When are quarterly estimated taxes due for freelancers?

The four federal estimated tax due dates are typically April 15, June 16, September 15, and January 15 of the following year. Exact dates shift slightly when they fall on weekends or holidays, so verify each year on the IRS website.

How much should I pay each quarter?

Divide your estimated annual tax liability (SE tax plus income tax) by four. Alternatively, use the safe harbor method: pay 25% of last year's total tax bill each quarter (27.5% if prior-year AGI exceeded $150,000) to avoid penalties even if your current income is higher.

What if I miss a quarterly payment?

The IRS charges an underpayment penalty calculated from the due date of the missed payment through the date it is paid. The penalty applies per quarter, so catching up later does not fully erase it. File Form 2210 with your annual return to calculate what you owe.

Do I have to pay estimated taxes if I also have a W-2 job?

If you have a W-2 job and 1099 income, you may be able to increase withholding on your W-2 to cover the extra tax from self-employment income, potentially avoiding quarterly payments. Use the IRS Tax Withholding Estimator to determine if your W-2 withholding is sufficient.

Quarterly Estimated Taxes: A Complete Guide for Freelancers

By Chris Terry, Founder & Editor
Updated June 17, 2026

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If you expect to owe at least $1,000 in federal taxes for the year, the IRS requires you to make quarterly estimated tax payments. These payments are due in April, June, September, and January and cover both self-employment tax (15.3% on net earnings) and federal income tax. Underpaying or missing payments can result in IRS penalties regardless of whether you pay the full balance by April 15.

Why Freelancers Must Pay Quarterly

The US tax system operates on a pay-as-you-go basis. Employees satisfy this requirement through payroll withholding. Because 1099 contractors have no employer withholding taxes from their pay, the IRS requires them to make four estimated payments during the year. According to the IRS estimated tax guidance, you generally must make quarterly payments if you expect to owe $1,000 or more when you file your return and your withholding and credits will cover less than 90% of your tax liability for the current year (or 100% of last year's liability, whichever is smaller).

The Four Quarterly Due Dates

Payment Period	Due Date
January 1 to March 31	April 15
April 1 to May 31	June 16
June 1 to August 31	September 15
September 1 to December 31	January 15 (following year)

Note that the payment periods are not equal quarters. The second period covers only two months (April and May), which catches many first-time freelancers off guard. If a due date falls on a weekend or federal holiday, it shifts to the next business day. Always verify the current year's exact dates on the IRS website, as they can shift slightly.

How to Calculate Your Estimated Payment

The IRS provides Form 1040-ES, which includes a worksheet to estimate your annual tax liability and divide it into four payments. Here is the simplified approach most freelancers use:

Step 1: Estimate your net self-employment income for the year (gross revenue minus business expenses).
Step 2: Multiply net self-employment income by 92.35% (the SE tax applies to 92.35% of net earnings, accounting for the deductible half of SE tax).
Step 3: Multiply that result by 15.3% to get your estimated SE tax.
Step 4: Subtract half of SE tax from your net income, then subtract your standard deduction or itemized deductions. Apply the income tax brackets to the result.
Step 5: Add SE tax and income tax. Divide by four to get a rough quarterly payment.

This process is easier than it sounds with a good calculator. The free 1099 tax calculator on this site automates these steps so you can get an estimated quarterly payment amount in seconds.

Safe Harbor: The Simpler Method

If estimating your income is difficult because your earnings fluctuate, the IRS safe harbor rules offer a simpler path to avoiding penalties. You can avoid the underpayment penalty by paying whichever is smaller of these two amounts:

90% of your current year's actual tax liability, or
100% of last year's total tax liability (110% if your prior-year adjusted gross income exceeded $150,000)

If you choose the prior-year safe harbor method, divide last year's total tax (line 24 on Form 1040) by four and pay that amount each quarter. This approach is especially useful if your current-year income is unpredictable. You may owe a balance in April, but you will not owe a penalty.

How to Actually Make the Payments

The IRS offers several payment methods for estimated taxes:

IRS Direct Pay: Free bank account transfer at IRS.gov, no registration required.
Electronic Federal Tax Payment System (EFTPS): Free system for scheduling payments in advance. Requires one-time registration.
IRS2Go app: Mobile payment option linked to Direct Pay or EFTPS.
Check or money order: Mail with Form 1040-ES voucher (the relevant payment voucher from the Form 1040-ES booklet).
Credit or debit card: Available through IRS-approved third-party processors, though processing fees apply.

When making payments, always indicate the tax year and payment type so the IRS applies the funds correctly.

What Happens If You Miss a Payment or Underpay?

Missing a quarterly deadline or underpaying triggers an underpayment penalty. The penalty is calculated based on the federal short-term interest rate plus 3%, applied to the underpaid amount for each day it remains unpaid. The IRS calculates this quarter by quarter using Form 2210, which is filed with your annual return. Even if you pay everything owed by April 15, you may still owe the penalty for quarters that were underpaid during the year.

Paying Self-Employment Tax Through Estimated Payments

Your quarterly estimated payments cover both self-employment tax and income tax together in a single payment. There is no need to send separate checks. According to the IRS guidance on self-employment tax, paying SE tax through quarterly estimates is the standard method for self-employed individuals. These payments also count toward your Social Security earnings record at the Social Security Administration, which affects your future retirement and disability benefits.

Practical Tips for Staying on Track

Set calendar reminders two weeks before each due date so you have time to calculate and transfer funds.
Keep a dedicated tax savings account and transfer 25% to 30% of every payment received into it.
Reconcile your books monthly rather than scrambling at quarter-end.
If your income varies widely, recalculate your estimate each quarter based on year-to-date actuals rather than relying solely on prior-year figures.
Save copies of all payment confirmations in case of an IRS inquiry.

State Estimated Taxes

Most states that impose income tax also require quarterly estimated payments. State due dates often mirror the federal schedule but not always. Check your state's department of revenue website for state-specific rules, rates, and payment portals. Ignoring state estimated taxes can create a separate set of penalties independent of anything owed to the IRS.

Quarterly estimated taxes can feel overwhelming at first, but once you build the habit of reserving a percentage of every payment and marking the four due dates on your calendar, the process becomes routine. When in doubt about your specific situation, whether that involves irregular income, multiple states, or business structure questions, a licensed CPA or enrolled agent who works with self-employed clients is the best resource. The guidance here is educational and does not substitute for personalized professional tax advice.