Why freelancers have to pay taxes differently

When you work a W-2 job, your employer withholds federal income tax and Social Security/Medicare taxes from every paycheck and remits them to the IRS throughout the year. When you freelance or work as an independent contractor, no one does this for you. The IRS still expects to receive tax payments throughout the year — they just expect you to send them yourself, once per quarter.

These are called estimated tax payments, and missing them — or underpaying — results in an IRS underpayment penalty added to your tax bill when you file in April.

What taxes do freelancers actually owe?

As a freelancer, you owe two types of federal tax on your net self-employment income:

Income tax — the same progressive tax everyone pays, based on your total income and filing status
Self-employment tax — 15.3% on net self-employment income (12.4% Social Security + 2.9% Medicare), because you're paying both the employee and employer share

Combined, these can easily reach 25–35% of net income for a mid-range freelancer. Setting aside 25–30% of every payment you receive is a reliable rule of thumb for quarterly tax savings.

The 25–30% rule of thumb

Until you've run your first full year of numbers, a practical approach: set aside 25–30% of every freelance payment into a separate savings account the day it arrives. This covers both income tax and self-employment tax for most freelancers earning under $150,000. When a quarterly deadline arrives, use our calculator to get the precise number — and any leftover savings becomes your buffer.

Step-by-step: your first quarterly payment

Step 1: Gather your numbers. You need your prior year total tax (Form 1040, Line 24), your prior year AGI (Line 11), and your expected income for this year.

Step 2: Use our calculator. Enter those three numbers plus your filing status and any W-2 withholding. The calculator applies the safe harbor formula and tells you exactly what to pay.

Step 3: Pay online. Go to IRS Direct Pay at irs.gov/payments. Select "Estimated Tax," choose the tax year, enter your payment amount, and pay directly from your bank account. Free, takes 5 minutes, and you get immediate confirmation.

Step 4: Repeat quarterly. Mark the four due dates on your calendar: April 15, June 15, September 15, January 15.

What if this is your first year freelancing?

If you had no self-employment income last year, you have no prior year tax liability to base the safe harbor calculation on. In this case, estimate your current year income as accurately as you can and pay 90% of your expected tax across four quarters. Use our calculator's current-year method for this scenario.

Many first-year freelancers underpay their first quarterly payment out of uncertainty. If this happens, just catch up on the next payment — the penalty accrues only on the shortfall per quarter, not on the full year.

Business expenses reduce your tax bill

Both income tax and self-employment tax are calculated on net profit — revenue minus business expenses. Track every legitimate expense: software subscriptions, equipment, home office, health insurance premiums, professional development, mileage for business travel, and any fees paid to platforms or contractors. These deductions directly reduce your taxable income and your SE tax base.

Estimated Taxes for Freelancers and 1099 Workers