You don’t file Form 1040-ES with the IRS in the way you file a tax return. Form 1040-ES is a worksheet plus four payment vouchers, and the IRS only wants to see a voucher if you’re mailing a paper check. Pay electronically and the form stays on your desk: the IRS cares about receiving the right dollar amount by each quarterly deadline, not about receiving paperwork.
When the Voucher Actually Gets Mailed
There is one scenario where a piece of Form 1040-ES leaves your house. If you’re paying by check or money order, you tear off the voucher for the current quarter, fill in the payment amount, and mail it with your payment made payable to “United States Treasury.” On the check itself, write your name, address, phone number, Social Security number, the tax year, and “Form 1040-ES.”1Internal Revenue Service. Pay by Check or Money Order
The mailing address depends on which state you live in, so check the 1040-ES instructions for the correct IRS lockbox before you send anything. Never mail a voucher without a payment attached. The voucher is a transmittal slip; its whole job is to tell the IRS who you are and which quarter the money belongs to.
Skip the Form: Pay Electronically Instead
If you pay electronically, you don’t touch the 1040-ES voucher at all. You still use the worksheet inside the form’s instructions to figure out how much to pay, but the payment itself goes straight to the IRS through one of these channels.2Internal Revenue Service. Payments
IRS Individual Online Account
The Online Account is the most full-featured option. You can pay estimated taxes, view your balance and payment history, and schedule future payments. Setup requires identity verification through ID.me. The IRS is steering individual taxpayers toward this portal going forward.
IRS Direct Pay
Direct Pay pulls funds directly from your checking or savings account at no cost. There’s no account to create, which makes it convenient for one-off payments. You can schedule a payment up to 365 days in advance, so you can line up all four quarterly payments at the start of the year if you want to.3Internal Revenue Service. About Direct Pay Help
EFTPS
The Electronic Federal Tax Payment System stopped accepting new individual enrollments on October 17, 2025. Existing enrollees can still use it for now, but individual taxpayers will need to move to the Online Account or Direct Pay later in 2026.4U.S. Department of the Treasury. Electronic Federal Tax Payment System Don’t treat EFTPS as a long-term plan.
Credit or Debit Card
The IRS authorizes several third-party processors to accept card payments. Processing fees for credit cards generally run between 2.49% and 2.95% of the payment amount, with minimum fees of roughly $2.59 to $3.95 depending on the processor. On a $5,000 quarterly payment, that’s $125 to $148 in fees. Bank-account transfers through Direct Pay or the Online Account are free.
Who Has to Pay in the First Place
The IRS expects estimated payments from anyone who will owe $1,000 or more when they file, after subtracting withholding and refundable credits.5Internal Revenue Service. Estimated Taxes That catches most self-employed workers, freelancers, landlords, retirees living on investment income, and anyone else whose income doesn’t run through payroll withholding. If your day-job withholding is large enough to cover your total liability, you’re fine even if you have side income on top.
One clean exception: if you had zero tax liability on last year’s return, were a U.S. citizen or resident for the full year, and that return covered a full 12-month tax year, you owe no estimated payments this year.6Internal Revenue Service. IRS FAQ – Penalty Questions This only helps people who genuinely owed nothing, not people who got a refund because their withholding was high.
2026 Quarterly Deadlines
Estimated tax is paid in four installments. For 2026, the deadlines are:7Internal Revenue Service. Estimated Tax
- April 15, 2026, for income earned January 1 through March 31
- June 15, 2026, for income earned April 1 through May 31
- September 15, 2026, for income earned June 1 through August 31
- January 15, 2027, for income earned September 1 through December 31
The periods aren’t equal. The second “quarter” covers only two months and the third covers three, which trips up taxpayers who assume each installment tracks a clean three-month block. If a deadline lands on a weekend or legal holiday, the payment counts as timely if it arrives the next business day. None of the 2026 dates are affected by that rule.
Getting the Amount Right
The 1040-ES instructions include a worksheet that walks you through projecting your annual tax: estimate adjusted gross income, subtract deductions, apply credits, subtract any expected withholding, and divide what remains by four.8Internal Revenue Service. Form 1040-ES – Estimated Tax for Individuals Perfection isn’t the goal. The safe harbor rules give you room to miss.
You avoid an underpayment penalty entirely by meeting either of these thresholds:
- Pay at least 90% of the tax you end up owing for 2026 through withholding and estimated payments combined.
- Pay at least 100% of the total tax shown on your 2025 return.
The prior-year rule is what most self-employed taxpayers rely on, because it doesn’t require predicting anything. You already know last year’s total tax; divide by four and send that in each quarter. If your adjusted gross income exceeded $150,000 last year ($75,000 if married filing separately), the prior-year threshold rises to 110% instead of 100%.9Office of the Law Revision Counsel. 26 USC 6654 – Failure by Individual to Pay Estimated Income Tax
You also avoid the penalty if you owe less than $1,000 when you file.10Internal Revenue Service. Topic No. 306, Penalty for Underpayment of Estimated Tax For people with mixed W-2 and freelance income, raising W-2 withholding through a revised W-4 is sometimes enough to slip under that line.
When you do owe a penalty, the IRS generally calculates it for you. You only file Form 2210 yourself if you’re requesting a waiver for a casualty or unusual circumstance, or if you used the annualized income installment method and need to justify uneven payments.11Internal Revenue Service. Instructions for Form 2210 – Underpayment of Estimated Tax by Individuals, Estates, and Trusts The underpayment penalty itself is an interest-style charge on the shortfall for each quarter it remained unpaid, at the federal short-term rate plus three percentage points. For the first half of 2026, that rate dropped from 7% to 6%.12Internal Revenue Service. Quarterly Interest Rates
Adjusting Payments During the Year
Your first estimate doesn’t lock you in. If income jumps or drops, rerun the worksheet with updated numbers and change your next payment.5Internal Revenue Service. Estimated Taxes No form gets filed, and no permission is required. You simply pay more or less on the next installment.
State Estimated Payments Are Separate
Everything above is federal. Most states with an income tax also require quarterly estimated payments, with trigger amounts ranging from roughly $300 to $1,000 depending on the state and deadlines that usually but not always mirror the federal calendar. Paying the IRS does nothing for your state balance. Check your state’s department of revenue for its own rules and payment channels.