Massachusetts Payroll Tax Registration

Nov 13, 2025

If you have recently hired an employee in Massachusetts, you will need to register for payroll taxes with the state. Payroll tax registration is required for all employers in Massachusetts to ensure compliance with state tax laws and to properly withhold and remit taxes on behalf of your employees.

Zero payroll penalties, zero distractions.

How Massachusetts Payroll Registration Works

There are 3 payroll tax setup tasks you may need to complete in Massachusetts to get your new hire on payroll for the first time. You can follow the guide below to help you get registered directly with the Massachusetts agencies or use Mosey to do it.

Massachusetts Paid Family and Medical Leave Setup for PLLC, Professional Corporation, LLP, LLC, Corporation

If you have employees in Massachusetts, you are required to register an account for Paid Family and Medical Leave (PFML), a program offering up to 26 weeks of paid leave for family or medical reasons to eligible employees. Employers with less than 25 employees in Massachusetts have no contribution obligation, but are required to withhold and remit 0.344% of wages as the employees' contribution. Employers with 25 or more employees are required to remit 0.68% of wages as the PFML contribution. Employers are allowed to split the contribution with employees, with the employee portion capped at 0.344% of wages. Note: Employers can apply for an exemption from PFML contributions if they offer approved private plans with paid leave benefits that are equal to or more generous than those of the state PFML program.

  1. Set Up a Paid Family and Medical Leave Account

    New employers in Massachusetts typically get their Paid Family and Medical Leave account while registering for Withholding Tax. To set up a new Paid Family Medical Leave account, log in to your MassTaxConnect account and select "More.." and then "Add a new account" under the "Access" section.

  2. Setup Employer-Employee Contribution Split with Your Payroll Provider

    If you elect to cover your employees' Paid Family Medical Leave contribution in part or in full, you will need to configure it with your payroll provider.

Massachusetts Unemployment Insurance Setup for PLLC, Professional Corporation, LLP, LLC, Corporation

You are required to register with the Department of Unemployment Assistance for an Unemployment Insurance account if you have at least one employee for some part of a day in each of 13 different weeks during a calendar year or pay wages of $1,500 or more in a calendar quarter.

  1. Register Online with the Department of Unemployment Assistance

    Complete the online Unemployment Insurance Employer Registration to register with the Department of Unemployment Assistance. After completing the registration, you will find on the confirmation page your Employer Account Number, Unemployment Insurance tax rate, permanent User ID, and a system-generated temporary password.

  2. Configure Payroll Software

    Add the Employer Account Number and Unemployment Insurance tax rate (or reimbursable status) to your payroll software provider.

Massachusetts Withholding Tax Setup for PLLC, Professional Corporation, LLP, LLC, Corporation

If you have employees in Massachusetts, you are required to register with the Department of Revenue in order to set up a withholding tax account and a Paid Family and Medical Leave account.

  1. File New Business Registration

    Log in to your MassTaxConnect account to file a New Business Registration online. When prompted, select "Withholding Tax" and "Paid Family & Medical Leave" as the account types to be registered. After completing the registration, you will receive a Withholding account number, Withholding deposit schedule, and a paid family and medical leave account number.

Massachusetts's Payroll Registration Agencies

More from the blog

Learn how to keep your business compliant in all 50 states across payroll, HR, Secretary of State, and tax.

Strategies for Building an HR Department After Leaving a PEO

Building an HR department from scratch can feel overwhelming, especially after leaving a PEO. Complicating matters, every company has its own unique set of challenges—from payroll processes and hiring tools to compliance practices and tech. Needless to say, knowing how to create a strong HR foundation is key to moving forward with confidence. Today, we’re discussing what matters most when designing an effective HR function. Remember, as you transition out of a PEO, you’re going to need a detailed gameplan, one that helps you make smart decisions about policies, technology, onboarding, and more, ensuring you meet every HR need, no matter your company’s size or lifecycle stage. And as always, Mosey is here to lead the way. So let’s get started.

Paul Boynton | May 30, 2025

What Are Fringe Benefits? 20 Types and Benefits

Your salary or payroll is the foundation of your compensation — it’s the primary form of payment you receive for your work. But beyond that basic paycheck, there’s another layer known as fringe benefits. These are additional perks that companies can offer, enhancing the value of a job and making the overall work experience more rewarding. Fringe benefits can have a significant impact on both businesses and employees. For employees, they can mean extra financial support, greater health and well-being, and ways to achieve a better work-life balance.

Kaitlin Edwards | Jun 20, 2024

West Virginia Business Entity License Renewal: Due Date, Expirations, and Fees

Most states have licensing requirements for businesses. Running a business in West Virginia requires owners to maintain an active and up-to-date business entity license. It’s vital to understand the process for renewing this license to avoid interruptions in your ability to operate and potential legal issues regarding your standing. Here’s what business owners need to know about West Virginia business entity license renewal, including due dates, fees, penalties, and how Mosey can help manage state compliance.

Gabrielle Sinacola | Sep 7, 2024

Ready to get started?

Schedule a free consultation to see how Mosey transforms business compliance.