Guides
Your paycheck, decoded.
Plain-language explanations of FICA taxes, deductions, and paycheck math — grounded in IRS and SSA sources, with the numbers shown.
Paycheck Basics
How FICA, deductions, and pay frequency turn your gross into take-home.
What Is FICA? Social Security and Medicare Taxes on Your Paycheck, Explained
FICA withholds 7.65% from every paycheck — 6.2% for Social Security (up to an annual wage base cap) and 1.45% for Medicare. Here's exactly how each works, with a worked dollar example, what reduces your FICA-taxable wages, and why your employer pays a matching share you never see.
Read guide →Why Your Biweekly Paycheck Feels Smaller Than Your Salary Suggests
Most people divide their salary by 12 to estimate a paycheck, but biweekly pay runs 26 cycles a year — not 24. Here's the real math and why it changes your monthly budget.
Read guide →The Three-Paycheck Month Windfall: How to Plan for It Instead of Spend It
If you're paid biweekly, two months every year you'll receive a third paycheck. Most people don't see it coming. Here's how to identify those months and put that money to work before it disappears.
Read guide →Overtime Pay Is Not All Taxed at 1.5×: Here's What Actually Happens
Your overtime hours pay 1.5× your regular rate, but FICA taxes still apply at the standard 7.65% — not a penalty rate. This guide walks through the exact math so you can estimate your real take-home on overtime weeks.
Read guide →Pre-Tax Benefits Are a Tax Discount Only If You Know Which Ones Qualify
Health insurance, FSA contributions, and commuter benefits reduce your FICA-taxable wages — but vision, disability, and life insurance usually don't. This guide lists exactly which benefits lower your Social Security and Medicare tax burden.
Read guide →Why Your Overtime Sometimes Lands on the Next Paycheck, Not This One
Federal law defines overtime by a fixed 7-day workweek, not by your pay period — and semi-monthly and monthly schedules almost never divide evenly into whole workweeks. Here's why that split means your overtime premium sometimes shows up a paycheck later than the calendar dates suggest, and the rule that decides which one it lands on.
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Compare & Plan
Guides for evaluating raises, job offers, and pay changes before you sign.
The True Cost of Saying No to Your Employer's 401(k) Match
A 3% employer match sounds like a small perk. Run the numbers over a 35-year career and the wealth gap between employees who take it and those who don't can exceed $200,000. Here's the exact math.
Read guide →How to Read a Job Offer Letter: The Numbers That Actually Matter
Most job offer letters bury the details that move your take-home pay. This guide shows you which line items to scrutinize, which are negotiable red herrings, and how to run the real math before you sign.
Read guide →Why a Percentage Raise Feels Smaller Than It Should: The FICA Math
A 5% raise sounds great until FICA, federal withholding, and state tax take their cut. This guide shows exactly which taxes reduce your raise and how to calculate what you actually keep.
Read guide →Comparing a Salary Offer to an Hourly Rate: The Hidden Pay Frequency Trap
When you compare an hourly job to a salaried job, the pay frequency matters as much as the rate. This guide shows how weekly, biweekly, semi-monthly, and monthly schedules change your actual cash flow — even when the annual number looks identical.
Read guide →Your Bonus Is Not Your Bonus: What Supplemental Withholding Really Takes
Bonuses get withheld at a flat 22% federal rate (37% above $1,000,000), plus full FICA — not your actual tax bracket. Here's the exact math on what a bonus check really pays out.
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