CPA Guide
Top CPA Firms in Massachusetts
Find trusted, highly-rated Certified Public Accountants across Massachusetts. Independently reviewed and ranked by our editorial team.
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CPA Services in Massachusetts
Massachusetts combines a high-cost, high-income economy with a relatively flat income tax rate (recently increased to 9% for income over $1 million), creating a complex planning environment particularly for high earners and entrepreneurs. The state is a global leader in biotechnology, healthcare, education, finance, and technology, with Boston serving as one of the world’s premier innovation hubs.
The state’s strong venture capital ecosystem means many Massachusetts CPAs specialize in startup taxation, equity compensation, and the financial needs of founders navigating liquidity events. For individuals and businesses, the interplay of state and local taxes — including Boston’s unique commercial real estate levy — requires expert guidance from a knowledgeable local CPA.
Top 6 CPA Firms in Massachusetts
Ranked by our editorial scoring system based on verified ratings and review volume
#1
DISTINCTIVE ACCOUNTING SERVICES
★★★★☆ (212 reviews)
📍 539 Massasoit Rd, Worcester, MA 01604
📞 (508) 514-1488
AccountantTax PreparationBookkeepingTax Consultant
#2
Superior Tax and Accounting Services
★★★★☆ (173 reviews)
📍 1550 Main St #104, Springfield, MA 01103
📞 (413) 732-0859
Tax PreparationAccountantBookkeepingFinancial Consultant
#3
Anomaly CPA
★★★★★ (62 reviews)
📍 22 Boston Wharf Rd 7th floor, Boston, MA 02210
📞 (781) 694-2203
Accountant
#4
Hajiani CPA LLC
★★★★☆ (60 reviews)
📍 90 Canal St 4th Floor, Boston, MA 02114
📞 (617) 510-5786
Certified Public AccountantAccountantTax PreparationFinancial Consultant
#5
Simon CPAs
★★★★☆ (64 reviews)
📍 361 Newbury St 5th floor, Boston, MA 02115
📞 (781) 428-3655
Certified Public AccountantAccountantAccounting
#6
Osborn Associates
★★★★☆ (62 reviews)
📍 415 Bridge St, Lowell, MA 01850
📞 (978) 458-7168
Tax Preparation
🏆 How We Selected These Firms
Our editorial team evaluates CPA firms across Massachusetts using a proprietary scoring model that considers:
✓ Google rating — only firms with 4.0 stars or higher are eligible
✓ Review volume — scored using a logarithmic formula to reward genuine review depth
✓ Verified address — firms must have a confirmed physical location
✓ No paid placements — rankings are editorial only, never paid
Last updated: 2025 | Data sourced from verified public business listings
Massachusetts CPA & Tax FAQ
Q: What is Massachusetts’s income tax rate?
Massachusetts historically had a flat income tax rate of 5%, but a 2022 ballot measure added a 4% surtax on income over $1 million, bringing the effective top rate to 9%. This ‘millionaires tax’ applies to all income over $1 million — including capital gains and business income. The change has significant implications for high earners and business owners facing liquidity events.
Q: How does Massachusetts treat capital gains?
Massachusetts has a unique treatment of short-term capital gains, taxing them at 12% (higher than the federal rate for many taxpayers). Long-term capital gains are taxed at the standard 5% income tax rate. There’s no preferential rate for qualified dividends. Plus, gains above $1 million face the additional 4% surtax.
Q: What should Massachusetts entrepreneurs know about stock options?
Massachusetts taxes incentive stock options (ISOs) differently from the federal government. While federal law provides AMT treatment for ISOs, Massachusetts imposes regular income tax on the spread when ISOs are exercised. This means Massachusetts employees exercising ISOs may owe Massachusetts tax in the exercise year even if they plan to hold the shares — often a significant surprise without proper planning.
Q: Does Massachusetts have a sales tax?
Massachusetts has a 6.25% sales tax on most tangible goods, with exemptions for food, clothing under $175 per item, and prescription drugs. Services are generally not taxed. Massachusetts has an annual sales tax holiday weekend where most purchases under $2,500 are exempt.
Q: What is the Massachusetts excise tax on vehicles?
Massachusetts imposes an annual excise tax on all registered motor vehicles at a rate of $25 per $1,000 of vehicle value. This is in addition to registration fees and is billed by the municipality where the vehicle is registered. The assessed value is based on a schedule related to the manufacturer’s list price, decreasing over time as the vehicle ages.
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