Start with accounting software configured for construction. QuickBooks works if you enable job costing and set up your chart of accounts properly. Every expense needs a job number attached so you can track costs by project, not just by month.

Code everything to jobs as transactions happen. Materials purchased for the Smith remodel get coded to that job. Labor hours worked on the Jones addition get allocated there. Subcontractor invoices tagged to the specific project. Equipment rental assigned to the job where it was used. This discipline is what makes job costing work.

Reconcile your bank accounts monthly. Match every transaction in your bank feed to what’s in your books. Catch errors while they’re fresh instead of trying to figure out six months later what that $847 charge was for. Monthly reconciliation also helps you spot duplicate payments, missed deposits, or fraudulent transactions quickly.

Track accounts receivable by job. Know what you’ve billed, what’s been paid, and what’s still outstanding including retainage. Follow up on invoices before they age past 60 days. Construction cash flow is tight enough without letting customers drag out payment.

Handle payroll correctly. If you have employees, process payroll on schedule with proper tax withholdings. Track certified payroll if you work prevailing wage jobs. Issue 1099s to subcontractors at year end with amounts you paid them throughout the year.

The reality is most contractors don’t have time to do this properly. You’re running jobs, managing crews, bidding new work. Bookkeeping gets pushed to weekends or ignored until tax time. By then you’re facing a cleanup project that costs more than monthly bookkeeping would have cost all along.

If you’re going to DIY, at least get your QuickBooks set up correctly from the start. Job costing, progress billing, and retainage tracking need proper configuration. Most contractors who set it up themselves end up with systems that don’t show project-level profitability because the initial setup was wrong.

Construction bookkeeping is different from regular business accounting. Job costing, progress billing, subcontractor management, and construction-specific tax deductions require knowledge that goes beyond basic bookkeeping. You can learn it, but the question is whether that’s the best use of your time when you could be running your business instead.