Going from a W-2 job to 1099 freelance work changes more than your paycheck, it changes who's responsible for taxes, benefits, and how you get paid at all.
A W-2 employee has taxes withheld automatically by an employer, who also pays half of Social Security and Medicare tax on their behalf. A 1099 contractor is paid the full amount with nothing withheld, and is responsible for both the employee and employer share of that tax themselves, known as self-employment tax.
| W-2 Employee | 1099 Contractor | |
|---|---|---|
| Tax withholding | Automatic, by employer | None, you set aside and pay it yourself |
| Social Security / Medicare | Split 50/50 with employer | You pay both halves (self-employment tax) |
| Benefits | Often included (health insurance, 401k match) | None, you source and pay for your own |
| Expense deductions | Very limited | Business expenses reduce taxable income |
| Payment | Regular paycheck | Per invoice, on your own terms |
Self-employment tax is 15.3% of net earnings (Social Security + Medicare combined), on top of ordinary income tax. It's the single biggest thing new freelancers underestimate, because a W-2 paycheck never shows the employer's half of that tax being paid on their behalf. Setting aside roughly 25–30% of every payment for taxes is a reasonable starting habit until you can calculate your actual rate.
The upside: real business expense deductions (equipment, software, home office, a portion of internet/phone), the ability to set your own rates and schedule, and, if structured well, potentially lower effective tax through deductions a W-2 employee can't take. It's a real tradeoff, not strictly a downgrade, but it only works out if the tax and admin side is actually handled.
The Tax Estimate Calculator breaks self-employment tax and income tax into the four quarterly payments the IRS expects from 1099 income.
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