--- title: "Early Warning Signs a Job Is Losing Money Before It Ends" description: "Contractors can spot a losing job while it is still running. Track cost against contract, compare percent complete, and act while changes are possible." url: "https://mcc-solutionsnj.com/bookkeeping/guides/signs-a-job-is-losing-money-before-it-ends" --- Bookkeeping guide · Updated October 26, 2026 # Early Warning Signs a Job Is Losing Money Before It Ends Many jobs lose money quietly. By the time the final invoice goes out, the loss is fixed. Watching a few numbers during the job gives you time to change course. By [Matthew Coleman](/about), MCC Solutions Want this handled for you? Monthly bookkeeping, cleanup and year-end close for small businesses. Start with a free health check of your books. [Free health check](/bookkeeping/health-check)[Get a quote](/bookkeeping/#interest) **Related:** [NJ 1099 contractor rule (ABC test)](/bookkeeping/guides/nj-independent-contractor-rule-abc-test-2026) · [Trial balance explained](/bookkeeping/guides/trial-balance-explained) · [Owner contribution or loan](/bookkeeping/guides/owner-equity-and-capital-contributions) **Free tools:** [ROI and payback calculator](/bookkeeping/roi-and-payback-calculator) · [Net profit margin calculator](/bookkeeping/net-profit-margin-calculator) [![Intuit ProAdvisor Gold tier badge](/img/credentials/intuit-proadvisor-gold.png)](https://proadvisor.intuit.com/app/accountant/search?searchId=matthew-coleman77)Gold tier in Intuit's ProAdvisor program. [See my Intuit listing](https://proadvisor.intuit.com/app/accountant/search?searchId=matthew-coleman77) Keeping your own books? Tallyfinch does invoices, bank import and reports on your computer. [See Tallyfinch](/bookkeeping/mcc-books-downloadable-bookkeeping-software) ## Compare cost spent to percent complete If a job is half done and 70 percent of the budgeted cost is already spent, you are heading for a loss. The comparison is the simplest early warning there is. It works for a kitchen remodel, a landscaping contract or a design project. Update it weekly. A job that looks fine on day ten can turn on day twenty. ## Tag every cost to a job Materials, subcontractors, labor, equipment rental, permits and fuel should all carry a job tag when you record them. Costs without a tag fall into overhead, and the job looks better than it is. Do the tagging when the receipt arrives. Doing it at month end means guessing. ## Watch labor hours, not just dollars Labor is often where jobs slip. Compare hours worked to hours estimated at each stage. If the first phase took 40 percent more hours than planned, the later phases may follow the same pattern. Record the hours on the day, even for yourself. Owner time that is not counted makes the margin look better than it is. ## Track change orders in writing Work outside the original scope is a cost the contract does not cover unless you bill it. Record each change, get approval in writing and add it to the contract total. Unbilled changes are a common reason for a loss. If a client resists paying for a change, find out before the work, not after. ## A worked example A $20,000 job budgets $12,000 of cost for $8,000 of gross profit. At the halfway point you have spent $8,400 on materials, labor and a subcontractor. That is 70 percent of budget at 50 percent complete. If the pattern holds, the job will cost about $16,800 and the profit shrinks to $3,200. The $3,200 is an estimate, but it is enough to call the client about a change order, or to rework the second half. Waiting for the final invoice would have left only the loss. ## Keep the paperwork Keep the contract, change orders, invoices from suppliers and subcontractors, and time records for each job. If there is a dispute, a clean file for the job protects you. Ask an attorney about anything that could become one. These records also make the next quote better. After ten jobs, you know your real costs per hour and per material, not the ones you hoped for. ## What to do when the numbers turn Options include a change order, a conversation with the client, renegotiating a supplier price, rescheduling labor or stopping a phase until scope is agreed. Which is best depends on the contract, so read it and ask an attorney about anything serious. A sheet that holds each job's costs and invoices and flags when costs catch up with the contract makes the warning visible. The Contractor Job Costing Sheet on this site does this. Your CPA can advise how to treat unfinished jobs for tax. ## Common questions **What margin should a job earn?** It depends on the trade and your overhead. Work out your own break-even, then add the profit you need. **Should I track small jobs?** Yes, at least at a summary level. Small jobs add up. **How do I include overhead?** Many contractors add an overhead rate to labor or to total cost. Your CPA can help you choose a method. This guide is general information, not tax, legal or accounting advice. Rules, fees and due dates change; check with the IRS, the NJ Division of Taxation or a licensed professional for your situation. Let us handle it [### Monthly bookkeeping Categorizing, reconciling and monthly reports, with cleanup, payroll and NJ filings available. Bookkeeping →](/bookkeeping/) [### QuickBooks Online Monthly bookkeeping, cleanup and reconciliation in QuickBooks Online for New Jersey small businesses. Your account stays in your name. QuickBooks →](/bookkeeping/software/quickbooks-online) More guides - [HOA Treasurer Bookkeeping Basics for Volunteers](/bookkeeping/guides/hoa-treasurer-bookkeeping-basics) - [HOA Reserve Fund Explained: Operating vs Reserve](/bookkeeping/guides/hoa-reserve-fund-explained) - [Collecting Delinquent HOA Dues: A Treasurer's Process](/bookkeeping/guides/collecting-delinquent-hoa-dues) - [HOA Treasurer's Monthly Board Report Checklist](/bookkeeping/guides/hoa-board-treasurer-report-checklist) Free tool - [Bookkeeping health check](/bookkeeping/health-check) Related - [Contractor Job Costing Sheet](/toolkits/contractor-job-costing-sheet) - [Job costing for service businesses](/bookkeeping/guides/job-costing-for-service-businesses) - [Bookkeeping for contractors](/bookkeeping/guides/bookkeeping-for-contractors) [All guides](/bookkeeping/guides) Reach small business owners, freelancers and bookkeepers who read this guide: [advertise here](/advertise#bookkeeping). Tallyfinch ### Books you keep on your own computer Tallyfinch does invoices, bills, bank import, reconciliation and the main reports, in a file you own. $99 once, then $5 a month for updates; the app keeps working if you stop the plan. It does not do payroll or sales tax filing. The free download records up to 60 entries. [See Tallyfinch](/bookkeeping/mcc-books-downloadable-bookkeeping-software) [Download it free](/tools/pro/trial/mccBooks) [Compare the three apps](/software) ## Rather have us keep the books? Ask for a quote. [Get a Quote](/bookkeeping/#interest)[Call (908) 444-6373](tel:+19084446373)