
Clean books, clear numbers, and the financial confidence to run your business — without spending your time in a spreadsheet.
I'm Michelle Ouellette, founder of MO Bookkeeping Services, LLC. With over 20 years in finance operations across SaaS, distribution, and mission-driven small businesses, I've seen firsthand how clean books and reliable reporting change the way business owners make decisions.
I launched MO Bookkeeping to bring the same level of financial rigor I applied in corporate environments to small and growing businesses — without the overhead of a full-time hire.
I'm tech-savvy and genuinely excited about where this industry is headed — including using AI as a tool that makes bookkeeping faster and more accurate, never as a replacement for the judgment and specialized knowledge you're paying for. I embrace change and love solving the financial puzzles that come with running a business.
We're based in Tewksbury, MA and work with clients locally and remotely. I don't just want to keep your books — I want to be a true partner in your success. Whether you need a monthly bookkeeping partner or help getting your accounts untangled, I'd love to connect.

From keeping your books current to managing payroll and AR/AP — we handle the financial back-office so you can focus on growth.
Every package includes a full month-end close and your core financial statements — not just transaction entry and reconciliation. Clean books mean closed books, and we believe that shouldn't be an upsell. Choose the tier that matches your transaction volume or your business complexity, whichever is higher.
Each tier builds on the one before it — Standard includes everything in Essential, and Advanced includes everything in Standard, plus the added scope shown below.
Not every need fits a monthly retainer. These are quoted individually after a scope call, based on the size and condition of your books.
The best first step is a short discovery call — no obligation, no pressure. We'll talk through where your books are today, what you need, and whether we're a good fit.
Reach out by phone or email and I'll get back to you within one business day.