How to Read a Pay Stub: Understanding Every Line of Your Paycheck

Most people glance at their pay stub to confirm the deposit amount and move on. But your pay stub contains important information about your tax withholding, benefits deductions, and year-to-date earnings — information that can affect your tax return, benefits eligibility, and financial planning. Understanding it takes about five minutes.

The Basic Structure #

Every pay stub, regardless of employer or payroll system, contains the same core sections:

1. Employee and employer information
2. Pay period dates
3. Earnings (gross pay)
4. Deductions (taxes and other withholding)
5. Net pay (what you actually receive)
6. Year-to-date (YTD) totals

Section 1: Your Information #

At the top you’ll typically find your name, employee ID, address, department, and sometimes your Social Security number (often partially masked). Below that is your pay period — the specific dates of work this paycheck covers — and the pay date (when the money arrives).

Section 2: Earnings #

Gross Pay is your total earnings before any deductions. If you’re salaried at $60,000 per year paid biweekly (26 pay periods), your gross pay per check would be $2,307.69.

Common earning types that may appear:

• Regular: Your standard wages for the period
• Overtime: Hours over 40/week at 1.5x your regular rate (federal law in the US)
• Holiday/PTO: Paid time off used during the period
• Bonus: Any bonuses paid in this period
• Commission: Sales-based earnings

Check that the hours match what you actually worked and that the rate is correct.

Section 3: Taxes (the Big Deductions) #

This section is where most of the confusion lives. You’ll see several taxes withheld:

Federal Income Tax #

Withheld based on your W-4 form you filled out when hired. The amount depends on your income, filing status (single, married, head of household), and any adjustments you claimed on the W-4. This is an estimate — at tax time, you’ll either get a refund (you overpaid) or owe (you underpaid).

State Income Tax #

If your state has income tax (Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming have none), a percentage is withheld. Rates vary significantly by state.

Social Security Tax (OASDI) #

A flat 6.2% of your gross wages, up to an annual wage cap (which adjusts yearly — around $168,000 in recent years). Your employer pays a matching 6.2%.

Medicare Tax (HI) #

A flat 1.45% of all wages — no cap. High earners (above $200,000 single / $250,000 married) pay an additional 0.9% Additional Medicare Tax.

FICA is a term that appears on some stubs — it stands for Federal Insurance Contributions Act and refers to Social Security and Medicare combined. Together they’re 7.65% of your gross pay.

Local/City Taxes #

Some cities and counties have their own income taxes (New York City, Philadelphia, Denver, etc.). These appear as a separate line.

Section 4: Other Deductions #

Beyond taxes, other amounts may be deducted:

Health Insurance: Your contribution to employer-sponsored health insurance. Often pre-tax (reduces your taxable income).

Dental and Vision: Separate from health if offered.

401(k) or 403(b): Retirement contributions you’ve elected. Pre-tax contributions reduce your federal and state taxable income. If your stub shows both “traditional 401k” and “Roth 401k,” note that Roth contributions are after-tax.

FSA/HSA: Flexible Spending Account or Health Savings Account contributions. Pre-tax.

Life Insurance: If you’re enrolled in supplemental life insurance.

Union Dues: If you’re in a union.

Garnishments: Court-ordered deductions (child support, debt collection, student loan defaults) appear here.

Section 5: Net Pay #

Net pay is your gross pay minus all deductions. This is the amount deposited into your bank account. The difference between gross and net can be 25–40% for many workers once taxes and benefits are accounted for.

Section 6: Year-to-Date (YTD) Totals #

YTD columns show cumulative totals from January 1 through the current pay period. These are useful for:

• Tax planning: Estimate your total taxable income for the year
• Benefits tracking: Confirm your 401(k) contributions are on track toward the annual limit ($23,500 in 2026)
• Checking Social Security: Confirm you’ll hit the wage cap correctly
• Tax return prep: Your W-2 at year-end should match your YTD totals

How to Spot Errors #

Pay stub errors happen more often than you’d think:

• Wrong pay rate: Compare your hourly rate or salary against your offer letter or last review
• Wrong hours: If you track hours, compare to what’s on the stub
• Missing overtime: If you worked over 40 hours, there should be OT entries
• Wrong tax withholding: If your federal tax seems far too low or too high, check your W-4 on file with HR
• Unexpected deductions: Any line you don’t recognize should be queried with HR or payroll

If you find an error, bring it to HR or payroll in writing with your pay stub attached. Most errors are resolved within 1–2 pay periods.

Pre-Tax vs. After-Tax Deductions #

Understanding this distinction matters for taxes:

Pre-tax deductions (health insurance, 401k traditional, FSA/HSA) reduce your taxable wages — you see a lower number in the federal/state taxable wages column than your gross pay. This is a tax benefit.

After-tax deductions (Roth 401k, some insurance) come out after taxes are calculated — they don’t reduce your taxable income.

Your pay stub is a financial document worth understanding fully. Review it each pay period, keep copies for your records, and use the YTD data to make informed decisions about your withholding, retirement contributions, and tax situation.