Briefbox is an instant W-2 vs 1099 take-home calculator for 2026 US federal numbers. Enter gross pay, filing status, and 1099 expenses. The W-2 side is free. Pay $5 once to unlock 1099 take-home, the gap, and quarterly self-employment tax estimates. Uses IRS Rev. Proc. 2025-32 brackets and the $184,500 Social Security wage base. Federal estimates only; state tax omitted. Not tax advice.
People comparing a W-2 offer with 1099/contract pay need the self-employment tax gap in seconds. This $5 instant calculator uses 2026 IRS brackets so they don't wait on a custom brief.