A profit and loss statement is arithmetic, not a finance degree. In about twenty minutes and one Google Sheet, you can build a working P&L that tells you more about your business than your bank balance ever will. Here's the exact layout, the formulas, the eleven starter categories, and the wall every DIY spreadsheet eventually hits.

Most small business owners track expenses in broad buckets like "business stuff" or "miscellaneous." The problem is that broad categories hide the details that actually help you make decisions. This post gives you 35 specific business expense categories with descriptions, explains why granular tracking reveals spending patterns, and shows you how to set up categories that work for taxes, reporting, and real financial clarity.