Why Is My Paycheck Smaller Than Expected?
You got the job offer. You divided the salary by 26 pay periods. You calculated what you'd have per paycheck. Then the first direct deposit hit and it was $500–$800 less than you expected. You are not alone. This is one of the most Googled payroll questions every January, and the answer is the same every time: taxes and deductions you didn't account for.
Let's trace exactly where the money goes. Jordan just started a $65K marketing job in Portland. He expected $2,500 per biweekly paycheck. He got $1,847.
Deduction #1: Federal Income Tax. $335
Jordan filled out his W-4 as single with no adjustments. His employer withholds federal tax from each paycheck based on his projected annual earnings. At $65,000, his biweekly federal withholding is about $335.
Deduction #2: Social Security. $155
6.2% of his gross biweekly pay ($2,500). This is non-negotiable and applies to every dollar up to the wage cap.
Deduction #3: Medicare. $36
1.45% of gross pay. Small per paycheck, but it adds up to $942/year.
Deduction #4: Oregon State Tax. $105
Oregon has no sales tax, but makes up for it with one of the highest income tax rates in the country: 8–9.9%. Jordan's biweekly state withholding is about $105. If he'd taken the same job in neighboring Washington (no income tax), this line would be $0.
Deduction #5: Health Insurance. $85
Jordan's employer covers 70% of his health insurance premium. His 30% share is $85 per paycheck ($2,210/year). This comes out pre-tax, which means it actually reduces his taxable income slightly. A small silver lining.
Deduction #6: 401(k) Contribution. $75
During onboarding, Jordan was auto-enrolled in his company's 401(k) at 3%. He didn't change it. That's $75 per paycheck going to retirement. His company matches 50% up to 3%, so he's getting $37.50 in free money per paycheck. The 401(k) contribution is also pre-tax, reducing his federal and state tax slightly.
Deduction #7: Dental + Vision. $12
Small but it's there. Jordan opted into dental and vision during onboarding without checking the cost. It's only $12/paycheck, but it's another line item he didn't account for.
Where Jordan's $2,500 Went
| Deduction | Amount |
|---|---|
| Federal income tax | –$335 |
| Social Security | –$155 |
| Medicare | –$36 |
| Oregon state tax | –$105 |
| Health insurance | –$85 |
| 401(k) (3%) | –$75 |
| Dental + vision | –$12 |
| Total deductions | –$803 |
| Net paycheck | $1,697 |
Wait. That's $1,697, not $1,847. Jordan's actual paycheck was higher because the pre-tax deductions (health insurance, 401(k)) reduced his taxable income, which lowered his federal and state withholding. The math circles around on itself, which is why paycheck deductions feel confusing.
What Jordan Can Control
Some deductions are fixed (FICA, state tax). Others Jordan can adjust:
- W-4 withholding: If he's getting a big refund at tax time, he's overwithholding. He can adjust his W-4 to keep more per paycheck.
- 401(k) percentage: He could drop to 0% to boost his paycheck, but he'd lose the employer match. literally turning down free money.
- Health plan choice: A high-deductible plan might have a lower premium, plus he'd qualify for an HSA.
The best move? Leave the 401(k) alone (it's free money), shop the health plan at open enrollment, and check his W-4 once a year.
Want to see exactly how each deduction shrinks your check? Run your numbers through the Gross-to-Net Calculator on PaycheckTools.
Frequently Asked Questions
Why is my first paycheck so small?
First paychecks are often smaller because they may cover a partial pay period. If you started mid-week, your first check might only cover 3–7 days instead of a full two weeks.
How much of my paycheck goes to taxes?
For most workers earning $40K–$80K, about 20–30% of gross pay goes to combined federal, state, and FICA taxes. The exact amount depends on your state, filing status, and deductions.
Should I change my W-4?
If you consistently get a large refund (over $500), you're giving the government an interest-free loan. Adjusting your W-4 can put that money back in each paycheck instead.