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Pillar · Finance Function

Bookkeeper, controller, or CFO?

Most practices outgrow their finance function before they realize it. The bookkeeper who was right at $1.5M is not the right seat at $6M with multiple providers and a payer contract negotiation pending. Getting the seat right is the difference between flying blind and making confident decisions.

Bookkeeper records what happened. Controller makes sure it’s accurate and on time. CFO tells you what it means and what to do next.

When each seat fits.

SeatTypical practice sizeWhat it solves
BookkeeperUnder $2MTransactions, basic reports, payroll, A/P.
Controller$2M–$7MAccurate close, controls, monthly reporting, budget variance, lender-grade statements.
Fractional CFO$3M–$25MForecasting, payer strategy, profitability analysis, capital decisions — without the full-time cost.
Full-time CFO$15M+Daily strategic decisions, transactions, board reporting, capital structure.

Warning signs you’ve outgrown the seat.

The three levels of finance support.

Every practice has a finance function whether they realize it or not. The question is whether it’s adequate for the size and complexity of the business. There are three levels:

The mistake most owners make is hiring at one level and expecting work from the level above.

Build, buy, or borrow.

Three structural options:

The right answer depends on revenue, complexity (single location vs multi-site), and where the owner is in the journey (growing, optimizing, preparing for sale).

What good finance work produces.

You know your finance function is working when:

Questions practice owners ask.

When do we need a CFO? When the decisions you’re making are too large to make without modeling, or when you’re preparing for sale, recap, or a major capital event.

Can our accountant do this? Usually not. Tax accountants do tax. The work above is operational finance, which is a different discipline. A good tax accountant is essential; they’re rarely the right person to run the practice’s finance function.

How much should we spend on finance? Most well-run practices spend 1.5–3% of revenue on the finance function (bookkeeping, controller, CFO, software, tax). Under-investing here costs more than it saves.

Finance Function Assessment.

A 15-minute review that matches your current finance seat to the size and complexity of the practice.

Request the assessment