Massachusetts First Employee Checklist in 2026: State Accounts to Open Before Payroll

August 19, 2026

The Massachusetts First Employee Checklist catches small businesses before they run their first payroll. The state requires new employers to register with multiple agencies before the first paycheck is issued. Each registration is separate. Each has its own deadline. Missing one creates a penalty that starts the day the first wages were paid.

Most business owners assume the federal employer ID number covers everything. It does not. Massachusetts requires a state tax ID for income tax withholding, a state unemployment account with the Division of Unemployment Assistance, and a new hire reporting submission within 30 days of the first day of work. Each is tracked independently. Each penalty compounds if missed. This Massachusetts first employee checklist covers every state account that must be open before payroll runs, the registration sequence, and the deadlines that drive them.

Federal EIN First: The Credential Everything Else Depends On

The federal Employer Identification Number must be obtained before any Massachusetts employer registration can be completed. The EIN is the single identifier that links every state account back to the same business. The IRS issues EINs through its online system, typically within one business day. Apply at irs.gov on the same day the LLC formation documents are filed with the Massachusetts Secretary of the Commonwealth. The EIN does not require Massachusetts-specific information and takes less than 15 minutes to complete. Record the EIN in the LLC’s corporate records immediately. The EIN appears on every state registration form, every payroll tax filing, and every W-2 issued to employees.

Massachusetts Department of Revenue Withholding Account

Every Massachusetts employer must register for a state income tax withholding account with the Massachusetts Department of Revenue. Massachusetts levies a 5% flat income tax on wages earned in the state. The employer is required to withhold that tax from each paycheck and remit it to the DOR. The registration is completed through the DOR’s MassTaxConnect online portal. The employer provides the federal EIN, the business type, the estimated annual wages, and the date the first payroll was or will be run. The DOR issues a Massachusetts withholding account number, which is the federal EIN with a state-specific suffix. The first withholding deposit is due in the month following the first payroll run. The employer deposits monthly or semi-weekly depending on the lookback period. New employers start on a monthly deposit schedule and transition to semi-weekly after a lookback period. The Massachusetts withholding account number must appear on the state wage reporting section of the W-2 form. Box 15 on the W-2 includes the state wages and state income tax withheld using Massachusetts-specific codes.

Massachusetts Division of Unemployment Assistance Account

Massachusetts requires every employer to contribute to the state unemployment insurance program through the Division of Unemployment Assistance. The contribution rate for new employers is set by the state and recalculated annually based on the employer’s claims experience. The DUA registration is separate from the DOR registration. The employer registers through the MassTaxConnect portal as well, but the account is maintained under the DUA. The employer reports wages quarterly and pays the unemployment contribution on the same schedule. The quarterly wage report is due on the last day of the month following the quarter end. For the first quarter ending March 31, the report is due April 30. The contribution payment due date matches the report due date for most employers. Massachusetts sets the unemployment wage base each year. For 2026, the wage base is $18,675 per employee. Contributions are owed on wages up to that amount per employee per year. Once the wage base is exceeded for an employee, no further unemployment contributions are owed for that employee for the remainder of the calendar year.

New Hire Reporting Within 30 Days

Massachusetts requires every employer to report newly hired employees to the Massachusetts New Hire Registry within 30 days of the first day of work. The report includes the employee’s name, address, Social Security number, hire date, and expected employment category. The new hire reporting requirement applies to every new employee, regardless of hours worked or wages paid. Even a part-time worker hired for a single day triggers the reporting obligation. The report is filed online through the Massachusetts Department of Revenue’s MassTaxConnect portal. The information is shared with the state’s child support enforcement agency and the DUA for wage verification purposes. Failure to report new hires within 30 days triggers a penalty assessed by the DOR. The penalty accrues monthly until the report is filed. Most first-time violations are modest, but repeat failures result in escalating penalties.

Massachusetts Earned Income Tax Credit Notice

Massachusetts offers a state-level Earned Income Tax Credit to low-income workers. Employers are required to notify eligible employees of the credit within 30 days of hire. The notice is a standardized form provided by the DOR. The notification requirement applies only to employees who will earn wages subject to Massachusetts income tax and who are expected to earn less than the federal EIC income threshold for the taxable year. The employer must provide the notice in person or by mail, not through electronic means alone unless the employee has agreed. The notice does not require any action from the employer beyond providing the form. Keeping a copy of the notice with the employee’s hiring records satisfies the requirement.

Workers’ Compensation Insurance Requirement

Massachusetts requires every employer to carry workers’ compensation insurance the moment the first employee is hired. This is not optional. It is not a registration. It is a commercial insurance policy purchased from a private insurer. The workers’ compensation policy covers medical expenses and lost wages if an employee is injured or becomes ill because of their work. The policy must be in place before the first payroll is run. Some insurers will backdate coverage to the first day of employment, but this should be confirmed before relying on it. Employers who fail to maintain workers’ compensation coverage face penalties from the Massachusetts Department of Industrial Accidents, including stop-work orders and fines. The penalty for knowingly operating without coverage can reach $1,500 per day of violation. The premium is based on the employer’s industry classification, payroll size, and claims history. Retail, construction, and manufacturing classifications carry higher rates than office or professional services classifications.

Massachusetts Anti-Discrimination Notification

Massachusetts employers with six or more employees are subject to the Massachusetts Fair Employment Practice Law. The law prohibits discrimination and harassment based on protected characteristics including race, color, national origin, sex, religion, age, disability, and genetic information. Every employer subject to the law must display the Massachusetts Equal Employment Opportunity poster in a prominent location accessible to all employees. The poster is available from the Massachusetts Commission Against Discrimination website. Employers must also provide all new employees with written notice of their rights under the law within 30 days of hire. This notification is typically included in the new hire paperwork packet.

Federal Payroll Tax Registrations

Federal employer registrations run parallel to the Massachusetts state accounts. The IRS requires employers to register for a withholding account using Form SS-4, which can be filed online through the IRS online registration portal or by mail. The IRS confirms the registration and assigns the employer an account number. The federal unemployment tax account is established automatically when the EIN is issued, but the employer must file Form 940 annually to report the federal unemployment wages paid and taxes owed. The federal FUTA tax rate is 6% on the first $9,500 of wages per employee per year, reduced by a credit for state unemployment contributions paid. The first Form 941 is due in the quarter after the first payroll is run. For most new employers, the first Form 941 is due July 31 for the second quarter of the year. The form reports wages paid and federal income tax and Social Security and Medicare taxes withheld and deposited. The Massachusetts First Employee Checklist is a sequence of registrations, not a single form. Open the DOR withholding account, activate the DUA unemployment account, report the new hire within 30 days, carry workers’ compensation from day one, and post the required notices. Every step has a deadline. Every deadline has a penalty. Running through the Massachusetts First Employee Checklist before the first paycheck eliminates them all. The Massachusetts First Employee Checklist keeps every Massachusetts employer compliant from day one.

Related Reading

• LLC Basics: What Every Business Owner Needs to Know — formation steps and employment decisions before the first hire is made.
• First Payroll Timeline: What to Do Before Your First Payday — the federal and state registration checklist that runs from EIN to first paycheck.
• Annual Report Filing: Deadlines by State — the ongoing compliance calendar for Massachusetts employers after payroll is running.