About
About NetPay Pro
A small, independent reference site for US pay and tax questions. Built and maintained by one person, funded by advertising only.
What this site is
NetPay Pro publishes calculators and plain-English explanations about how much of a salary a worker in the United States actually keeps. The focus is deliberately narrow: paychecks, withholding, and the deductions that sit between gross pay and net pay. Narrow scope is a quality decision. It means every page can be checked against a primary source rather than assembled from secondary summaries.
How the calculators work
All calculations run in your browser. No salary figure you type is transmitted to a server, stored or logged. The logic is written against published parameters for a specific tax year, and each tool states that year on the page so you can tell whether it reflects current law.
Federal income tax uses the statutory marginal schedule. Payroll taxes use the Social Security wage base published by the Social Security Administration and the Medicare rates published by the IRS. State tax is where precision gives way to practicality: rather than model fifty separate statutory schedules, the calculator applies an editable effective rate, defaults it from a state table, and states plainly that the state line is an estimate.
Where the numbers come from
- IRS Publication 15 (Circular E) — withholding rates and wage bases
- IRS annual inflation adjustment announcements — brackets and standard deduction
- IRS Publication 505 — withholding and estimated tax guidance
- Social Security Administration — contribution and benefit base
- Congressional Research Service — historical bracket tables
Each calculator and guide lists its sources at the bottom of the page. Where a figure is an assumption rather than a published parameter, the page says so.
Editorial standards
Three rules apply to everything published here. First, no number appears without a source that can be checked. Second, limitations are stated on the page, not buried. Third, if a reader reports an error and it holds up, the correction is made and the page's modification date changes.
Content is not generated in bulk and published unreviewed. Pages are added one at a time because each one needs its own parameter check against the current tax year.
How the site is funded
Advertising. Display ads appear on some pages, and they are placed outside the calculator panel so a result is never covered or pushed away by an ad loading late. There are no paid placements, no sponsored rankings and no affiliate recommendations inside tool output. If that ever changes, the page will say so explicitly.
What this site is not
NetPay Pro is not a tax preparer, an accounting firm or a financial adviser, and nothing here is tax, legal or investment advice. The calculators produce planning estimates. Your employer's withholding depends on the Form W-4 you filed, and your actual liability depends on your full return.
Contact
Corrections, questions and source suggestions are welcome — see the contact page.