Why Your P&L Is Lying to You (And How WIP Fixes It)

If you're a contractor looking at your Profit & Loss statement and thinking everything looks great — you might want to take a closer look. Because without proper Work in Progress (WIP) tracking, your P&L could be telling you a very different story than what's actually happening in your business.

The Problem: Revenue Timing

Here's the issue. Contractors often bill in chunks — a deposit upfront, progress payments along the way, and a final payment at completion. But the expenses for that job don't follow the same timeline. Materials get purchased early. Labor costs hit weekly. Subcontractors invoice on their own schedule.

Without WIP adjustments, your P&L might show a huge profit in one month (when a big payment comes in) and a loss the next (when expenses catch up). Neither picture is accurate.

What WIP Actually Does

WIP accounting matches your revenue to the actual work completed. It answers the question: "Based on how far along this job is, how much revenue should I be recognizing right now?"

This means your P&L reflects reality — not just cash flow timing. You can see which jobs are truly profitable, which are over budget, and where your margins actually stand.

Why Most Contractors Skip It

Honestly? Because it's complicated. WIP requires tracking percent complete on every active job, comparing estimated costs to actual costs, and making regular adjustments. Most general bookkeepers don't know how to do it for contractors.

That's exactly why we specialize in it. At 3 Peaks Books & Beyond, WIP tracking is built into everything we do for our contractor clients.

The Bottom Line

If you're making business decisions based on a P&L that doesn't include WIP adjustments, you're flying blind. You might think a job was profitable when it actually lost money. You might think you can afford to take on more work when cash is about to get tight.

Don't let your numbers lie to you. Get WIP tracking in place and start making decisions based on what's really happening.