How to Make Estimated Tax Payments for Self-Employed

If you’re self-employed and you expect to owe at least $1,000 in federal tax this year, the IRS wants its money four times a year, not just in April. Those payments are called estimated taxes, and skipping them means penalties.

This guide covers the whole thing: who has to pay, the 2026 due dates, how to calculate what you owe (with a real example), how to actually send the payment, and what to do if you’ve already missed a quarter or can’t pay.

Key Takeaways

• You generally owe estimated taxes if you expect a federal tax bill of $1,000 or more after withholding.
• The 2026 due dates are April 15, June 15, September 15, 2026, and January 15, 2027.
• Self-employment tax is 15.3% and stacks on top of your regular income tax.
• Hit the safe harbor (90% of this year’s tax or 100% of last year’s, 110% for higher earners) to avoid penalties.
• Missed a quarter or can’t pay? Penalty relief, payment plans, and catching up on back returns are all on the table.

Do You Have to Make Estimated Tax Payments?

You need to pay estimated taxes if you expect to owe $1,000 or more in federal tax for the year after subtracting any withholding. Most self-employed people cross that line once the business turns a real profit.

This applies to:

• Freelancers and independent contractors
• Sole proprietors and single-member LLC owners
• Partners in a partnership
• S-corporation shareholders

There are a couple of ways out. You don’t have to pay estimated taxes if you had no tax liability last year (your prior tax year covered a full 12 months and you were a U.S. citizen or resident the whole time). And if self-employment is a side gig on top of a W-2 job, you can often cover the extra tax by asking your employer to withhold more from your paycheck instead of sending quarterly payments. The IRS lays out the basic rules on its estimated taxes page.

When Are Estimated Taxes Due in 2026?

Estimated taxes are due four times a year. For 2026, the dates are:

• April 15, 2026 (Q1: January through March)
• June 15, 2026 (Q2: April and May)
• September 15, 2026 (Q3: June through August)
• January 15, 2027 (Q4: September through December)

Notice the periods aren’t even. The IRS uses uneven windows, not clean calendar quarters, so the gaps between dates vary. If a due date lands on a weekend or holiday, you have until the next business day.

There’s one shortcut for the final payment. If you file your 2026 return and pay everything you owe by February 1, 2027 (the January 31 deadline shifts because it falls on a weekend), you can skip the January 15 payment entirely.

How Much Should You Pay? Calculating Self-Employed Estimated Taxes

Your quarterly payment covers two separate taxes: regular income tax and self-employment tax. You estimate both, add them together, and split the total into four.

Clean records make this quick. If your books are a mess, that’s worth fixing first, and solid bookkeeping pays for itself when tax time comes around. Here’s the process, using a freelancer with $80,000 in net profit for 2026 as the example.

Step 1: Estimate Your Net Self-Employment Income

Net profit is your gross business income minus your deductible business expenses, the figure you report on Schedule C. Say our freelancer billed $95,000 and had $15,000 in expenses. That leaves $80,000 in net profit, and that’s the number the rest of the math runs on.

Step 2: Calculate Self-Employment Tax

Self-employment tax is 15.3% of your net earnings: 12.4% for Social Security and 2.9% for Medicare. You apply it to 92.35% of your net profit, not the full amount.

For the example:

• $80,000 × 92.35% = $73,880
• $73,880 × 15.3% = about $11,304

The 12.4% Social Security portion only applies to the first $184,500 of net earnings in 2026, while the 2.9% Medicare portion has no cap. You owe self-employment tax once your net earnings reach $400, and you get to deduct half of it ($5,652 here) when you figure your income tax. The IRS explains the details on its self-employment tax page.

Step 3: Add Your Income Tax

You also owe regular income tax on your net profit, at your normal bracket. Two things bring it down: the deduction for half your self-employment tax, and the qualified business income (QBI) deduction, which can shave up to 20% off your business profit.

For our freelancer (single, no other income), after the standard deduction and QBI, federal income tax works out to roughly $5,300. Treat that as illustrative, since your number depends on your filing status, other income, and deductions. The Form 1040-ES worksheet walks through it precisely, and tax brackets change every year.

Step 4: Divide Into Four Payments

Add the two taxes, then divide by four:

• Self-employment tax: about $11,304
• Income tax: about $5,300
• Total estimated tax: about $16,600
• Each quarterly payment: about $4,150

If your income jumps or drops during the year, redo the worksheet and adjust the payments you have left. For income that’s lumpy or seasonal, you can also annualize, paying based on what you actually earned in each period instead of four equal amounts.

The Safe Harbor Rule: How to Avoid an Underpayment Penalty

You don’t have to predict your income perfectly. The safe harbor rules let you dodge an underpayment penalty as long as you pay one of these:

• At least 90% of what you’ll owe for the current year, or
• 100% of what you owed last year (110% if your adjusted gross income was over $150,000).

The prior-year method is the simple, low-risk play. You already know last year’s number, so you can base your four payments on it without sweating an underestimate on a growing income. Hit that target and the IRS won’t charge a penalty even if you owe more when you file.

How to Pay Your Quarterly Taxes

The fastest free option is IRS Direct Pay, which moves money straight from your checking account in a few minutes with no account to set up. Your other choices:

• EFTPS (the Electronic Federal Tax Payment System): free, but enrollment takes about a week because the IRS mails your PIN.
• The IRS2Go app from your phone.
• Debit card, credit card, or digital wallet (processing fees apply).
• A check or money order mailed with a Form 1040-ES voucher.

Whichever you use, save the confirmation. You can compare the online methods on the IRS payments page. And if you’d rather hand the whole thing off, current-year tax preparation covers the math and the filing.

What Happens If You Miss a Payment or Can’t Pay?

Missing a quarter isn’t a catastrophe, but it does trigger an underpayment penalty. The IRS calculates it for each period using its interest rate, which is 6% for the second quarter of 2026, down from 7% in the first quarter. The rate resets every quarter and compounds daily, so the move is to pay as soon as you can and stop it from growing.

If you’ve underpaid all year, owe back taxes from prior years, or simply can’t cover the bill, you have options:

• Penalty abatement can remove penalties if you qualify, and first-time abatement is common for people with a clean history.
• You can set up an IRS payment plan to pay a balance over time.
• If you’re behind on returns, not just payments, you’ll usually need to file your back tax returns before most resolution options open up.

The sooner you deal with it, the cheaper it stays.

Behind on your estimated taxes, or staring down a balance you can’t pay? Find out what your options are in a free, confidential consultation, or reach a licensed tax professional. Contact us now.