Your salary is $65,000, but your bank account only ever sees about $1,850 every two weeks. Where does the rest go? The answer is sitting in a document most people never read: your pay stub. Learning how to read a pay stub takes about ten minutes, and it can catch payroll errors, reveal tax savings, and show you the real number to build your budget around: your net pay. In this guide, you will run a 10-minute paycheck audit on your own stub and finish knowing exactly where every dollar goes.
TL;DR: A pay stub tells three money stories: gross pay (what you earned), deductions (taxes, benefits, retirement), and net pay (what actually lands in your account). Run the 10-minute paycheck audit below: confirm your hours and rate, sort every deduction into its bucket, check the year-to-date column, and match net pay to your deposit. Then budget from net pay, never gross pay.
The 10-Minute Paycheck Audit: Your Unique Tool for Every Payday
Most pay stub guides just define terms. This one gives you a job to do: a seven-step check you run on your latest stub, once, in about ten minutes. Grab your most recent stub — from your payroll portal or your email — and work through the steps in order. Every time a number does not match your expectation, circle it. Those circles are either errors worth money or benefits you forgot you signed up for.
Step 1: Check the header — pay period, pay date, and employer details
Start at the top. Confirm the pay period dates match the weeks you actually worked and that the pay date is the day money should have landed. Also check your name, employee ID, and pay frequency (weekly, biweekly, semimonthly, or monthly) — a wrong frequency quietly breaks every annual estimate you make from the stub.
Step 2: Confirm your hours and pay rate
In the earnings section, check your regular hours and hourly rate, or your salary amount for the period. If you worked overtime, confirm the overtime hours and rate (usually 1.5× your regular rate). Errors love to hide here: a missed overtime hour or last year’s rate is money straight out of your pocket.
Step 3: Rebuild your gross pay
Add up the earnings lines: regular pay plus overtime plus any bonuses, commissions, or shift differentials. The total should equal the gross pay line. If it does not, you have your first question for payroll.
Step 4: Sort every deduction into three buckets
Every deduction belongs in one of three buckets: mandatory taxes (federal, state, and local income tax), FICA taxes (Social Security and Medicare), or voluntary deductions (retirement, health insurance, and the rest). Sorting matters because each bucket follows different rules — and a mystery line can only hide when you do not know its bucket.
Step 5: Do the FICA math yourself
Social Security tax is 6.2% of your FICA wages, up to an annual wage cap ($184,500 for 2026), and Medicare tax is 1.45% of all FICA wages, with no cap. Together that is 7.65%: multiply your FICA wages by 0.0765 and compare with the two FICA lines on your stub. Small rounding differences are normal; a gap of several dollars is not.
Step 6: Check the year-to-date column
Your stub has two money columns: this period and year-to-date (YTD). The YTD column is your running total for the year, and the column your tax return will eventually reflect. Multiply your per-period numbers by the paychecks received so far and compare. A YTD figure that jumps strangely between stubs is a red flag.
Step 7: Match net pay to your bank deposit
Finally, compare the net pay line with the amount that actually arrived in your bank account. They should match to the cent. If they do not, check for direct-deposit splits, then call payroll. The audit ends when the paper number and the bank number agree.
Anatomy of a Pay Stub, Line by Line
Pay stubs look different at every employer, but they all carry the same sections. Here is what each one means.
Gross pay: the headline number
Gross pay is your total earnings before any deductions. It is the number your salary offer quoted — and the number that causes the most budgeting trouble, because nobody takes home their gross pay. Treat it as a headline, not a plan: every budget should start from net pay, which is why a beginner-friendly budget guide always begins with your take-home number.
Mandatory taxes: federal, state, and local income tax
Federal income tax withholding is based on your W-4 form: filing status, dependents, and any extra withholding you requested. It is an estimate, not your final tax bill — you settle the difference when you file. State income tax varies widely: some states have none, while others take a flat or graduated share, and a few cities add local tax on top. If any line looks far too high or suspiciously low, your W-4 is the first place to look, and the IRS Tax Withholding Estimator is the free tool that checks it.
