How to Read Your Pay Stub — Every Line Explained (2026)

Most people glance at net pay and ignore everything else — which is a mistake. Every other line is either money you can reduce, money you can shift to pre-tax, or an error waiting to be caught. This guide walks through every section of a US pay stub and what you can actually do about each one.

Plain English: What Is a Pay Stub and Why Does It Matter?

A pay stub (also called a payslip or earnings statement) is the document you get with every paycheck that shows the math: what you earned, what was taken out, and what you actually received.

Think of it like a receipt for your paycheck. Your bank shows you the final deposit, but your pay stub shows you why the number is what it is.

Here's a super-simple version of what every pay stub shows:

• Gross Pay = what your employer agreed to pay you (your salary ÷ pay periods, or hours worked × hourly rate). This is the "before taxes" number.
• Deductions = money taken out before you see it. This includes federal tax, Social Security, Medicare, state tax, and anything you chose (like 401k contributions or health insurance).
• Net Pay = what actually lands in your bank account. Gross Pay minus all Deductions. This is the number that matters for your day-to-day life.

Why bother looking at it? Because payroll errors happen. You might be paying too much in taxes, having the wrong state deducted, or missing a 401k contribution you set up. Taking 2 minutes to scan your stub every few months can catch mistakes worth hundreds or even thousands of dollars.

Every Pay Stub Line at a Glance

Pay Period vs. Year-to-Date (YTD)

Most pay stubs show two columns: current period and YTD totals. YTD is critical for tracking caps — like Social Security stopping at $184,500 — and making sure annual withholding is on track.

• Biweekly (26/yr) — Most common. Two months/year have 3 paychecks.
• Semi-monthly (24/yr) — 1st and 15th, or 15th and last day.
• Monthly (12/yr) — Common in academia and some professional roles.
• Weekly (52/yr) — Common for hourly workers.

Gross Pay

Your total earnings before any deductions. For salaried workers: annual salary ÷ pay periods. Always verify this matches what you're owed — payroll errors happen.

Federal Income Tax Withheld

Based on your W-4. The W-4 was redesigned in 2020 — if yours is older, withholding may be off. Under-withholding means a tax bill in April. Over-withholding means a refund (an interest-free loan to the IRS). Update your W-4 after marriage, divorce, new dependents, or a significant raise.

Social Security (6.2%) and Medicare (1.45%)

Social Security applies only to the first $184,500 of wages in 2026. Once your YTD hits that cap, the deduction stops — you'll notice a larger paycheck in Q4. Medicare has no cap; earners over $200,000 (single) pay an extra 0.9%.

State Income Tax

Nine states have none: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, Wyoming. If you recently moved states, verify your employer updated state withholding — it's one of the most common payroll errors.

Pre-Tax Deductions — How Much They Actually Save You

Pre-tax deductions reduce taxable income before taxes are calculated. Items marked FICA-exempt also avoid the 7.65% employee FICA tax. Here's the real dollar saving at three salary levels (California single filer, 2026 brackets):

Savings = federal + CA state income tax + FICA (where applicable). Use the calculator for your state and salary.

Post-Tax Deductions

These don't reduce taxable income but still appear on your stub:

• Roth 401(k) — Post-tax now, tax-free in retirement. Better if you expect a higher bracket later.
• Life insurance above $50k — Employer-paid coverage above $50k is a taxable benefit ("Imputed Income").
• Wage garnishments — Child support, student loans, court orders.
• Union dues — If applicable.

Common Errors to Check Every Few Months

• After a raise — New gross should appear the following pay period.
• After moving states — State withholding must update or you'll owe in both states.
• After open enrollment — Benefit deductions should update in January.
• After changing 401k % — Verify the contribution matches your election.
• Mid-year Social Security cap — Deduction should stop once YTD hits $184,500. If it doesn't, flag HR.

Frequently Asked Questions

How to Spot and Fix Pay Stub Errors

Payroll errors happen more often than most workers realize — and they're almost always in the employer's favor. Here's what to look for and how to get it fixed:

How to fix an error: Contact your HR or payroll department in writing (email is best for paper trail). Request a corrected pay stub and ask whether an off-cycle correction will be issued or if the correction will appear in the next regular paycheck. For year-end corrections, request a corrected W-2 (W-2c) before filing your taxes.

Year-End Tax Planning Using Your Pay Stub

Your pay stub is a live preview of your tax return. Here's how to use your November or early December stub to plan before December 31st:

• Check YTD federal withholding: Use the IRS withholding estimator or last year's tax bill to estimate if you're on track. If you're under-withheld, you can request extra withholding on your W-4 for the final pay periods of the year.
• Boost your 401(k) before year-end: The 2026 limit is $23,500 ($31,000 if 50+). If you haven't hit it and can afford to, increasing your contribution rate for the last 2–3 pay periods can reduce your taxable income before December 31st — saving you real money on your tax return.
• Fund your FSA by December 31: Healthcare FSAs are use-it-or-lose-it (with some grace periods). If your YTD FSA spending is below your election, check your plan's deadline for eligible expense submissions.
• Understand your effective tax rate: Divide YTD federal income tax by YTD gross income. If this is lower than your marginal rate, you may owe at filing. If it's higher, expect a refund. A 3–5% gap either way is normal.

Pay Stub Differences: Hourly vs Salaried Workers

Hourly and salaried workers' pay stubs look different and have key distinctions worth understanding:

What a Complete, Correct Pay Stub Should Show

A well-formatted pay stub includes all of these elements. If yours is missing any, it may indicate a payroll system limitation — but you're still entitled to all this information from your employer:

• Employee name, ID, and pay period dates (start and end)
• Gross earnings — regular, overtime, bonuses, reimbursements (listed separately)
• Pre-tax deductions listed individually (401k, health insurance, HSA, FSA, commuter benefit)
• Federal income tax withheld (current period + YTD)
• Social Security tax (6.2%, current + YTD)
• Medicare tax (1.45%, current + YTD)
• State income tax withheld (current + YTD) — or a $0 line if in a no-tax state
• Post-tax deductions (Roth 401k, life insurance, garnishments if any)
• Net pay (what deposited to your bank)
• YTD totals for every line item above

References