment	Third quarter estimated tax payments due for 2026.	• Add to Google Calendar • Add to iCal/Outlook
October 15	Extended Individual Tax Return	If you filed an extension in April, your 2025 return is due today.	• Add to Google Calendar • Add to iCal/Outlook

Business Tax Deadlines

Date	What’s Due	Description	Add to Calendar
January 15	Q4 2025 Estimated Business Tax Payment	Fourth quarter estimated tax payment for 2025 for self-employed individuals or those with other income without tax withholding.	• Add to Google Calendar • Add to iCal/Outlook
January 31	W-2 and 1099 Forms Due to Recipients	Employers must send W-2 tax forms and 1099s no later than this date.	• Add to Google Calendar • Add to iCal/Outlook
March 16	S-Corp & Partnership Returns (Forms 1120-S & 1065)	2025 business tax returns due date for calendar year business filers. If your business uses a fiscal year instead, your tax due date is the 15th day of the third month after the close of your tax year. Deadline to request a tax extension for partnerships, S corps, and LLCs taxed as partnerships.	• Add to Google Calendar • Add to iCal/Outlook
April 15	C-Corp Return (Form 1120)	Taxes due for C corporations, sole proprietors, single-member LLCs, and LLCs taxed as corporations. If your business uses a fiscal tax year, you must file your business tax return by the 15th day of the third month after the end of your tax year. Deadline to request a tax extension for C corps, sole proprietors, single-member LLCs, and LLCs taxed as corporations.	• Add to Google Calendar • Add to iCal/Outlook
April 15	Q1 2026 Estimated Business Tax Payment	First quarter estimated tax payments due for 2026.	• Add to Google Calendar • Add to iCal/Outlook
June 15	Q2 2026 Estimated Business Tax Payment	Second quarter estimated tax payments due for 2026.	• Add to Google Calendar • Add to iCal/Outlook
September 15	Extended S-Corp/Partnership Returns	If you filed an extension in March, your return is due today.	• Add to Google Calendar • Add to iCal/Outlook
October 15	Extended C-Corp Returns	If you filed an extension in April, your C-Corp return is due today.	• Add to Google Calendar • Add to iCal/Outlook
December 31	Last Day for 2026 Tax Moves	Last day for charitable contributions, business purchases, retirement contributions, etc.	• Add to Google Calendar • Add to iCal/Outlook

Download All Reminders at Once

Want to add all the deadlines to your calendar in one click? Download the complete calendar file for:

• Personal Tax Deadlines 2026 — All 6 personal tax reminders
• Business Tax Deadlines 2026 — All 10 business tax reminders

Once downloaded, simply open the file to import all events into Google Calendar, Apple Calendar, Outlook, or any calendar app that supports .ics files.

Good to Know

Extensions are for filing, not paying. If you need more time to file, request an extension—but you still need to pay any taxes owed by the original deadline to avoid penalties.

Estimated payments matter. If you’re self-employed or own a business and don’t have taxes withheld from a paycheck, you’ll need to make quarterly estimated payments. Missing them can result in underpayment penalties.

State deadlines may vary. Most states follow federal deadlines, but not all. Check your state’s requirements.

Weekend/holiday adjustments. When a deadline falls on a weekend or holiday, it’s typically moved to the next business day.

Need Help Staying on Top of Tax Deadlines?

At The Hell Yeah Group, we help creative businesses and small teams stay organized, compliant, and stress-free when it comes to taxes. Whether you need bookkeeping, CFO services, or tax prep and planning, we’ve got you.

Learn more about Hell Yeah Taxes or email us at taxes@thehellyeahgroup.com to see how we can support you.

Disclaimer: This post is for informational purposes only and does not constitute tax advice. Consult with a qualified tax professional for advice specific to your situation.