What are taxable wages?

Taxable wages are the portion of employee compensation subject to income tax withholding, calculated as gross wages minus pre-tax deductions such as retirement contributions and health insurance premiums. For professional service firms, taxable wages determine withholding amounts and appear on W2 forms.

Key characteristics

• Wages are subject to income tax

• Gross wages minus pre-tax items

• Basis for withholding calculation

• Reported in W2 Box 1

• Different from Social Security wages

• Affected by benefit elections

Why it matters for professional service firms

Taxable wages determine how much tax is withheld from each paycheck. Pre-tax benefits reduce taxable wages, providing immediate tax savings. Professional service firms should help employees understand how benefit elections affect their taxable wages and take-home pay.

Real-world example

David's employee had gross wages of $85,000. Pre-tax deductions: 401 (k) $6,000, health insurance $4,800, HSA $2,400. Taxable wages: $71,800 ($85,000 minus $13,200 pre-tax). W2 Box 1 showed $71,800. Employee's federal withholding calculated on $71,800, not $85,000. Pre-tax benefits reduced taxes by approximately $3,300 annually.