Costello John Tax Associates is a full-service accounting firm based in Somerville, MA, offering a wide range of services for business owners, executives, and independent professionals. With a focus on personal financial planning, estate planning, small business accounting, tax services, and more, the firm provides affordable, experienced, and friendly assistance to meet the diverse needs of its clients.
Specializing in IRS audit representation, tax preparation, business valuation, and strategic business planning, Costello John Tax Associates is dedicated to helping individuals and businesses navigate complex financial matters with expertise and professionalism. Clients benefit from secure document storage, convenient file sharing options, and access to a team of knowledgeable professionals committed to delivering exceptional service.
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