Cash flow for small teams: reading runway, retainers and margin
Finance · 8 min read
Profit on paper is not money in the bank. A plain guide to reading runway, tracking retainer burn and finding your real margin, with a 13 week forecast you can act on.
Plenty of profitable companies run out of money. It sounds like a contradiction until you remember that profit is an accounting opinion and cash is a fact. You can win the work, do the work, even invoice the work, and still be unable to make payroll because the money has not arrived yet. For a small team, understanding cash flow is not a luxury for the finance department. It is survival.
The good news is that the core ideas are simple. You need to read three things clearly. Your runway, your retainer burn, and your real margin. Here is what each means and how to keep an eye on it.
Runway: how long the lights stay on
Runway is the number of weeks or months you can keep operating before the bank balance hits zero, assuming things carry on roughly as they are. It is the single most important number for a small team, and the one most often answered with a shrug.
The reason it is hard to answer is timing. Money does not move in neat monthly chunks. A big invoice lands in week three, payroll goes out every two weeks, a supplier bill is due the day before a client pays. A monthly average hides exactly the gaps that hurt. This is why a weekly view matters. The nineloops 13 week cash flow forecast projects opening balance, money in, money out and closing balance for each of the next thirteen weeks, so you can see the tight week coming before you are standing in it.
Scenarios beat a single guess
A forecast that shows one line is a guess in a suit. Real planning needs a range. What happens if everything lands on time, what happens if your two biggest payers are each two weeks late, and what the realistic middle looks like.
nineloops lets you switch the same forecast between base, best and worst scenarios, and even model winning a specific deal to watch runway move before you sign. That turns cash flow from a report you read after the fact into a tool you use beforehand. Can we afford this hire, can we wait on that invoice, do we chase that overdue payment today.
Retainers: the burn you find too late
Recurring retainers feel like the safe, predictable part of the business, which is exactly why they quietly lose money. The fee is fixed but the hours are not, and a client who started using six hours a month creeps to fifteen without anyone repricing. By the time you notice, you have been subsidising them for a quarter.
The fix is to track hours used against hours allowed on every retainer, all the time, not at renewal. nineloops does this and flags the accounts you are over serving, so the conversation about scope happens while it can still change something.
Margin: the number that tells the truth
Revenue tells you how busy you are. Margin tells you whether being busy is worth it. A client can be your biggest by revenue and your worst by margin once you count the cost of delivery, the write offs and the time that never got billed.
A finance view worth its name shows real margin by client, project or department, and lets every figure trace back to the invoices, time and costs behind it. That is how you stop guessing which work is actually profitable and start steering towards it.
Revenue is vanity, profit is sanity, but cash is reality. For a small team, the weekly cash picture is the one you cannot afford to look away from.
A simple weekly cash routine
- Check runway weekly, not monthly, so a tight week never surprises you.
- Read money in and money out week by week, not as a monthly average.
- Keep a worst case scenario open, and assume your biggest payers are late.
- Review retainer hours used against hours allowed before you over serve.
- Track margin by client, and act on the low margin work on purpose.
- Chase overdue payments on a fixed day, every week.
Keep the money next to the work
Most of this is hard only because the money lives in a separate accounting tool, cut off from the projects and clients that generate it. When finance shares a workspace with your CRM and your projects, the forecast updates from real invoices and bills, margin traces straight to the time logged on a project, and modelling a deal you are about to win takes one click, because the deal is right there. nineloops keeps cash flow, receivables, payables, retainers and profitability in the same place as the work, so the numbers are live, not last month's export.