Taxes for Freelancers: A Practical 2025 Playbook

When you freelance, the rules change

The moment you earn money outside a paycheck, you become a small business in the eyes of the IRS — even if it is a side hustle. Nobody withholds taxes for you, you owe self-employment tax, and you generally pay throughout the year. The IRS Publication 334, Tax Guide for Small Business is the IRS's own guide for exactly this situation.

You owe two taxes, not one

Freelancers face both regular income tax and self-employment tax (15.3% for Social Security and Medicare), described in the IRS — Self-Employment Tax (Social Security and Medicare Taxes). A useful rule of thumb is to set aside 25–30% of net earnings for federal taxes, adjusting for your bracket and state.

Pay quarterly to avoid penalties

Because there is no withholding, you make quarterly estimated payments if you expect to owe $1,000 or more, following the IRS — Estimated Taxes. Missing them triggers an underpayment penalty. Automating a transfer to a separate “tax” savings account each time you get paid keeps you ready.

Deductions are your biggest lever

Ordinary and necessary business expenses reduce both income and SE tax. Common freelancer write-offs include the home-office deduction, a portion of your phone and internet, software subscriptions, professional development, business mileage, and health-insurance premiums for the self-employed. Keep clean records and separate business and personal accounts.

Retirement plans built for the self-employed

A SEP-IRA or Solo 401(k) lets freelancers shelter far more than a standard IRA, cutting current taxes while building retirement savings — one of the most powerful moves available once your income is steady.