How to Read Your Paystub: Every Line Decoded (No Finance Degree Required)

Your paystub has 20+ line items, and the average person can identify maybe 5 of them. The rest are mysterious acronyms, percentage deductions, and YTD totals that quietly add or subtract from your real take-home. Here's every line explained, which ones you can negotiate or change, and which ones to watch carefully because they're quietly costing you money.

Last updated: May 2026

The Three Main Sections

Every US paystub has three main sections:

1. Earnings: all the ways you got paid this period (regular salary, overtime, bonus, etc.)
2. Deductions: everything subtracted (taxes, benefits, retirement, voluntary deductions)
3. Summary: gross pay minus deductions equals net pay (what hits your bank account)

Each line shows both the current pay period amount AND the year-to-date (YTD) total. YTD is what's actually been earned, taxed, and deducted since January 1; it matters for end-of-year tax planning.

Earnings Lines Decoded

Regular pay

Your base salary or hourly wage for standard hours worked. For salaried employees, this is your annual salary divided by the number of pay periods (typically 26 biweekly or 24 semi-monthly). For hourly, it's hours worked times hourly rate.

Overtime pay

Hours over 40 per week paid at 1.5x your regular rate (under federal law). Some states have stricter overtime rules (California: 1.5x over 8 hours per day, 2x over 12). Salaried-exempt employees don't get overtime; salaried-nonexempt do.

Bonus

One-time payments. Federal income tax is withheld at a flat 22% supplemental rate up to $1 million in bonuses per year (37% above). This is often higher than your regular bracket, leading to the "bonus tax" myth. The truth: the tax-at-withholding-time is high, but the actual tax owed is at your regular bracket; you get the difference back at tax time (or pay more if your regular bracket is higher than 22%).

Commission

Variable pay tied to performance metrics. Often taxed at the supplemental 22% rate like bonuses. If your commission is a large portion of total pay, your actual tax rate may differ significantly from withholding rate.

PTO or vacation pay

Paid time off used. Some employers show PTO accrued and PTO used separately; others combine. Watch for use-it-or-lose-it policies in your benefits handbook.

Holiday pay

Pay for company-recognized holidays you didn't work. Typically at your regular rate.

Sick pay

Pay for sick days used. Some states (California, New York) require employer-provided sick pay; others don't.

Gross pay

The sum of all earnings before any deductions. This is the number lenders use for mortgage qualification (your gross monthly income).

Tax Deductions Decoded

Federal income tax

Withheld based on your W-4 settings. The IRS table-based calculation uses your filing status, claimed allowances, and gross pay to estimate how much income tax you'll owe at year-end. If you withhold too much, you get a refund; too little, you owe. The goal is to land near $0 owed (refunds are an interest-free loan to the government).

State income tax

Withheld based on your state's tax code. Some states have no income tax (Florida, Texas, Washington, Nevada, etc.), others have flat rates (Colorado, Illinois), others have progressive rates (California, New York). The state tax amount on your paystub depends on the state where you work, not necessarily where you live (for remote workers, this can get complicated).

Social Security tax (FICA, OASDI)

6.2% of gross pay up to the Social Security wage base ($176,100 in 2026). Once you hit the wage base in a calendar year, no more Social Security tax is withheld for the rest of the year. High earners see their take-home pay rise mid-year when they hit this cap.

Medicare tax

1.45% of all gross pay (no cap). Plus an additional 0.9% on earnings over $200,000 (single) or $250,000 (married). High earners pay 2.35% on the portion above the threshold.

Local taxes (city or county)

Some cities (NYC, Philadelphia, Baltimore) and counties have local income taxes. These show as separate line items.

Pre-Tax Deductions Decoded

Pre-tax means the deduction reduces your taxable income, lowering your tax bill. These are often the most valuable deductions on your paystub.

401(k) traditional contribution

Your retirement contribution. Reduces your federal (and most state) taxable income dollar-for-dollar. Pre-tax dollars grow tax-deferred; taxed when withdrawn in retirement.

