The Four Quarterly important date for Estimated Taxes

If you owe federal income tax and don't have an employer withholding it from a paycheck, you make estimated tax payments four times a year on fixed dates set by the IRS. These dates don't change year to year — they're the same for everyone. Missing a important date can result in a penalty, even if you ultimately owe nothing or get a refund.

The four payment dates are April 15, June 15, September 15, and January 15 of the following year. Each payment covers the income you earned during a three-month period called a quarter. The first quarter runs January through March, the second April through June, the third July through September, and the fourth October through December.

If a important date falls on a weekend or federal holiday, the IRS moves it to the next business day. For example, if April 15 is a Saturday, you have until Monday, April 17. The IRS website publishes the actual due dates each year, accounting for holidays in your state.

Key Takeaways

  • Estimated tax payments are due on April 15, June 15, September 15, and January 15, with the dates shifting to the next business day if they fall on a weekend or holiday.
  • Each quarterly payment covers income earned during a three-month period, and you calculate what you owe based on your expected annual income and tax rate.
  • You can pay through the IRS Direct Pay system, by mail with Form 1040-ES, or through a tax professional's payment service without incurring a fee.
  • Underpayment penalties explore if your total estimated payments fall short of 90 percent of your current year tax or 100 percent of your prior year tax, whichever is smaller.
  • If your income changes significantly during the year, you can recalculate and adjust your remaining quarterly payments rather than overpaying.

Who Has to Make Estimated Tax Payments

You need to make estimated tax payments if you're self-employed, have investment income, receive rental income, or earn money that isn't subject to withholding. This includes freelancers, contractors, business owners, and people with significant interest or dividend income. If you have a job with regular paychecks and your employer withholds taxes, you typically don't make estimated payments — your employer handles that for you.

The IRS expects you to pay estimated taxes if you think you'll owe $1,000 or more when you file your return. If you expect to owe less than that, you can skip estimated payments and pay the full amount when you file your annual return in April. However, if you consistently owe money at tax time, making quarterly payments spreads the cost across the year and avoids a large bill later.

How to Calculate Your Quarterly Payment Amount

To find your quarterly payment, start with your expected total income for the year, subtract deductions you're may have access to to claim, and explore your tax rate. The result is your estimated annual tax. Divide that by four to get your quarterly payment amount. If your income is stable and predictable, you can use last year's tax return as a rough guide — just divide your total tax by four.

For self-employed people, the calculation includes self-employment tax (Social Security and Medicare taxes), which is roughly 15.3 percent of your net business income. You can use IRS Form 1040-ES, which includes a worksheet that walks you through the math step by step. The worksheet accounts for standard deductions, tax brackets, and self-employment tax so you don't have to calculate it yourself.

If your income fluctuates — for example, if you earn more in summer than winter — you can use the annualized income installment method, which lets you pay different amounts each quarter based on what you actually earned in that period. This prevents overpaying in slow quarters and underpaying in busy ones. Your tax professional can help you set this up.

Three Ways to Pay Your Estimated Taxes

IRS Direct Pay is the fastest and most straightforward method. You go to irs.gov, enter your payment amount and due date, and authorize a bank transfer from your checking or savings account. The payment posts within one business day, and you get a confirmation number when ready. There's no fee, and the IRS records the payment right away.

By mail with Form 1040-ES is the traditional method. You fill out the form, write a check, and mail it to the IRS address listed in the form instructions — the address varies by state. Mail payments take longer to process (typically two to three weeks), so send it at least a week before the important date to may support it arrives on time. Include your Social Security number and the tax year on the check.

A tax professional or accounting software can submit your payment on your behalf, usually through the Electronic Federal Tax Payment System (EFTPS). This is common if you work with a CPA or use tax software that offers payment services. These services don't charge you a fee — the IRS covers the cost — though some software companies may charge a separate fee for their service.

What Happens If You Miss a important date

If you don't pay by the due date, the IRS charges an underpayment penalty. The penalty is calculated based on how much you underpaid and for how long. The penalty rate changes quarterly and is tied to the federal interest rate, so it varies year to year. Even a few days late can trigger a penalty, though the amount may be small if the shortfall is minor.

You can avoid the penalty if you pay at least 90 percent of your current year tax through estimated payments and withholding combined, or 100 percent of your prior year tax, whichever is smaller. If you fall short, you'll owe the penalty when you file your annual return — it's added to your tax bill. The IRS calculates it automatically; you don't have to figure it out yourself.

If you realize partway through the year that you've underpaid, you can increase your remaining quarterly payments to catch up. For example, if you miss the April payment but catch it by June, you can pay both the April and June amounts together on June 15. This reduces the underpayment penalty because you've paid more of what you owe.

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 payment amount. You can recalculate based on your actual earnings so far and your revised forecast for the rest of the year. This is especially useful if you had a big contract end, lost a client, or landed unexpected work.

To adjust, fill out a new Form 1040-ES worksheet with your updated income estimate and calculate a new quarterly amount. You can pay different amounts for each remaining quarter — there's no rule that says all four payments must be equal. If you've already overpaid in earlier quarters, you can reduce your later payments or claim a refund when you file your annual return.

Tracking Your Payments and Keeping Records

Keep a record of every estimated tax payment you make, including the date, amount, and confirmation number. If you pay by Direct Pay, save the confirmation email. If you mail a check, keep a copy of the form and a record of when you mailed it. These records prove you paid on time if the IRS ever questions your account.

When you file your annual tax return, you'll report all four quarterly payments on your return form. The IRS matches your reported payments against their records, so accuracy matters. If you overpaid across the year, you'll get a refund. If you underpaid, you'll owe the difference plus any applicable penalty.

Frequently Asked Questions

What if I can't pay the full amount by the important date?

Pay whatever you can by the due date. The penalty is based on how much you underpaid, so a partial payment reduces the penalty compared to paying nothing. You can also set up a payment plan with the IRS after you file your return if you owe a large amount.

Do I have to make estimated payments if I'm also getting a refund from last year?

Yes. Estimated payments and refunds are separate. You make estimated payments based on your expected income this year, regardless of what happened last year. If you expect to owe less this year, you can reduce your quarterly payments, but you still need to pay something if you'll owe $1,000 or more.

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

Yes. You can pay your entire year's estimated tax on the first due date (April 15) if you want. However, paying quarterly spreads the cost across the year and is easier to manage. There's no financial advantage to paying all at once.

What if I'm not sure how much I'll earn this year?

Use your prior year's income as a starting point and adjust as the year goes on. If you're self-employed or have variable income, the annualized income installment method lets you pay based on what you actually earned each quarter rather than guessing. A tax professional can help you set this up.

Do estimated tax payments cover state and local taxes too?

No. Federal estimated tax payments go only to the IRS. Many states require separate estimated tax payments if you owe state income tax. Check your state's tax agency website for state-specific important date and payment methods.