By Matthew Boos
Most owners don’t struggle to make money. They struggle to see what the money is doing.
They know how to win work, build it, and bill it, but the bank balance still catches them off guard. If cash keeps surprising you, it almost always ties back to how you’re running the business day to day. You fix it with simple habits that let you see cash before it moves.
Where unpredictable cash comes from
In practice, three issues show up over and over.
- Inefficient invoicing and miscommunication: Work gets done and hours go on the timesheet, but invoices lag and customers pay at their own pace. Most of the pain lives in that gap between delivering the work and getting paid.
- Inattention to working capital: Credit terms drift, invoicing isn’t treated as an operational deadline, and inventory or WIP piles up. The company can look busy and even profitable on paper, while cash is stuck in receivables and inventory.
- No forward view of cash: You look at yesterday’s bank balance and trust your gut about tomorrow. Without even a basic forecast, every payroll, tax payment, and big vendor check feels like it comes out of nowhere.
None of this is mysterious. You can measure it, you can predict it, and you can fix it.
Treat cash management like any other project
It helps to treat cash the same way you treat a job or project. You wouldn’t start a project without a schedule and a handle on what could slow you down. Cash deserves the same treatment.
You don’t need fancy software or complex models for this. It’s about treating cash flow like a schedule you keep current and watching for things that can interrupt it the way a superintendent watches for bad weather or missing materials. When you think of cash as a project, the idea of “hoping payroll clears” starts to feel as reckless as “hoping the job finishes on time with no plan.”
One long lens, one short lens
A rolling 13-week cash view is the core of it. In our experience, short-term forecasts in the 8 to 13-week range work best for owners in the $5 to $15M range. For a contractor, engineer, or professional firm, thirteen weeks is long enough to see if tax payments, debt, and payroll will collide, but short enough that you can still predict it with some confidence.
You don’t need new software. A simple spreadsheet works. Across the columns, list Week 1 through Week 13. Down the rows, list the main sources and uses of cash: collections from contract work, service work, and change orders on the inflow side; payroll, subs and materials, rent, debt payments, taxes, and owner draws on the outflow side. Start by filling it with the last quarter’s actual bank activity. That shows you how cash really behaves in your business, not how you wish it did. From there, you add what you know about the upcoming quarter: new jobs starting or finishing, planned equipment purchases, large tax bills, or one-off receipts and payments.
What keeps the forecast useful is the weekly cadence around it. Once a week, you roll the forecast forward. Drop the week you just completed, add a new Week 14, and adjust amounts based on what has changed. Then take a few minutes to compare last week’s forecast to what actually moved through the bank. Where did you overestimate or underestimate? Did a customer pay slower than you assumed? Did payroll come in higher because of overtime? That quick compare-and-adjust every week makes the forecast sharper without making it more complicated. Within a couple of months, you have a feel for when cash will be tight, when it will be loose, and which moves actually change the picture.
Alongside the 13-week view, use a short-term lens that fits your daily routine. The most practical version is a seven-day cash view that takes no more than ten minutes each morning. You start the day by looking at three numbers: the current bank balance, the cash that must go out over the next week (payroll, taxes, scheduled vendor and loan payments), and the cash you are confident will come in over that same period, based on specific invoices and payment promises rather than vague expectations. Laid out in a simple table for the next seven days, this immediately shows whether any day ahead drops below your required cash cushion. With less than an hour a month spent on this, most owners start seeing shortfalls early enough to do something about them instead of scrambling. In practice, that daily ten-minute check builds a habit that cuts down on surprise overdrafts and last-minute scrambles.
You can do all of this with tools you already have: a spreadsheet or basic forecasting feature in your accounting system, bank platforms that show real-time balances and send alerts, and standard AR/AP aging reports that round out the picture when someone actually looks at them and makes decisions from them.
Canary in the coal mine
To make this real, set up a few canary checks so the bird falls off its perch long before the bank balance does.
One useful test is to compare how long it takes to collect from customers against how long you take to pay vendors. If, on average, customers take sixty days to pay but you pay suppliers in thirty, then you are constantly funding that thirty-day gap out of your own pocket. In our experience, when the collection period significantly exceeds the payment period, even profitable firms end up feeling tight on cash. Tracking that gap every month gives you an early warning. If it widens, you can tighten terms, push faster invoicing, or stretch vendor terms before the strain shows up as an empty account.
Another canary is the missing invoice check. Once a week, operations produces a list of work completed or milestones reached. Finance compares that list to invoices actually sent. Any completed work that has not been invoiced within a day or two represents cash that the business has earned but has not even asked for. Getting invoices out quickly and cleanly is one of the easiest ways to improve cash flow. Making this a Friday habit puts billing on the same level as closing out timecards.
A third check sits in the accounts receivable aging. When the share of receivables older than sixty days grows from one month to the next, owners can safely assume that a cash squeeze is building for the next thirty to sixty days if they do not sharpen collection efforts. Looking at that percentage once a month, and acting when it drifts upward, turns a vague worry about slow pay into a straightforward cue to lean harder on collections.
Build the tools, change the future
The payoff isn’t just that you sleep better. When cash is predictable, growth stops being a blind leap and becomes a step you can actually measure. In our experience, firms that actively forecast and manage cash tend to operate with lower reliance on emergency borrowing, better margins, and more room to fund expansion from their own operations. The owner with a reliable 13-week view can negotiate confidently with vendors on terms and pricing, use a bank line as a tactical tool instead of a permanent crutch, and decide when to hire, take on a larger project, or open a new crew based on a clear picture of whether the business can carry the ramp-up period.
Here’s your direct challenge: Before this quarter is over, build your 13-week cash forecast and put a weekly meeting around it. Add the seven-day check to your morning routine. Put the three canary checks on your calendar once a month. Run that system for ninety days. If you do, cash flow will stop being a surprise. You’ll know, rather than hope, how cash is going to behave, and you’ll be in a much stronger position to say yes to growth that actually pays.
