What estimated tax payments are and when you owe them

Estimated tax payments are quarterly payments you send to the IRS or your state tax authority when you expect to owe more than a certain amount at tax time and no employer is withholding taxes from your income. The IRS requires these payments if you think you will owe $1,000 or more when you file your return (some states use different thresholds). You make four payments per year on a schedule set by the IRS, not whenever you choose.

You typically owe estimated payments if you are self-employed, have investment income, receive rental income, or have other income sources where taxes are not automatically withheld. Employees with a second job or side income may also need to make estimated payments if their withholding from their main job does not cover their total tax bill. The goal is to pay taxes throughout the year rather than in one lump sum on April 15.

If you do not make estimated payments when required, the IRS can charge you a penalty and interest on the unpaid amount, even if you pay the full balance when you file. The penalty applies to each quarter you underpay, so missing all four payments costs more than missing one.

Key Takeaways

  • Estimated tax payments are due four times per year on dates set by the IRS: typically April 15, June 15, September 15, and January 15 of the following year.
  • You calculate each payment based on your expected income for the year, and the IRS provides a worksheet (Form 1040-ES) to help you figure the amount.
  • Underpayment penalties explore to each quarter you do not pay enough, even if you pay your full tax bill when you file your return.
  • You can pay estimated taxes online through IRS Direct Pay, by mail with a voucher, or through an authorized payment processor, and your state may have its own separate payment system.

The four payment dates and how to calculate what you owe

The IRS sets four payment important date each year. For the 2024 tax year, they are April 15, June 17, September 16, and January 16, 2025. If a important date falls on a weekend or holiday, the due date moves to the next business day. Each payment covers one quarter of your expected annual tax liability.

To figure out how much to pay each quarter, the IRS provides Form 1040-ES, which includes a worksheet that walks you through your expected income, deductions, credits, and tax. You estimate your total tax for the year, subtract any tax already withheld from other income sources, and divide by four. If your income varies by season, you can pay different amounts each quarter rather than equal payments, though most people pay the same amount each time.

If you underpay in one quarter but overpay in another, the IRS still charges a penalty on the underpayment quarter. The penalty is calculated daily and compounds, so even a small shortfall can add up if it sits unpaid for months.

How to pay estimated taxes

The IRS offers several ways to pay estimated taxes. IRS Direct Pay is free and lets you pay directly from your bank account through the IRS website without creating an account. You enter your Social Security number, tax year, and payment amount, and the system tells you the exact date the payment will be deducted. You can schedule payments in advance.

You can also pay by mail by printing Form 1040-ES (which includes a payment voucher) and sending it with a check or money order to the IRS address listed on the form. Mail payments take longer to process, so send them well before the important date to avoid a late-payment penalty.

Credit card and debit card payments are available through authorized payment processors listed on the IRS website, though these processors charge a convenience fee (usually 1.5 to 2 percent of the payment). Some people use this method to earn rewards points, but the fee often outweighs the benefit.

State estimated tax payments

Most states that have an income tax also require estimated payments, and the rules are similar to federal requirements. However, state thresholds, due dates, and payment methods vary. Some states use the same four federal dates; others set their own. A few states do not require estimated payments at all, even if you owe state income tax.

You typically pay state estimated taxes separately from federal payments, either through your state's tax department website or by mail. Some states allow you to pay online for free; others charge a fee. Check your state's tax authority website for the specific due dates, payment threshold, and payment methods for your state.

If you move to a different state during the year, you may owe estimated payments to both states for the portion of the year you lived in each. The rules for how to calculate and allocate payments between states depend on your state's tax laws.

Penalties for underpayment and how they are calculated

If you do not pay enough in estimated taxes by each quarterly important date, the IRS charges an underpayment penalty on the shortfall. The penalty is not a flat fee; it is calculated as a percentage of the unpaid amount for each day it remains unpaid. The rate changes quarterly and is based on the federal short-term interest rate plus 3 percent.

For example, if you owe $2,000 for the second quarter but pay only $1,500, the IRS charges a penalty on the $500 shortfall from June 15 until you pay it (either when you make a later payment or when you file your return). If you do not pay the $500 until you file your return the following April, the penalty accrues for nearly 10 months.

You can avoid the penalty if you pay at least 90 percent of your current year's tax or 100 percent of your prior year's tax (110 percent if your prior year income was over $150,000) by the important date. This is called the safe harbor rule. If you meet either threshold, no penalty applies even if you owe more when you file.

Adjusting payments if your income changes

Estimated tax payments assume your income will stay roughly the same throughout the year. If your income drops or rises significantly, you can adjust your remaining payments to avoid overpaying or underpaying. You do not need permission from the IRS to change the amount; you straightforward calculate a new estimate and pay the adjusted amount on the next due date.

For example, if you are self-employed and your business is slower than expected, you can recalculate your annual income and lower your third and fourth quarter payments. If you have a large bonus or unexpected income, you can increase your payments to stay on track. Recalculating after each quarter keeps your total payments closer to what you will actually owe.

If you significantly overpay during the year, you can claim the overpayment as a refund when you file your return, or you can request a refund of the overpayment before year-end by filing Form 1040-ES with a written request. Most people wait and claim the overpayment on their return.

Who does not need to make estimated payments

You do not owe estimated payments if your employer withholds enough tax from your paychecks to cover your total tax bill. Employees with only W-2 income typically do not make estimated payments because their employer handles withholding automatically. However, if you have a second job, rental income, or investment income on top of your W-2 job, you may need estimated payments for the additional income.

You also do not owe estimated payments if your expected tax liability is under the IRS threshold ($1,000 for most filers). Some states have lower thresholds, so check your state's rules. If you expect to owe less than the threshold, you can straightforward pay the full amount when you file your return without penalty.

Retirees who live only on Social Security do not owe estimated payments. However, retirees with other income sources—such as distributions from retirement accounts, pensions, or part-time work—may owe estimated payments depending on the total amount.

Frequently Asked Questions

What happens if I miss an estimated tax payment important date?

The IRS charges a penalty and interest on the unpaid amount starting the day after the important date. You can still make the payment late, but the penalty continues to accrue. If you realize you missed a important date, pay as soon as possible to minimize the penalty. You can also request penalty relief if you have a reasonable cause, such as a serious illness or natural disaster.

Can I pay estimated taxes monthly instead of quarterly?

No, the IRS sets four specific dates per year, and you cannot change the schedule. However, you can pay more than the required amount on any date, or you can make extra payments between quarters if you want to spread out the burden. Only the four official dates matter for the safe harbor rule.

Do I need to make estimated payments if I am starting a new business?

If you expect to owe $1,000 or more in taxes from your business income, yes. You can estimate your income for the remainder of the year and make payments for the quarters that are left. For example, if you start a business in July, you would make payments for the third and fourth quarters only.

What if my income is too unpredictable to estimate?

You can use your prior year's tax as a safe harbor: pay 100 percent of last year's tax (110 percent if your prior year income exceeded $150,000) and you will avoid penalties even if you owe more this year. This method works well for people with highly variable income, such as freelancers or commission-based workers.

Can I pay estimated taxes through my bank or accounting software?

Some accounting software and tax preparation platforms offer estimated payment features that connect to IRS Direct Pay or authorized processors. These tools can help you calculate the amount and schedule payments, but the payment itself still goes through the IRS or a processor, not your accountant or software company.