Table of Contents
Key Takeaways
A complete guide to understanding every line on your pay stub in 2026 — federal withholding, Social Security, Medicare, state taxes, 401(k), insurance premiums, and more. Includes sample breakdowns for California vs Texas.
Editorial Note: This article is for informational purposes only and does not constitute financial advice. Consult a qualified professional for your specific situation. Data reflects 2026 figures.
Your pay stub is the single most important financial document you receive regularly — yet most Americans have never taken the time to understand what every line means. A 2026 survey found that 62% of workers cannot explain the difference between gross pay and net pay beyond "taxes take some out," and 78% have never verified that their deductions are correct.
This matters because pay stub errors are more common than you think. The American Payroll Association estimates that 1-8% of payrolls contain errors in any given pay period. Over a year, an unnoticed $50 per paycheck error costs you $1,300. Understanding your pay stub is not just financial literacy — it is financial self-defense.
In this guide, we will walk through every line item on a typical 2026 pay stub, explain exactly how each deduction is calculated, compare take-home pay in a high-tax state (California) versus a no-income-tax state (Texas), and show you how to optimize your W-4 to avoid owing taxes or giving the government an interest-free loan.
The California employee takes home $154.81 less per biweekly paycheck — $4,025 less per year — due to state income tax and State Disability Insurance (SDI). Over a career, this difference compounds significantly, though California employees may benefit from stronger worker protections, disability coverage, and paid family leave funded by SDI.
Gross Pay: Where It All Starts
Gross pay is your total earnings before any deductions. For a salaried employee earning $75,000 per year paid biweekly (26 pay periods), gross pay per paycheck is $2,884.62. For hourly employees, gross pay equals hours worked multiplied by hourly rate, plus any overtime (1.5x rate for hours over 40 per week in most states). Your gross pay may also include:- Regular salary or hourly wages
- Overtime pay (time-and-a-half or double-time)
- Bonuses and commissions
- Holiday pay or PTO payouts
- Shift differentials (extra pay for night/weekend shifts)
Federal Income Tax Withholding
Federal income tax withholding is the largest variable deduction on most pay stubs. The amount withheld depends on your W-4 elections (filing status, dependents, additional withholding) and the IRS tax brackets for 2026:- 10% on income up to $11,925 (single) / $23,850 (married filing jointly)
- 12% on income $11,926 - $48,475 (single) / $23,851 - $96,950 (MFJ)
- 22% on income $48,476 - $103,350 (single) / $96,951 - $206,700 (MFJ)
- 24% on income $103,351 - $197,300 (single) / $206,701 - $394,600 (MFJ)
- 32% on income $197,301 - $250,525 (single) / $394,601 - $501,050 (MFJ)
- 35% on income $250,526 - $626,350 (single) / $501,051 - $751,600 (MFJ)
- 37% on income above $626,350 (single) / above $751,600 (MFJ)
FICA Taxes: Social Security and Medicare
FICA (Federal Insurance Contributions Act) taxes fund Social Security and Medicare. These are non-negotiable — every W-2 employee pays them regardless of income level or W-4 elections.Social Security Tax (2026):
- Rate: 6.2% of gross wages
- Wage base limit: $168,600 (you stop paying Social Security tax on earnings above this amount)
- Maximum annual Social Security tax: $168,600 x 0.062 = $10,453.20
- Per biweekly paycheck on $75,000 salary: $2,884.62 x 0.062 = $178.85
Medicare Tax (2026):
- Rate: 1.45% of ALL gross wages (no wage base limit)
- Additional Medicare Tax: 0.9% on wages exceeding $200,000 (single) or $250,000 (married filing jointly)
- Per biweekly paycheck on $75,000 salary: $2,884.62 x 0.0145 = $41.83
State and Local Taxes
State income tax varies dramatically by state. Nine states have no income tax at all (Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, Wyoming). Others range from flat rates of 3-5% to progressive rates exceeding 13%. For our $75,000 salary example, state tax impact varies enormously:- Texas: $0 state income tax
- Florida: $0 state income tax
- Colorado: 4.4% flat rate = $2,618/year ($101/biweekly)
- New York: Progressive, approximately $3,800/year ($146/biweekly) for NYC resident
- California: Progressive, approximately $3,200/year ($123/biweekly)
Pre-Tax Deductions: 401(k), HSA, and Insurance
Pre-tax deductions reduce your taxable income, meaning you pay less in federal and state income tax. Common pre-tax deductions include:401(k) Contributions: The 2026 limit is $23,500 ($31,000 if age 50+). If you contribute 10% of your $75,000 salary, that is $7,500/year or $288.46 per biweekly paycheck deducted before income tax is calculated. This saves you approximately $1,650 in federal tax annually (at the 22% bracket).
Health Insurance Premiums: The average employee contribution for employer-sponsored health insurance in 2026 is $1,400/year for individual coverage and $6,200/year for family coverage. Per biweekly paycheck: $53.85 (individual) or $238.46 (family). These are typically pre-tax under Section 125 cafeteria plans.
Health Savings Account (HSA): If you have a high-deductible health plan, you can contribute up to $4,300 (individual) or $8,550 (family) pre-tax in 2026. HSA contributions are triple-tax-advantaged: tax-deductible going in, tax-free growth, and tax-free withdrawals for qualified medical expenses.
Flexible Spending Account (FSA): Up to $3,200 in 2026 for healthcare FSA, pre-tax. Unlike HSA, FSA funds generally must be used within the plan year (use-it-or-lose-it, though many plans allow $640 rollover).
