Quick Answer
Check 5 key areas: gross pay matches your salary/hours worked, federal withholding is 10-37% of gross, Social Security is exactly 6.2%, Medicare is 1.45%, and YTD totals equal previous YTD plus current amounts. Mathematical errors occur in about 4% of paychecks according to payroll studies.
Best Answer
Sarah Chen, Payroll Tax Analyst
Regular employees who want to systematically check their pay stubs for accuracy
The 5-step pay stub accuracy checklist
Verifying your pay stub accuracy should take 5 minutes per paycheck but can save you hundreds or thousands of dollars in lost wages or tax problems. Here's the systematic approach I recommend to my clients:
Step 1: Verify gross pay calculation
For salaried employees:
Annual salary ÷ number of pay periods = gross per paycheck
Example: $65,000 salary ÷ 26 biweekly pays = $2,500 gross per paycheck
For hourly employees:
(Regular hours × hourly rate) + (Overtime hours × 1.5 × hourly rate) = gross pay
Example: (80 hours × $25) + (5 overtime hours × $37.50) = $2,000 + $187.50 = $2,187.50
Step 2: Check tax withholding calculations
Example verification for $2,500 gross:
Step 3: Verify pre-tax deduction calculations
401(k) contributions: If you elected 8%, verify it's exactly 8% of gross pay
Health insurance: Should match your enrollment election exactly
HSA contributions: Verify against your election
Step 4: Check YTD accumulation accuracy
This is where most errors hide. For every line item:
Previous YTD + Current Amount = New YTD
If your last stub showed YTD gross of $20,000 and this paycheck is $2,500 gross, your new YTD should be exactly $22,500.
Common YTD errors:
Step 5: Verify net pay calculation
The formula:
Gross Pay - (All Pre-tax Deductions) = Taxable Income
Taxable Income - (All Taxes) - (All Post-tax Deductions) = Net Pay
Example calculation:
Red flags that indicate errors
What to do if you find errors
1. Document everything: Screenshot the error, calculate the correct amount
2. Report immediately: Contact HR/payroll within one pay period
3. Request correction: Ask for correction on next paycheck plus adjustment for the error
4. Follow up: Verify the correction appears on your next stub
5. Check year-end: Ensure W-2 reflects all corrections
Use our [pay stub explainer tool](paystub-explainer) to upload your actual pay stub and get automated verification of all calculations.
Key takeaway: Check 5 areas every paycheck: gross pay calculation, tax rates (SS=6.2%, Medicare=1.45%), pre-tax deductions match your elections, YTD totals accumulate correctly, and net pay math is accurate. Catch errors early before they compound.
*Sources: [IRS Publication 15-T](https://www.irs.gov/pub/irs-pdf/p15t.pdf), [Department of Labor Wage and Hour Division](https://www.dol.gov/agencies/whd), [American Payroll Association](https://www.americanpayroll.org)*
Key Takeaway: Check 5 areas every paycheck: gross pay calculation, tax rates (SS=6.2%, Medicare=1.45%), pre-tax deductions match your elections, YTD totals accumulate correctly, and net pay math is accurate.
Common payroll error types and their frequency based on American Payroll Association data
| Error Type | Frequency | Typical Impact | How to Spot |
|---|---|---|---|
| Incorrect gross pay calculation | 1.8% | $50-500 per paycheck | Salary ÷ pay periods ≠ gross shown |
| Wrong tax withholding rates | 1.2% | $25-200 per paycheck | SS ≠ 6.2% or Medicare ≠ 1.45% |
| YTD accumulation errors | 0.8% | Compounds over time | Previous YTD + current ≠ new YTD |
| Incorrect deduction amounts | 0.6% | $10-100 per paycheck | Deduction ≠ elected percentage/amount |
| Missing overtime premium | 0.4% | $20-300 per paycheck | OT hours not paid at 1.5× rate |
More Perspectives
Sarah Chen, Payroll Tax Analyst
New employees who are unfamiliar with paycheck components and want to learn basic verification
Pay stub verification for beginners
As a new employee, you might not know what's "normal" on a pay stub. Here are the basic checks you should do every payday to protect yourself from errors.
Start with the basics: gross pay
If you're salaried: Divide your annual salary by the number of paychecks per year
Example: $40,000 salary ÷ 26 biweekly pays = $1,538.46 per paycheck
If you're hourly: Multiply hours worked by your hourly rate
Check the "automatic" tax deductions
These three taxes are the same for everyone:
1. Social Security: Always 6.2% of your gross pay
2. Medicare: Always 1.45% of your gross pay
3. Federal income tax: Varies based on your W-4 form
For a $1,500 gross paycheck:
If these don't match, there's definitely an error.
Verify your voluntary deductions
These should match exactly what you signed up for:
Simple way to check YTD totals
Take your last pay stub's YTD amount, add this paycheck's current amount. That should equal this pay stub's YTD amount.
Example:
When to ask for help
Don't be embarrassed to ask HR or your supervisor questions about your pay stub. It's your money, and you have the right to understand exactly how it's calculated.
Key takeaway: Focus on three key areas: gross pay matches your salary/hours, Social Security is exactly 6.2%, Medicare is exactly 1.45%. These are the easiest errors to spot and verify.
Key Takeaway: Focus on three key areas: gross pay matches your salary/hours, Social Security is exactly 6.2%, Medicare is exactly 1.45%. These are the easiest errors to spot and verify.
Sources
- IRS Publication 15-T — Federal Income Tax Withholding Methods
- Department of Labor Wage and Hour Division — Federal wage and hour regulations
- American Payroll Association — Payroll best practices and error statistics
Related Questions
Reviewed by Sarah Chen, Payroll Tax Analyst on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.