Do I Need a State Tax ID for My LLC? 

Usually, you need a state tax ID only if your LLC has a state-level tax registration requirement in a particular state. There is no single nationwide “state tax ID.” States commonly issue separate account numbers (or permits) for different taxes.  

When you typically need to register for a state tax ID

You generally need a state tax registration (and will receive a state account number/permit) if, in that state, your LLC:  

• has employees (state employer withholding registration is commonly required when you pay wages)  

• makes taxable sales (sales and use tax permit/certificate is commonly required before collecting sales tax)  

• is subject to a state-imposed business tax or fee (for example, certain franchise/privilege taxes or annual entity-level taxes), which is state-specific  

How this relates to a federal EIN

A federal EIN is not the same as a state tax ID. Depending on your situation, the IRS may require an EIN (for example, if the LLC has employees or is required to file certain excise tax forms). Some single-member LLCs with no employees and no excise tax filing requirement may not need a separate EIN, although an EIN can still be obtained. A tax professional well-versed on the subject can give you advice suitable for your business structure.  

Practical steps

1. Identify the state(s) where your LLC is doing business and may have tax registration obligations.  

1. Go to each state’s official tax agency website and look for business registration for the specific tax type (withholding, sales and use tax, etc.).  

1. Register before collecting sales tax or running payroll, as applicable, and keep the account/permit numbers issued.  

State Law Note  

State tax IDs, sales tax permits, and employer withholding registrations are administered at the state level. The controlling authority is the applicable state revenue department/tax agency (and, for unemployment insurance employer accounts, commonly the state workforce/unemployment agency). Requirements and terminology vary by state. For more information, speak to our expert team at Monily.  

Sources   

• IRS — Employer Identification Number (EIN) (definition of EIN as a federal tax ID)  

• IRS — Get an employer identification number (when to get an EIN)  

• IRS — Single-member LLCs (EIN need if employees or certain excise tax filings; disregarded entity context)  

• IRS — Entities FAQs (EIN need for multi-member LLC; when a single-owner LLC may not need an EIN)   

• IRS — Instructions for Form SS-4 (EIN application; EIN used for tax filing/reporting)  

• California Department of Tax and Fee Administration — Register for a permit/license/account (example of state tax registration/permit issuance)  

• New York State Department of Taxation and Finance — Register as a sales tax vendor (example of state sales tax registration)