The 13-week cash flow forecast is the CFO service clients renew

Ask a firm owner what "CFO services" means and you'll get a paragraph. Ask a client what they bought and you'll get a shrug. That gap is why most advisory offerings stall: the firm sells a relationship, the client wants a deliverable, and nobody can point to the thing.

We run an accounting firm. The first CFO deliverable we sold that clients renewed without being asked was the 13-week cash flow forecast. Not because it's sophisticated. Because it answers the only question a small-business owner asks every Monday: *can I make payroll on the 15th, and what happens if the big customer pays late?*

What it is

A 13-week cash flow forecast is a weekly grid, thirteen columns wide, that starts with the actual bank balance today and walks forward: cash in by source, cash out by category, ending balance each week. Thirteen weeks is one quarter, long enough to see a payroll crunch coming and short enough that the numbers are real rather than aspirational.

It is not a budget. A budget says what should happen this year. The forecast says what will happen to the bank account in the next ninety days given what's already in motion: the invoices outstanding and when they actually get paid, the bills due, the payroll dates, the loan payments, the tax estimate on the 15th, the owner's draw.

Why it's the first advisory product to sell

Three reasons it outsells every other "CFO service" a firm can offer:

1. The client feels the problem weekly. Nobody wakes up worried about their KPI dashboard. Everybody wakes up worried about the bank balance. A deliverable that addresses the actual anxiety gets opened.
2. It has a built-in reason to talk every week. The forecast is wrong the moment it's printed, because a customer paid early or a vendor invoice arrived. Updating it is a fifteen-minute standing call, and that call is where the advisory happens: "if Miller pays late again, we skip the equipment purchase; if they pay on time, we prepay the line."
3. It's the gateway to everything else. Pricing problems, collections problems, over-hiring, under-capitalization all show up in the forecast first. The client sees the problem in their own numbers and asks for help. That's a very different sale than pitching a "margin analysis."

Why most firms don't offer it

The honest reason is that the forecast depends on books that are current to last week, and most firms' books are current to two months ago. A forecast built from stale receivables and a bank balance that hasn't been reconciled since July is a guess with a grid around it, and the first time the client catches it wrong, the service is dead.

The second reason is assembly cost. Built by hand, the forecast means pulling the AR aging, the AP aging, the payroll calendar, the loan schedules, and the bank balance into a spreadsheet, every week, per client. At an hour a week per client, a firm can't offer it to more than a handful.

How to build it from closed books

Where the books close monthly and the bank feed is reconciled weekly, the forecast is mechanical:

• Opening balance: reconciled bank balance as of Monday. Not the online banking number; the book balance after outstanding checks.
• Cash in: open invoices by expected payment date, not due date. Use the customer's actual payment history (the customer who pays at 47 days is forecast at 47 days). Add recurring revenue that isn't invoiced yet, and nothing else. No hoped-for sales.
• Cash out, fixed: payroll on its dates with taxes, rent, loan payments, insurance, subscriptions, the owner's draw. These come straight from the recurring entries.
• Cash out, variable: open bills by due date, plus a run-rate line for the things that get charged to the card (based on the last eight weeks).
• Known one-offs: the estimated tax payment, the annual insurance premium, the equipment deposit. This is where the firm earns its fee, because the client forgot about two of these.
• Ending balance each week, with a minimum-balance line the client picked (usually one payroll). Any week that dips below it is highlighted. That highlight is the advisory conversation.

Run it Monday, review it with the client Tuesday for fifteen minutes, done. The first month you build it. Every month after, you roll it.

How to price it

The forecast sells as a tier on top of monthly close, not as an hourly project. Our range has held at roughly 1.5x to 2.5x the client's bookkeeping fee for the forecast plus the weekly call, with the top of the range for clients with real complexity (multiple entities, seasonal revenue, a line of credit to manage). A client paying $900 a month for the close pays $1,400 to $2,200 with the forecast. Clients don't push back on that number when the deliverable arrives every Monday and the call happens every Tuesday. They push back when it's "advisory" with nothing to show.

Where Woven stands

Disclosure: Woven is our product, and the forecast is one of the report packages it was built to produce. Because the books, the bank feed, the receivables, the payables, the payroll entries, and the loan schedules all live in one ledger, the 13-week forecast runs as a scheduled report off live numbers: reconciled opening balance, receivables aged by each customer's actual payment behavior, recurring outflows on their dates, and the minimum-balance flag. The firm's hour goes to the Tuesday call, not to the spreadsheet. Woven doesn't have the conversation for you. It makes the conversation possible for forty clients instead of four.

The short version

• Advisory that renews is a deliverable, not a relationship. The 13-week cash flow forecast is the first one to sell because it answers the question the owner already asks every Monday.
• It needs books current to last week and a reconciled bank balance. Where the close is monthly and the feed is weekly, it's mechanical.
• Build it from actual payment behavior and real due dates, flag every week below one payroll, and review it on a fifteen-minute standing call.
• Price it as a tier on the close, 1.5x to 2.5x the bookkeeping fee, and let the highlighted weeks do the selling.

If you want to see the forecast running as a report package on live books, [book a demo](/demo).