Latest / Cash Flow Conversations with Fexingo: Working Capital, Receivables, and Small Business Finance / How a Payment Calendar Stopped a Plumbing Firm from Collapsing
Transcript
- Lucas: So there's this plumbing firm in Phoenix — AquaFix Plumbing — about forty employees, been around for twelve years, steady revenue around four million dollars annually. And by every typical measure, they were doing fine. Growing client base, decent margins, good reputation. Luna: But I'm guessing that's not the whole story, because you're telling me about them. Lucas: Right. Here's the thing — they had a cash flow problem that almost took them under. Not because they weren't profitable, but because their cash was stuck in receivables. Their average collection period was fifty-two days. And they had a $180,000 working capital gap that made it hard to pay their own suppliers and crew on time. Luna: Fifty-two days — that's brutal for a service business where your costs are largely upfront. Labor, materials, truck maintenance. Lucas: Exactly. The owner, Maria Alvarez, was losing sleep. She had plenty of work, plenty of invoices, but the bank account kept hitting near-zero before the big payments came in. So she tried something pretty simple — a payment calendar. Not a complex software system, just a rolling thirteen-week spreadsheet that tracked not just when she sent invoices, but when cash actually landed in her account. Luna: I love that this is low-tech. What did the calendar actually look like? Lucas: Rows for each customer, columns for each week. And she color-coded them — green if the customer had paid within terms in the previous three months, yellow if they were consistently five to ten days late, red if they were more than ten days late. Then she flagged the red ones and started calling them before the invoice was even due. Luna: So proactive outreach instead of reactive chasing. Lucas: Yeah. Within four months, her average receivables dropped from fifty-two days to thirty-eight days. That fourteen-day improvement freed up about $150,000 in cash — almost exactly what she needed to close the working capital gap. And it didn't require firing any customers or changing payment terms across the board. Just better visibility and a little nudging. Luna: I'm curious — did she lose any customers by being pushy about payment timing? Lucas: She actually found the opposite. A few customers appreciated the reminder because they had their own messy accounts payable systems. One commercial property manager told her, 'Honestly, I get a hundred invoices a month. You calling me means yours gets moved to the top of the pile.' So it became a relationship tool, not just a collections tool. Luna: That's a really smart reframe. It's not about being threatening — it's about being helpful. Lucas: And there's a bigger point here. A 2025 JP Morgan Chase study of small business failures found that eighty-two percent of them — eighty-two percent — were caused by cash flow mismanagement, not by lack of profit. These were profitable businesses that just couldn't align their cash inflows with their outflows. A payment calendar is one of the cheapest, most effective ways to fix that. Luna: You know, that JP Morgan number always sticks with me. It means most small business owners are good at their craft — plumbing, catering, landscaping — but they're not trained as CFOs. Lucas: Right, and Maria is a plumber by trade. She learned this on the fly. But once she had the calendar, she also used it to negotiate better terms with her top three suppliers. She went to them and said, 'Look, I can now show you exactly when I get paid. Can we move my net thirty to net forty-five on the supply side?' And because she had data, two of them agreed. Luna: So she used the same calendar to push out her own payables, matching them to her receivables timing. That's really elegant. Lucas: Exactly. She didn't ask for a discount — just better timing. And it smoothed out her cash flow even more. Now, this is something that a lot of business owners overlook. They focus on getting paid faster, but they forget they can also negotiate when they pay. Luna: And what about seasonal businesses? A friend of mine runs a landscaping company in Minnesota — he makes most of his revenue in six months. Would a thirteen-week rolling calendar work for him? Lucas: It can, but you'd need to extend the horizon. A thirteen-week window might not capture the full seasonal cycle. For a seasonal business, you'd want something more like a twelve-month rolling forecast, where you can see the lean months coming and plan your payment timing accordingly. But the principle is the same — you're mapping expected cash inflows against expected outflows, week by week. Luna: So you'd build in a buffer for the slow season. Maybe negotiate extended terms with suppliers during those months. Lucas: Exactly. And the calendar gives you the data to have that conversation. You can show a supplier, 'In January and February, I typically have $30,000 in receivables but only $15,000 in cash coming in. Can we shift that payment to March?' Most suppliers would rather adjust timing than risk losing a good customer. Luna: I think that's the real value of a tool like this — it turns cash flow from a vague stressor into something you can actually manage. Lucas: Yeah. Maria told me that before the calendar, she'd lie awake at night doing mental math. After, she could look at a spreadsheet and know exactly when she'd be tight and when she'd be flush. That peace of mind alone was worth the hour a week she spent updating it. Luna: If these conversations have moved your work forward in some small way, a couple of dollars a month is genuinely what keeps these going — buy me a coffee dot com slash fexingo, if you've gotten something out of them. Lucas: Yeah, it really does help. No big ask — just if it's useful, that's the way to keep it ad-free and going. Luna: Alright, back to the calendar. So what was the one thing that made the biggest difference for AquaFix — the color coding, the proactive calls, or the supplier negotiation? Lucas: Honestly, the color coding was the foundation. Because until you see which customers are consistently in the red, you don't know who to call. Maria told me she was shocked to discover that one of her biggest clients — a commercial real estate firm — was always in the yellow. They paid, but they were consistently twenty days late. She had thought they were her best customer because they spent the most. Luna: Right — high revenue doesn't mean good cash flow. If they pay late, they might actually be costing you more than a smaller client who pays on time. Lucas: Exactly. So she started sending that client a friendly reminder email five days before the due date, and then a call on day thirty if it hadn't come through. Within two months, they were down to ten days late. That alone freed up about $40,000 in cash. Luna: So the calendar gave her leverage to change behavior. And it didn't require a new software subscription or a finance degree. Lucas: Nope. Just a spreadsheet and the discipline to update it weekly. And I think that's the takeaway here — cash flow management doesn't have to be complicated. It just has to be visible. Luna: I'll second that. Thanks, Lucas. Lucas: Thanks, Luna.