When Do You Have to Pay Federal Taxes: Extensions & Payment Plans

If you earn a paycheck, you pay federal taxes throughout the year through payroll withholding, and any remaining balance is due when you file your annual return by April 15 of the following year. If you have income that isn’t subject to withholding, such as self-employment earnings, rental income, or investment gains, you owe quarterly estimated payments on April 15, June 15, September 15, and January 15. So the answer to when do you have to pay federal taxes depends on how you earn: wage earners settle up once a year, everyone else pays four times.

The April 15 Annual Deadline

April 15 is the date your federal return is due and any unpaid balance must reach the IRS.1Internal Revenue Service. When to File When April 15 falls on a weekend or a legal holiday recognized in the District of Columbia, the deadline shifts to the next business day.2Office of the Law Revision Counsel. 26 US Code 7503 Emancipation Day, observed April 16 in D.C., has pushed the deadline to April 17 or 18 in several recent years.3Internal Revenue Service. Rev. Rul. 2015-13

For most wage earners, this date is a reconciliation more than a payment. Your employer has already sent withholding to the IRS each pay period based on the Form W-4 you filed.4Internal Revenue Service. Tax Withholding If too much was withheld, you get a refund. If too little was withheld, you owe the difference by April 15. This is why people sometimes get a surprise bill even though they had withholding all year. Updating your W-4 after marriage, a new child, or a second job keeps your withholding closer to your actual liability.

A few groups get more time automatically. If you live and work outside the United States, your deadline moves to June 15 without any request.5Internal Revenue Service. U.S. Citizens and Resident Aliens Abroad If you’re serving in a combat zone or qualified hazardous duty area, your deadline is suspended for the entire time you’re there plus 180 days after you leave.6Internal Revenue Service. Extension of Deadlines — Combat Zone Service The IRS also postpones deadlines on a case-by-case basis for taxpayers in federally declared disaster areas, with details published on its website.7Internal Revenue Service. Tax Relief in Disaster Situations

Quarterly Estimated Payments for Non-Wage Income

If income comes to you without withholding, the IRS expects you to pay in as you earn. The four quarterly deadlines are:8Internal Revenue Service. Estimated Tax for Individuals

  • Income earned January 1 through March 31: due April 15
  • Income earned April 1 through May 31: due June 15
  • Income earned June 1 through August 31: due September 15
  • Income earned September 1 through December 31: due January 15 of the following year

Miss these dates and the IRS applies an underpayment penalty, which works like interest charged on what you should have paid each quarter.9Office of the Law Revision Counsel. 26 USC 6654

Self-employed workers follow the same schedule for self-employment tax, which covers Social Security and Medicare at a combined 15.3%.10Internal Revenue Service. Self-Employment Tax You owe this tax once your net self-employment earnings reach $400 for the year, even if your total income is otherwise below the filing threshold. The Social Security portion applies to net earnings up to $184,500 in 2026;11Social Security Administration. Contribution and Benefit Base the Medicare portion has no cap, and an additional 0.9% Medicare surtax applies to net self-employment income above $200,000 (single) or $250,000 (married filing jointly).

Safe Harbors That Keep You Out of Penalty Territory

You avoid the underpayment penalty entirely if any of these hold true:12Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty

  • You owe less than $1,000 when you file, after subtracting withholding and credits.
  • You paid at least 90% of the tax you owe for the current year.
  • You paid 100% of last year’s total tax through withholding or estimated payments.

The last rule has a catch for higher earners. If your prior-year adjusted gross income was above $150,000 ($75,000 if married filing separately), the safe harbor climbs from 100% to 110% of the previous year’s tax.9Office of the Law Revision Counsel. 26 USC 6654 Coming off a strong income year and stepping into a stronger one is where people commonly get caught.

What Happens If You Miss a Deadline

Filing late costs far more than paying late. The failure-to-file penalty is 5% of your unpaid tax per month. The failure-to-pay penalty is 0.5% per month.13Internal Revenue Service. Collection Procedural Questions That is a tenfold gap. If you owe money and can’t pay, still file on time.

When both penalties run in the same month, the failure-to-file penalty is reduced by the failure-to-pay amount, giving a combined 5% monthly rate. The failure-to-file penalty caps at 25% after five months. The failure-to-pay penalty keeps running to its own 25% cap. Together they can reach 47.5% of the unpaid tax.13Internal Revenue Service. Collection Procedural Questions Returns more than 60 days past due carry a minimum penalty: $525 or 100% of the unpaid tax, whichever is smaller.14Internal Revenue Service. Failure to File Penalty

Interest runs on top of penalties. The IRS sets the rate quarterly at the federal short-term rate plus three percentage points.15Internal Revenue Service. Interest Rates For the first half of 2026, that is 7% in Q1 and 6% in Q2.16Internal Revenue Service. Quarterly Interest Rates

An Extension Buys Time to File, Not Time to Pay

Filing Form 4868 gives you until October 15 to submit your return.17Internal Revenue Service. Get an Extension to File Your Tax Return It does not extend your payment deadline. Whatever you owe is still due April 15. If you file an extension and pay nothing, the failure-to-pay penalty and interest begin the day after the original deadline.18Internal Revenue Service. Failure to Pay Penalty The practical move if April is tight: file the extension, estimate your balance, and pay as much as you can. Interest still runs on any shortfall, but you avoid the far steeper failure-to-file penalty.

If You Can’t Pay the Balance in Full

Owing more than you can pay is a common problem, and the IRS has more options than most people expect. Ignoring the bill is the one path that ends in liens and levies against your bank accounts and wages.19Internal Revenue Service. Levy

A short-term payment plan gives you up to 180 days to pay with no setup fee, though interest and the late payment penalty keep accruing.20Internal Revenue Service. Payment Plans; Installment Agreements For longer payoffs, the IRS offers monthly installment agreements with setup fees ranging from $22 (online with direct debit) to $178 (by phone, mail, or in person without direct debit). Low-income taxpayers, defined as those at or below 250% of the federal poverty level, qualify for waived or reduced fees. Once you are on an installment plan, the late payment penalty drops from 0.5% to 0.25% per month.

If paying the full amount would cause genuine financial hardship, an offer in compromise lets the IRS accept less than you owe. You need to be current on all required filings, and the application carries a $205 fee plus an initial payment when you submit the offer.21Internal Revenue Service. Offer in Compromise FAQs Low-income applicants are exempt from both. If the IRS accepts, you must stay current on all filings and payments for five years afterward or the full original debt returns.

Do You Even Have to File?

Not everyone is required to file. Whether you must depends on your filing status, age, and gross income. For tax year 2026, the general thresholds match the standard deduction for your status:22Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026

  • Single: $16,100
  • Married filing jointly: $32,200
  • Married filing separately: $16,100
  • Head of household: $24,150

Even under those amounts, file if your employer withheld federal tax from your pay, because filing is how you get that money back. And self-employment earnings of $400 or more require you to file and pay self-employment tax regardless of the standard filing threshold.10Internal Revenue Service. Self-Employment Tax