April 15, 2025

Tax day (unless extended due to local state holiday). The tax deadline typically falls on April 15 each year, but can be delayed if it falls on a weekend or holiday. Missing the tax deadline can have consequences like penalties and interest.

Deadline to File Form 4868 and request an extension. The tax day deadline is also the last day to file Form 4868 requesting an extension to file your individual income tax return. If you won’t be ready to file your tax return by tax day, make sure you instead complete an extension request, granting you the ability to delay filing a completed return until October 15, 2025. But remember, even if you choose to file an extension, you are still required to pay any taxes you may owe by the April deadline.

Deadline to make IRA and HSA contributions for 2024 tax year. For individual income tax return filers, this also marks the final day to make contributions to your IRA or HSA for the 2024 tax year. After this date, you generally can’t make contributions for the previous tax year.

First quarter 2025 estimated tax payment due. Making estimated tax payments means that you need to estimate how much income you’re likely to make for the year and determine how much you will owe to the IRS for income taxes. You can use IRS Form 1040-ES to calculate how much tax liability you'll have for the year. IRS Publication 505 contains all the rules and details you might need to know about how to calculate this amount. If you overestimated how much tax liability you’d owe for a year and are due a refund, you can choose to receive that money now or apply the overage to the following year’s quarterly tax payments.