What is state withholding?

State withholding is income tax withheld from employee wages for state tax purposes, with rates and rules varying by state. For professional service firms with employees in multiple states, state withholding requires compliance with each state's specific requirements.

Key characteristics

• State income tax withheld

• Rates vary by state

• Some states have no income tax

• Rules differ from the federal

• Multi-state adds complexity

• Deposited per state schedule

Why it matters for professional service firms

State withholding must comply with each state's specific rules. Remote employees in different states create multi-state obligations. Professional service firms must register, withhold, deposit, and file in each state where employees work, or face penalties.

Real-world example

Sarah's firm had employees in California, Texas, and New York. State withholding: California required withholding at graduated rates up to 12.3%, Texas had no state income tax (zero withholding), and New York required withholding at rates up to 10.9%. Each state had different forms, deposit schedules, and annual filings. Payroll system configured for each state's requirements.