Where your paycheck actually goes
Your offer letter said one number. Your bank account says a smaller one. Here’s what happens in between.
Gross pay vs. net pay
Gross pay is what you earned before anything is taken out: your salary divided by the number of pay periods, or your hours times your hourly rate.
Net pay (take-home pay) is what lands in your bank account after taxes, benefits and other deductions. It’s often somewhere around two-thirds to four-fifths of gross pay, but it varies a lot with where you live and which benefits you choose.
The lines on your pay stub
Federal income tax
This is withheld based on the W-4 form you filled out when you started. It’s an estimate of what you’ll owe for the year. If too much is withheld, you get a refund in spring. If too little is withheld, you owe the difference.
Social Security and Medicare (FICA)
These are payroll taxes taken as a set percentage of your pay. They fund retirement and health benefits for older Americans, and your employer pays a matching amount on top. You don’t control these.
State and local income tax
This depends entirely on where you live and work. Some states have no income tax at all, and some cities add their own.
Pre-tax deductions
These include a traditional 401(k), health insurance premiums, and HSA or FSA contributions. They come out before income tax is calculated, so they lower your taxable income. That’s why a $100 pre-tax contribution usually reduces your take-home pay by less than $100.
Post-tax deductions
These include a Roth 401(k), some types of insurance, union dues and wage garnishments. They come out after taxes.
Three numbers worth checking every payday
- Gross pay. Does it match your rate and hours? Payroll mistakes happen, especially with overtime, raises, and first or last paychecks.
- Federal withholding. If it looks very different from last period, something changed. Check your W-4.
- Year-to-date (YTD) totals. They’re handy for budgeting, and the quickest way to spot a deduction that shouldn’t be there.
A big refund isn’t a win
A large tax refund feels like a bonus, but it means you lent the government money all year at zero interest. If you’d rather have that money in each paycheck, you can give your employer an updated W-4 at any time. The IRS Tax Withholding Estimator helps you choose the right settings.
Do this today
- Find your most recent pay stub (usually in your employer’s payroll portal).
- Identify each deduction and whether it’s pre-tax or post-tax.
- Confirm you’re getting your full 401(k) match, if your employer offers one.
- Run the IRS Tax Withholding Estimator if last year’s refund or tax bill was large.
Sources
This guide is general information, not tax or financial advice. Tax rules change and depend on your situation. For anything complicated, talk to a qualified tax professional.