Bookkeeping, payroll, and fractional CFO services for the Merrimack Valley and Greater Boston.

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Bookkeeping for Seaport Businesses

Bookkeeping and financial strategy for startups and growing businesses in Boston's Seaport District. Monthly financials, payroll, and CFO-level support.

Bookkeeping for the Seaport

The Seaport has become Boston’s hub for startups and growing companies. Biotech firms, software companies, agencies, and restaurants have all moved into the district. What most of them share is growth and the financial complexity that comes with it.

We’re an Andover, MA bookkeeper who works with businesses across Greater Boston. For Seaport companies, we provide the monthly bookkeeping, payroll, and financial oversight you need without adding full-time headcount. Everything happens remotely, which fits how most Seaport businesses already operate.

Monthly Bookkeeping

Transaction categorization, bank reconciliation, and monthly closes that actually happen on time. Financial statements you can share with investors or lenders without scrambling to clean things up first.

Financial Strategy

Fractional CFO support for companies that need more than bookkeeping. Cash flow forecasting, budget development, KPI tracking, and the financial guidance that helps you make better decisions as you scale.

Multi-State Payroll

Seaport companies often have team members working remotely across the country. We handle payroll processing, tax deposits, and state-by-state compliance so you can hire where the talent is.

Sales Tax Compliance

Nexus determination, registration, and filing across multiple jurisdictions. If you sell products or services in states beyond Massachusetts, we keep you compliant without you tracking every deadline.

Seaport Businesses We Work With

The Seaport attracts businesses at inflection points. Companies growing fast enough that the founder can’t manage the books anymore, but not quite ready to hire a full-time controller. That gap is exactly where we operate.

We’ve spent years working with high-growth companies through ownership changes, funding rounds, and rapid scaling. That experience shapes how we approach financial strategy for Seaport businesses that need more than basic bookkeeping.

Tech and SaaS Companies

Software companies, app developers, and SaaS businesses with recurring revenue models. We track MRR, manage deferred revenue, and produce financials that match how investors evaluate your business.

Professional Services

Law firms, consulting practices, marketing agencies, and architecture firms. Project-based revenue, utilization tracking, and partner-level reporting that shows where the business actually stands.

Biotech and Life Sciences

Early-stage companies burning through grant funding or venture capital. We maintain the financial controls and reporting standards that institutional funders expect to see.

Restaurants and Hospitality

The Seaport dining scene keeps expanding. High volume, tight margins, tip compliance, and food cost tracking. We keep the numbers current so you know which weeks work and which don’t.

Common Questions

You're based in Andover. Why would a Seaport business work with you?

Bookkeeping happens digitally. Most Seaport businesses already work with distributed teams, so a bookkeeper up the road in Andover fits right into how you already operate. We're a 30-minute drive if you want to meet, but most communication happens through screens anyway.

Do you work with venture-backed startups?

Yes. We help startups get their books investor-ready and maintain the financial reporting standards that VCs and board members expect. Clean monthly closes, accurate burn rate tracking, and financials that hold up to scrutiny.

What about companies with employees in multiple states?

Multi-state payroll and compliance is one of our strengths. If you have team members scattered across the country, we handle the registration, withholding, and filing requirements for each state.

How much does monthly bookkeeping cost?

It depends on transaction volume and complexity. We quote flat monthly rates after learning about your business so there are no surprises.

Can you help prepare for due diligence?

Yes. We've supported due diligence processes for acquisitions and funding rounds. Clean books, organized documentation, and financial records that withstand examination.

The Merrimack Valley's Trusted Accounting Partner

The Next Step:
A 15-Minute Call

Tell us about your business and what you're dealing with. We'll listen, ask a few questions, and give you a straightforward quote.

Vast Accounting provides bookkeeping, payroll, and fractional CFO services for small businesses across the Merrimack Valley and Greater Boston. We combine 15+ years of hands-on finance experience with a genuine commitment to helping local businesses succeed.

Client Reviews

5-Star Rated Firm

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