Other pre-tax deductions: Dental insurance ($20-$60/paycheck), vision insurance ($5-$15/paycheck), dependent care FSA (up to $5,000/year), commuter benefits (up to $325/month for transit or parking).
Sample Pay Stub: $75,000 Salary in California vs. Texas
| Line Item | California (Biweekly) | Texas (Biweekly) | Difference |
|---|---|---|---|
| Gross Pay | $2,884.62 | $2,884.62 | $0 |
| 401(k) (10%) | -$288.46 | -$288.46 | $0 |
| Health Insurance (Family) | -$238.46 | -$238.46 | $0 |
| HSA Contribution | -$165.00 | -$165.00 | $0 |
| Federal Income Tax | -$198.42 | -$198.42 | $0 |
| Social Security (6.2%) | -$178.85 | -$178.85 | $0 |
| Medicare (1.45%) | -$41.83 | -$41.83 | $0 |
| CA State Income Tax | -$123.08 | $0 | -$123.08 |
| CA SDI (1.1%) | -$31.73 | $0 | -$31.73 |
| Net Pay (Take-Home) | $1,618.79 | $1,773.60 | -$154.81 |
W-4 Optimization: Avoiding Surprises at Tax Time
The W-4 form determines how much federal income tax your employer withholds from each paycheck. Getting it wrong means either:- Under-withholding: You owe a large tax bill (potentially with penalties) when you file your return
- Over-withholding: You get a large refund — which means you gave the government an interest-free loan all year
Common W-4 mistakes that cause problems:
- Claiming "Single" when married (over-withholds significantly)
- Not updating W-4 after marriage, divorce, or having children
- Ignoring side income (freelance, rental, investment) that is not subject to withholding
- Not accounting for multiple jobs in a household
- Failing to adjust after major life changes (buying a home, paying off student loans)
How to get your withholding right: Use the IRS Tax Withholding Estimator (irs.gov/W4App) annually, especially after any life change. Input your actual year-to-date earnings and withholding, and it will tell you exactly how to fill out your W-4 to owe approximately $0 at tax time.
Key Takeaways
- Your pay stub contains gross pay, pre-tax deductions (401k, insurance, HSA), FICA taxes (Social Security 6.2% + Medicare 1.45%), federal withholding, state/local taxes, and post-tax deductions
- On a $75,000 salary, FICA alone takes $5,737.50 per year — this is non-negotiable regardless of your W-4
- Pre-tax deductions (401k, HSA, insurance) reduce your taxable income, saving you 22-32% in taxes on every dollar contributed
- State tax differences are significant: a $75,000 earner takes home $4,025 more per year in Texas vs. California
- The average $3,167 tax refund represents $264/month in over-withholding — adjust your W-4 to keep that money in your paycheck
- Use our Income Tax Calculator to estimate your total tax burden and optimize your withholding
Frequently Asked Questions
Why is my take-home pay so much less than my salary?
On a $75,000 salary, you can expect to take home approximately $52,000-$58,000 depending on your state, deductions, and withholding elections. The gap comes from: federal income tax (approximately $5,500-$7,000), FICA taxes ($5,737 combined Social Security and Medicare), state income tax ($0-$4,500 depending on state), plus voluntary pre-tax deductions like 401(k) contributions and health insurance premiums. A typical employee loses 28-35% of gross pay to mandatory taxes and another 5-15% to voluntary benefits deductions.
What is the difference between gross pay and net pay?
Gross pay is your total earnings before any deductions — your salary divided by pay periods, or hours worked times hourly rate. Net pay (take-home pay) is what actually hits your bank account after all deductions: federal tax, state tax, FICA (Social Security + Medicare), health insurance, 401(k) contributions, and any other withholdings. For most employees, net pay is 55-72% of gross pay. The exact percentage depends on your tax bracket, state of residence, and benefit elections.
Do I pay Social Security tax on my entire salary?
No. In 2026, Social Security tax (6.2%) applies only to the first $168,600 of wages. Once your year-to-date earnings exceed $168,600, Social Security withholding stops for the remainder of the year, and your take-home pay increases by 6.2% on subsequent paychecks. If you earn $200,000, you pay Social Security tax on the first $168,600 ($10,453.20) but not on the remaining $31,400. Medicare tax (1.45%) has no wage base limit — it applies to all earnings, with an additional 0.9% on wages over $200,000.
How do I know if my employer is withholding the correct amount?
Use the IRS Tax Withholding Estimator at irs.gov/W4App. Input your filing status, income, current withholding (from your most recent pay stub), and any other income or deductions. The tool will tell you whether you are on track to owe, get a refund, or break even at tax time, and will recommend specific W-4 adjustments. Check this at least once per year and after any major life change (marriage, new child, job change, side income). If your estimated refund or balance due exceeds $500, adjust your W-4 immediately.
Are 401(k) contributions taken out before or after taxes?
Traditional 401(k) contributions are taken out before federal and state income taxes are calculated (pre-tax), which reduces your taxable income and your current tax bill. However, 401(k) contributions are still subject to FICA taxes (Social Security and Medicare). So if you contribute $288 per biweekly paycheck to your 401(k), your federal and state taxable income decreases by $288, but you still pay Social Security (6.2%) and Medicare (1.45%) on that $288. Roth 401(k) contributions, by contrast, are taken out after income taxes — you pay tax now but withdrawals in retirement are tax-free.