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Understanding your pay

What's on your paycheck, explained: gross vs. net, the taxes withheld, pre- and post-tax deductions, and your W-4 and W-2.

13 articles

Gross pay vs. net pay: where the rest of your money goes

Gross pay is what you earn; net pay is what lands in your bank. Here's every tax and deduction that sits in between, with a worked 2026 example.

How to read your paystub, line by line

What every section of a Payrollix paystub means — Earnings, Taxes, Deductions, Net Pay — and why the YTD column is the one to watch.

Federal income tax withholding: why it changes and why it's just an estimate

The federal income tax on your paystub is a prepayment toward your annual tax bill, not the bill itself. Here's what moves the number and how it differs from FICA.

Pre-tax vs. post-tax deductions, and why the order matters

Pre-tax deductions come out before your taxes are calculated, so they shrink your taxable wages. Here's which deductions are which, and exactly which taxes each one lowers.

State income tax: why some paychecks have it and some don't

Nine states take no income tax from your wages at all. Here's why your stub may or may not have a state tax line, and how work-state vs. home-state withholding works.

Employer-paid payroll taxes: the ones you don't pay

Your employer pays a whole set of payroll taxes on top of your wages that never touch your check or your paystub. Here's what they are and why they aren't your bill.

How to fill out your W-4

The current W-4 has no allowances — here's how the post-2020 form actually works, field by field.

Adjust your tax withholding

If your refund is huge or you owed at tax time, here's which W-4 levers change how much comes out of each check.

What is a W-2?

Your W-2 is the year-end summary of what you earned and what was withheld — here's when you get it and what the key boxes mean.

Why your W-2 Box 1 is lower than your gross pay

Pre-tax deductions like 401(k) and health premiums shrink Box 1 — and Boxes 3 and 5 can be different again. Here's the reasoning.

How your tips are taxed

Reported tips are taxable wages subject to Social Security, Medicare, and income tax, which is why a tip-heavy check can show large withholding against small cash wages.

Moving to another state mid-year

What changes for your paycheck and taxes when you move states partway through the year — and why updating your address matters.

Update your W-4 after marriage or a new child

Life events like marriage, a new baby, or a second job change what you owe — and your W-4 should change with them.