Most people glance at one number on their paycheck: the deposit amount. Everything above it — the gross pay, the taxes, the deductions, the year-to-date totals — is treated as background noise. But that background noise is actually a complete picture of where roughly 25–35% of your income goes before you ever see it, and understanding it gives you real control over your financial situation.
This guide walks through every line you’ll find on a typical pay stub, explains what it means, and shows you how to check whether your withholding is set up correctly.
Gross Pay vs. Net Pay: The Starting Point
Gross pay is what you earn before any deductions. For salaried employees, it’s your annual salary divided by the number of pay periods per year. For hourly employees, it’s your hourly rate multiplied by hours worked, plus any overtime (typically 1.5× for hours over 40 per week). This is the number your employer uses to calculate everything else.
Net pay is what hits your bank account after all taxes and deductions are subtracted. It’s sometimes called “take-home pay,” though technically your take-home is net pay plus any benefits paid in non-cash form. The gap between gross and net is where most people have the least visibility — and the most opportunity.
Our Take-Home Pay Calculator estimates your net pay based on your salary, filing status, state, and pre-tax deductions. It’s useful both for checking your current stub and for modeling how changes — a new salary, different W-4 elections, or new pre-tax contributions — would affect your actual paycheck.
Pay Periods: How Frequency Affects Your Paycheck
| Pay Frequency | Periods per Year | Annual Salary ÷ Period | Common For |
|---|---|---|---|
| Weekly | 52 | $60,000 → $1,153.85 | Hourly / blue-collar |
| Biweekly | 26 | $60,000 → $2,307.69 | Most common in US |
| Semimonthly | 24 | $60,000 → $2,500.00 | Professional/salaried |
| Monthly | 12 | $60,000 → $5,000.00 | Some white-collar roles |
Note that biweekly employees receive 26 paychecks per year, not 24. Two months per year have three pay dates. This “extra paycheck” is a useful windfall for debt payoff or savings goals if you budget based on two paychecks per month normally.
Mandatory Tax Withholdings
These are non-negotiable deductions required by federal and state law.
Federal Income Tax Withholding
Your employer withholds federal income tax based on your W-4 form (specifically your filing status, any additional withholding, and whether you claimed exemptions). The IRS Publication 15-T tables determine how much to withhold per pay period given your gross pay and W-4 elections. This is an estimate of your annual tax liability spread across your pay periods — the actual amount owed is settled when you file your return. If your withholding is too low, you owe money in April. If too high, you get a refund.
Many people treat a large refund as a good thing, but it really means you gave the government an interest-free loan all year. Our Tax Bracket Calculator can help you estimate your actual annual liability so you can calibrate withholding more precisely.
Social Security Tax (OASDI)
6.2% of gross wages up to the Social Security wage base ($176,100 in 2026). Once your earnings exceed the wage base for the year, Social Security withholding stops for that year. Your employer matches this 6.2%, for a total of 12.4% sent to the Social Security trust fund.
Medicare Tax (HI)
1.45% of all gross wages with no wage base cap. High earners (above $200,000 for single filers, $250,000 for joint) also pay an Additional Medicare Tax of 0.9%, which is withheld by employers but not matched. Together, Social Security and Medicare withholding are called FICA taxes, totaling 7.65% for most employees.
State and Local Income Tax
Varies by location. Nine states have no state income tax (Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, Wyoming). Others range from flat rates around 3% to progressive rates above 13% in California. Some cities and counties also levy local income taxes.
Contributions made through payroll to a 401(k), HSA, or FSA reduce your gross pay for both federal income tax AND FICA purposes when made pre-tax through a Section 125 cafeteria plan. That 7.65% FICA savings is on top of the income tax deduction — it’s one of the most underappreciated benefits of workplace retirement and healthcare plans.
Pre-Tax Deductions: Reducing Your Taxable Income
These deductions come out of your gross pay before taxes are calculated, reducing both your taxable income and your FICA base (in most cases).
- Traditional 401(k) / 403(b) contributions — reduce federal and most state taxable income; also reduce FICA base when processed through a cafeteria plan
- Health insurance premiums — employer-sponsored health insurance premiums paid through a Section 125 plan are pre-tax for federal income tax and FICA
- HSA contributions — pre-tax via payroll, avoiding both income tax and FICA (an extra 7.65% savings vs. contributing directly to an HSA outside payroll)
- FSA contributions — Flexible Spending Accounts for healthcare or dependent care, pre-tax
- Dental and vision premiums — typically pre-tax through employer benefit plans
- Commuter benefits — transit and parking benefits up to IRS limits ($325/month in 2026) are pre-tax
Post-Tax Deductions
These come out after taxes are calculated, so they don’t reduce your tax liability:
- Roth 401(k) contributions — post-tax, but grow and withdraw tax-free
- Life insurance premiums above $50,000 in coverage — imputed income rules apply to employer-provided coverage above the threshold
- Wage garnishments — court-ordered deductions for child support, alimony, or debt collection
- Union dues
- Some disability insurance premiums
Year-to-Date (YTD) Totals: The Most Useful Column
Most pay stubs show both current period amounts and year-to-date totals. The YTD column is where you can catch errors that are invisible in a single paycheck:
- Check that YTD 401(k) contributions are tracking toward your annual target
- Verify Social Security withholding stops once your YTD earnings exceed $176,100
- Confirm your employer has been depositing benefits deductions (health premiums should match your plan enrollment)
- Track FSA spending against the balance to avoid year-end forfeiture
When to Update Your W-4
Your W-4 determines federal withholding. You should update it after any significant life change:
- Marriage or divorce
- Birth or adoption of a child
- Starting or stopping a second job
- A spouse starting or stopping work
- Significant changes in income, deductions, or credits
- Receiving a large refund or owing a large amount at tax time
The IRS Tax Withholding Estimator (available at irs.gov) walks through a detailed calculation to help you choose the right W-4 settings. Pair it with our Take-Home Pay Calculator to model how different withholding amounts affect your paycheck and your likely refund or balance due. For a broader look at how your income is taxed across brackets, the tax bracket guide explains the full picture of how marginal rates apply to your income.