FICA: Social Security and Medicare
FICA stands for the Federal Insurance Contributions Act, and it funds Social Security and Medicare. You pay 6.2% for Social Security (on wages up to the annual cap) and 1.45% for Medicare (on all wages), and your employer pays a matching 7.65% on top. High earners pay an extra 0.9% Medicare tax above $200,000. Unlike income tax, you cannot adjust FICA with a form — it is fixed by law, which is exactly why one multiplication verifies it. The Social Security Administration publishes the current FICA rates and wage caps.
Pre-tax deductions: the good kind
Pre-tax deductions come out before income tax is calculated, lowering your taxable income and your tax bill. The usual suspects are 401(k) or 403(b) contributions, health insurance premiums, and HSA or FSA contributions. One subtlety matters: 401(k) contributions lower your income tax but not your FICA wages, while health premiums paid through a cafeteria plan lower both. Knowing which is which stops you miscalculating the FICA check in step 5.
Post-tax deductions: the rest
Post-tax deductions come out after taxes: Roth 401(k) contributions, disability or life insurance premiums, union dues, charitable giving, and wage garnishments. They do not reduce your tax bill, but they still deserve a scan. Mystery deductions love to hide here — an old benefit routed through payroll, an election you cancelled that never left the stub. If you cannot name a post-tax line, ask HR what it is.
Net pay: the number that matters
Net pay — take-home pay — is gross pay minus every deduction. It is the amount deposited into your account, and the only number your budget should use. If your salary is $65,000 but your biweekly net pay is $1,847, your real monthly income is about $3,694 (net pay times 26 paychecks, divided by 12), not $5,417. That gap is the difference between a budget that works and one that quietly fails every month.
Worked Example: Maya’s $2,600 Biweekly Paycheck
Meet Maya, a salaried employee paid biweekly with $2,600 in gross pay per period. Here is her stub, decoded with the audit steps above. Watch how the three buckets stack up — and how the net pay lands well below the headline number.
| Pay stub line | This period | What it means |
|---|---|---|
| Gross pay | $2,600.00 | Earnings before deductions |
| 401(k), pre-tax (5%) | −$130.00 | Retirement; lowers income tax |
| Health insurance, pre-tax | −$110.00 | Her premium share; lowers income and FICA tax |
| Federal income tax | −$210.00 | Set by her W-4 |
| Social Security (6.2%) | −$154.00 | 6.2% of $2,490 FICA wages |
| Medicare (1.45%) | −$36.00 | 1.45% of $2,490 FICA wages |
| State income tax | −$95.00 | State rate; illustrative |
| Disability insurance, post-tax | −$18.00 | After-tax premium |
| Total deductions | −$753.00 | 29% of gross pay |
| Net pay | $1,847.00 | Her take-home pay |
Two details here are worth pausing on. First, the FICA math: Maya’s FICA wages are $2,490, not $2,600, because her $110 health premium lowers FICA wages while her $130 401(k) contribution does not — which is why Social Security is $154 (6.2% of $2,490, rounded) rather than $161. Second, her take-home rate is 71%: $1,847 out of $2,600, or about $48,022 a year over 26 paychecks. That is the real income figure her budget should use, not her $67,600 gross salary. For a plan built on it, see this guide to budgeting biweekly paychecks.
5 Pay Stub Errors That Cost Real Money
Payroll departments process thousands of stubs, and mistakes happen more often than people expect. These are the five errors the audit is designed to catch, each with its own fix.
1. Wrong hours or overtime rate
Compare the hours on your stub with the hours you actually worked, including overtime. A missing overtime hour at time-and-a-half is one of the most expensive single-line errors a stub can carry. Keep your own simple record — a note on your phone each shift — so you can prove the gap.
2. A deduction you never signed up for
Scan every voluntary line and ask: did I choose this, and is the amount what I agreed to? Enrolment windows, plan changes, and system migrations all create orphan deductions that quietly run for months. Fix: cancel in writing, keep the confirmation, and check the next two stubs to confirm it disappears.
3. Year-to-date numbers that do not add up
Multiply a per-period deduction by the paychecks received and compare it with the YTD figure. A YTD total that is too low can mean a deduction was missed (and may be double-caught later); one that is too high can mean you were charged twice. Either way, YTD is the column that makes small per-period errors visible.
