How we calculate · Paycheck
How the paycheck calculator works
Clear arithmetic for learning—not IRS tables or payroll software.
Tool: Paycheck calculator · Embed · All how-we-calculate pages · Questions
Purpose
Estimate gross pay per paycheck and a rough take-home amount using a tax percent you type. For education only—not a W-2, pay stub, or tax return.
Gross pay
- Annual mode: annual salary you enter
- Hourly mode: hourly rate × hours/week × weeks/year
- Gross per check = annual gross ÷ periods per year
- Weekly 52 · Biweekly 26 · Semi-monthly 24 · Monthly 12
Take-home path (model)
- Start with gross per check
- Subtract pre-tax deduction $ (capped at gross)
- Apply tax % to remaining “taxable” amount in the model
- Subtract post-tax deduction $
- Remainder = estimated net per check
What we intentionally leave out
- Automatic IRS Publication 15-T wage-bracket or percentage methods
- State or local tax tables by ZIP code
- FICA/Medicare as separate fixed statutes (you may fold them into your combined %)
- W-4 steps, multiple jobs, or year-to-date reconciliation
- Employer benefits eligibility or legal advice
Official federal context
Employers use methods in IRS Publication 15-T for federal income tax withholding. Nestfigure does not implement those tables.
Last reviewed: August 9, 2026.
YMYL notice: This site is for education only. It is not financial, tax, or investment advice. Nestfigure is not a bank, credit union, broker, investment adviser, or fiduciary. Product terms, rates, and penalties vary—always read your institution’s disclosures before acting. Calculator results are mathematical estimates, not bank quotes.