What is OASDI on my paycheck?

OASDI stands for Old Age, Survivors, and Disability Insurance — the formal name for Social Security tax. In 2026, you pay 6.2% of wages up to $176,100. Your employer matches this 6.2%.

Why does my paycheck go up mid-year?

If your salary exceeds $176,100 (the 2026 Social Security wage cap), Social Security withholding stops once you hit that threshold. This results in a larger net paycheck for the remainder of the year.

How do I negotiate a higher salary?

Research market rates using BLS OES data before any negotiation. Present your case in terms of market value and specific contributions. The best time to negotiate is during a job offer or performance review. A counteroffer of 10-15% above the initial offer is standard.

What is the difference between biweekly and semimonthly pay?

Biweekly is every two weeks — 26 paychecks per year. Semimonthly is twice per month — 24 paychecks per year. The annual gross is the same; the per-check amount differs slightly.

Salary & Paycheck Guide 2026 — Negotiation, Deductions, and Pay Structures

Your paycheck is the foundation of every financial plan — yet most workers don’t fully understand what’s being deducted or how to maximize compensation.

2026 paycheck deduction reference:

Deduction	Employee Rate	Notes
Federal income tax	10-37% (marginal)	Varies by income and withholding
Social Security (OASDI)	6.2%	On first $176,100 of wages
Medicare	1.45%	No wage cap; +0.9% above $200K
State income tax	0-13.3%	9 states have no income tax
401(k) contribution	Up to 23.5%	Pre-tax reduces taxable income

On a $75,000 salary in a typical state, take-home pay is approximately $52,000-$56,000/year.

Why Did My Paycheck Change?

Common reasons: updated W-4 withholding, benefit enrollment changes, or hitting the Social Security wage cap ($176,100 in 2026) — which stops Social Security withholding and increases your paycheck in the second half of the year.

Understanding Your Paycheck

Pay Structures

Salary Negotiation

Salary Conversion

Earnings Data

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Written by WealthVieu

WealthVieu researches and writes data-driven personal finance guides using primary sources including the IRS, Bureau of Labor Statistics, Federal Reserve, and Census Bureau.

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