How to Read a Pay Stub: Every Line Item Explained

Derek Okafor is 27 years old, a project coordinator in Atlanta making $62,000 a year. His biweekly gross pay is $2,384.62. His direct deposit hits his account at $1,742.11. That's a difference of $642.51 per paycheck — money he's earning but not seeing. For the first two years at his job, Derek couldn't explain where exactly that $642.51 was going. He knew "taxes and stuff" but couldn't account for the breakdown. If you've ever felt the same way, this guide is for you.

Gross Pay: Where It All Starts

The top of every pay stub shows your gross pay — the amount you earned before anything is taken out. For Derek, that's $2,384.62 per pay period. This number comes directly from his salary ($62,000 / 26 biweekly pay periods = $2,384.62). If you're hourly, it's your rate multiplied by hours worked. If you received overtime, bonuses, or commissions, those show as separate line items that add to gross pay.

Gross pay is the number your employer reports to the IRS, the number used to calculate your Social Security and Medicare taxes, and the number referenced in most financial contexts — including loan applications and benefits enrollment. When someone asks what you make, gross pay is the honest answer, even though it's not what actually hits your bank account. The Salary Calculator uses gross pay as its input and shows you the full deduction breakdown from there.

Federal Income Tax Withholding

The largest deduction on most pay stubs is federal income tax. But here's the thing: this isn't the same as the tax you actually owe. It's an estimate — a payment toward your eventual tax liability. How much is withheld depends on what you entered on your W-4 form when you started the job.

For Derek, federal withholding is $258 per paycheck, or $6,708 annually. His actual 2025 federal tax liability will be calculated when he files his return in April. If his employer withheld too much (common when people don't update their W-4 after life changes), he gets a refund. Too little, and he owes money. The withholding formula uses tax tables published by the IRS, accounting for your filing status (single, married, head of household) and any additional withholding you've requested. If you want to understand how your withholding maps to your actual tax bracket, the Income Tax Calculator shows the full picture.

FICA: Social Security and Medicare

Two lines on every pay stub are non-negotiable. Social Security tax is withheld at 6.2% of your gross wages up to an annual cap — in 2025, that cap is $176,100. Medicare tax is withheld at 1.45% of all wages, with an additional 0.9% surcharge for high earners above $200,000. Together, these make up FICA — the Federal Insurance Contributions Act taxes.

For Derek: 6.2% of $2,384.62 = $147.85 for Social Security, and 1.45% of $2,384.62 = $34.58 for Medicare. Combined FICA: $182.43 per paycheck. Annualized: $4,743. Your employer matches your FICA contribution dollar for dollar — they pay another $4,743 on your behalf that never appears on your pay stub at all. It's a tax on your employer for employing you, invisible to you but very real. This is one reason why the total cost of employing someone is always higher than their stated salary.

State and Local Income Tax

If you live in one of the 41 states with a state income tax, you'll see a separate line for state withholding. Rates vary dramatically: flat rates like Illinois at 4.95%, graduated rates like California that top out above 13%, and no state tax at all in Florida, Texas, Nevada, Washington, and a handful of others. Georgia, where Derek lives, has a 5.49% individual income tax rate.

For Derek, state withholding is roughly $131 per paycheck. Some cities also levy local income taxes — New York City charges an additional 3.078% to 3.876% depending on income. Philadelphia charges 3.79% for residents. These local taxes are separate lines below state tax on your pay stub. If you're confused by your take-home after moving to a new state or city, the Hourly to Salary Calculator helps model how different state rates affect your net pay.

Pre-Tax Benefits: The Deductions That Actually Help You

Here's the part most people don't fully appreciate. Certain deductions come out before your taxes are calculated, which means they reduce your taxable income and effectively lower your tax bill. These are called pre-tax deductions.

The most common: 401(k) contributions, health insurance premiums (under most employer plans), HSA contributions, and FSA contributions. Derek contributes 6% to his 401(k), which is $143.08 per paycheck. This money leaves his check before federal and state taxes are applied, meaning he saves roughly $38 in taxes per paycheck on that contribution alone — beyond the retirement savings themselves. His health insurance premium runs $97.50 biweekly, also pre-tax. Together, these two pre-tax deductions reduce his taxable income by $240.58 per paycheck, saving him approximately $64 in taxes every two weeks.

Why does this matter? Because the true cost of a 401(k) contribution isn't the full $143 — it's roughly $105 after the tax savings. The government is essentially subsidizing a portion of your retirement savings through the tax treatment.

Post-Tax Deductions: What's Left Over

Post-tax deductions come out after taxes are calculated. They don't reduce your tax bill, but they still reduce your net pay. Common post-tax deductions include Roth 401(k) contributions (taxed now, tax-free later), life insurance premiums above certain limits, disability insurance in some plans, union dues, and voluntary benefits like pet insurance or legal plans.

These are often smaller line items, but they add up. Derek has a $14.50 post-tax life insurance premium and a $22 voluntary short-term disability premium. Not huge. But visible. The distinction between pre-tax and post-tax deductions matters when you're doing financial planning — pre-tax contributions lower your adjusted gross income for the year, which can affect eligibility for tax credits and deductions. Your Retirement Contribution Calculator can help model the long-term value of pre-tax vs. Roth contributions.

Net Pay: Your Actual Take-Home

Net pay is what hits your bank account. For Derek: $2,384.62 gross minus $258 federal, $131 state, $182.43 FICA, $143.08 pre-tax 401(k), $97.50 pre-tax health, $14.50 post-tax life insurance, $22 post-tax disability. Total deductions: $848.51. Wait — that's more than the $642.51 gap mentioned at the start? Right: some of those deductions (the 401(k) and benefits) are actually going to Derek's accounts or protecting him, not disappearing. His net cash in hand is $1,742.11, but his total compensation picture includes the retirement savings and benefits too.

This is the mental shift that makes pay stubs less depressing to read. Not every line that reduces your direct deposit is money lost. The 401(k) deduction is yours. The health premium is buying coverage you'd have to pay for otherwise. The deductions that genuinely leave your hands are the taxes — and even those are funding future Social Security benefits.

Reading Your Year-to-Date Totals

The right side of most pay stubs shows year-to-date (YTD) figures — cumulative totals for the calendar year. This is useful for tax planning. Before December 31, check your YTD federal and state withholding against an estimate of your actual liability using the Income Tax Calculator. If your YTD withholding looks way above your projected liability, you might update your W-4 to reduce withholding and get more cash in each paycheck instead of waiting for a refund. If it looks low, add extra withholding now to avoid an April surprise.

The YTD gross wages figure is also what your W-2 will reflect come January. Cross-check it for accuracy — payroll errors exist, and the employer's year-end statement is what goes to the IRS.

What to Do If Something Looks Wrong

Payroll errors happen. Transposition errors, benefit premium changes not processed correctly, overtime miscalculated — any of these can appear on a pay stub without being caught automatically. Review each pay stub when it arrives, comparing the current gross pay to what you expect, and checking that deduction line items haven't changed unexpectedly. If something looks off, bring the specific line item to HR or payroll with the relevant dates. Most errors are fixable, and most payroll departments will correct and catch up a missed payment in the next cycle.

Understanding your pay stub doesn't take an accounting degree. It takes about 10 minutes of focused attention applied once. Derek now takes 90 seconds to glance at his when each paycheck posts. He knows what's there. And that $642.51 "disappearance" — he now knows exactly where it went.