About TakeHome IQ

Built to match your actual paycheck — line by line.

TakeHome IQ calculates withholding the way payroll software does — IRS Publication 15-T, Worksheet 1A, line by line. Federal taxes annualize your wages, apply your W-4 elections, look up the bracket, and de-annualize. FICA caps at the Social Security wage base. State withholding follows each state’s published guide. Every number on every screen comes from code that mirrors the worksheets your employer’s payroll system runs.

I’m Lionel. I built TakeHome IQ because my own pay isn’t the same week to week — shifts, overtime, sometimes a swap with another mechanic. I’m not a CPA. What I do is read the IRS publications, follow the math line by line, and cite every source on the methodology page so anyone can check any number the app produces. If you spot something wrong, email me. I read every email.

What this is built on

• Built to IRS Pub 15-T spec. Worksheet 1A federal withholding, FICA, supplemental wage rules. Read the methodology.
• Verified for tax year 2026. Federal and state tables refreshed each January when the IRS and state DORs publish updates.
• Methodology and sources public. Every calculation traces to a published IRS or state withholding guide. No black boxes.

Contact

Questions, corrections, or stub mismatches: support@takehomeiq.com.