Bookkeeping6 min read

Construction Job Costing: See Costs Before Closeout

Connect job costs, remaining work and billing before judging a project's margin. A practical guide to coding, WIP inputs, retainage and contractor records.

Construction job costing connects income and costs to the job that generated them. To judge an unfinished job, you also need a current estimate of remaining work. A profitable company-wide report can conceal a weak project, while a job report missing payroll or supplier bills can overstate its margin.

Daxable scopes construction bookkeeping around the contractor's records, reporting needs and review responsibilities. This guide separates posted costs, forecasts and cash so the owner can ask useful questions before closeout. It does not prescribe a tax or financial-reporting method.

What belongs in each job record?

Use a consistent job identifier across the estimate, supplier bills, subcontractor commitments, payroll inputs, customer invoices and approved change orders. Decide which cost categories are needed to compare the estimate with results. Extra codes add little if field staff cannot apply them consistently.

Keep overhead treatment explicit. A direct-cost job margin and a margin after allocated overhead answer different questions. Record the allocation basis, the period and who approved it; changing the basis without explanation can make two jobs look incomparable.

What can QuickBooks track?

Intuit's current documentation says Projects can track project income and costs in QuickBooks Online Plus, Advanced and Intuit Enterprise Suite. It distinguishes additional costing and phase features by product and add-on. Do not assume every subscription has the same job-costing reports.

A project record starts empty until transactions are assigned. Test the agreed workflow with a sample job: a supplier bill, customer invoice, time entry and correction. Check how the accounting file connects to Buildertrend, JobTread or another operating system before promising an integration or a reporting deadline.

How do actual costs differ from forecasts?

Actual costs record work already incurred under the agreed accounting policies. Remaining costs estimate the work still needed. Review outstanding purchase orders, subcontract balances, labour requirements and expected changes with the project manager so commitments are neither omitted nor counted twice.

Illustration only: a $100,000 contract originally has a $70,000 cost budget. At review, $30,000 of costs are recorded and the project manager expects another $45,000. The forecast total is $75,000, leaving $25,000 before any unallocated overhead. The original budget implied $30,000. The $5,000 change needs an explanation before the next bid uses the old margin.

This is a forecast illustration, not a revenue-recognition entry or a verified client result. Missing invoices, an outdated completion estimate or an unapproved change order can alter the picture. Keep the estimate date and its reviewer beside the forecast.

What should a WIP review explain?

A work-in-progress schedule connects contract values, actual costs, remaining-cost forecasts, recognized revenue and billings under the approved accounting method. Sage's WIP documentation describes project-manager and CFO forecast inputs alongside overbilling and underbilling. Software does not remove the need to review those inputs.

Billing ahead of recognized revenue is not automatically cash in the bank; the invoice may still be unpaid. Billing behind recognized revenue does not by itself prove that a contractor is unknowingly financing the work. Review billings, collections, remaining payments and contract terms separately.

Have the CPA or qualified accounting adviser determine the reporting and tax treatment. A management forecast, financial-statement revenue and taxable income are not interchangeable. The bookkeeping process should preserve the data needed for those decisions.

How should retainage stay visible?

Maintain a schedule showing retainage withheld by customers and retainage owed to subcontractors separately. Track the job, invoice, amount, release condition, expected date and supporting approval. Do not assume one standard percentage or release date across contracts.

A disputed release, incomplete closeout documentation and a payment that is simply not yet due need different follow-up. Keep those statuses visible. The accounting presentation and enforceable payment rights must follow the applicable policy, contract and qualified advice.

Which contractor records support year-end reporting?

Maintain vendor identities, invoices, payment dates, payment methods and appropriate tax documentation. Flag missing information early. Form W-9 is used to supply a taxpayer identification number for applicable US reporting; it is not a universal document for every possible payee.

Eligibility, payment-year thresholds and exceptions must be checked by the responsible filer. Daxable can organize contractor records, but this guide does not promise automatic or free 1099 preparation or filing. Insurance and lien-waiver requirements also need a separately agreed collection and review process.

What support does the business need?

If jobs lack reliable transaction coding, begin with bookkeeping and reconciliation. If reports exist but close reviews and policies are inconsistent, discuss controller oversight. If reliable records are available but the owner needs cash scenarios, bid assumptions or growth planning, discuss fractional CFO support.

Construction bookkeeping starts at $299 per month. WIP preparation, reporting complexity, historical cleanup and review ownership are scoped during discovery; they are not automatically bundled into the starting fee. Bring one current estimate, job report and billing schedule so the discussion starts with the work.

Sources

Frequently Asked Questions

Does a job profit report show the final margin?

Not for an unfinished job by itself. Compare recorded costs with a reviewed estimate of remaining work, and identify overhead or missing inputs excluded from the report.

Does every QuickBooks plan include Projects?

Intuit currently lists Projects for QuickBooks Online Plus, Advanced and Intuit Enterprise Suite. Detailed costing and other features depend on the product and add-on; confirm the actual subscription.

Does overbilling mean the cash has arrived?

No. Billing, revenue recognition and collection are different events. Check unpaid invoices and expected payments separately from the WIP schedule.

Does the starting bookkeeping fee include all WIP and 1099 work?

No automatic inclusion is promised. Daxable agrees reporting and review scope during discovery; contractor-record organization does not by itself include preparing or filing forms.

US Bookkeeping Course or Enrolled Agent?Free Rental Property Bookkeeping Spreads...

Want books you can actually trust?

Book a discovery call and our team will show you what it takes to get caught up and stay current.

Book a Call