Payroll Glossary — 44+ Terms Explained for 2026
The complete BestPaystubGen payroll and tax glossary. Every term every American employee, freelancer, contractor, and small business owner needs to read a paystub correctly. Definitions cover federal and state taxes, FICA, Medicare, Social Security, gross and net pay, overtime, withholdings, retirement contributions, garnishments, IRS forms (W-2, W-4, 1099, I-9), benefits, and compliance.
Tax Terms (10)
Earnings Terms (11)
Deduction Terms (8)
401(k) Contribution — Pre-tax retirement savings deducted from your paycheck, reducing your taxable income.Health Insurance Premium — Your share of the monthly health insurance cost, usually deducted pre-tax.Health Savings Account (HSA) — A triple-tax-advantaged savings account for medical expenses with a high-deductible health plan.Flexible Spending Account (FSA) — Pre-tax account for medical or dependent care expenses — use it or lose it.Wage Garnishment — Court-ordered deduction from your paycheck to pay debts like child support, student loans, or tax liens.State Disability Insurance (SDI) — State-mandated insurance for short-term disabilities — applies in CA, NY, NJ, RI, and HI.Pre-Tax Deduction — A deduction taken from your paycheck BEFORE taxes are calculated, reducing your taxable income.After-Tax (Post-Tax) Deduction — A deduction taken AFTER taxes — like Roth 401(k) contributions, union dues, or garnishments.
Payroll Terms (3)
Compliance Terms (5)
Benefits Terms (3)
Tax Forms (4)
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