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When Are 2021 Taxes Due?

What’s the deadline to pay your taxes?

If you’re sending your return in via snail mail, the IRS considers your return “on time” if it’s addressed correctly, has enough postage, and is in the mail before the end of business on your filing deadline.

Otherwise, you can e-file your return before midnight on your tax filing deadline day.

If you’re self-employed, your business probably pays taxes in four sums throughout the year, rather than on one day. These are called estimated tax payments. The due date for these 2021 payments are April 15, June 15, September 15, and January 15 (2022).

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When are 2021 tax extensions due?

You have right up until tax day to file for an extension. For individuals, that means you can still file for a tax extension right on April 15. The same goes for businesses: S corps and partnerships can still get an extension on March 15, and the last day for C corps to file for an extension is April 15.

2021 Tax Deadlines

Here is a detailed list of every tax deadline in 2021.

January 15, 2021

Estimated quarterly payments

Say a final goodbye to 2020. The fourth (and final) estimated quarterly tax payment for the previous tax year is due today.

Note: Individuals, you do not have to file this payment due on January 15, 2021—so long as you file your 2020 tax return by January 31, 2021 and pay the remaining balance owed with your return (see Form 1040-ES for details).

Forms:

February 1, 2021

Form W-2 filing deadline

If you have employees, you’ll need to fill out two copies of Form W-2 for each one.

One W-2 must be submitted to the IRS. The other must be sent to the employee. The deadline for both is February 1, 2021.

Forms:

Form 1099-NEC Copy A filing deadline

If you work with independent contractors, the new 1099-NEC form is due February 1, 2021.

Copy A must be filed with the IRS by this date. Copy B must be furnished to the contractor on this date, as well.

Forms:

March 1, 2021

Form 1099-MISC paper filing deadline

Some 1099s will require a 1099-MISC form.

This due date will only be for paper filing. If you file electronically or miss the paper filing deadline, you can file on March 31, 2021.

You must deliver Copy A to the IRS, and Copy B to your recipient.

Forms:

March 15, 2021

S corporation and partnership tax returns due

Today is the deadline to file your S corporation tax return (Form 1120-S) or Partnership return (Form 1065).

Note that S corporations and Partnerships do not pay taxes on their income. That tax is paid on the individual incomes of the shareholders or partners, respectively.

March 15 is also the deadline to file for an extension for S corp and partnership tax returns.

Forms:

March 31, 2021

Form 1099-MISC Copy A filing deadline

Some 1099s will require a 1099-MISC form. This includes payments to an individual or LLC of at least $600 during the year in rent paid, legal settlements, or prize or award winnings.

This due date will only be for electronic filing.

You must deliver Copy A to the IRS, and Copy B to your recipient.

Forms:

April 15, 2021

Estimated quarterly tax payments

So it begins. If your business pays taxes on a quarterly basis, the first 2021 estimated quarterly tax payment is due today.

Forms:

C corporation tax returns due

Today is the deadline to file C corporation tax returns (Form 1120). C corporations in Texas, Oklahoma, and Louisiana have until June 15 to submit their tax returns.

April 15 is also the deadline to file for an extension to file your corporate tax return.

Forms: