March 31, 2026

What Still Matters After the Deadline Passes

The IRS gave you a deadline, but your retirement savings doesn't have to die when it passes.


The free version of this post made the case that tax season does not end on April 15. This one gives you the complete calendar. Every deadline, every form, every correction window that affects your retirement accounts from May through the following January. If you manage your own accounts or advise people who do, this is the reference you keep open year-round.


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Frequently Asked Questions

What retirement deadlines should I be tracking after April 15th?

The article provides a month-by-month breakdown of every retirement account deadline, form, and correction window from May through January. Instead of thinking tax season ends on April 15, you need to follow a complete calendar of deadlines throughout the year that affect retirement accounts, including contribution deadlines, correction windows, and required forms.

Can I still fix retirement account mistakes after the tax deadline?

Yes. The article covers correction windows that exist after April 15, meaning you have opportunities to fix mistakes with your retirement accounts beyond the traditional tax filing deadline. These correction periods vary throughout the year, so it's important to know when they close for each type of mistake.

Who should use this retirement deadline calendar?

This resource is designed for people who manage their own retirement accounts or advisors who help clients with retirement planning. It serves as a year-round reference guide to ensure you don't miss any critical deadlines or correction opportunities for retirement accounts.

Why is this calendar important if I already file my taxes by April 15th?

Filing your taxes by April 15 is just one part of the year. Retirement accounts have their own separate deadlines for contributions, distributions, corrections, and other actions that occur throughout the calendar year, many of which fall after the tax deadline and require specific attention.

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The Real End of Tax Season Isn't April 15