What estimated tax payments are and why you might owe them

An estimated tax payment is a quarterly payment you send to the IRS when you expect to owe taxes but have no employer withholding money from your paycheck. The IRS wants tax money throughout the year, not all at once on April 15. If you're self-employed, a freelancer, a gig worker, or you have significant income from investments or rental property, you likely need to make these payments four times a year.

The reason estimated payments exist is straightforward: the IRS collects most people's taxes through payroll withholding. Your employer takes money out of each check and sends it to the government. If you don't have an employer doing that — or if your withholding doesn't cover all your tax liability — you're responsible for sending in payments yourself. Skipping them can result in penalties and interest, even if you ultimately pay what you owe when you file your tax return.

You don't need estimated payments if your tax liability is small enough, which varies by income level and filing status. The IRS publishes thresholds each year, but a common rule is that you might not need them if you expect to owe less than $1,000 in taxes for the year. However, if you owed taxes the previous year, the rules are stricter.

Key Takeaways

  • Estimated tax payments are due four times per year — typically in April, June, September, and January — and are required if you expect to owe $1,000 or more in taxes.
  • Self-employed people, freelancers, gig workers, and anyone with significant investment or rental income usually need to make these payments because they have no employer withholding.
  • You calculate each payment based on your expected annual income, and the IRS provides a worksheet (Form 1040-ES) to help you figure the amount.
  • You can pay online through IRS Direct Pay, by mail with a voucher, or through a payment processor, and the IRS charges no fee for Direct Pay.
  • Underpayment penalties explore if you don't pay enough throughout the year, even if you pay the full amount owed when you file your return.

Who is required to make estimated tax payments

You need to make estimated payments if you're self-employed or have income that isn't subject to withholding. This includes sole proprietors, partners in partnerships, S-corporation shareholders, and people who report business income on Schedule C. Freelancers, contractors, gig economy workers (delivery, rideshare, task services), and anyone running a side business fall into this group.

You also need estimated payments if you have substantial income from sources other than wages: rental property, capital gains from selling investments, interest, dividends, or retirement account distributions. If you're retired and taking distributions from an IRA or 401(k), or if you have a pension, you might need estimated payments depending on how much you're withdrawing and whether you've set up withholding on those distributions.

The IRS has specific thresholds. For 2024, you generally need to make estimated payments if you expect to owe $1,000 or more in taxes. However, if you owed taxes in the prior year, the threshold is lower — you may need to pay if you expect to owe any amount at all. The exact rules depend on your filing status and whether you're a U.S. citizen or resident alien.

The four payment due dates and how to calculate what you owe

Estimated tax payments are due on a quarterly schedule. For the 2024 tax year, the dates are April 15 (for January through March income), June 17 (for April through May income), September 16 (for June through August income), and January 15, 2025 (for September through December income). The IRS sometimes adjusts these dates when they fall on weekends or holidays, so check the IRS website or your payment notice to confirm the exact date.

To calculate how much to pay each quarter, you'll need to estimate your total income for the year and subtract deductions, then figure your tax on that amount. The IRS provides Form 1040-ES, which includes a worksheet that walks you through this calculation. You estimate your income, subtract standard or itemized deductions, calculate tax on the result, subtract any tax credits you expect to claim, and divide by four to get your quarterly payment.

If your income is uneven throughout the year — for example, if you earn much more in summer than winter — you can pay different amounts each quarter based on actual income to date, rather than dividing evenly. This is called the annualized installment method and requires more detailed calculations, but it can reduce or eliminate underpayment penalties if your income is lumpy.

How to submit your estimated tax payment

The IRS offers several ways to pay. IRS Direct Pay is the fastest and costs nothing — you go to irs.gov, enter your Social Security number or EIN, bank account information, and payment amount, and the money is deducted on the date you choose. The payment typically posts within one business day.

You can also pay by credit or debit card through an approved payment processor. These processors charge a convenience fee (usually 1.87% to 2.35% of the payment), which you pay directly to them, not the IRS. The IRS website lists approved processors.

If you prefer mail, you can send a check or money order with Form 1040-ES voucher (the payment coupon included in the Form 1040-ES package) to the address listed on the form. This address varies by state. Mail payments take longer to process and offer no proof of timely payment until the IRS receives and records them, so keep a copy of your voucher and consider sending it certified mail.

Some people set up withholding on income sources instead of making estimated payments. If you're receiving a pension or IRA distribution, you can ask the payer to withhold federal income tax, which accomplishes the same goal. This doesn't work for self-employment income, but it's an option if your income comes from retirement accounts.

What happens if you underpay or miss a payment

If you don't pay enough in estimated taxes throughout the year, the IRS charges an underpayment penalty when you file your return. The penalty is calculated on the amount you underpaid and the number of days you underpaid it, using an interest rate the IRS sets quarterly. Even if you ultimately pay all the tax you owe when you file, you'll owe the penalty on top of that.

There are a few exceptions. If your income was uneven and you used the annualized installment method to pay different amounts each quarter, you may avoid the penalty. If you had no tax liability the prior year and your current year liability is under $1,000, you're generally not penalized. If you're a farmer or fisherman, different rules explore.

If you miss a payment date entirely, the penalty starts accruing when ready. However, paying late is better than not paying at all — the penalty is smaller than if you wait until April to pay everything. If you realize you've underpaid, you can make an additional payment at any time, and it will reduce the penalty.

Adjusting payments if your income changes mid-year

Estimated tax payments are based on predictions, and your actual income may differ. If you realize partway through the year that you'll earn significantly more or less than you expected, you can adjust your remaining payments. There's no penalty for changing the amount you pay each quarter — the IRS only penalizes underpayment based on what you should have paid given your actual income.

If your income drops unexpectedly, you can reduce or skip a payment. If it increases, you can pay more. The key is that your total payments for the year should be close to what you actually owe. If you're unsure whether to adjust, you can recalculate using Form 1040-ES and the annualized method, which lets you account for income that arrived in specific quarters.

Keep records of your income estimates and actual income throughout the year. When you file your tax return, you'll report all estimated payments you made, and the IRS will credit them against your total tax liability. If you overpaid, you'll receive a refund or can explore the overpayment to next year's taxes.

Frequently Asked Questions

What if I don't know how much I'll earn this year?

Use your prior year's income as a starting point and adjust based on what you know about the current year. If you're new to self-employment or expect significant changes, estimate conservatively — it's better to overpay and get a refund than to underpay and owe a penalty. You can adjust your payments as the year goes on and your actual income becomes clearer.

Can I make one large payment instead of four quarterly payments?

Technically yes, but it's not recommended. The IRS calculates underpayment penalties based on how long money was underpaid. If you pay everything in January for the whole year, you'll owe a penalty on the amounts that should have been paid in April, June, and September. Quarterly payments minimize or eliminate this penalty.

Do I need to make estimated payments if I have a day job and freelance on the side?

It depends on the amount. If your freelance income is small and your day job withholding covers your total tax liability, you may not need estimated payments. However, if your combined income pushes you into a higher tax bracket or your freelance income alone exceeds the threshold, you'll likely need them. Calculate your expected total tax liability to be sure.

What if I pay estimated taxes but then don't owe anything when I file?

You'll receive a refund of the overpayment, or you can ask the IRS to explore it to next year's estimated taxes. There's no penalty for overpaying — the IRS only penalizes underpayment.

Where do I send my estimated tax payment by mail?

The mailing address is printed on the Form 1040-ES voucher and varies by state. Never send a check directly to an IRS office without the voucher — include the voucher so the IRS can match your payment to your account. Send it to the address on the form, not to your local IRS office.