QUICK ANSWER
The best invoicing software for construction companies in 2026 are Buildertrend, QuickBooks Online (with construction configuration), Knowify, and FreshBooks. Construction businesses need invoicing that handles progress billing (billing at project completion milestones), AIA billing formats (for commercial construction requiring G702/G703 documents), retainage tracking (money withheld until project completion), lien waiver management, and change order documentation. Buildertrend is the top choice for residential contractors and custom home builders, while QuickBooks Online handles the general accounting and invoicing for smaller commercial and trade contractors.
Key Takeaways
- Progress billing (milestone billing) is the standard invoicing method for construction projects — construction companies typically don’t invoice the full project cost upfront; instead they bill at project milestones (foundation complete, framing complete, etc.) or on a percentage-of-completion basis; invoicing software that supports milestone and schedule-of-values billing eliminates manual invoice creation for each project phase.
- Retainage creates a receivable that’s not collected until project completion — most construction contracts include a retainage clause (typically 5–10% of each invoice) where the owner withholds payment until project completion to ensure contractor performance; tracking retainage separately from regular receivables is essential for accurate cash flow management.
- AIA billing formats (G702/G703) are required for most commercial construction projects — the American Institute of Architects G702/G703 pay application forms are the standard billing format for commercial construction projects; contractors without software that generates these forms must create them manually, which is time-consuming and error-prone.
- Change order management directly impacts profitability — unauthorized change orders that aren’t properly documented and invoiced are one of the leading causes of construction company financial losses; invoicing software with integrated change order management ensures that scope changes are captured, approved, and billed before work begins.
Best Invoicing Software for Construction
1. Buildertrend — Best for Residential Contractors and Home Builders
Buildertrend is a construction management platform that combines project management, scheduling, client communication, budget management, and invoicing in a single system designed for residential contractors and custom home builders. The invoicing module handles progress billing, draws against a budget, change order billing, and retainage tracking natively. Buildertrend integrates with QuickBooks Online to sync financial data to your accounting system, providing a clean separation between construction project management (Buildertrend) and general business accounting (QBO).
Best for: Residential contractors, custom home builders, and remodelers managing multiple simultaneous projects who want project management and progress billing in a single construction-specific platform.
2. QuickBooks Online + Construction Configuration — Best for Trade Contractors
QuickBooks Online configured for construction (using jobs for project tracking, class tracking for division/phase tracking, and custom invoice templates for progress billing) handles most trade contractor invoicing needs without dedicated construction software. Electrical contractors, HVAC companies, plumbers, and specialty trade contractors typically do shorter-duration projects with simpler billing structures than general contractors — QBO handles these well. Progress billing using QBO’s progress invoicing feature allows you to invoice against an estimate in user-defined percentages.
Best for: Trade contractors (electricians, plumbers, HVAC, roofing) with shorter projects and simpler billing needs who want full accounting capability without dedicated construction management software.
3. Knowify — Best for Commercial Subcontractors
Knowify is designed specifically for commercial subcontractors and specialty trade contractors working on commercial projects. The platform generates AIA G702/G703 pay applications in the required format, handles subcontractor billing against general contractor contracts, manages lien waivers, and tracks certified payroll requirements for prevailing wage projects. Knowify integrates with QuickBooks Online for accounting and is significantly less expensive than enterprise construction ERP systems while providing the commercial billing formats that commercial subcontractors require.
Best for: Commercial subcontractors that bill GCs using AIA pay application formats, manage prevailing wage compliance, and need lien waiver management without the cost of enterprise construction software.
Construction Invoicing Software Comparison
| Platform | Starting Price | Progress Billing | AIA Billing | Best For |
|---|---|---|---|---|
| Buildertrend | $299/month | Yes | Limited | Residential contractors |
| QuickBooks Online | $30–$90/month | Yes (basic) | No | Trade contractors |
| Knowify | $99/month | Yes | Yes (G702/G703) | Commercial subcontractors |
Recommended Resources
Accounting All-in-One For Dummies — covers construction accounting fundamentals: percentage-of-completion accounting vs. completed contract method, how to track job costs, and construction GAAP requirements for contractors with long-term projects.
QuickBooks Online for Beginners 2026 — includes guidance on setting up QuickBooks Online for construction: configuring jobs/projects for cost tracking, creating progress invoices, and generating job profitability reports.
Frequently Asked Questions
What is retainage in construction invoicing?
Retainage (also called retention) is a percentage of each progress payment — typically 5–10% — that the project owner withholds until substantial completion of the project. Retainage provides the owner with assurance that the contractor will complete the project and correct any deficiencies. From the contractor’s perspective, retainage creates an accounts receivable balance that won’t be collected until project completion, which can significantly impact cash flow on long projects. Your invoicing and accounting software must track the retainage balance separately so you can invoice for it upon project completion and monitor your total receivables accurately throughout the project.