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Freelancer quarterly tax calculator

Estimate what you owe the IRS each quarter as a 1099 contractor or self-employed worker — before the bill surprises you.

Income
>$
>$

Software, home office, equipment, travel, health insurance, etc.

Tax details
>$

This affects which federal bracket your freelance income falls in.

%
Estimated payment each quarter
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ANNUAL TAX BREAKDOWN
Gross freelance income—
Business expenses—
Net self-employment income—
SE tax deduction (½ of SE tax)—
Self-employment tax (15.3%)—
Federal income tax—
State tax (est.)—
Total tax owed (annual) —
Take-home after tax —
Set-aside rate
Based on your numbers, set aside — of every invoice you receive. Transfer it to a separate savings account the moment money lands.

Frequently asked questions

What is self-employment (SE) tax?
When you're employed, your employer pays half of Social Security (6.2%) and Medicare (1.45%) taxes. As a freelancer, you pay both halves yourself — that's 15.3% on your net self-employment income up to the Social Security wage base ($168,600 in 2024). The good news: you can deduct half of this SE tax from your income before calculating income tax.
When are quarterly payments due?
Q1 (Jan–Mar): April 15 · Q2 (Apr–May): June 17 · Q3 (Jun–Aug): September 16 · Q4 (Sep–Dec): January 15 of the following year. Missing these dates triggers an underpayment penalty — typically 5–8% annualized on the shortfall, which is avoidable with proper planning.
What counts as a business expense?
Any ordinary and necessary expense for your business: home office (dedicated space), equipment, software subscriptions, professional development, business travel, client meals (50%), health insurance premiums (100% deductible for self-employed), phone and internet (business-use portion), and professional services like accounting.
Do I owe taxes if freelance income is under a certain amount?
If your net self-employment income exceeds $400 in a year, you must file a tax return and pay SE tax. Federal income tax depends on your total income minus deductions. Even small freelance earnings trigger the SE tax requirement, which catches many first-time freelancers off guard.
Should I form an S-Corp or LLC?
At around $50k–$70k+ in net freelance income, an S-Corp election can reduce self-employment taxes by paying yourself a "reasonable salary" and taking the rest as distributions not subject to SE tax. The savings can be $5,000–$15,000/year at higher incomes, but there are administrative costs. Talk to a CPA before making this decision.

Freelancer Tax Guide 2025 — What Every 1099 Worker Must Know

Freelancing unlocks freedom — but it also delivers a tax surprise the first year. Unlike W-2 employees who have taxes automatically withheld, self-employed workers are responsible for paying their own income tax AND both sides of Social Security and Medicare (called self-employment tax). Missing quarterly payments triggers IRS penalties on top of your regular tax bill.

Effective Tax Rate by Freelance Income (2025)

Gross Freelance IncomeSE TaxFederal Income TaxTotal TaxSet Aside Rate
$30,000$4,062$1,800$5,86220%
$60,000$8,124$6,200$14,32424%
$100,000$13,065$14,400$27,46527%
$150,000$17,708$27,800$45,50830%

*Single filer, standard deduction, no state tax, no business expenses. Add expenses to significantly lower these rates.

Top Tax Deductions for Freelancers

Home office deduction — Dedicated workspace: $5/sq ft (simplified method, max 300 sq ft = $1,500) or actual expenses proportional to office size.

Health insurance premiums — 100% deductible if you pay for your own coverage and aren't eligible for employer coverage through a spouse.

Self-employment tax deduction — You can deduct 50% of your SE tax from gross income before calculating income tax.

Retirement contributions — Solo 401k: up to $69,000/year (2025). SEP-IRA: up to 25% of net self-employment income. These reduce taxable income dollar-for-dollar.

Software, equipment, subscriptions — Any tool used for business. Laptop, Adobe CC, Notion, accounting software — all deductible.

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