W-2 vs 1099: What Actually Changes in Your Tax Bill

Switching from W-2 to 1099 does not change the ordinary income brackets. It changes who pays Social Security and Medicare, whether expenses land on Schedule C, and whether you must send estimated payments yourself. For 2026 offers, compare cash flow on a full-year basis — not a single paycheck screenshot.

Employees split FICA with the employer. Independent contractors pay self-employment tax on net earnings (Social Security and Medicare equivalents on 92.35% of net SE income, subject to the wage base), then still owe income tax on profit. A 30% “set aside” rule of thumb is a cash-flow reserve, not a statutory rate.

Deductions and benefits

Contractors can deduct ordinary and necessary business expenses on Schedule C. Employees generally cannot deduct unreimbursed job costs after TCJA suspensions. Health insurance, retirement plan design, and unemployment coverage also diverge — W-2 packages often include employer benefits that a 1099 rate must replace in the sticker price.

Home office, mileage, and equipment rules are stricter than water-cooler folklore. Keep contemporaneous records; a higher contractor rate that cannot support documentation is not a free raise.

Withholding vs estimates

W-2 withholding is automatic if your W-4 is close. 1099 income usually has no federal withholding, so safe-harbor estimated payments matter. Underpayment penalties attach to the calendar of quarterly due dates, not to April 15 alone.

State income tax and local taxes may still apply to contractors. Some clients withhold state tax on 1099 payments; many do not. Model federal SE tax first, then layer state estimates.

How to compare an offer

Translate the contractor rate into expected net after SE tax, income tax, health premiums, and retirement contributions you now fund alone. Compare that to W-2 net from the paycheck calculator. Use the W-2 vs 1099 calculator, then size quarterly estimates before you accept a rate that only matches your old salary on paper.