When Your Quarterly Tax Payments Are Due to the IRS

The Four Quarterly Payment Dates Each Year

Quarterly tax payments are due on April 15, June 15, September 15, and January 15 of the following year. These dates apply to self-employed people, business owners, and anyone else whose tax withholding from a job does not cover what they owe. The IRS calls these estimated tax payments, and they are due even if you have not yet filed your annual tax return.

The dates are fixed by the IRS and do not change. If a due date falls on a weekend or federal holiday, you can pay the next business day without penalty. For example, if June 15 is a Saturday, your payment is due Monday, June 17. The IRS website lists the exact dates each year in their tax calendar.

Missing a quarterly payment date does not automatically trigger a penalty, but the longer you wait, the more interest accrues on what you owe. The IRS charges interest daily on unpaid taxes, and if you are consistently late, they may add an underpayment penalty when you file your annual return.

Key Takeaways

• Quarterly payments are due April 15, June 15, September 15, and January 15 — four fixed dates every year.
• You owe quarterly payments if your job does not withhold enough tax or if you are self-employed and expect to owe more than $1,000 at tax time.
• Paying late triggers daily interest charges and may result in an underpayment penalty when you file your annual return.
• You can pay online through IRS.gov, by mail, by phone, or through an authorized payment processor — the method does not change the due date.
• If your income changes during the year, you can adjust your quarterly payment amount; you do not have to pay the same amount all four times.

Who Has to Make Quarterly Payments

You owe quarterly payments if you expect to owe the IRS more than $1,000 when you file your annual return and your withholding (from a job, pension, or other source) will not cover it. Self-employed people, freelancers, business owners, and investors often fall into this category. If you have a regular job with a W-4 on file, your employer withholds tax from each paycheck, which usually covers your liability — so you would not owe quarterly payments unless you have side income or investment gains.

The IRS does not send you a bill for quarterly payments. You are responsible for calculating what you owe and paying it on time. Many people use their prior year's tax return to estimate this year's payment, or they work with a tax preparer or accountant to set the amount.

How to Calculate Your Quarterly Payment Amount

The simplest method is to take your total tax liability from last year's return, divide it by four, and pay that amount each quarter. This works if your income is stable. If you expect to earn significantly more or less this year, you can adjust the calculation based on your current income and deductions.

The IRS Form 1040-ES walks through the calculation step by step and includes a worksheet. You do not have to use it — you can calculate on your own — but it is free and available on IRS.gov. If your income varies month to month, some people pay more in quarters when they earn more and less in quarters when they earn less. The total of all four payments does not have to be equal.

If you underpay during the year but make up the difference when you file your annual return, you may still owe a small underpayment penalty. The penalty is calculated based on how much you were short each quarter and how long you were short. Overpaying one quarter does not erase an underpayment in another.

Payment Methods and Deadlines

You can pay online through IRS.gov Direct Pay (no fee), by credit or debit card through an authorized payment processor (a fee applies), by phone, or by mail. Online payment is the fastest and most reliable method — the IRS confirms receipt immediately, and you receive a confirmation number.

If you pay by mail, send a check or money order with a payment voucher (Form 1040-ES) to the address listed in the form instructions. Mail takes time to arrive and be processed, so the IRS considers the payment date to be the postmark date on the envelope, not the date they receive it. If you mail a payment and the postmark is before the due date, you are on time even if the IRS does not process it until after the deadline.

If you pay by phone or through a payment processor, the payment is due by 11:59 p.m. Eastern Time on the due date. Online Direct Pay typically processes same-day or next-day, depending on when you submit it.

What Happens If You Miss a Quarterly Due Date

If you miss a quarterly payment date, the IRS charges interest on the unpaid amount starting the day after the due date. The interest rate changes quarterly and is set by the IRS — it is currently several percentage points above the federal short-term rate. Interest compounds daily, so the longer you wait, the more you owe.

In addition to interest, you may owe an underpayment penalty when you file your annual return. The penalty is calculated separately for each quarter you underpaid. If you were short by $500 in the first quarter and paid it back in the second quarter, you still owe a penalty for the first quarter's shortfall. The penalty is small — usually a few dollars — but it adds up if you miss multiple quarters.

If you cannot pay by the due date, you can still file Form 1040-ES and pay what you can. The IRS will not pursue collection action immediately, but interest and penalties will continue to accrue. If you expect to owe a large amount, contact the IRS before the due date to discuss a payment plan.

Adjusting Your Quarterly Payments During the Year

Your income may change during the year — a business might have a slow quarter, you might lose a client, or you might land a large contract. You can adjust your quarterly payment amount based on your current situation. You do not have to pay the same amount all four times.

If you realize in July that you will earn less than you expected, you can pay a smaller amount for the third and fourth quarters. If you earn more, you can increase the later payments. The goal is to avoid a large bill when you file your annual return and to avoid overpaying and waiting for a refund.

Some people recalculate after each quarter based on actual income to date. Others estimate once at the start of the year and stick with it. Either approach is acceptable — the IRS only cares that your total payments plus withholding cover what you ultimately owe.

Frequently Asked Questions

What if I miss a quarterly payment and then pay it late?

You will owe interest from the original due date, not from the date you pay. If you owed $1,000 on April 15 and paid it on May 15, interest accrues for the entire month of May. You may also owe an underpayment penalty. The sooner you pay, the less interest you accumulate.

Do I have to make quarterly payments if I am retired?

Only if you have income that is not subject to withholding — for example, investment gains, rental income, or self-employment income. If your only income is Social Security or a pension with withholding, you do not owe quarterly payments.

Can I pay all four quarters at once instead of four separate times?

Yes. You can pay the full year's estimated tax in one lump sum, but it must be paid by the first quarter due date (April 15) to avoid interest and penalties on the later quarters. If you pay all four quarters on April 15, you are on time for all of them.

What if I overpay my quarterly taxes?

The overpayment will be credited toward your annual tax liability when you file your return. You can also request a refund of the overpayment, though most people let it sit as a credit to reduce their final bill or increase their refund.

Do I need to file a form to make quarterly payments?

No. You simply pay the amount you owe by the due date. Form 1040-ES is a worksheet to help you calculate the payment, but you do not submit it to the IRS — you keep it for your records. The payment itself is what matters.