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EQUIS Tax LLC is a Massachusetts-based accounting firm specializing in taxation.  EQUIS services include tax compliance/preparation, tax planning, tax resolution, audit representation, accounting/bookkeeping, and related professional services for Individuals, Businesses, Estates, Trusts, and Non-Profits.

Located in Lynnfield, Massachusetts, EQUIS serves clients throughout the United States. EQUIS tax accountants, along with their 3rd party affiliates, provide a collaborative team of highly qualified professionals to help clients meet all of their tax, business, estate, legal, and financial planning needs.


Established in 2000, EQUIS is a family practice dedicated to providing a high level of service to its clients, year-round.  EQUIS tax accountants are federally licensed with unlimited rights to practice before the Internal Revenue Service in all 50 States, and can represent taxpayers before the IRS worldwide.





Lawrence J. Drinkwater, Jr., EA

Principal & Tax Accountant


Larry Drinkwater, the founder and principal of EQUIS, is a federally licensed Enrolled Agent with more than 40 years of business management, tax, and accounting experience, supporting organizations ranging from small start-ups to Fortune 50 enterprises.  Larry specializes in business consultation, and advises EQUIS clients in all areas of Individual, Business, and Estate taxation.


Marc L. Drinkwater, EA

Tax Accountant


Marc Drinkwater joined EQUIS in 2005 to coordinate the firm’s tax research function.  Marc became federally licensed as an Enrolled Agent in 2013.  His knowledge and application of tax law, case law, and revenue rulings span a wide range of Individual, Business, and Estate tax topics.  Marc collaborates with Larry in support of all EQUIS clients.


Karen A. Drinkwater

Office Manager


Karen Drinkwater joined EQUIS shortly after its formation in 2000 to manage office administration, and to help maximize the firm’s productivity during the tax filing season.  All scheduling is coordinated directly through Karen.

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