The Freelancer's Guide to Quarterly Taxes (US Edition)

Taxes are the part of freelancing nobody talks about until it's too late.

Most freelancers wait until tax season rolls around, look at their income, panic, and try to figure out how much they owe. By then, it's often too late to plan.

Quarterly taxes are better. Four times a year, you estimate what you'll owe and pay the IRS. This spreads the pain and prevents a massive bill in April.

If this feels overwhelming, know that it's actually pretty straightforward once you understand the basics.

How Quarterly Taxes Work

As a freelancer, you don't have an employer withholding taxes from your paycheck.

Instead, you're responsible for paying taxes yourself - four times a year.

These are called "estimated taxes." You estimate your income and tax liability for the quarter, and you pay the IRS directly.

The IRS sets deadlines: April 15, June 15, September 15, and January 15.

You pay 1040-ES forms (basically a payment slip with your estimate).

Calculating Your Quarterly Tax Payment

To calculate what you owe, you need to know:

Your estimated income for the year. How much do you expect to earn?

Your deductions. What can you deduct (office supplies, equipment, software, etc.)?

Your tax rate. Federal income tax varies by bracket. Self-employment tax is 15.3% (for Social Security and Medicare).

Here's the formula:

Income - Deductions = Taxable Income Taxable Income × Tax Rate = Income Tax Owed Taxable Income × 15.3% = Self-Employment Tax Owed Income Tax + Self-Employment Tax = Total Tax Owed Total Tax Owed ÷ 4 = Quarterly Payment

Example: You expect to earn $60,000 this year. Your deductions are $10,000.

$60,000 - $10,000 = $50,000 taxable income $50,000 × 22% (your bracket) = $11,000 income tax $50,000 × 15.3% = $7,650 self-employment tax $11,000 + $7,650 = $18,650 total tax $18,650 ÷ 4 = $4,662.50 per quarter

If you haven't been paying quarterly, you might owe penalties. But you can catch up.

Common Deductions for Freelancers

These reduce your taxable income:

Home office. Either $5 per square foot (simplified method) or actual expenses (mortgage interest, utilities, insurance, repairs).

Equipment. Computer, software, tools you use for work. You can depreciate these or deduct immediately if under $2500.

Software and subscriptions. Adobe, Slack, PM tools, accounting software, etc.

Professional services. Bookkeeper, accountant, lawyer fees.

Office supplies. Pens, paper, desk, chair, etc.

Travel. Vehicle mileage (IRS allows $0.67/mile in 2024), hotels, airfare for business travel.

Education. Courses, books, conferences related to your field.

Health insurance. 100% deductible if you're self-employed.

Keep receipts for everything. The IRS might ask for proof.

Quarterly vs. Annual Taxes

Quarterly payments are estimated. You'll reconcile them when you do your annual taxes in April.

If you overpaid quarterly, you get a refund.

If you underpaid, you owe more in April plus interest and penalties.

Most people try to balance these so they don't owe a huge amount in April or leave a lot of money with the IRS for the year.

How to Pay

You can pay online through the IRS website (irs.gov).

You can mail a 1040-ES form with a check.

You can use a payment processor like Stripe or Square if they integrate with your system.

Online is easiest and fastest.

If You Miss a Quarter

If you miss a quarterly payment, pay it when you realize.

Late payments have penalties and interest.

But don't panic. You can fix it when you file your annual taxes. You might owe penalties, but at least it's addressed.

Better to pay late than not pay at all.

Tools to Help

Tax software. TurboTax, H&R Block have self-employed versions that walk you through estimated taxes.

Accountant. Hiring a CPA ($500-2000/year) is often worth it. They know all the deductions and can save you money.

Spreadsheet. Track income and expenses in a spreadsheet. Export to tax software or give to your accountant.

Accounting software. Wave, FreshBooks, QuickBooks Self-Employed. These track income and expenses automatically.

State and Local Taxes

Don't forget about state income tax (if your state has it) and local taxes.

Some states like Florida, Texas, and Wyoming have no income tax. Others have significant state taxes.

Check your state's requirements. You might owe quarterly state taxes too.

A Few Final Tips

Set aside money. When you get paid, set aside 30-40% for taxes. Put it in a separate account so it's not available to spend.

Keep records. Save all receipts and expense documentation. The IRS might audit.

Overpay slightly. Overpaying quarterly is better than underpaying. You'd rather get a refund than owe money in April.

Use a CPA if you have questions. Taxes are complex. A CPA can answer specific questions about your situation.

Start early. Don't wait until April to think about taxes. Plan quarterly.

FAQ

What if I didn't earn much this quarter? You might still owe self-employment tax even if income was low. Run the numbers.

Can I deduct my home office if I rent? Yes. Use actual expenses for rent, utilities, and insurance (the percentage of your home used for office).

What if I had a really good year and expect to earn more next year? Increase your quarterly payments. Better to overpay and get a refund than underpay and owe penalties.

Should I file quarterly or just pay annually? The IRS prefers quarterly. If you expect to owe over $1,000, quarterly is generally required. Even if not required, quarterly is smart.

What's the penalty for underpaying? Varies, but usually around 6% APR on unpaid taxes. Not huge, but it adds up.

Can I deduct equipment I already owned before freelancing? Only the percentage you use for work, and only from the time you started using it for work.

What if I'm not sure how much I'll earn? Use last year's income as an estimate. If you earn more, adjust next quarter.

Is it better to overpay or underpay? Overpay. Getting a refund is better than owing money.