Best Construction Accounting Software (2026): Job Costing Compared

QuickBooks Online is where most small contractors start, and with the right plan it covers basic job costing. On Plus, you turn on Projects to track income and costs for each job, and employee and subcontractor time can flow into project profitability, with payroll run through QuickBooks Payroll. Advanced adds project estimates and an estimates-versus-actuals report so you can watch the budget while the job runs.

The bigger advantage is people. Almost every construction bookkeeper and CPA knows QuickBooks, and most construction apps, from estimating to field time tracking, connect to it.

Which plan to pick: skip Simple Start and Essentials; they do not include Projects job costing. Plus at $115 a month is the starting point. Choose Advanced at $275 a month if you want estimates versus actuals or need more than five users.

Watch out for: progress billing. QuickBooks on its own is not built for AIA pay applications, retainage or WIP schedules. Once you bill that way, add a tool like Knowify.

Knowify fills the gap between QuickBooks and a full construction ERP. You estimate, write contracts and change orders, and bill in Knowify, including fixed-price jobs billed on percentage of completion, cost-plus and time-and-materials jobs, and AIA G702/G703 pay applications with retainage. Everything syncs both ways with QuickBooks Online, so your bookkeeper keeps working in QuickBooks.

On Advanced, Knowify adds project management and job costing: every clock-in, purchase order and vendor bill is assigned to the right project, phase and cost category, and a real-time WIP view shows whether each job is over- or under-billed. It also supports prevailing wage labor tracking for Davis-Bacon work.

Which plan to pick: Core if you mainly need proposals, contracts and progress or AIA billing. Advanced once you want real job costing and WIP.

Watch out for: you still need QuickBooks. Knowify is priced on top of your QuickBooks subscription, and syncing Projects needs QuickBooks Online Plus or Advanced.

Foundation is construction accounting software rather than general accounting with add-ons. Job costing, payroll, billing and reporting live in one system, so a change order entered once updates the over/under WIP schedule immediately, and job cost reports go from totals to detailed breakdowns in a click.

Its payroll is the main reason commercial contractors choose it. Foundation generates certified payroll formats such as DIR, eMars and LCPtracker, and handles union and multistate requirements. For a contractor doing public or union work, that removes a lot of spreadsheet work. We compare payroll options in our construction payroll guide.

Which plan to pick: Foundation quotes by configuration, so ask for a demo and an itemized quote that includes payroll and any mobile time tracking you need.

Watch out for: Foundation does not publish prices. Compare the quote with QuickBooks Plus plus Knowify Advanced before you switch.

Xero’s Established plan includes project tracking, which lets you track costs against each job, and it never charges per user, so a foreman, an office manager and an outside bookkeeper can all log in without the bill going up.

It is a good fit for a small contractor who wants basic job tracking without paying for QuickBooks Advanced to get more users.

Which plan to pick: Established at $90 a month is the only Xero plan with project tracking.

Watch out for: construction billing. As with QuickBooks, AIA pay apps and retainage need add-on software, so confirm your add-on supports Xero before you choose it. Also check the price after Xero’s October 1, 2026 increase.