Tax filing season follows a broadly predictable annual rhythm, but the IRS sets the exact filing-season opening date and announces it closer to the season itself, which means specific calendar dates should always be confirmed directly on IRS.gov rather than assumed from a prior year's schedule.

When the IRS typically opens filing

The IRS generally opens electronic filing for the prior tax year sometime in late January, with the exact date announced by the agency a few weeks ahead of that opening. Check IRS.gov directly once that announcement is made for this specific filing season's exact opening date rather than relying on a generic "late January" estimate when you're ready to file.

The standard filing deadline

The federal individual tax filing deadline generally falls on April 15, shifted to the next business day if that date falls on a weekend or a recognized holiday. Residents of certain states or areas affected by a federally declared disaster sometimes receive an extended deadline specific to that situation; check IRS.gov's disaster relief announcements if that applies to you.

Extension deadlines

Filing an extension (Form 4868) generally pushes your filing deadline to mid-October, but it's crucial to understand an extension extends the time to file your paperwork, not the time to pay any tax owed; an estimated payment is still generally due by the standard April deadline to avoid interest and penalties, even with an approved filing extension.

Key documents to watch for

Employers and financial institutions are generally required to send W-2 and most 1099 forms by the end of January, which is why trying to file before receiving all expected tax documents often leads to needing an amended return later. Give your documents a few extra business days of buffer into early February before assuming a missing form means a problem, since mailing timelines vary.

Estimated quarterly payments, if they apply to you

If you're self-employed or otherwise required to make quarterly estimated tax payments, those deadlines fall on a separate quarterly schedule throughout the year, not tied to the annual April filing deadline. Check IRS.gov's specific estimated tax payment schedule if this applies to your situation.

Bottom line

The broad shape of tax season (documents arriving in January, filing opening in late January, the deadline in mid-April) repeats annually, but the exact dates are set and announced by the IRS each year. Confirm this year's specific dates directly on IRS.gov rather than assuming last year's calendar repeats exactly.