Quarterly Tax Calculator for Freelancers
Enter your net self-employment income for the quarter and a rough income-tax rate. We'll split your estimated self-employment and income tax into one quarterly number.
Estimated for this quarter
Self-employment tax (15.3%)
$0.00
Income tax (your rate)
$0.00
Total estimated tax for the quarter
$0.00
Set aside this quarter
$0.00
How this estimate works
Self-employment tax covers Social Security and Medicare that an employer would otherwise split with you — a flat 15.3% of net self-employment income. On top of that, you owe regular income tax on that income, same as anyone else. This calculator adds the two together and treats the result as one quarter's worth.
This is a simplified estimate, not a tax filing. It doesn't account for deductions, the qualified business income deduction, filing status, state tax, or income that's already been taxed (like a W-2 paycheck with withholding). Use it to get in the right range, then confirm with a tax professional before you file.
A running estimate, not a one-time guess
FinnLion recalculates your quarterly tax estimate automatically from your real transactions all year — it knows the difference between self-employment income and a paycheck that's already been taxed, so you're never double-counting.
Try FinnLion free →Frequently asked questions
How is quarterly estimated tax calculated?▼
Add your self-employment tax (15.3% of net self-employment income, covering Social Security and Medicare) to your expected income tax, then divide the total by four. Each of the four IRS due dates gets one even payment.
What counts as net self-employment income?▼
Your business revenue minus business expenses — not your gross revenue. If you also have W-2 income with tax already withheld, don't include that income here; it's already been taxed.
Is this calculator exact?▼
No — it's a simplified estimate using a flat self-employment tax rate and the income tax rate you enter. It doesn't account for deductions, credits, filing status, or state tax. Use it to get in the right range, and confirm your actual obligation with a tax professional.
What if my income changes every quarter?▼
Run the numbers again each quarter using that period's actual net income. FinnLion's built-in quarterly tax estimate updates automatically from your real transactions as the year goes, instead of a one-time snapshot.
This tool provides estimates for informational purposes only and is not tax advice. Terms · Privacy