Q1 estimated taxes due for 2026. Individual, C-corporation, trust & gift tax return (or extension) forms due for 2025.
Last day to make IRA, SEP-IRA, and Keogh contributions for 2025.
SEP-IRA and Keogh contributions can be made up to the extended due date if an extension for filing returns is made.
Register for our live webinar: Trust Administration Essentials: From Estate Settlement to Ongoing Trust Oversight
Calendar-year nonprofit returns due (Form 990 series).
Extended deadline to file S-Corporation and Partnership federal tax returns for the 2025 tax year.
Extended deadline to file federal trust and estate income tax returns (Form 1041) for 2025 tax year.
Remember to complete RMDs before December 31, 2026 deadline.
Extended deadline to file C-Corporation federal tax returns for the 2025 tax year.
Extended Individual & Gift filing deadline.
Open enrollment for Medicare Advantage and Part D plans begins.
Remember to set your clocks back by an hour.
On Friday, the day after Thanksgiving, the market closes early at 1PM Eastern.
Last chance to sign up for Medicare Advantage and Part D plans.
Last chance to apply for coverage of healthcare through ACA beginning January 1, 2027 (subject to federal/state rules).
The day before Christmas Day, the market closes early at 1PM Eastern.
1) Last day to make 401(k) contributions for the current year.
2) Last day to establish a Keogh plan.
3) Last day to make charitable contributions.
4) RMDs must be taken for individuals aged 73 or older with an RMD obligation for 2026.