403(b) or 457(b)Equivalent retirement accounts for nonprofit employees (403b) and government employees (457b). Same tax treatment as 401(k).

HSA contribution

Health Savings Account for those with high-deductible health plans. Triple tax advantage: pre-tax contribution, tax-free growth, tax-free withdrawal for medical expenses. Often the most valuable benefit on a paystub.

FSA contribution

Flexible Spending Account. Pre-tax contribution for medical or dependent care expenses. Use-it-or-lose-it within the plan year (with some carryover allowed).

Medical insurance premium

Your share of health insurance cost. If pre-tax, it reduces taxable income. Make sure your employer is processing this correctly; pre-tax saves you 20 to 35% in taxes vs post-tax.

Dental and vision insurance

Same treatment as medical insurance.

Disability insurance

Short-term and long-term disability premiums. Can be pre-tax or post-tax depending on plan; tax treatment affects whether disability payments are taxable if you ever need them.

Life insurance

Employer-provided life insurance up to $50,000 in coverage is tax-free. Above $50,000, the imputed value of the excess coverage is taxable income (you'll see it as a small addition to taxable wages).

Commuter benefits

Pre-tax dollars for transit passes, parking, vanpools. Limit ($315 per month each in 2026 for transit and parking).

Post-Tax Deductions Decoded

Post-tax means the deduction happens after taxes; doesn't reduce your taxable income.

Roth 401(k) contribution

Retirement contribution with post-tax dollars. Tax-free growth and tax-free withdrawal in retirement. Best when current tax rate is lower than expected retirement rate.

Voluntary life insurance

Additional life insurance you elected beyond what's employer-paid.

Voluntary disability insurance

Additional disability coverage you elected.

Charitable contributions

Some employers offer payroll deduction for charitable giving. Tax-deductible at year-end if you itemize.

Garnishments

Court-ordered deductions for child support, tax liens, defaulted student loans, etc. Show on paystub if applicable.

The Summary Section

Total gross earnings

All earnings sum.

Total deductions

All deductions sum.

Net pay (take-home pay)

What hits your bank account. The number most people look at first.

YTD columns

Year-to-date totals for each line. Critical for end-of-year tax review and benefit optimization (e.g., are you on track to max your 401(k) contribution? Have you hit the Social Security wage base?).

The Quiet Money Lines to Watch

Imputed income (group term life)

If employer-paid life insurance exceeds $50,000, you pay tax on the imputed value. Small line item but real. For most people, the cost is $5 to $50 a year; not significant. For high earners with large employer-paid policies, can be hundreds.

Domestic partner benefits

If your employer covers your domestic partner's health insurance (not married), the value is taxable income to you. Same for unrelated dependents. This can add hundreds to your tax bill.

Stock plan transactions (RSUs, ESPP)

RSU vests create taxable income at the vest date. ESPP discounts can create taxable income at purchase or sale. These often show as separate large additions to gross income; watch the withholding to avoid surprise tax bills.

Excess contribution refunds

If your 401(k) contribution exceeded IRS limits, the excess gets refunded back as taxable income. Rare but watch for if you contribute aggressively to 401(k) or change jobs mid-year.

What to Check Monthly

• Are pre-tax deductions correct? Verify 401(k) percentage and HSA contributions match your elections.
• Are insurance premiums what you elected? Plan changes mid-year (life events) can cause premium changes.
• Is your filing status correct on W-4? Major life changes (marriage, child) should trigger W-4 updates.
• Are you on track for retirement contribution maxes? Use the YTD column.

What to Check Annually

• Did you max your 401(k)? 2026 limit: $24,000 (plus $8,000 catch-up if 50+).
• Did you max your HSA? 2026 limit: $4,300 individual, $8,550 family (plus $1,000 catch-up if 55+).
• Are you withholding correctly? Aim for $0 owed or $0 refund. Use a paycheck calculator to verify.
• Did you receive a W-2 matching your paystub YTD? Reconcile at year-end before filing taxes.

Use the paycheck calculator to model changes (raising your 401(k) contribution, adding HSA, switching filing status) before making them. See exactly how each change affects your net pay before committing.