Tax Internship - Winter 2026

Job Title:  Winter 2026 Tax Internship

Office Location: Needham, MA

About Grassi

After more than 40 years of business growth and industry change, Grassi has redefined what it means to be an advisor and accountant to today’s businesses and individuals. Nationally ranked as one of the largest and fastest-growing accounting firms in the nation, Grassi is a leading provider of advisory, tax, and accounting services across key sectors including construction, architecture and engineering, not-for-profit, healthcare, manufacturing and distribution, financial services, real estate, and more. Several publications have ranked us among the top accounting firms to work for, highlighting our strength in work-life balance, culture, and wellness categories. 

With over 550 employees and nine offices spanning the New York Metropolitan Area, Long Island, the Northeast, Florida, New England, and an international presence in Italy, we are strategically positioned to serve clients locally and globally. In 2023, Grassi became an employee-owned company by implementing an ESOP, establishing our independence and empowering our people to drive the firm’s future success. The ESOP ensures that equity partners and all Grassi U.S. employees have the exclusive opportunity to own the firm’s stock, making them integral to the company’s future.

Job Description 

Grassi’s Tax Department is expanding and looking to hire a busy season tax intern to work with our team and help support the department in a variety of ways. Interns will be scheduled on a variety of industries and clients while working in small groups with other Associates, Semi Seniors, Seniors, Supervisors and Managers. Interns will assume responsibility for appropriate level areas of tax administrative items and client deliverables including preparation of tax returns, including individuals, partnerships, and corporate tax returns. During this time, the staff will focus on developing skills, building their technical knowledge, understanding, and executing diligent client service, and getting oriented to the firm’s practices, policies, and culture. Work is performed under close supervision.  

Qualifications 

• Pursuing a bachelor's or master's degree in accounting.
• Minimum GPA of 3.0.
• Available 20-30 hours per week from January - April
• Ability to work independently and within a team environment.
• Strong interpersonal, organizational, initiative and leadership skills.
• We do not sponsor or transfer work visas.

Job Responsibilities  

• Prepare client deliverables that are clear, concise, thorough, and of professional quality for portions of tax returns.
• Filing, faxing & scanning. 
• Using discretion when working with confidential information concerning the company, executive management, and employees. 
• Pull financial information and communication with the client. 
• Work effectively in team environment by building and maintaining rapport with fellow employees.
• Focus on developing skills, building technical knowledge​.
• Proactively demonstrate a willingness to learn and attain greater knowledge on a continual basis and look to build technical skill base.

Why Grassi?

Our firm is consistently ranked by Vault.com and the Best Places to Work group for our commitment to compensation, paid time off, work-life balance, culture and more. Some of the ways we accomplish this include:

Flexibility: Our work-life balance initiatives include generous paid time off, flexible “Dress for Your Day” dress code, telecommuting options, flex-time policies, and summer hours, enhanced by our Floating Summer Friday’s program, which allows team members three extra Fridays off during the summer months in addition to their PTO.

Company Culture: Here at Grassi we are dedicated to creating an environment for our team members that is positive, productive, and aligns with our company’s high standards of inclusivity, diversity, and equity. We work closely with our DEI Council and Grassi Women’s Council to organize events throughout the year to bring the firm together for open dialogue and awareness of global diversity issues. Through our charitable initiative, Grassi Gives Back, we proudly support organizations such as Ronald McDonald House, Toys for Tots, Autism Speaks, Long Island Cares, and many of our nonprofit clients.

Benefits Package: Competitive base compensation with eligibility for a raise and bonus each June or December based on performance metrics and level. Medical, Dental, and Vision Insurance, employer contribution to life insurance, 401(k) plan, ESOP, and client and employee referral bonus program. 

ESOP Owned: The ESOP ensures that equity partners and all Grassi U.S. employees have the exclusive opportunity to own the firm’s stock, making them integral to the company’s future. Unlike many other ESOPs, Grassi’s is privately funded, with no outside investors or private equity firms involved in the plan.

CPA Incentive: Financial assistance toward the achievement of the CPA certification which includes the cost of the CPA study materials, CPA exam registration and sitting fees for all 4 parts (up to 2 x per part), plus the CPA application and licensing fees.  Paid study time during work hours, additional paid time off to take your scheduled exam and a bonus paid upon passing the CPA exam.

Learning and Development: We offer Continuing Professional Education (CPE) opportunities, including both technical and soft skills training. These opportunities are available through internal courses and external programs led by well-known industry instructors, all at no cost to our employees.

Wellness Resources: Discounted gym memberships and various wellness initiatives and programs such as the CALM app that helps our team members lower stress, decrease anxiety, improve focus, and get more restful sleep.