What estimated tax payments are and who needs to make them
Estimated tax payments are quarterly payments you send directly to the IRS when you expect to owe more than $1,000 in taxes for the year and your employer is not withholding enough. The IRS requires these payments on specific dates — not whenever you want to send them. If you are self-employed, a freelancer, have investment income, or receive income without withholding, you likely need to make them.
The IRS charges penalties and interest if you miss a payment date or underpay. You do not have to make estimated payments if your total tax liability for the year will be under $1,000, or if you expect a refund because your withholding will cover what you owe.
The four payment dates fall roughly every three months: April 15, June 15, September 15, and January 15 of the following year. The exact date shifts slightly depending on weekends and federal holidays. If you miss a date, you can still send the payment, but penalties begin accruing on the original due date.
Key Takeaways
- Estimated tax payments are due on April 15, June 15, September 15, and January 15, with exact dates varying by year based on weekends and holidays.
- You calculate what you owe using IRS Form 1040-ES, which includes a worksheet to estimate your income, deductions, and tax for the year.
- You can pay online through IRS Direct Pay or the Electronic Federal Tax Payment System (EFTPS), by mail with a voucher, or by phone.
- The IRS charges penalties and interest on late or underpaid amounts, so paying on time matters even if your estimate turns out to be wrong.
- If you underpay significantly, you may owe penalties when you file your tax return, but you can adjust future payments if your income changes.
How to calculate your estimated tax payment using Form 1040-ES
The IRS provides Form 1040-ES to help you figure out how much to pay each quarter. You can download it from IRS.gov. The form includes a worksheet that walks you through estimating your total income for the year, subtracting deductions, and calculating your expected tax liability. Once you have that number, you divide it by four to get your quarterly payment amount.
The worksheet asks for your expected income from all sources — wages, self-employment, rental property, investments, and any other income. You then subtract the standard deduction or itemized deductions you plan to claim. The result is your estimated taxable income. You apply the current tax rates to that income to find your total tax, then subtract any tax credits you expect to claim (like the Earned Income Tax Credit or child tax credits).
If your income is uneven across the year — for example, you earn most of your money in the fall — you can pay different amounts each quarter instead of dividing evenly. This requires using the annualized installment method, which is also explained in Form 1040-ES. Many people find it simpler to pay the same amount each quarter and adjust at tax time if they overpaid or underpaid.
Payment methods: online, by mail, or by phone
IRS Direct Pay is the fastest and most direct method. You go to IRS.gov, enter your payment amount and due date, and authorize a debit from your bank account. There is no fee. The payment posts within one business day. You receive a confirmation number immediately, which you should keep for your records.
EFTPS (Electronic Federal Tax Payment System) is another online option. You enroll once at EFTPS.gov, then schedule payments up to 120 days in advance. EFTPS is useful if you want to set up all four quarterly payments at once. Like Direct Pay, there is no fee and payments post within one business day.
If you prefer to pay by mail, you download Form 1040-ES, which includes a payment voucher. You fill in the voucher with your payment amount, the quarter you are paying for, and your identifying information. You mail the voucher and a check or money order to the IRS address listed in the form instructions. Mail payments take longer to process and should be sent at least one week before the due date to arrive on time.
You can also pay by phone using an automated system or a live representative, though a fee applies. The IRS website lists the phone number for payments. This method is slower than online payment and should be used only if you cannot access Direct Pay or EFTPS.
Due dates for all four quarterly payments
| Quarter | Income Period | Typical Due Date | Actual Date (varies by year) |
|---|---|---|---|
| Q1 | January 1 – March 31 | April 15 | Check IRS.gov for the exact date |
| Q2 | April 1 – May 31 | June 15 | Check IRS.gov for the exact date |
| Q3 | June 1 – August 31 | September 15 | Check IRS.gov for the exact date |
| Q4 | September 1 – December 31 | January 15 (next year) | Check IRS.gov for the exact date |
The due dates shift when they fall on a weekend or federal holiday. For example, if April 15 is a Saturday, the due date moves to Monday, April 17. If it falls on a Sunday, it moves to Monday. If it falls on a federal holiday, it moves to the next business day. The IRS publishes the exact dates each year on IRS.gov.
If you miss a due date, send the payment as soon as you realize it. The IRS will assess penalties and interest from the original due date, but paying late is better than not paying at all. When you file your annual tax return, the IRS will calculate the exact penalty owed based on how late the payment was and how much you underpaid.
What happens if you underpay or overpay
If your actual tax liability for the year turns out to be higher than what you paid in estimated taxes, you owe the difference when you file your return. The IRS also charges underpayment penalties and interest on the shortfall. The penalty rate changes quarterly and is based on the federal short-term interest rate plus 3 percent. The longer you underpay, the more interest accrues.
If you overpay — meaning your estimated payments exceed your actual tax liability — you can claim the overpayment as a refund or apply it to next year's estimated taxes. When you file your return, you choose which option you prefer. Many people who overpay choose to apply the money to the next year's first quarter payment, which reduces the amount they need to send in April.
If your income changes significantly during the year, you can recalculate your estimated payments and adjust the remaining quarters. For example, if you lose a major client in July, you can lower your Q3 and Q4 payments. Use Form 1040-ES again to recalculate based on your new expected income for the year.
Penalties for late or missed payments
The IRS charges two separate penalties for underpayment: a failure-to-pay penalty and interest. The failure-to-pay penalty is typically 0.5 percent of the unpaid tax per month, up to a maximum of 25 percent. Interest is calculated daily and compounds. Together, these can add up quickly if you significantly underpay or miss multiple quarters.
You may also avoid penalties if you can show that your underpayment was due to a casualty, disaster, or other unusual circumstance, or if your income was uneven and you used the annualized installment method. These exceptions are rare and require documentation. Most people who underpay simply owe the penalty along with interest.
The IRS calculates the exact penalty when you file your tax return. You do not have to calculate it yourself. If you believe you have a valid reason for underpaying, you can request penalty relief when you file or contact the IRS after you receive a notice.
Frequently Asked Questions
Do I have to make estimated tax payments if I am self-employed?
Most self-employed people do, unless your expected tax liability is under $1,000 for the year. Self-employment tax (Social Security and Medicare) is not withheld from your income, so estimated payments are usually necessary. Use Form 1040-ES to calculate what you owe, including both income tax and self-employment tax.
What if I cannot afford to pay the full amount by the due date?
Pay what you can by the due date to reduce penalties. The IRS charges penalties only on the unpaid portion. If you cannot pay the full amount, contact the IRS about setting up a payment plan. You can also request a short-term extension, though interest continues to accrue.
Can I change my estimated tax payment after I submit it?
You cannot change a payment you have already made, but you can adjust future quarterly payments. Recalculate your expected income and tax for the rest of the year using Form 1040-ES, then pay a different amount for the next quarter. Any overpayment from earlier quarters will be credited when you file your return.
What if I file my tax return before making my Q4 payment?
You can still make the Q4 payment after filing. The due date for Q4 is January 15 of the following year, which is after most people file their return in April. If you file early, you can wait to make the Q4 payment until January 15, or you can make it before filing if you prefer.
Where do I send my estimated tax payment by mail?
The mailing address depends on your state and whether you are paying by check or money order. Form 1040-ES includes the correct address for your location. Mail payments should be sent at least one week before the due date to ensure they arrive on time. Online payment through Direct Pay or EFTPS is faster and more reliable.