An estimated tax payment is money you send to the IRS during the year instead of waiting until April to pay your full tax bill
Most people have taxes withheld from their paychecks automatically, so they owe little or nothing on tax day. If you're self-employed, have investment income, or earn money without withholding, the IRS expects you to send in estimated tax payments four times a year. These are quarterly installments—due in April, June, September, and January—that cover the income tax, self-employment tax, and other taxes you'll owe on that income.
The IRS doesn't bill you for estimated payments. You calculate what you think you'll owe, divide it into four parts, and send each payment on the due date. If you don't send them and you owe more than $1,000 when you file your return, you may face penalties and interest, even if you eventually pay what you owe in full.
Key Takeaways
- Estimated tax payments are required if you expect to owe $1,000 or more in taxes and don't have enough withheld from paychecks or other income sources.
- You make four payments per year—April 15, June 15, September 15, and January 15 of the following year—based on your projected income.
- Self-employed people, freelancers, investors, and anyone with income that doesn't have taxes withheld should check whether they need to make these payments.
- Missing a payment or underpaying triggers IRS penalties and interest, even if you pay your full tax bill when you file your return.
- You can use IRS Form 1040-ES to calculate your estimated payment, or work with a tax professional to get the amount right.
Who has to make estimated tax payments
The IRS requires estimated payments from people whose tax situation doesn't include automatic withholding. This includes self-employed individuals, freelancers, gig workers, business owners, and anyone with significant investment income like dividends, capital gains, or rental income. If you have a W-2 job and also run a side business, you may need to make estimated payments on the business income even though your employer withholds from your salary.
You don't have to make estimated payments if you expect to owe less than $1,000 in total tax for the year. You also don't have to if you had no tax liability the previous year (meaning you owed $0). Some people reduce or eliminate estimated payments by having their employer increase withholding on their W-2 paycheck instead, which can be simpler to manage.
How to calculate what you owe each quarter
The IRS provides Form 1040-ES, which includes worksheets to help you estimate your income for the year and calculate your quarterly payment. The basic approach is to project your total income for the year, subtract deductions you expect to claim, and calculate the tax on that amount. You then divide the result by four to get your quarterly payment.
If your income is uneven—higher some months than others—you can use the annualized installment method, which lets you pay more in quarters when you earn more and less when you earn less. This prevents overpaying early in the year when income is slow. A tax professional or tax software can help with this calculation, especially if your situation is complex.
The due dates are April 15, June 15, September 15, and January 15 of the following year. If a due date falls on a weekend or holiday, the important date moves to the next business day. You can pay online through IRS Direct Pay, by phone, by mail, or through an authorized payment processor.
What happens if you miss a payment or pay too little
If you don't make estimated payments and you owe more than $1,000 when you file your tax return, the IRS charges a failure-to-pay penalty and interest on the unpaid amount. The penalty is typically 0.5% of the unpaid tax per month, and interest compounds daily. Even if you pay your full tax bill when you file in April, you still owe the penalty and interest on top of that.
The IRS also charges an underpayment penalty if your quarterly payments were too low. This applies even if you eventually pay everything you owe. The penalty is calculated based on the federal short-term interest rate plus 3%, and it accrues from the due date of each missed or short payment until you pay.
You can reduce or eliminate the underpayment penalty if you can show that you had a good reason for underpaying—for example, a major business loss or a significant life event. You'll need to file Form 2210 with your tax return to claim this relief, and the IRS has specific rules about what qualifies.
How estimated payments affect your tax return
When you file your tax return, you report all the estimated tax payments you made during the year. The IRS credits these payments against your total tax bill. If you paid more than you owed, you get a refund. If you paid less, you owe the difference plus any penalties and interest.
Estimated payments are treated the same as withholding from a paycheck—they reduce what you owe on tax day. The difference is that you're responsible for calculating and sending them yourself, rather than relying on an employer to do it automatically.
Alternatives to making quarterly estimated payments
If you have both W-2 income and self-employment income, you can sometimes avoid estimated payments by increasing the withholding on your W-2 paycheck. You do this by filing a new Form W-4 with your employer and claiming fewer allowances or requesting an additional amount to be withheld each pay period. This spreads your tax payments throughout the year without requiring you to calculate and send quarterly payments yourself.
Another option is to make one large estimated payment in January for the previous year's underpayment, though this only works if you're catching up on a prior year's liability. Some people also choose to set aside money each month in a separate account and then make a lump-sum payment when the quarterly due date arrives, which can help with cash flow management.
Keeping records of your estimated payments
Keep a record of every estimated tax payment you make, including the date, amount, and confirmation number if you paid online. The IRS sends a notice if they don't receive a payment, but having your own records protects you if there's a delay in processing or a payment gets lost. If you pay by mail, use certified mail with return receipt so you have proof of delivery.
When you file your tax return, you'll need to report each quarterly payment. Your tax software or tax professional will ask for these amounts, and you'll enter them on your return. The IRS also tracks estimated payments in their system, so discrepancies between what you report and what they have on file can trigger a notice.
Frequently Asked Questions
What if my income changes during the year and I've already made estimated payments?
You can adjust your remaining quarterly payments based on your updated income projection. If you've overpaid in the first two quarters, you can reduce the third and fourth payments. If you've underpaid, you can increase them. The IRS won't penalize you as long as your total payments for the year are close enough to what you actually owe.
Can I make estimated tax payments monthly instead of quarterly?
No, the IRS only accepts estimated payments on the four official due dates: April 15, June 15, September 15, and January 15. You can't split a quarterly payment into smaller monthly installments. However, you can set aside money monthly and then send the full quarterly payment on the due date.
Do I need to make estimated payments if I'm starting a new business?
If you expect your business to generate more than $1,000 in net income before taxes, yes. You should start making estimated payments in the quarter when you expect to cross that threshold. If you're unsure, it's safer to make a payment than to skip it and face penalties later.
What if I overpay my estimated taxes?
The overpayment is credited against your total tax bill when you file your return. You can either receive a refund of the excess or request that it be applied to your next year's estimated tax payments. You choose which option you prefer when you file.
Can I pay estimated taxes for someone else, like a spouse or family member?
No, each person is responsible for their own estimated tax payments. If you're married and file jointly, you can coordinate your withholding and estimated payments, but the payments must be made under each person's Social Security number or tax ID.