| Massachusetts State Tax Registration |
| What Tax Identification Numbers do I need in the state of Massachusetts? |
You need two separate Tax Identification Numbers in the state of Massachusetts:- State Income Withholding Tax
- State Unemployment Insurance Tax
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| How do I get my Income Tax Identification Number? |
You can register online at the MassTax Connect website. Contact the agency directly at 1-617-887-6367 for registration assistance or to check if a tax identification number is already assigned for your business.
Normally, you'll receive your Account ID instantly after registering.
The Tax ID used to be the same as your Federal EIN. Under the new MassTax Connect system, new employers and many existing employers are being assigned new 14-digit account numbers formatted as WTH-XXXXXXXX-003. |
| How do I get my Unemployment Tax Identification Number? |
You can register online at the Department of Unemployment Assistance (DUA) website. The department published a step-by-step instruction guide with further details. Contact the agency directly at 1-617-626-5075 for registration assistance or to check if a tax identification number is already assigned for your business.
Normally, you'll receive your Unemployment Insurance Account Number instantly after registering. |
| What Tax Rates do I need in the state of Massachusetts? |
You only need to know one tax rate assigned for the current year:- State Unemployment Contribution Rate
Your contribution rate will be assigned when you register and will be updated on an annual basis from the Massachusetts Department of Unemployment Assistance (DUA). Contact the agency directly at 1-617-626-5075 to verify your current rate. |
| How do I update my payroll account? |
| Send any tax identification number or tax rate updates to your Account Executive or email [email protected]. |
