How to read a P&L in 5 minutes (without an accounting degree)
A plain-English walk through revenue, cost of sales, gross profit, overheads and net profit — and the three questions to ask every month.
Your profit and loss statement (P&L) tells the story of your business over a period — usually a month, quarter or year. It answers one question: did you make money, and how?
The five lines that matter
Revenue is what you invoiced. Cost of sales is what it took to deliver that revenue. The difference is gross profit — a fast read on how good your pricing and delivery model are. Then overheads come out to give you operating profit. Tax and interest give you net profit.
The three monthly questions
1) Is my gross profit percentage steady or drifting? 2) Which overhead line grew fastest this quarter? 3) Am I banking net profit, or is it locked up in unpaid invoices?
Where owners get stuck
Most owners look only at revenue and bank balance. Revenue ignores cost. Bank balance ignores tax you owe. The P&L, reviewed monthly, is the shortest path to clarity.
Official sources
Last checked against the sources above: 27 September 2026.
Want this applied to your business?
Book a free 15-minute call and we'll turn it into action.
Talk to us