Your profit and loss statement should help you understand your business—not leave you more confused than when you started.

In his latest article, Hunt Demarest, CPA, breaks down the five most common P&L mistakes he sees in auto repair shops and explains how they can prevent owners from seeing what is really happening financially. This article was originally published on Ratchet+Wrench.com.

From inaccurate or overly detailed reports to improperly tracked sales and multiple businesses mixed into one set of books, Hunt shows how seemingly small reporting issues can distort margins, hide underperforming divisions, and lead to costly decisions. He also addresses an uncomfortable but important reality: shop owners can unintentionally undermine their own financial data through personal expenses, unrecorded work, or inconsistent processes.

The article offers practical guidance for creating a P&L that is accurate, organized, and genuinely useful—not just another report that gets filed away. Hunt’s straightforward approach helps shop owners understand which details matter, which ones create unnecessary noise, and how clearer financial reporting can reveal opportunities to improve profitability.

Is your P&L helping you run your shop—or making it harder to see the truth?

👉 Read more on Ratchet+Wrench and discover how a well-structured P&L can help you make smarter decisions, uncover hidden opportunities, and build a more profitable shop.