One of the most confusing aspects of freelance income is the Self-Employment (SE) Tax. Unlike a standard employee, you must cover both the employer and employee portions of Social Security and Medicare. This calculator automatically calculates this 15.3% burden so you aren't surprised when your total tax bill is higher than your incremental federal bracket.

The IRS requires most freelancers to pay taxes as they earn income. If you expect to owe more than $1,000 in tax for the year, you must make estimated quarterly payments. This calculator provides a precise quarterly estimate to help you avoid underpayment penalties and manage your business cash flow effectively.

Contributing to a Solo 401(k) or SEP IRA is one of the most effective ways for freelancers to reduce their taxable income while building long-term wealth. These contributions are made "pre-tax," meaning every dollar you save for retirement effectively reduces your federal and state tax liability today.