Estimated tax payments are due four times a year if you owe federal income tax and don't have an employer withholding it

If you're self-employed, a freelancer, a gig worker, or earn income without withholding, the IRS expects you to send in tax payments four times yearly instead of once at tax time. These are called estimated tax payments, and they're due on specific dates set by the IRS. Missing a payment date can result in penalties and interest, even if you end up overpaying when you file your annual return.

The four payment dates fall roughly every three months and are tied to the calendar quarter you earned the income in. You don't need to file a separate form each time — you send the payment directly to the IRS using one of their payment methods. The amount you pay is based on your best guess of what you'll owe for the full year, though you can adjust it if your income changes.

Key Takeaways

  • Estimated tax payments are due on April 15, June 15, September 15, and January 15 of the following year, though the exact date shifts if it falls on a weekend or holiday.
  • You owe estimated taxes if you expect to owe $1,000 or more in federal income tax after accounting for withholding and tax credits.
  • The IRS provides a worksheet (Form 1040-ES) to calculate what you should pay each quarter based on your projected annual income.
  • You can pay online through IRS Direct Pay, by mail with a voucher, or through an authorized payment processor, and you should keep a record of your payment confirmation.
  • If your income drops or you overpay, you can adjust future payments or claim the overpayment as a credit when you file your annual tax return.

The four payment dates and what happens if they fall on a weekend

The standard due dates are April 15, June 15, September 15, and January 15. If any of these dates falls on a Saturday, Sunday, or federal holiday, the deadline moves to the next business day. For example, if April 15 is a Saturday, your payment is due on Monday, April 17. The IRS publishes the exact dates each year on their website and in the instructions for Form 1040-ES.

The January 15 payment is technically for the previous tax year (the fourth quarter of that year), so it's often filed alongside or just before your annual tax return in April. Some people combine their January payment with their annual return filing to simplify record-keeping, though they are separate obligations.

Who has to make estimated tax payments

You're required to make estimated payments if you expect to owe $1,000 or more in federal income tax for the year after subtracting any withholding and tax credits. This threshold applies to most self-employed people, but the exact rule depends on your filing status and whether you have a spouse.

Common situations that trigger estimated payments include self-employment income, rental property income, investment income (dividends, capital gains, interest), retirement distributions that don't have withholding, and income from a side business or gig work. If you have a W-2 job and also freelance, you may owe estimated taxes on the freelance portion even if your W-2 employer is withholding from your regular paycheck.

You don't owe estimated taxes if your income is low enough that you won't owe anything after credits, or if you expect to owe less than $1,000. If you're unsure, the safest approach is to calculate it using Form 1040-ES or speak with a tax professional.

How to calculate what to pay each quarter

The IRS provides Form 1040-ES, which includes a worksheet to estimate your annual income and calculate your quarterly payment. The basic steps are: estimate your total income for the year, subtract deductions and credits, calculate your expected tax liability, divide by four, and pay that amount each quarter.

If your income is steady, you can often pay the same amount each quarter. If your income is uneven — for example, you earn more in summer than winter — you can pay different amounts each quarter to match when you actually earn the money. Some people pay more in high-income quarters and less in low-income quarters to avoid overpaying.

If you're unsure of your income, it's better to overestimate and get a refund later than to underestimate and owe penalties. The IRS charges interest on underpayment, calculated from the due date of each missed or short payment, so even a small shortfall can add up if you wait until tax time to settle it.

Payment methods and where to send your money

You have several options for sending estimated tax payments to the IRS. IRS Direct Pay is free and allows you to pay directly from your bank account through the IRS website. Electronic Federal Tax Payment System (EFTPS) is another free option that requires advance registration. You can also pay by credit or debit card through an authorized payment processor, though they charge a processing fee (usually 1.87% to 2.35% of the payment).

If you prefer to mail a check, you'll need to include a payment voucher. The IRS provides a blank voucher with Form 1040-ES instructions, or you can download one from their website. Write your Social Security number, tax year, and the quarter on the check, and mail it to the address listed in the Form 1040-ES instructions (the address varies by state).

Keep a record of your payment confirmation — either a receipt from online payment, a cancelled check, or a confirmation number from EFTPS. You'll need this if the IRS ever questions whether you paid on time.

What happens if you miss a payment date

If you miss a payment date, the IRS charges a penalty for underpayment of estimated tax. The penalty is calculated based on how much you underpaid and how long you were late. Even if you end up overpaying for the year and get a refund when you file your return, you may still owe a penalty for the missed or short payment.

The penalty is separate from the tax you owe. For example, if you were supposed to pay $500 in June and didn't, you'll owe the $500 plus interest and a penalty, even if you pay $2,000 in September to catch up. The IRS calculates the penalty using a rate that changes quarterly.

If you have a legitimate reason for missing a payment — such as a serious illness or casualty loss — you may be able to request a waiver of the penalty. This requires filing Form 2210 with your annual tax return and explaining the reason. Not all reasons may have access to, but it's worth exploring if you have documentation of a genuine hardship.

Adjusting your payments if your income changes

If your income drops or rises significantly during the year, you don't have to stick with your original quarterly amount. You can recalculate your estimated tax based on your actual income to date and adjust future payments. This is especially useful if you had a strong first half of the year but expect a slow second half, or vice versa.

To adjust, recalculate using Form 1040-ES with your updated income projection and pay the new amount for the remaining quarters. There's no penalty for adjusting, and you won't owe interest on the difference as long as you pay the correct amount for the remaining quarters on time. If you overpaid in earlier quarters, you can claim the overpayment as a credit against your final tax bill when you file your annual return, or request a refund.

Frequently Asked Questions

What if I don't know my income for the year yet?

Use your best estimate based on last year's income or your current rate of earnings. You can always adjust in later quarters if your income changes. Overestimating is safer than underestimating, because underpayment carries penalties and interest.

Can I pay all four quarters at once instead of spreading them out?

Yes, but you still need to pay by the first quarter's due date (April 15) to avoid penalties on the later quarters. The IRS doesn't give you credit for paying early; each quarter's payment is due on its specific date. Paying early doesn't reduce your penalty if you underpay a later quarter.

Do I still file a tax return if I make estimated payments?

Yes. Estimated payments are not a substitute for filing your annual tax return. You must file Form 1040 (or the appropriate return for your situation) by April 15 of the following year, report all your income, and reconcile your estimated payments against your actual tax liability.

What if I overpay my estimated taxes?

You'll receive a refund when you file your annual return, or you can choose to apply the overpayment to next year's estimated taxes. There's no penalty for overpaying, and you won't owe interest on the excess.

Do I owe estimated taxes if I have a W-2 job and also freelance?

Only on the freelance income if it will result in owing $1,000 or more in additional tax. You can also adjust your W-2 withholding to cover the freelance income instead of making separate estimated payments, by filing a new Form W-4 with your employer.