How to Register for State Employer Taxes

Step 1: Get Your Federal EIN First

Before registering with any state agency as an employer, get a federal Employer Identification Number from the IRS if you don't already have one. Nearly every state employer tax registration asks for your EIN as part of the application, so having it ready avoids a stalled registration.

Step 2: Identify Which State Agency or Agencies You Need

States structure employer tax registration differently:

• California registers employers for both unemployment insurance and state income tax withholding through one agency, the Employment Development Department (EDD).
• Texas has no state personal income tax, so there's no withholding registration; employers register only for unemployment tax, with the Texas Workforce Commission, within 10 days of becoming liable for the tax.
• New York uses a single combined form, Form NYS-100, filed with the New York State Department of Labor, covering unemployment insurance, withholding and wage reporting together.
• Washington has no personal or corporate income tax, so employers register with the Employment Security Department for unemployment insurance and separately with the Department of Labor & Industries for mandatory workers' compensation coverage, which Washington requires for any employee.

Because the structure differs this much between states, check your own state's labor or revenue department directly rather than assuming another state's process applies to you.

Step 3: Register Before, or Promptly After, You Hire Your First Employee

Most states expect registration around the time you become liable for the tax, which is usually when you pay wages to your first employee, though the specific deadline varies. Texas's 10-day window after becoming liable is one concrete example; other states expect registration with your first payroll or within a set number of days afterward. Confirm your specific state's deadline rather than assuming it matches a figure you've heard for a different state.

Step 4: Provide the Information the Registration Asks For

Typical state employer tax registrations ask for your legal business name and EIN, your business structure, the date you began or expect to begin paying wages, your estimated number of employees, and your business address. Some states also ask about your industry classification, since certain unemployment insurance rates are set in part by industry.

Step 5: Receive Your State Employer Account Number and Rate

Once registered, the state issues an employer account number, separate from your federal EIN, that you'll use on state payroll tax filings. For unemployment insurance specifically, new employers are typically assigned a standard new-employer tax rate, which can later adjust based on your claims history as you continue operating.

Step 6: File Ongoing Wage Reports and Pay the Tax

After registering, most states require periodic wage reports, commonly quarterly, along with payment of any unemployment insurance tax due. Withholding tax, where it applies, is generally remitted on a schedule tied to how much you withhold, similar in structure to federal payroll tax deposit schedules.

Step 7: Register Separately for Workers' Compensation

State employer tax registration covers unemployment insurance and, where applicable, withholding, but it's a separate process from registering for workers' compensation insurance, which in most states is handled through the state's insurance department or a workers' compensation board rather than the tax or labor agency.

Multi-State Employers Register in Every State Where They Have Employees

If you have employees working in more than one state, you generally need a separate state employer tax registration in each state where those employees work, not just the state where your business is formed or headquartered.

New Employer Rates Change Over Time

The unemployment insurance rate you're assigned as a new employer is typically not permanent; many states adjust it after a few years based on your claims history. Budget for the possibility that your rate changes, rather than assuming your initial rate is fixed indefinitely.

Registering Late Can Trigger Penalties and Interest

Missing your state's registration deadline, such as Texas's 10-day window after becoming liable, can result in penalties or interest once the state identifies the gap, even if you eventually register and pay what's owed. Registering as soon as you know you'll have employees avoids this.

This Is Not Tax Advice

State employer tax rules, including registration deadlines, rates and reporting schedules, vary and change over time. Talk to a payroll provider or tax professional to confirm your specific state's current requirements, especially if you operate in more than one state.