Best 8 Construction Billing Software in 2026: Tools to Get Paid Faster

FOUNDATION is the best overall construction billing software for contractors who need AIA forms, progress billing, and job costing in one system. This list covers specialized options for subcontractors, small builders, AP teams, and anyone who wants estimate-to-invoice simplicity. Whether you’re a GC chasing retainage or a sub tired of paper lien waivers, there’s a tool here for the billing problem you’re trying to solve right now.

Quick comparison

1. FOUNDATION

Best for: general contractors who must produce AIA-compliant payment applications and manage job costs tightly.

FOUNDATION is a full construction accounting platform that ties together job costing, project management, and payroll, not just standalone billing. It supports progress billing, time-and-material invoicing, and retainage tracking, with desktop and web access for office and field teams. Contractors generate AIA-compliant pay apps directly, with retainage auto-calculated and tracked across draws. The system integrates with estimating workflows, so job costs flow into billing without re-keying. Standout feature: Native AIA G702/G703 billing forms that keep payment applications compliant without external templates or double entry.

2. Siteline

Best for: trade subcontractors frustrated by slow payment cycles and lien waiver paperwork.

Siteline centralizes payment applications, conditional and unconditional lien waivers, compliance documents, and collections in a single web-based hub. Built specifically for subcontractor workflows, not GC-side accounting, it cuts the administrative chasing that delays payments and drives up DSO. Subs can track payment status and overdue invoices without bouncing between email and spreadsheets. The platform also flags missing compliance docs before submitting a pay app, reducing back-and-forth with GCs. Standout feature: Automated lien waiver generation tied directly to each pay app, eliminating manual document assembly.

3. Houzz Pro

Best for: residential builders and remodelers who want branded invoicing and client-facing payment tools.

Houzz Pro lets you build payment schedules, accept deposits via credit card or ACH, and sync with QuickBooks or Xero. Mobile apps allow on-site invoicing, while a client portal lets homeowners view and approve change orders and pay immediately. Flexible billing options match project milestones, so you can collect draws as work progresses. Branded invoice templates and service agreements give a professional look without extra design work. Standout feature: Client portal that lets homeowners pay invoices instantly and review project financials in one dashboard.

4. Contractor Foreman

Best for: small to mid-size contractors who want billing tied directly to daily logs and change order approvals.

Contractor Foreman auto-generates invoices from approved estimates and change orders, cutting out data re-entry. The tool supports payment schedules, partial billing, and ties financial documentation into a wider construction management suite. Daily logs and labor/materials costs can link directly to invoices, so everything traces back to field data. Time cards and purchase orders feed costs into billing automatically. Suitable for teams that want all-in-one functionality without heavy accounting overhead. Standout feature: One-click invoice creation from approved change orders, so financial documents always match field approvals.

5. Projul

Best for: contractors who build estimates in Projul and want a frictionless path to invoicing.

Projul converts estimate line items directly into professional invoices, progress invoices, or retainers, preserving line-item detail and markup. You pick which line items to bill, apply progress percentages, and email the invoice from the app. Built-in template customization and online payment collection speed up cash flow, and mobile access lets you send invoices from the job site. The straight-through workflow means you never duplicate data from estimate to final payment. