How to Read a Pay Stub: Every Line Explained

Why Your Pay Stub Is One of the Most Important Documents You Own

Most people glance at their pay stub just long enough to confirm the deposit amount matches what hit their bank account. If it does, they move on. If it doesn't, panic sets in. Either way, the majority of what's printed on that slip of paper stays a mystery.

That's a problem — because your pay stub is a live, real-time snapshot of your financial life. It tells you exactly how much you're earning, how much the government is taking, what your employer is contributing on your behalf, and what's being set aside for your future. Understanding it isn't just helpful — it's foundational to making good money decisions.

Whether you just landed your first job, recently got a raise, or changed employers and noticed your take-home pay shifted for no obvious reason, this guide walks through every single line. No jargon. No glossing over the confusing parts.

Let's get into it.

The Big Picture: Gross Pay vs. Net Pay

Before you can read the individual lines, you need to understand the arc of a pay stub. Everything on it is telling you one story: you earned X, and here's where it all went before you saw a dollar of it.

Gross pay is what you actually earned during the pay period — before any taxes or deductions. If your salary is $60,000 per year and you're paid bi-weekly (26 times per year), your gross pay per check is $2,307.69.

Net pay is what lands in your bank account. It's gross pay minus everything else. Most people call this "take-home pay," and for good reason — it's the only number that actually comes home with you.

The gap between those two numbers is what this article is about. For most American workers, that gap is substantial — often 25% to 40% of gross pay. Understanding where it goes puts you in control.

A Real Example We'll Use Throughout This Guide

Let's follow a single employee — we'll call her Maya — through her bi-weekly pay stub. Maya is a 32-year-old marketing manager in Illinois, earning $72,000 per year. She contributes to her 401(k), pays for employer-sponsored health insurance, and filed her W-4 as single with no dependents.

Here's her pay stub at a glance:

Maya earns $2,769.23 per check but takes home $1,831.70. That's $937.53 — or about 34% of her gross — going somewhere other than her bank account. Let's break down exactly where.

The Earnings Section: What You Made

The top of your pay stub shows what you earned. For salaried employees like Maya, this is straightforward: your annual salary divided by your number of pay periods. But there's often more than one line here.

Regular Pay

This is your base compensation for the pay period. For hourly workers, it's your hourly rate multiplied by the hours worked. For salaried workers, it's your fixed amount per period. Always verify this number. Payroll mistakes are more common than people think, and errors tend to repeat until you catch them.

Overtime Pay

If you're a non-exempt hourly employee and worked more than 40 hours in a week, federal law (the Fair Labor Standards Act) requires your employer to pay at least 1.5x your regular rate for those extra hours. Your pay stub will usually list this separately. If you worked overtime and don't see an OT line, ask HR — you may be owed money.

Bonuses and Commissions

These appear as separate line items in the earnings section. Note that bonuses are typically taxed differently than regular wages — employers often withhold a flat 22% federal rate on supplemental income for amounts under $1 million. This can lead to a larger-than-expected tax bite on your bonus check, though you'll square up when you file your annual return.

Other Earnings

You might also see lines for holiday pay, paid time off (PTO) payouts, shift differentials, or reimbursements. Reimbursements (like mileage or expense repayment) should generally not be taxed, so if you see reimbursements flowing through with tax withholding applied, flag it with payroll.

Year-to-Date (YTD)

This column is one of the most useful things on your pay stub. It shows cumulative totals since January 1st (or whenever your employer's fiscal year starts). Use it to quickly verify your total earnings, track how much you've contributed to retirement accounts, and prepare for tax season. The YTD figures on your last pay stub of the year should closely match the boxes on your W-2.

Pre-Tax Deductions: The Money That Reduces Your Taxable Income

Here's where a lot of people's eyes glaze over — but this section is where smart financial decisions pay off literally. Pre-tax deductions come out of your gross pay before taxes are calculated. That means every dollar you put here reduces the amount of income you're taxed on. It's one of the most accessible tax advantages available to working Americans.

401(k) or 403(b) Retirement Contributions

Maya contributes 6% of her gross pay ($166.15 per check) to her 401(k). This reduces her taxable income for that pay period from $2,769.23 down to $2,603.08 before other deductions. Over a full year, her $4,323.90 in 401(k) contributions saves her roughly $475 in federal taxes alone — and that money is growing tax-deferred in her retirement account.

In 2025, the IRS allows workers under 50 to contribute up to $23,500 to a 401(k). If you're not contributing at least enough to capture your employer's full match, you're leaving free money on the table. That match is part of your compensation — if you don't take it, you don't get it.

If you want to see how a raise might accelerate your retirement savings, the PocketWise raise calculator can model exactly that.

Health Insurance Premiums

Most employer-sponsored health plans are set up under a Section 125 "cafeteria plan," which means your premium contributions come out pre-tax. Maya pays $120 for medical, $14 for dental, and $6 for vision — totaling $140 per pay period, or $3,640 per year in pre-tax health spending.

If you ever leave a job and have to pay for COBRA or an individual health plan with after-tax dollars, you'll immediately feel the difference. A $500/month premium that was pre-tax is meaningfully cheaper than one you pay out-of-pocket.

FSA and HSA Contributions

If Maya enrolled in a Health Savings Account (HSA) or Flexible Spending Account (FSA), those contributions would also appear here as pre-tax deductions. HSAs are particularly powerful: contributions are pre-tax, growth is tax-free, and withdrawals for qualified medical expenses are also tax-free — a rare triple tax advantage. In 2025, HSA contribution limits are $4,300 for individuals and $8,550 for families.

Commuter Benefits

Employer-sponsored commuter benefit programs let you set aside pre-tax money for transit passes or parking. The monthly limit in 2025 is $325 for transit and $325 for parking. If you commute via subway or bus, this can add up to real savings over the course of a year.

Why This Section Matters

Every dollar in pre-tax deductions reduces your "taxable wages" — the number the IRS actually taxes you on. If you're trying to lower your tax bill, maximizing these accounts (especially retirement contributions and HSA) is usually the most straightforward path available to W-2 employees.

Taxes: The Lines That Confuse Everyone

After pre-tax deductions, the pay stub calculates your taxes. This is typically the largest chunk of what separates gross from net pay. Here's what each line means.

Federal Income Tax

This is withheld based on your W-4 form, your filing status, and the IRS withholding tables. Maya's $282.46 federal withholding is an estimate — the IRS won't know her exact liability until she files her return. If too much is withheld throughout the year, she gets a refund. If too little is withheld, she owes.

The most common reason for a surprise tax bill in April is a life change that wasn't reflected in an updated W-4: a second job, significant freelance income, a divorce, or a major investment gain. If your life changes, update your W-4. The IRS has a withholding estimator tool that helps you dial in the right number.

Social Security Tax (FICA)

This is a flat 6.2% of your gross wages, up to the Social Security wage base — which is $176,100 in 2025. Once your YTD earnings cross that threshold, Social Security withholding stops for the rest of the year. Your employer matches this 6.2%, for a total contribution of 12.4% to Social Security on your behalf.

For Maya, 6.2% of $2,769.23 is $171.69 per check. Over a full year, she'll contribute about $4,464 to Social Security — and her employer will kick in another $4,464.

Medicare Tax (FICA)

Medicare is withheld at 1.45% of gross wages, with no income cap. High earners (above $200,000 for single filers) pay an additional 0.9% — the Additional Medicare Tax. Like Social Security, your employer matches the base 1.45%.

Together, Social Security and Medicare are called FICA taxes. For most employees, FICA adds up to 7.65% of gross pay on their side alone.

State and Local Income Tax

Nine states have no income tax: Alaska, Florida, Nevada, New Hampshire (on wages), South Dakota, Tennessee (on wages), Texas, Washington, and Wyoming. Everyone else sees a state tax line. Maya lives in Illinois, which has a flat 4.95% income tax, making her state line easy to calculate: $2,769.23 × 4.95% = $137.08.

Some cities and counties also levy local income taxes. If you live in New York City, Philadelphia, or certain Ohio cities, you'll see an additional local tax line. If you work in a different city than where you live, you might see two local tax lines — and it's worth understanding whether you're being double-taxed and whether your state offers a reciprocity agreement or credit.

One Important Thing About Federal Tax Withholding

Federal income tax uses a progressive bracket system — you pay a lower rate on lower income and a higher rate as income increases. But your pay stub doesn't calculate it this way in real time. Your employer's payroll system annualizes your income and estimates your full-year liability based on your W-4. This means someone who starts a job mid-year might see very low withholding because the annualized income projection falls in a low bracket.

If you have freelance income, rental income, or significant investment gains, that W-2 withholding probably isn't covering your full tax bill. You may need to make quarterly estimated tax payments. More on that in our side hustle tax guide.

Post-Tax Deductions and Employer Contributions: What's Left on the Stub

Some deductions come out after taxes are calculated. These don't reduce your taxable income, but they still reduce your net pay. Common examples include:

• Roth 401(k) contributions: Unlike traditional 401(k), Roth contributions are post-tax. You don't get a current-year deduction, but qualified withdrawals in retirement are tax-free.
• Life insurance premiums over $50,000: Employer-provided life insurance above $50,000 creates imputed income — you'll see a small addition to taxable wages and a corresponding deduction.
• Garnishments: Court-ordered wage garnishments for child support, student loan defaults, or creditor judgments appear as post-tax deductions. If you see one of these and it's unexpected, that's a serious matter requiring immediate attention.
• Union dues
• Charitable contributions if your employer offers a payroll giving program

Employer Contributions — The Lines That Are About You But Aren't Your Money Yet

Many pay stubs include an informational section showing what your employer is contributing on your behalf. This doesn't affect your net pay, but it's worth understanding:

• Employer 401(k) match: If Maya's employer matches 50% of contributions up to 6%, that's an additional $83.08 per check going into her retirement account — money she didn't have to earn.
• Employer portion of health insurance: Employers often cover 70-80% of premium costs. If Maya's full medical plan costs $600/month and she pays $240 (her $120 × 2 paychecks), her employer is likely covering the other $360. That's a significant piece of compensation that doesn't show up in your salary but absolutely shows up in your total compensation picture.
• Employer FICA match: Your employer pays the same 7.65% FICA taxes that you do. It doesn't affect your paycheck, but it's real cost your employer bears on your behalf.

Understanding total compensation — not just base salary — matters a lot when comparing job offers. A role paying $5,000 less with better health coverage, a generous 401(k) match, and strong PTO may actually put more money in your pocket than the higher-paying offer with bare-bones benefits.

Common Pay Stub Problems and How to Catch Them

Payroll errors happen. The American Payroll Association estimates that 1-8% of payrolls contain errors. Most go uncorrected because employees never look closely enough to notice. Here's what to check:

Your Name and Social Security Number

It sounds basic, but verify your name is spelled correctly and your last four Social Security digits match. Errors here can cause problems with Social Security earnings credits and tax filings.

Your Pay Rate

After a raise or a promotion, confirm the new rate is reflected correctly. If you negotiated a $3/hour raise from $22 to $25, do the math: gross pay ÷ hours should equal $25. If it still shows $22, payroll didn't get the memo. Learning how to confidently negotiate that raise in the first place is a skill worth developing — the PocketWise salary negotiation guide walks through the whole process.

Your 401(k) Contribution Rate

If you recently changed your contribution percentage, verify it updated on the next check. Small errors here compound significantly over time. A 1% contribution change on a $72,000 salary is $720 per year — that's $720 not growing in your retirement account.

Tax Withholding After a Life Change

Got married? Had a baby? Started a side hustle? Moved to a different state? Each of these can meaningfully affect how much you should be withholding. The time to update your W-4 is when the change happens — not in April when you're staring at an unexpected tax bill.

Year-to-Date Accuracy

Cross-check your YTD earnings on your last December pay stub against Box 1 of your W-2. They won't be identical (Box 1 is adjusted for pre-tax benefits), but they should be close and reconcilable. Significant discrepancies are worth resolving before you file.

How Your Pay Stub Connects to Your Bigger Financial Picture

Your pay stub isn't just a receipt — it's a planning tool. Once you understand every line, you can use it to make better decisions about all the categories in your financial life.

Budgeting From Your Real Number

A lot of budget templates ask you to start with your income. Make sure you're using net pay — not gross. Maya earns $72,000 per year, but her take-home is closer to $47,600. A budget built on $72,000 would fail immediately. If you're looking for a framework that actually works with your real take-home, explore the different budgeting methods to find one that fits your situation.

Retirement Contributions and the Match

If you're not capturing your full employer 401(k) match, treat that as a financial emergency. It's the closest thing to a guaranteed 50-100% return on investment that exists. Once you've got the match, decisions about additional contributions, Roth vs. traditional, and other investment vehicles become relevant — the investing basics guide is a good next step.

Your Effective Tax Rate vs. Your Marginal Rate

Your marginal tax rate is the rate on your next dollar of income (the bracket you're in). Your effective rate is what you actually paid across all your income. Maya's marginal federal rate is 22%, but her effective federal rate is much lower because a large portion of her income is taxed at 10% and 12%. Both numbers matter, but confusing them leads to bad decisions — like avoiding a raise because "it'll put me in a higher bracket." The higher bracket only applies to the dollars above the threshold, not your entire income.

Quick Reference: Pay Stub Terms Glossary

The Bottom Line

Reading a pay stub is a skill that pays off every single paycheck. When you understand what each line means, you can catch errors before they compound, make smarter decisions about your benefit elections, plan more accurately, and advocate for yourself when something doesn't look right.

Maya's $937.53 gap between gross and net pay isn't money wasted — a large chunk of it is funding her retirement, her healthcare, and her Social Security record. But only because she set it up intentionally. Without that context, it just looks like money disappearing.

The next time your pay stub hits, take five minutes to read the whole thing. Not just the bottom line. The whole thing. It's one of the most useful five minutes you can spend on your finances.

You Might Also Enjoy

• Budgeting Methods That Actually Work: How to Find the Right Fit for Your Money — Now that you know your real take-home, build a budget that matches it.
• Investing Basics: Where to Put Your Money Once You've Maxed the Match — The 401(k) match is step one. Here's what comes next.
• Side Hustle Tax Guide: What to Know When You Have Income Outside Your W-2 — Freelance income changes your tax picture significantly. Know what to expect.
• How to Negotiate a Salary or Raise: A Real-World Guide That Works — Understanding your pay stub is step one. Increasing what's on it is step two.
• Raise Calculator — See exactly how a raise changes your take-home pay and retirement contributions.