Filing Estimated Taxes With the IRS—Form 1040-ES

Paying Taxes When Self-Employed

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You don't have an employer withholding and sending taxes to the IRS or to your state if you're self-employed in a home business or work as an independent contractor or freelancer. It's possible that you're required to pay estimated tax in this case.

You must pay estimated tax for the current tax year if both of the following apply:

  • You expect to owe at least $1,000 in tax for the current tax year after subtracting any withholding and refundable credits.
  • Your withholding and credits are expected to be less than the smaller of: 90% of the tax you expect to owe, or 100% of your total tax liability shown on the prior year's return.

According to the IRS website, sole proprietors, partners, and S corporation shareholders usually have to make estimated tax payments if they expect to owe tax of $1,000 or more when they file their federal tax returns. Shareholders with C corporations must pay estimated taxes if they expect to owe $500 or more when the return is filed.

You do not have to pay estimated tax for the current tax year if you meet all three of the following conditions:

  1. You were not required to pay taxes in the previous tax year.
  2. You were a U.S. citizen or resident for all of the previous tax year.
  3. Your previous tax year covered an entire 12-month period.

When Estimated Taxes Are Due

Estimated tax payments are due four times per year, usually according to this schedule (or the next business day if the due date falls on a legal holiday or weekend):

  1. April 15 for earnings from Jan. 1 through March 31
  2. June 15 for earnings from April 1 through May 31
  3. September 15 for earnings from June 1 through August 31
  4. January 15 for earnings from Sept. 1 through December 31

Estimated taxes are similar to the taxes an employer withdraws from a paycheck. You might owe taxes when you file your return in April if enough money isn't withheld from your pay during the year to cover your tax liability. If you pay too much, you'll receive a refund.

You could be charged a penalty even if you're due a refund when you file your income tax return if you don't pay enough tax by the due date of each of the payment periods. You have the option to pay your entire estimated tax liability for the year by the filing and payment deadline, which is usually April 15.

The Internal Revenue Service extended the filing deadline for 2021 to June 15 for taxpayers in Texas, Louisiana, and Oklahoma, which were declared federal disaster areas due to the severe winter storms. This also applies to businesses and estimated tax payments for first-quarter earnings.

The deadline has been extended to May 17, 2021 for all other individual taxpayers in response to the ongoing coronavirus pandemic, but this doesn't affect estimated payments. They're still due by April 15.

You don't have to make the payment due on January 15 if you file Form 1040 by February 1 (or by the next business day if February 1 falls on a weekend or holiday), and you pay any remaining taxes due at that time. This is nearly impossible for most self-employed taxpayers, because 1099 forms often arrive late.

You payment due dates would be as follows if you're a fiscal-year taxpayer and don't follow the standard calendar year:

  1. The 15th day of the fourth month of your fiscal year
  2. The 15th day of the sixth month of your fiscal year
  3. The 15th day of the ninth month of your fiscal year
  4. The 15th day of the first month after the end of your fiscal year

Like calendar-year taxpayers, you don't have to make the last payment if you file your income tax return by the last day of the first month after the end of your fiscal year, and you pay all the tax you owe with your return.

Calculating Your Estimated Tax Payment

Calculate your anticipated adjusted gross income, deductions, taxable income, other taxes, and credits for that year to determine your estimated tax. It can be easiest to work off your prior year's federal tax return as your starting point if you've filed self-employment taxes before.

Tax software programs will help you calculate your estimated tax liability. Additionally, the IRS provides instructions and a worksheet for calculating your estimated tax payments, which are filed with IRS Form 1040-ES. 

Keep the worksheet for your records, and keep records of the dates on which you make your estimated tax payments throughout the year. This information is critical for completing next year's return, and you'll need it for calculating any interest or penalties resulting from underestimating your tax liability.

How to Pay Your Estimated Taxes

The IRS offers five ways to pay your estimated taxes:

  1. Use IRS Direct Pay for free online transfers from your checking or savings account.
  2. Send in your payment (by check or money order) with the corresponding payment voucher from Form 1040-ES.
  3. Pay electronically using the Electronic Federal Tax Payment System (EFTPS). You need to apply for this service in order to use it, and you can set up one-time or recurring payments up to a year in advance. Enroll online at You also can modify or cancel payments as late as two days before they're paid.
  4. Pay by electronic funds withdrawal. You can set this up when you electronically file Form 1040 or Form 1040A, at which time you can arrange to withdraw funds electronically for up to four estimated tax payments that follow. Tax software and tax preparers can set this up for you.
  5. Pay by credit or debit card using a pay-by-phone system or the internet through one of only three IRS-authorized card processors. You'll be charged a processing fee. The amount will be provided to you at the time of payment.

Additional Taxes for the Self-Employed

In addition to income tax, those who are self-employed are required to submit estimated tax payments for their self-employment tax. The current self-employment tax rate is 15.3%, consisting of 12.4% for Social Security and 2.9% for Medicare. This tax is essentially the same as the Social Security and Medicare taxes withheld by most employers, except that employers are required to pay half the tax. Those who are self-employed must pay both halves. The Social Security portion is subject to maximum income limitations ($137,700 for 2020 and $142,800 for 2021).