What's the difference between job costing and general bookkeeping?
General bookkeeping tracks your overall business finances. Income, expenses, bank reconciliations, accounts receivable, accounts payable. At month end you get a profit and loss statement that shows total revenue, total costs, and whether the business made or lost money. This is the foundation of business bookkeeping and gives you the baseline for tax prep and understanding overall performance.
Job costing goes a level deeper. Instead of just tracking totals, it assigns every dollar of cost to a specific project. Labor hours, materials, subcontractor invoices, equipment rental. Each expense gets tagged to a job so you can see not just whether the business is profitable, but which jobs are profitable.
The difference matters most for project-based businesses. A contractor might have a great quarter overall but lose money on two out of five projects. Without job costing, you’d never know. You might keep bidding similar work at the same margins, not realizing those jobs consistently run over.
General bookkeeping is something every business needs regardless of type. Bank accounts get reconciled, transactions get categorized, financial statements get produced. It answers “How is my business doing?” Job costing answers “Which jobs made money and which didn’t?”
Job costing requires more discipline than general bookkeeping. Every material purchase needs a job code. Labor hours need to be tracked by project. Subcontractor invoices need to be allocated correctly. The extra effort pays off when you can see exactly which projects generate profit and which ones drain it.
For contractors and service businesses, the combination of both tells you everything you need to know. General bookkeeping for the overall picture. Job costing for the project-level detail that helps you bid better, catch overruns early, and focus on the work that actually makes you money.
Greater Boston's Trusted Bookkeeping Partner
The Next Step:
A Short Conversation
We'll ask a few questions, figure out what you need, and give you a straightforward quote.
More Questions
What's the best payroll software for contractors?
QuickBooks Payroll is the most practical choice for small to mid-sized contractors already using QuickBooks. The software matters less than whether it integrates with your job costing and how it's configured for construction workflows.
Read answerHow do cleaning companies track job profitability?
Track labor hours by job or client, assign supply costs, allocate vehicle and equipment overhead, then compare actual costs to your bid. Labor is your biggest variable, so time tracking is where profitability visibility starts.
Read answerHow do I track food costs for my restaurant?
Food cost tracking requires consistent purchase categorization, regular inventory counts, and a formula that compares what you spent to what you sold. Most restaurants struggle not with the math but with keeping the inputs accurate week after week.
Read answerHow can I improve my small business cash flow?
Cash flow problems usually stem from slow collections, timing mismatches between inflows and outflows, or money tied up in work that hasn't been billed. The fix depends on which one applies to your situation.
Read answerWhat's the difference between a CFO and a controller?
A controller looks backward to ensure your financial records are accurate. A CFO looks forward to guide strategic decisions about growth, financing, and capital allocation.
Read answerWhat records does a bookkeeper need from my business?
At minimum, your bookkeeper needs bank and credit card statements, sales invoices, and expense receipts. For contractors and service businesses, add job contracts, subcontractor invoices, and change orders. The more complete and organized your records, the more accurate your financials.
Read answer