Bookkeeping for businesses in Massachusetts
Massachusetts punches well above its size in biotech and life sciences, with Cambridge and Boston hosting a dense cluster of research labs, clinical laboratories and healthcare systems tied to some of the country's leading hospitals. A strong technology sector has grown up alongside it, and law firms and agencies fill out Boston's professional services base. Massachusetts keeps sales tax simple with a flat 6.25% rate and no local add-ons anywhere in the state, unlike neighbors that stack city and county taxes on top. Income tax is mostly a flat rate too, but a surtax on income above one million dollars adds a layer that higher-earning owners and partners need tracked carefully.
Eastern Time (ET). Our US team works 8am to 8pm ET, covering the entire Massachusetts business day live.
Massachusetts tax and compliance notes
Flat statewide sales tax
Massachusetts charges a flat 6.25% sales tax with no local city or county add-ons anywhere in the state, which simplifies rate tracking compared to states with layered local rates.
Flat income tax plus a millionaire's surtax
Massachusetts personal income tax is a flat 5%, but an additional 4% surtax applies to income above one million dollars, sometimes called the millionaire's tax. Owners and partners near that threshold need income tracked carefully across the year.
Corporate excise tax
Massachusetts corporations pay a corporate excise tax made up of an income component and a smaller tangible property or net worth component, whichever calculation applies. Bookkeeping needs both net income and asset figures kept current.
General notes, not advice. Filing is done by you, your CPA, accountant or registered agent; we prepare the workings.
Industries we serve in Massachusetts
- SaaS and technologyBoston and Cambridge's technology cluster needs subscription revenue and deferred revenue matched cleanly against billing platforms.
- Medical practicesLeading hospital systems around Boston support a dense base of medical practices needing patient billing reconciled against insurance.
- Clinical labsCambridge's biotech and life sciences cluster needs lab billing reconciled against insurance and research grant funding.
- Law firmsBoston's concentrated legal market needs trust accounting kept strictly separate from firm operating funds.
- AgenciesBoston's marketing and consulting agency base needs project invoicing reconciled against client retainers.
Software Massachusetts businesses use
Services for Massachusetts businesses
Frequently asked questions
Do you have an office in Massachusetts?
No, LedgerBPO does not have a local office in Massachusetts. We are the accounting and billing division of SS Support Network LLC, registered in Vancouver, Washington, with a second office in Pakistan that supports our US clients. Your dedicated accountant works remotely inside your own software during your Massachusetts business hours.
Do you track the Massachusetts millionaire's surtax for our owners?
We keep owner and partner income records organized inside your bookkeeping software so your CPA can calculate whether the additional 4% surtax on income above one million dollars applies. Your CPA or tax preparer reviews and files the return; we provide preparation support only.
Can you work with a Boston biotech or clinical lab company?
Yes, we reconcile lab billing, insurance reimbursement and research grant funding for Massachusetts biotech and clinical lab companies inside the software you already use. Your dedicated accountant keeps each funding source separate so reporting stays clean for grant reviewers or auditors.
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