A simple, line-by-line guide to your US pay stub: gross pay vs net pay, federal withholding, FICA, state tax, pre-tax deductions, and the YTD totals that help you catch payroll mistakes fast.
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Quick Summary
- Gross pay is what you earned. Net pay is what hits your bank account.
- Most workers pay 7.65% in FICA on wages (Social Security 6.2% + Medicare 1.45%).
- Your pay stub’s YTD column is how you spot payroll mistakes — especially around the $176,100 Social Security wage cap.
- Want a fast reality check? Run your numbers in our calculator for Texas or California and compare to your stub.
If you’re an immigrant worker — or honestly any worker — the first few US pay stubs can feel like alphabet soup. Random acronyms, tiny columns, and deductions you didn’t expect.
Good news: once you know what to look for, your pay stub becomes a tool. It helps you answer two important questions fast: “Where did my money go?” and “Is payroll doing this correctly?”
The “anatomy” of a US pay stub (what sections to look for)
Every payroll system formats pay stubs differently, but most include the same blocks:
| Section | What it shows | Why it matters |
|---|---|---|
| Earnings | Hours × rate, salary, overtime, bonuses, tips | Confirms you were paid correctly for your work |
| Taxes | Federal withholding, Social Security, Medicare, state tax (maybe local) | Explains why net pay is lower than gross pay |
| Pre-tax deductions | 401(k), health insurance, HSA/FSA (varies) | These lower your taxable income (often a hidden win) |
| Post-tax deductions | Roth 401(k), wage garnishments, some union dues | These reduce net pay but don’t lower your taxes |
| YTD totals | Year-to-date earnings and deductions | The best “sanity check” column for catching errors |
💡 Action Tip
Save at least your last two pay stubs. When something changes (a raise, a new benefit, a new W-4), comparing “before vs after” makes problems obvious.
Gross pay vs. net pay (with a realistic example)
Gross pay is your pay before anything is removed. Net pay is the amount you actually receive.
Here’s a realistic example: a worker earns $25/hour and works 80 hours in a biweekly pay period.
| Item | Amount |
|---|---|
| Gross pay | $2,000.00 |
| FICA (7.65%) | $153.00 |
| Federal withholding (example) | $140.00 |
| State withholding (example) | $60.00 |
| Health insurance (pre-tax example) | $85.00 |
| Net pay (example) | $1,562.00 |
📊 Key Number
In this example, taxes + deductions are $438, so net pay is about 78% of gross pay for the period.
Your exact numbers will differ based on your filing status, benefits, and state — but the pattern stays the same.
Taxes withheld: federal, FICA, and state
This is where most of the “Where did my money go?” confusion lives.
Federal income tax withholding
Your employer estimates what you’ll owe for the year and withholds a portion each paycheck. The biggest inputs are your W-4, your pay frequency, and your income.
⚠️ Heads Up
A refund isn’t “free money.” A big refund often means you over-withheld — you gave the IRS an interest-free loan all year.
FICA: Social Security and Medicare (never skip this line)
FICA is a fixed percentage for most workers:
| Tax | Employee rate | Limit | What it funds |
|---|---|---|---|
| Social Security | 6.2% | Stops after $176,100 of wages (2025 wage base) | Social Security benefits |
| Medicare | 1.45% | No cap for most workers | Medicare health coverage |
| Total FICA | 7.65% | — | — |
Your employer matches these taxes. You only see your half on the pay stub, but the total paid to the government is double.
State income tax (and why Texas looks “weird”)
If you work in a no-income-tax state, your pay stub may show $0 state income tax. That’s normal. Compare a no-tax state like Texas to a higher-tax state like California and you’ll see the difference immediately.
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Pre-tax deductions (the ones that lower your taxable income)
Pre-tax deductions come out before taxes are calculated. That means they reduce your taxable income — so the “real” cost in take-home pay is smaller than the deduction amount.
| Common pre-tax item | Why it shows up | Typical impact |
|---|---|---|
| Traditional 401(k) | Retirement savings | Lowers federal (and often state) taxable income |
| Health insurance premium | Your share of employer coverage | Often pre-tax (check your plan) |
| HSA / FSA | Medical savings/spending | Pre-tax if eligible |
💡 Action Tip
If your employer offers a 401(k) match, try to contribute at least enough to get the full match. That’s one of the few times in life you get a guaranteed return.
YTD totals and the Social Security wage cap
YTD means “year to date.” It’s the running total from January 1 through your current paycheck.
The single most useful YTD check is Social Security. In 2025, Social Security withholding stops once your YTD wages reach $176,100. After that, your net pay usually increases because that 6.2% is no longer withheld.
📊 Key Number
Once you hit the Social Security wage base, your paycheck can jump by about 6.2% (before other changes) for the rest of the year.
Common pay stub problems (and how to fix them)
Most pay stub mistakes fall into a few buckets:
- Wrong hours or rate. Happens a lot with shift changes, overtime, or new roles.
- Missing or duplicated benefit deductions. Common during open enrollment or when switching health plans.
- State tax mismatch. You moved, you work remotely, or payroll used the wrong work state.
- Withholding shock after a bonus. Bonuses often use a different withholding method than regular wages.
⚠️ Heads Up
If something looks wrong, don’t wait until the end of the year. A small mistake repeated over 26 paychecks becomes an expensive problem.
How to put this to work (3 quick checks every pay period)
1) Check earnings first. Hours, rate, overtime. If the earnings section is wrong, everything else will look wrong too.
2) Compare taxes to a quick estimate. Use our calculator for your state (for example Texas or California). If the difference is huge, your W-4 or state setup may be off.
3) Scan YTD totals. Look for weird jumps, missing 401(k) contributions, or Social Security withholding continuing past the wage base cap.
If you want, copy your numbers into our paycheck calculator and keep it bookmarked. It’s the fastest way to sanity-check a new job, a raise, overtime, or a benefits change.
📋 Disclaimer
The numbers in this guide are estimates based on 2025 federal tax rates for illustrative purposes. Individual tax situations vary based on filing status, deductions, credits, and other factors. We are not accountants or tax advisors. Please consult a qualified tax professional before making financial decisions.
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