Bookkeeping and controller services in Boston
Updated 24 September 2026
Life sciences, education, professional services and a dense restaurant and studio economy.
What filing here actually involves
- Massachusetts charges a corporate excise measured on both income and net worth, so the balance sheet matters as much as the P&L.
- Sales tax is 6.25% with no local add-on, which is simpler than most states on this list.
- Massachusetts applies a strict test to independent contractors, and misclassified 1099 work shows up first in the books.
Rates and thresholds move. We confirm what applies to your entities at onboarding and keep the books in the condition those filings need. Averan is not a CPA firm and does not file returns.
What we see in Boston books
Grant-funded and milestone-billed work is common, and revenue recognition on it is where most Boston closes go wrong.
- Books current, reconciled, and closed on the date agreed
- Location- and entity-level P&Ls built on one chart of accounts, so units compare
- A cash forecast that carries the months the season or the project cycle takes out
Who we work with here
Across the metro, including Cambridge, Somerville, Newton, Quincy, Waltham. The engagement runs remotely, with calls on your working hours.
Questions we get asked
Do you need to be in Boston to do our books?
No. The work runs on your accounting file, your bank feeds and scheduled calls. What needs local knowledge, Massachusetts filing rules and local obligations, is a matter of knowing the jurisdiction.
What Massachusetts filings do you track?
We track the liability and keep the books in the condition your filings need. Massachusetts charges a corporate excise measured on both income and net worth, so the balance sheet matters as much as the P&L. Filing itself stays with your CPA or a sales tax specialist.
Which Boston businesses do you usually work with?
Mostly life sciences and research services, professional services, restaurants and studios. If your business earns the way those do, the mechanics are the same whatever the label.
Do you work across the metro?
Yes, including Cambridge, Somerville, Newton, Quincy, Waltham. Engagements run remotely across the region and in every state.
Want the books off your plate?
A short call. We will tell you honestly whether we can help. (202) 538-1348
Free Consult →Nearby
- New York
- Philadelphia
- Washington, DC
- Bookkeeping, monthly close on a date you can count on
- Controller, when the numbers need reading as well as recording
- All locations
If you want this done for you
What happens next
Filing rules are the part nobody warns you about. We keep the books that sit underneath them, wherever the business is.
- The call, twenty minutesYou describe the business and where the numbers are letting you down. We tell you honestly whether we can help, and what we would start with. No pitch deck.
- We look at the fileYou give us read access to the books as they are. We come back with what is wrong, what it will take to fix, and whether the answer is bookkeeping, controller work, or something else.
- A written scope and a priceWhat we do each month, what you get, the date it lands, and the fee. Agreed before anything starts, and it does not move without you agreeing it.
- Transition, then the first closeAccess, systems, and the opening balances. The first close lands on the date in the scope, and every one after it does too.
Averan is not a CPA firm and does not file taxes. Your CPA keeps that, and we keep the books they file from.