4. Withholding that does not match your W-4
A big refund every spring usually means you over-withheld all year — an interest-free loan to the government. A tax bill in April usually means the opposite. Both are W-4 problems, fixable in one form: file a new W-4 with your employer, and use the IRS Tax Withholding Estimator first so the new numbers are deliberate rather than guessed.
5. A missing employer 401(k) match
If your employer matches retirement contributions, your stub should show both your contribution and theirs. A missing match line can mean your rate is below the match threshold, or that enrolment never completed. Either way, an unmatched 401(k) is free money left on the table — fix it first.
After the Audit: Two Moves Worth Making
Fix your W-4 if withholding looks wrong
If the audit left you over- or under-withheld, file a new W-4. Life changes — a new job, a marriage, a second income, a side hustle — all change the right withholding amount. Re-run the audit on the next stub to confirm the new withholding landed as expected.
Rebuild your budget around net pay
Take your verified net pay, multiply by your paychecks per year, and divide by 12. That monthly figure is your real income. If your current budget was built on gross pay, it was over-committed from day one — which explains a lot of mysteriously tight months. A starter emergency fund is the first job for the newly honest number, because it turns the next surprise expense into an inconvenience instead of a crisis.
Your Paycheck Audit Checklist
Run this list against your latest stub; every unchecked box is a question for payroll or a budget fix.
- Pay period dates and pay date match the weeks you worked
- Hours and pay rate (including overtime) are correct
- Earnings lines add up to the gross pay figure
- Every deduction is one you recognise, in the right bucket
- FICA lines equal roughly 7.65% of your FICA wages
- Year-to-date totals match your paycheck count so far
- Net pay matches your bank deposit to the cent
- Your budget is built on net pay, not gross pay
- Your W-4 still reflects your current life situation
- Your employer 401(k) match, if offered, actually appears
Frequently Asked Questions
Why is my paycheck less than my salary divided by 26?
Because your salary is gross pay, and your paycheck is net pay. Federal, state, and sometimes local income taxes, plus Social Security and Medicare, plus retirement and insurance deductions, are all taken out first. Combined deductions commonly run 20–35% of gross pay, so a $65,000 salary often produces a biweekly net paycheck near $1,750–$2,000 rather than $2,500.
What is FICA on my pay stub?
FICA is the pair of payroll taxes that fund Social Security (6.2% of wages up to the annual cap, $184,500 for 2026) and Medicare (1.45% of all wages). Together they take 7.65% of your FICA wages, and your employer pays a matching 7.65% separately. You cannot change FICA with a form, but one multiplication verifies it — exactly what step 5 of the audit does.
How do I know if too much tax is being withheld?
Compare your federal withholding with your actual tax liability. The simplest signal is last year’s return: a very large refund usually means over-withholding, while a bill means under-withholding. For a precise answer, run the free IRS Tax Withholding Estimator with your latest stub in hand, then file a new W-4 if it says your withholding is off.
What should I do if my pay stub is wrong?
Contact your payroll or HR department promptly, in writing, naming the exact line and the correct figure. Keep a copy of the stub and of your message. Most payroll errors can be corrected on the next pay run; if a wrong deduction already cost you money, ask how the correction will be repaid and check the next two stubs to confirm it. For persistent or large errors, keep a dated paper trail.
Conclusion: Ten Minutes, Every Payday
Your pay stub is not paperwork to ignore — it is the receipt for your working life, and the only document showing exactly what your employer did with your money before you saw it. Run the 10-minute paycheck audit on your next stub: confirm the header, rebuild gross pay, sort the deductions, check the FICA math, verify the year-to-date column, and match net pay to your deposit. Then build your budget on the number you verified, not the number you were offered. That single habit — ten minutes, every payday — beats most budgeting apps.
If this audit turned up a number worth acting on, keep the momentum: subscribe to the HopProg newsletter for one practical money guide a week, learn more on the About page, or get in touch through our Contact page. You can also browse more guides in the Budgeting section.
Disclaimer: This article is for education only and is not financial advice. Tax rates, wage caps, and withholding rules change over time — verify current figures with the IRS or a qualified tax professional before acting. Read our full disclaimer for details.
