Originally published June 2022. Updated October 2026 with current pricing, benchmarks and the seven signals below.
I have 15 or more of these calls a month. A founder reaches out about bookkeeping. Their firm missed something, or the close is always late, or they just got a quote that felt high.
By the end of the hour we have barely talked about bookkeeping.
We have talked about who to hire next, whether to take Amazon seriously, what a new product line would cost, and whether they even want the business to be bigger. Bookkeeping was just the easiest thing to see. The real question underneath is almost always the same: who is helping me make the money decisions?
That is what a fractional CFO is for. Here is how I’d think about whether you need one.
What a fractional CFO actually does
A fractional CFO is a finance leader you rent part of. You get the decisions without putting a $200,000 to $300,000 executive on payroll.
For an ecommerce brand the job is mostly about cash and margin. When does inventory get bought, and what does that order do to the bank account over the next 13 weeks? Is the last dollar of ad spend making money, by channel, or is a blended ROAS hiding a problem? Are the margins you think you have actually real once freight, tariffs and 3PL fees land?
The deliverables are concrete. A rolling 13-week cash flow forecast, updated weekly. An annual budget with plan-vs-actual every month. Scenario models before big commitments. The lender and investor reporting when you need a credit line or a raise.
What a fractional CFO does not do is the bookkeeping. The forecast is only as good as the close underneath it. That is why most of our clients hire the CFO and the accounting team together, and why I’ll tell a founder with messy books to fix those first.
Seven signs you’re past the point of needing one
If two or more of these are true, finance has fallen behind the business.
- You’re placing six-figure inventory orders on instinct. Nobody has modeled what the order does to cash over the next quarter. When you were under a million, a big call was ten grand of inventory. Now it’s a container.
- Revenue is up and profit isn’t. You can’t say, by channel, whether last month’s ad spend made money. A blended CPA looked fine right up until someone split new customers from returning ones.
- Your books are cash basis, or COGS is a plug. Gross margin moves every month and nobody can explain why.
- A lender or investor asked for a forecast, a budget or a covenant report. Your bookkeeper can’t produce one, and shouldn’t have to.
- You sell through more than one channel. Shopify, Amazon and wholesale all settle differently, and the P&L stopped tying to the bank a while ago.
- You’re adding an entity, a country or a warehouse. Intercompany, currency and landed cost are about to show up whether you planned for them or not.
- You make every money decision alone. Your agency, your 3PL and your suppliers all have an opinion on how you spend, and every one of them has a stake in the answer.
Most brands hit two of these somewhere between $5M and $10M in revenue. Some hit them earlier because of complexity, not size. A $4M brand with three channels and two entities needs this before a $12M brand with one Shopify store does.
What it costs, honestly
For a $10M to $50M brand, a fractional CFO runs $5,000 to $10,000 a month. With the accounting team included, $7,500 to $15,000. The spread is about scope, not revenue.
I wrote up exactly how we build those numbers, what the market charges, and what a full-time hire really costs on the fractional CFO cost page.
And if you’re weighing a full-time hire, a solo fractional CFO or a generalist firm against a team, I laid the four options side by side on cost, ecommerce depth, coverage and what happens when the person leaves. That one is here.
One more thing before you decide
A fractional CFO is only worth it if you’ll use them. The founders who get the most out of us are the ones who bring the hard questions to the weekly call instead of sitting on them.
If you’d rather keep making those calls alone for now, that’s a legitimate choice. Just know that indecision shows up on the P&L too. It’s usually the most expensive line on it.
Watch: the role of CFO services for ecommerce brands
This is the conversation that started this post, back in 2022, with Amy from Amazing at Home. The ideas hold up. The numbers above are the 2026 version.
