What quarterly tax payments are and when you owe them
If you're self-employed, own a rental property, or have significant investment income, the IRS expects you to pay taxes four times a year instead of waiting until April. These quarterly estimated tax payments cover income tax, self-employment tax, and sometimes other taxes. You send money directly to the IRS on a schedule they set, not through your employer.
The payment dates fall on April 15, June 15, September 15, and January 15 of the following year. If any date lands on a weekend or federal holiday, the deadline moves to the next business day. Missing a payment or paying too little can result in penalties and interest, even if you end up overpaying for the year overall.
Homeowners most commonly face quarterly payments when they rent out a property, run a business from home, or have rental income from a vacation property. If you have a mortgage and a regular W-2 job, you typically don't owe quarterly payments unless you have other income sources.
Key Takeaways
- Quarterly payments are due April 15, June 15, September 15, and January 15, with penalties if you underpay or miss a deadline.
- You calculate what you owe based on your expected income for the year, not what you actually earned in the previous quarter.
- The IRS provides Form 1040-ES to help you estimate your tax liability and determine payment amounts.
- You can pay online through IRS Direct Pay, by phone, by mail with Form 1040-ES vouchers, or through an authorized payment processor.
- Keeping records of each payment and the confirmation number protects you if the IRS questions whether you paid on time.
How to calculate what you owe each quarter
Start with Form 1040-ES, the IRS worksheet for estimated tax. It walks you through your expected income for the year, subtracts deductions, and estimates your total tax liability. You then divide that by four to get your quarterly payment amount. The form includes worksheets for self-employment tax, which is higher than regular income tax because you pay both the employer and employee portions of Social Security and Medicare.
If your income is uneven — for example, you earn most rental income in summer months — you don't have to pay the same amount each quarter. You can adjust payments based on what you actually earned in each quarter, though this requires more record-keeping and carries more risk of underpayment penalties if you guess wrong.
Many homeowners use tax software or work with a tax professional to calculate quarterly payments, especially if they have rental properties with deductions for repairs, property management, or depreciation. A professional can also flag whether you're on track to owe penalties and suggest adjustments before the next deadline.
Paying through IRS Direct Pay or approved payment processors
IRS Direct Pay is the fastest and cheapest way to pay. You go to irs.gov, enter your Social Security number or EIN, bank account details, and payment amount, and the money is withdrawn on the date you choose. There is no fee, and you get a confirmation number immediately. The IRS confirms receipt within 24 hours.
If you don't want to use Direct Pay, you can pay through an authorized payment processor — companies like PayPal, Stripe, or major credit card processors that the IRS has approved. These charge a convenience fee (usually 2 to 3 percent of the payment) but let you use a credit card if you prefer. You'll still get a confirmation number for your records.
Both methods require you to have your Social Security number or Employer Identification Number (EIN) and to know your payment amount before you start. If you're unsure whether you owe, it's better to pay a conservative estimate on time than to miss the deadline while calculating.
Paying by mail or phone
You can mail a check or money order with Form 1040-ES vouchers — the tear-off payment stubs included with the form. Write your Social Security number or EIN on the check, include the voucher for the quarter you're paying, and mail it to the IRS address listed on the form (which varies by region). Mail payments should arrive at least five business days before the deadline to be considered on time.
Paying by phone is also an option through the IRS's automated phone system or by speaking to a representative. Call 1-800-829-1040 to find the current phone payment number. You'll need your bank account information and the payment amount ready. Phone payments are free but don't provide the same immediate confirmation as online payments.
Mail and phone payments are slower and riskier because you can't prove receipt the same way you can with Direct Pay. If you use these methods, keep a copy of the voucher and any confirmation number or receipt for at least three years.
What to do if you miss a payment deadline
If you miss a quarterly deadline, pay as soon as you realize it. The IRS will assess a penalty and interest on the unpaid amount, but paying late is better than not paying at all. The penalty is usually around 0.5 percent per month of the unpaid tax, plus interest that changes quarterly.
When you file your annual tax return, the IRS will credit any quarterly payments you made against your total tax liability. If you underpaid throughout the year, you'll owe the difference plus penalties. If you overpaid, you'll get a refund or can apply it to next year's estimated taxes.
If you expect to owe penalties, you can file Form 2210 with your tax return to request a waiver or reduction based on your circumstances — for example, if your income was uneven or you had an unexpected life event. This doesn't always work, but it's worth trying if your situation was genuinely unusual.
Tracking payments and keeping records
Save every confirmation number, receipt, or voucher copy from each quarterly payment. The IRS matches payments to your account by Social Security number or EIN and payment date, so if there's ever a discrepancy, you need proof of what you paid and when. Keep these records for at least three years, ideally longer.
Create a simple spreadsheet or file with the payment date, amount, method (Direct Pay, check, phone), and confirmation number for each quarter. This takes five minutes per payment and can save hours of frustration if the IRS questions whether you paid on time. It also helps you track whether you're on pace to owe or receive a refund by year-end.
If you use tax software or a tax professional, they often keep records automatically. Ask them to provide you with a copy of your payment history each year so you have your own backup.
Adjusting payments if your income changes
Quarterly payments are based on your estimate, not your actual income. If your situation changes — you sell a rental property, your business income drops, or you have a major life event — you can recalculate and adjust future payments. You don't go back and change past payments; you just pay a different amount going forward.
If you underpaid early in the year but expect to earn less in the second half, you can reduce your third and fourth quarter payments. If you earned more than expected, you can increase them. The key is to document your reasoning in case the IRS questions it later.
Some homeowners choose to have extra tax withheld from a W-2 job to cover rental income or business income, which reduces or eliminates the need for quarterly payments. This is simpler but less flexible because you can't adjust withholding as easily as you can adjust quarterly payments.
Frequently Asked Questions
What happens if I pay more than I owe in quarterly payments?
You'll receive a refund when you file your annual tax return, or you can request that the overpayment be applied to next year's estimated taxes. Either way, you don't lose the money — it just comes back to you or reduces what you owe next year.
Do I have to make quarterly payments if I'm unsure whether I'll owe taxes?
If you think you might owe, it's safer to pay. The penalty for underpaying is usually smaller than the penalty for not paying at all. You can always adjust future payments down if your income is lower than expected, or request a refund if you overpaid.
Can I use a credit card to pay quarterly taxes?
Yes, through an authorized payment processor, but there's a fee of 2 to 3 percent. Direct Pay (free) and checks (no fee) are cheaper. Credit card payments are useful only if you're earning rewards that exceed the fee or if you need to delay payment for cash flow reasons.
What if I have both a W-2 job and rental income?
You may still owe quarterly payments on the rental income. Your W-2 employer withholds tax on your salary, but that withholding doesn't cover rental income. Use Form 1040-ES to calculate whether you need to pay quarterly, or ask your tax professional to review your situation.
How do I know if I'm on track to owe penalties?
If your total quarterly payments are less than 90 percent of your current year tax liability (or 100 percent of last year's liability, whichever is smaller), you may owe a penalty. Tax software and tax professionals can calculate this for you, or you can review it yourself using Form 2210 instructions.