Modern Back Office Co.

Back office, forward thinking

Senior financial expertise, automation-built.

Fractional accounting and CFO-level finance for small businesses and CPA firms in New Hampshire, Massachusetts and Maine.

For my business → For my CPA firm →

Built on a real résumé

CBIZ auditCoca-Cola Beverages NEAlumni VenturesFleet repairIndustrial coatings

For businesses · Pricing

Priced against the role you'd otherwise hire.

Four subscription tiers. Move up as you grow, with the same team and the same context.

Tier Replaces Loaded cost of that hire MBO, starting at Built for
01
Automate & Organize
Automated reconciliation, monthly statements and a clean dashboard. No more books at 11pm on Sunday.
Part-time bookkeeper ~$45K / yr $750/mo $500K–$2M businesses
02
Fractional Accounting
A real month-end close, reviewed financials with commentary, and cash flow forecasting.
Senior accountant $85K–$110K / yr $1,500/mo $2M–$7M businesses
03
Fractional Controller
Ownership of the whole finance function: dashboards, weekly check-ins, audit prep and documentation.
Controller $120K–$160K / yr $3,000/mo $5M–$10M businesses
04
Fractional CFO
Modeling, board materials, capital raise support, and a seat at the table for the big decisions.
CFO $200K+ / yr $5,000/mo Growth-stage and pre-transaction

Not sure which tier fits? We'll tell you straight.

Find my tier →

What we do

Three service lines, one operating philosophy.

01

Fractional accounting subscriptions

Recurring monthly engagement in four tiers, from bookkeeping automation to fractional CFO.

$750–$8,500 / month

02

CPA firm review service

Done-for-you review engagement fieldwork. We produce peer-review-ready workpapers; your partner reviews and signs.

Revenue share, $2,500–$3,000 floor

03

Transformation consulting

Fixed-fee projects: AP automation, close re-engineering, system migrations, finance function builds.

$5,000–$20,000 per engagement

Why MBO

Senior expertise. Modern stack. Predictable price.

A

Senior from day one

Every engagement is owned by someone who has built finance functions, not a junior bookkeeper learning on your dime.

B

Automation-native, not bolted on

We build automation into the finance function from the start, so close is faster, errors are fewer and the system scales with you.

C

One firm as you grow

Move up tiers without changing providers, retraining a new vendor or losing institutional knowledge.

For CPA firms

Wanted: one design partner firm.

We're building a done-for-you review fieldwork service for small CPA firms in NH, MA and ME. One firm helps shape it, in exchange for long-term partnership terms.

Read the partnership pitch →

The first conversation is free.

Whether you run a business or a firm, we'll tell you straight whether we're a fit, and which tier or partnership makes sense if we are.

Start the conversation → (857) 341-0750