How to Read Your First Paycheck (And What All Those Deductions Actually Mean)
If your first paycheck felt smaller than expected, you're not alone. The gap between the salary you negotiated and the money that actually lands in your account can be 25–35%, sometimes more. Here's what's happening on every line of your pay stub.
Gross Pay vs. Net Pay
Gross pay is your salary before anything is taken out — the number you agreed to when you accepted the job. Net pay (also called take-home pay) is what you actually receive after taxes and other deductions. Everything in between is what we're about to unpack.
Federal Income Tax
The US uses a progressive tax system, which means different portions of your income are taxed at different rates. In 2024, the brackets for a single filer start at 10% on the first ~$11,600, then 12%, 22%, and so on up to 37% for income above $609,350.
A common misconception: if you fall into the 22% bracket, you don't pay 22% on all of your income — only on the portion above the previous bracket threshold. Your effective tax rate (total tax ÷ total income) is almost always lower than your marginal rate (the rate on your last dollar earned).
How much federal tax your employer withholds each paycheck depends on your W-4 form. When you start a new job, the W-4 asks about your filing status and any additional withholding you want. If you have multiple jobs or significant other income, you may need to adjust this to avoid owing a large amount at tax time.
State Income Tax
This depends entirely on where you live. Nine states have no income tax at all: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. In states that do tax income, rates range from around 3% to over 13% in California. Some states use flat rates; others use progressive brackets like the federal system.
Social Security and Medicare (FICA)
These two taxes fund federal retirement and healthcare programs and are mandatory for almost all employees. In 2024:
- Social Security: 6.2% of wages up to $168,600. Your employer pays another 6.2% on top of that — you don't see it, but it's part of the cost of employing you.
- Medicare: 1.45% of all wages, with an additional 0.9% on wages above $200,000.
Combined, FICA takes 7.65% from most workers' paychecks. Self-employed people pay both the employee and employer portions — 15.3% — though they can deduct the employer half.
Pre-Tax Deductions
These are amounts taken out of your paycheck before taxes are calculated, which means they reduce your taxable income. Common pre-tax deductions include:
- 401(k) or 403(b) contributions — retirement savings
- Health insurance premiums — if your employer offers a group plan
- HSA contributions — Health Savings Account, for high-deductible health plans
- FSA contributions — Flexible Spending Account, for medical or dependent care expenses
- Commuter benefits — transit or parking costs, in some plans
Pre-tax deductions are genuinely valuable: every dollar contributed pre-tax saves you whatever your marginal tax rate is. If you're in the 22% bracket, a $100 pre-tax 401(k) contribution only costs you $78 out of pocket.
Post-Tax Deductions
These come out after taxes and don't reduce your taxable income. They include things like Roth 401(k) contributions, life insurance if your employer offers it, union dues, or wage garnishments. These are less common but show up on some pay stubs.
How to Estimate Your Take-Home Pay
Before accepting a job offer, it's worth running the numbers so you're not surprised on payday. Use our paycheck calculator to estimate your net pay based on your salary, state, filing status, and any pre-tax deductions you expect to make. It accounts for 2024 federal and state tax brackets across all 50 states.
A few things the calculator won't know: your specific health insurance premium (if any), your 401(k) contribution rate, or any local city/county taxes that some jurisdictions charge. But it'll get you close enough to budget realistically.