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CPA Managed Firm · Boston, Massachusetts

Boston's

trusted CPAs & EAs.

Expert tax services for Boston businesses, individuals, and biotech professionals. Licensed Massachusetts CPAs & EAs serving Back Bay, Cambridge, and the Greater Boston area.

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Greenwich
Chicago
New York City
Houston
Los Angeles
Miami
Dallas
Austin
Seattle
San Francisco
Washington DC
Phoenix
Boston
Detroit
Greenwich

Boston's CPA Managed Firm.

Massachusetts imposes a 5% flat income tax — but high earners now face a 4% surtax (totaling 9%) under the 2022 Millionaires' Tax. Boston's biotech, healthcare, and higher-education economy creates complex equity compensation and nonprofit tax situations.

handled right.

Boston tax,

The 4% Millionaires' Tax plus federal rates up to 37% make proactive planning essential.

$1.9M+

Saved for Boston clients last year

610+

Active Boston clients

Back Bay Office

Biotech & life sciences tax.

R&D credits, pre-IPO equity.

Pre-IPO equity, R&D credits, and clinical trial cost accounting — we know the Boston biotech and life sciences landscape.

MA Millionaires' Tax: +4%.

On income above $1M.

We plan around the surtax.

Massachusetts' 2023 surtax adds 4% on income above $1M. High-income Boston residents need proactive planning now.

Local expertise

Why a Boston CPA matters.

Massachusetts' Millionaires' Tax — a 4% surtax on income above $1M — was a game changer for Boston's high earners. Combined with the biotech sector's equity complexity, Boston demands specialist tax planning.
  • Massachusetts imposes a 5% flat income tax + 4% millionaire's surtax on income above $1M — top earners face a 9% state rate
  • Biotech and life sciences companies have unique R&D credit and IPO equity situations requiring deep specialist knowledge
  • Massachusetts has its own estate tax with a $2M exemption — far lower than the federal exemption, and trips up many estates
  • Higher-education employees face complex 403(b), TIAA, and pension planning — different from typical corporate retirement plans
  • Cross-border workers from NH, RI, or CT need multi-state filing and credit calculations — easy to overpay without proper planning
Boston-area tax rates
Federal income tax (top)

37%

MA income tax (standard)

5%

MA Millionaires' Tax surtax

+4%

MA combined top rate

9%

MA corporate excise tax

8%

Self-employment tax

15.3%

Boston's high earners face a combined 9% Massachusetts rate under the Millionaires' Tax. Combined with federal rates up to 37%, proactive planning is essential for income above $1M.

Boston

clients.

Book a call
Ellen at Taxperts structured our QSBS correctly, filed our 83(b) elections, and identified $340K in federal R&D credits in our pre-revenue stage. She understands biotech accounting at a level most CPAs simply don't.
WL
William L.
Co-founder, Cambridge Biotech Startup
The Millionaires' Tax hit me hard in 2023 — I had no idea. Taxperts restructured my practice income, optimized my pension contributions, and reduced my effective MA rate significantly. Professional help is essential now.
NR
Nancy R.
Cardiologist, Back Bay

Boston

tax questions.

What is the Massachusetts Millionaires' Tax and how do I reduce it?

Massachusetts voters approved a 4% surtax on individual income above $1M, effective 2023. This brings the top MA rate to 9%. Strategies to minimize it include: timing income across years to stay below $1M, maximizing retirement contributions (which reduce AGI), charitable remainder trusts, and installment sales for business exits. We plan around the threshold proactively.

Does Massachusetts conform to the federal R&D credit?

Yes — Massachusetts offers its own R&D credit at 10% of qualifying R&D expenditures (15% for biotech companies meeting certain criteria). It can be carried forward 10 years. Combined with the federal R&D credit, Boston biotech companies can recoup a significant portion of their research spending. We evaluate eligibility for every life sciences client.

Massachusetts doesn't conform to bonus depreciation — what does that mean?

Massachusetts does not follow federal bonus depreciation rules (100% immediate expensing). For federal purposes, you may deduct a large asset purchase fully in year one; for Massachusetts, you must depreciate it over its useful life. This creates different federal vs. state deductions — something we account for in all MA business tax filings.

I received fellowship income from Harvard or MIT — is it taxable?

Qualified scholarship income used for tuition and fees is generally not taxable. However, stipends and fellowships used for living expenses, research, or other purposes ARE taxable as ordinary income — federally and under Massachusetts. Additionally, international fellows may owe US tax subject to treaty provisions. We handle academic fellowship tax for Boston's university community regularly.

Ready to stop stressing

about taxes?

Book a free 30-minute consultation with a Taxperts CPA or EA. Virtual or in-person, your choice. No obligation.