{"id":"concept:cost-of-goods-sold","kind":"concept","label":"Cost of Goods Sold","synonyms":["COGS","cost of sales"],"definition":"Cost of Goods Sold is the direct cost — materials, subcontracted labor, inventory bought for resale — behind what a business actually sold, reported above general operating expenses on a P&L.","summary":"The direct cost of what you sold, not overhead. A remodeling job's materials and subcontractor payments land here; the office's general software subscription doesn't. Subtracting COGS from revenue is what gross margin measures — how much a sale earns before overhead comes out.","explanation":["Cost of Goods Sold captures the direct cost tied to what was actually sold — materials that went into a job, labor paid to a subcontractor on that job, or inventory purchased specifically for resale. It's distinct from general operating expense, which covers the ordinary overhead of running the business regardless of any particular sale.","The reason this distinction exists at all is gross margin: revenue minus Cost of Goods Sold measures how much a sale earns before overhead — rent, software, insurance — gets subtracted. Lump COGS and operating expense together and that number stops meaning anything specific; keep them separate and a P&L can show both how profitable the actual work was and how much overhead it takes to run the business around that work.","Deciding what belongs in COGS versus operating expense is a genuine judgment call, and it varies by business. Materials bought specifically for one job clearly belong here; a subscription running the whole office clearly doesn't. A subcontractor paid to do work directly tied to a sale belongs in COGS; a bookkeeper paid a flat monthly retainer for general administrative work usually doesn't. Where the line falls for a specific cost is worth confirming with an accountant when it isn't obvious.","Categorizing something into Cost of Goods Sold, like any categorization, is still a human or AI judgment call layered on top of the arithmetic — double-entry bookkeeping guarantees the entry balances, not that the category chosen is the right one."],"commonMistakes":["Recording a subcontractor payment or materials purchase as general operating expense instead of Cost of Goods Sold, which distorts the gross margin calculation.","Recording ordinary office overhead — a general software subscription, admin support — as Cost of Goods Sold when it isn't tied to a specific sale.","Expecting the split between COGS and operating expense to be automatic — it's a categorization decision, not something double-entry bookkeeping determines on its own."],"category":"statements","questions":[{"question":"Is a subcontractor payment Cost of Goods Sold or an operating expense?","answer":"If the labor is tied directly to a specific sale or job, it usually belongs in Cost of Goods Sold. General administrative help unrelated to a specific job usually belongs in operating expense instead."},{"question":"Does BalanceMCP decide the COGS-versus-expense split automatically?","answer":"No — it's a categorization judgment call, same as choosing any other account. Double-entry bookkeeping guarantees the entry balances, not that the category chosen is correct."}],"url":"/glossary/cost-of-goods-sold","relatedTo":[{"id":"concept:gross-margin","relationship":"related","weight":0.9,"api":"/api/knowledge/concept%3Agross-margin"},{"id":"concept:operating-expense","relationship":"related","weight":0.9,"api":"/api/knowledge/concept%3Aoperating-expense"},{"id":"concept:profit-and-loss","relationship":"related","weight":0.9,"api":"/api/knowledge/concept%3Aprofit-and-loss"},{"id":"concept:vendor","relationship":"related","weight":0.9,"api":"/api/knowledge/concept%3Avendor"},{"id":"account:5000-cost-of-goods-sold","relationship":"references","weight":0.7,"api":"/api/knowledge/account%3A5000-cost-of-goods-sold"},{"id":"account:5100-subcontractors","relationship":"references","weight":0.7,"api":"/api/knowledge/account%3A5100-subcontractors"},{"id":"account:5200-materials","relationship":"references","weight":0.7,"api":"/api/knowledge/account%3A5200-materials"}],"referencedBy":[{"id":"concept:profit-and-loss","label":"Profit and Loss Statement","url":"/glossary/profit-and-loss"},{"id":"concept:gross-margin","label":"Gross Margin","url":"/glossary/gross-margin"},{"id":"concept:operating-expense","label":"Operating Expense","url":"/glossary/operating-expense"},{"id":"concept:expense-account","label":"Expense Account","url":"/glossary/expense-account"}],"license":"https://creativecommons.org/licenses/by/4.0/","attribution":"BalanceMCP — https://balancemcp.com"}