Every trades owner knows the feeling. July, you're flush. Crews are booked out six weeks, the bank account looks healthy, and winter feels far away. Then February hits, revenue drops off a cliff, and you're staring at a bank balance that doesn't cover payroll.
You tell yourself it's the slow season. It's always been like this. Construction is seasonal, that's just the business.
Here's what that story leaves out: some of the cash that should have carried you through winter never actually left your customers' hands. It's sitting in your accounts receivable, unpaid, uncollected, and quietly evaporating your cushion before the slow months even start.
The Seasonal Squeeze Is Real, But It's Not the Whole Story
The concentration is more extreme than most owners think. Analysis of contractor financials shows the median contractor generates 47% of annual revenue in just three months. At the 75th percentile it's 66% in one quarter. For the top 10%, a single quarter accounts for 91% of the entire year's revenue.
That's not "busy season, slow season." That's a business funding twelve months of fixed overhead, insurance, equipment payments, admin salaries, off a three-month window. February and March are consistently the leanest months for most trades, the dead zone after the fall push and before spring work ramps up.
Fixed costs don't know it's the off-season. Payroll, insurance premiums, equipment loans, and rent keep hitting the account on schedule whether or not a truck rolled that week.
So yes, the seasonal math is brutal on its own. But it's not the full picture, because most owners are also owed money they haven't collected, and that gap is what turns a predictable slow season into a real crisis.
The Money You Think You Have Isn't All in the Bank
Here's the part that doesn't show up on the P&L. Across the construction industry, average time to collect payment after invoicing runs 60 to 90 days, more than double the roughly 35-day benchmark for businesses overall. In Ontario specifically, small businesses waited an average of 30 days just to be paid on invoices that had terms attached, on top of running close to 12 days late versus due date.
It gets worse when you look at how much actually gets collected at all. Analysis of contractor invoicing data found the median contractor has collected only 85% of what they've billed at any given point, with a meaningful share sitting in receivables 60, 90, even 120+ days out. The bottom quartile collects less than half.
Translate that into real numbers. If your shop billed $600,000 over your peak season and you're sitting at the median 85% collection rate, that's $90,000 still owed to you, cash that was supposed to be your winter cushion, still parked in somebody else's account. Add a slow season that was always going to squeeze you, and that uncollected $90K is the difference between a tight February and a payroll you can't make.
Most owners don't see this until it's already a crisis, because nobody is actively watching the aging report. The invoices go out, the job moves on to the next one, and by the time anyone circles back to "hey, did that get paid," it's 90 days old and half-forgotten.
Why "I'll Just Get Through It" Isn't a Plan
The instinct every fall is to grit your teeth and wait for spring. That belief, that the slow season is just weather you ride out, is exactly why the same crunch repeats every year. A predictable cash gap that you don't plan for isn't bad luck. It's a system that doesn't exist.
The other instinct is to think the fix is hiring: a bookkeeper, an office manager, someone to "handle the books." But a bookkeeper reconciling your accounts isn't the same as someone actively working your AR aging report every week, chasing the invoice that's gone quiet at day 35 before it becomes a day-90 write-off risk. Most in-house hires do the recording, not the collecting. And a full-time hire to do it right runs $50-70K a year loaded, a cost most 3-15 person shops can't justify for a problem that only bites hard for a few months.
The actual fix isn't more hustle in July or a new hire in the office. It's a standing process: invoices go out same-day, follow-up touches happen automatically at day 7, day 30, and day 60 before an invoice goes cold, and someone is looking at the aging report every week, not every quarter. That's the difference between summer revenue that's actually in your account by October, and summer revenue that's still a promise sitting in a customer's inbox when the slow season hits.
What This Actually Looks Like
For a shop doing $1.5-2M a year with a hard seasonal swing, the fix isn't complicated. It's:
-A collections cadence that doesn't depend on you remembering. Automated reminders at set intervals so nothing sits untouched for 60+ days without a human eye on it.
- A weekly AR aging check, not a quarterly one, so a slow-paying customer gets a call at day 35, not a write-off conversation at day 120.
- A reserve target built off your real numbers, not a guess, calculated from your actual slow-month burn rate so you know in October exactly what cushion you need by February.
- Faster invoicing at job completion. Every week between finishing a job and sending the invoice is a week added to your collection clock.
None of this requires a new full-time hire. It requires someone who actually owns the back office, watching the numbers every week, running the follow-up cadence, and flagging the gap before it's a crisis instead of after.
Find Out What's Actually Sitting in Your Receivables
I run a two-week Back Office Audit where I go through your invoicing, your AR aging, and your collections process and hand you a written plan, what's uncollected, what's overdue, and exactly what to fix before the next slow season hits. It's $2,500, and it's credited back to your first three months if we keep working together.
I'm not a software vendor pitching a tool. I ran the back-office and Shopify operations for a real company and was an EA to a CEO before that, so I know what it looks like when the admin side of a business actually runs, not just when it has an app installed.
If you've ever hit February wondering where all that summer cash went, that's exactly what the audit is built to answer. Book a Back Office Audit at biz-bot.net