Tax Calendar 2025:
All the Deadlines You Need to Know
Our tax calendar is your go-to list of important 2025 tax deadlines for business owners, self-employed professionals, real estate investors, and high-income earners.
Use it to plan ahead, avoid penalties, and stay compliant.
2025 Key Federal Tax Deadlines
January 15, 2025
Q4 2024 Estimated Tax Payment Due
If you’re self-employed or receive income not subject to withholding (e.g., 1099s, rental, crypto, etc.), this is your final estimated payment for the 2024 tax year.
January 31, 2025
Form 1099-NEC and W-2 Deadline (to recipients)
If you paid contractors or employees in 2024, you must issue their 1099-NEC or W-2 forms by this date.
March 15, 2025
S-Corp and Partnership Tax Returns Due (Forms 1120-S and 1065)
If you operate as an S-Corp or multi-member LLC/partnership, this is your filing deadline—unless you file an extension.
April 15, 2025
Individual Tax Returns Due (Form 1040)
Also the deadline for calendar-year C-Corps. File and pay any tax due to avoid penalties and interest.
April 15, 2025
Q1 2025 Estimated Tax Payment Due
For self-employed individuals, investors, or anyone who owes taxes throughout the year.
June 17, 2025
Q2 2025 Estimated Tax Payment Due
September 16, 2025
Q3 2025 Estimated Tax Payment Due
October 15, 2025
Extended Deadline for 1040, 1120-S, and 1065 Filers
If you filed for a 6-month extension in the spring, this is your final deadline to file your return.
Uncle Kam Pro Tips
Our system isn’t based on hope—it’s based on law. Every plan is reviewed, compliant, and built to give you the confidence of knowing your taxes are done right.
Pay Early, Not Just On Time
Paying estimated taxes early—or splitting them monthly—can smooth cash flow and reduce stress.
Extensions Don’t Delay Payment
Filing an extension gives you more time to submit paperwork—not more time to pay what you owe. If you think you’ll owe, pay by April 15 to avoid penalties.
Don’t Just Chase Deadlines.
Build Around Them.
These dates won’t change—but your strategy can. Whether you need help with quarterly planning, year-end optimization, or multi-entity coordination, we’ve got you covered.
Book a Strategy Call and Meet Your Match.
Professional, Licensed, and Vetted MERNA™-Certified Strategist Who Will Save You Money.
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Professional, licensed, and vetted tax advisors who will save you money.