“We had our best quarter ever. So why is our cash balance flat?”
Executives at professional services firms come to us with this question more often than you’d think. Revenue is up, the team is busy, the pipeline looks healthy — and yet cash never quite catches up with how good things feel. The business is growing, but the bank account tells a different story.
It almost always comes down to two areas: utilization and cash collections. Both are fixable. Neither gets enough structured attention.
Utilization: Where the Plan Quietly Falls Apart
The PTO Problem
Most firms build a utilization target, multiply it by headcount, and call it an annual plan. The problem is that target is almost always calculated against the wrong number of hours.
A year has 2,080 working hours. Some companies apply their targeted utilization against that figure, e.g. “at 65% utilization, a team member will be billing 1,352 hours in the year.” But once you subtract vacation, holidays, and sick time, your team is realistically available for closer to 1,840 hours, or about 46 weeks. If your utilization target was set against 52 weeks and never adjusted, you’ve already baked a shortfall into the plan before the year starts.
Here’s what that looks like in practice. Consider a team member billing at $200 per hour with a $160,000 salary. With benefits and payroll taxes at approximately 15%, their fully-loaded annual cost is $184,000.
| Description | 80% Utilization | 65% Utilization |
|---|---|---|
| Total working hours (52 weeks) | 2,080 | 2,080 |
| Holiday hours | (80) | (80) |
| Vacation hours | (120) | (120) |
| Sick hours | (40) | (40) |
| Available hours after PTO | 1,840 | 1,840 |
| Utilization rate | 80% | 65% |
| Billable hours | 1,472 | 1,196 |
| Annual revenue generated | $294,400 | $239,200 |
| Fully-loaded employee cost | $184,000 | $184,000 |
| Gross profit | $110,400 | $55,200 |
| Gross margin | 37.5% | 23.1% |
| Effective cost per billable hour | $125 | $154 |
| Margin per billable hour | $75 | $46 |
The revenue difference between 80% and 65% utilization on a single team member is $55,200 per year. The gross profit difference is the same amount — your cost profile didn’t change. Multiply that across a team of five, and you’re looking at over a quarter million dollars in margin that disappeared without a single bad client or lost deal.
The culprit is usually a utilization target that was never recalibrated for actual available time.
The Pricing Problem
The second utilization leak is subtler and harder to see in the moment. Most firms price new engagements based on what a project should take, not what similar work has actually taken in the past.
If you’re not reviewing total delivery hours by project on at least a quarterly basis, you have no way to know whether your pricing is covering your real costs. You are almost certainly eating hours. Your team absorbs scope creep, inefficiencies, and underestimated tasks without formally flagging them as overages. Over time, this trains you to underprice the same category of work repeatedly.
The fix is straightforward: before pricing any significant engagement, pull the actuals from the three most comparable past projects. If the average delivery was 40 hours over scope, that needs to be reflected in the next proposal. Either increase the price or tighten the scope definition.
Cash Collections: The Other Half of the Story
Better utilization improves what you earn. Better collections practices determine when you actually see it.
Invoice Frequently
Invoicing monthly is the floor. Invoicing every two weeks is better. The sooner you invoice, the sooner the clock starts on your payment terms — and the sooner you surface any disputes or client-side delays while the work is still fresh and your leverage is highest.
Shorten Your Payment Terms
Net 30 is a holdover from a world where checks moved by mail. For professional services firms, Net 7 is the right standard. Think about it this way: you are paying your team on a payroll cycle. There is no reason your clients should be sitting on completed work for a month before payment is due.
Net 7 also changes the dynamic of the relationship from the start. It signals that you run a disciplined operation and expect the same from your clients. Most clients will accept it; those who push back on it are often telling you something important early.
Put Pencils Down Rights in Your Engagement Letter
Every engagement letter should explicitly grant you the right to pause work if an invoice goes more than 10 days past due without communication. This is not aggressive. It is a basic business practice that protects your firm’s cash position and creates a clear, professional mechanism for resolving slow payments before they become bad debt.
The key phrase is “without communication.” You are not necessarily stopping work the moment a payment is late. You are stopping work when a client has gone quiet. That distinction matters and keeps the conversation constructive.
Review A/R Weekly as Part of Your 13-Week Cash Flow Process
Accounts receivable should not be a monthly review item. It should be a standing agenda item in your weekly cash flow process.
A rolling 13-week cash flow forecast is the right operating tool for any professional services firm that wants to manage cash proactively rather than reactively. Built correctly, it maps expected inflows from outstanding invoices against projected outflows week by week, giving you a 90-day view of your cash position at all times.
The weekly AR review sits inside that process. You are asking a simple set of questions: What invoices are open? What is aging past due? Which engagement leads need to reach out to a client today? That conversation takes 20 minutes and catches slow-pay situations in week three instead of week nine.
The Bottom Line
Firms that feel like they’re winning and have the bank balance to prove it are usually doing a few unglamorous things consistently well: they build utilization targets off actual available hours, they price based on historical delivery data, they invoice frequently under tight payment terms, and they treat cash forecasting and AR as a weekly operating discipline.
If your revenue numbers are trending the right direction but cash keeps lagging, the gap is almost always hiding in one of these places.
About the Author:
Sean Scanlon is co-founder and Managing Partner at Karlon Group, a fractional finance and accounting firm that helps companies build, scale, and optimize their finance and accounting functions. Karlon Group works with companies across SaaS, consumer, manufacturing, and technology, offering a full suite of finance and accounting support tailored to each client’s changing needs.