What are Estimated Taxes?

What are estimated taxes in freelancing?

Estimated taxes are quarterly payments freelancers make directly to the IRS (and often their state) to cover income tax and self-employment tax on their earnings. Unlike employees who have taxes withheld from every paycheck, freelancers receive the full amount from clients and are responsible for setting aside and paying taxes themselves throughout the year.

For U.S. freelancers, estimated taxes are due four times per year: April 15, June 15, September 15, and January 15 of the following year. Miss these deadlines or underpay significantly, and you'll face penalties on top of the tax owed.

Why estimated taxes matter for freelancers

The self-employment tax alone is 15.3% (covering both the employer and employee portions of Social Security and Medicare). Add federal and state income tax, and many freelancers owe 25-40% of their net income in total taxes. Without a system for setting that money aside, tax season becomes a financial crisis.

Estimated taxes also affect how you think about your rates. A freelancer earning $100/hour isn't taking home $100/hour—after taxes and business expenses, the take-home is significantly lower. Understanding your estimated tax burden is essential for pricing services profitably.

The quarterly rhythm also creates cash flow considerations. Large tax payments four times a year mean you need to plan around those dates, especially during slower months.

Example

Alex is a freelance UX designer who earned $120,000 in net self-employment income last year. Here's how the tax burden breaks down:

Federal self-employment tax: $120,000 x 15.3% = $18,360 Federal income tax (estimated): ~$18,000 (after deductions) State income tax: ~$6,000

Total annual tax liability: ~$42,360

Quarterly estimated payment: ~$10,590 per quarter

Alex sets aside 35% of every client payment into a separate savings account dedicated to taxes. When quarterly deadlines arrive, the money is already there.

Had Alex not made quarterly payments and waited until April to pay the full amount, they'd owe the $42,360 plus underpayment penalties—a painful surprise that could disrupt their entire financial plan.

How to handle it

Open a separate bank account for taxes. When client payments arrive, immediately transfer 25-35% (depending on your tax bracket and state) into this account. The money isn't yours—it's the government's.

Use last year's tax liability as your baseline. The IRS safe harbor rule says if you pay at least 100% of last year's tax liability in estimated payments (110% if your income exceeded $150,000), you won't face underpayment penalties—even if you owe more.

Track your income and expenses quarterly, not just at year-end. If your income changes significantly mid-year, adjust your estimated payments accordingly.

Work with an accountant, at least for the first year. The interplay of self-employment tax, deductions, and quarterly timing is complex enough that professional guidance pays for itself.

How Wiggle Room helps

Wiggle Room tracks your project revenue throughout the year, giving you clear visibility into your earnings trajectory. When you can see your actual and forecasted income by month, estimating quarterly tax payments becomes straightforward instead of guesswork.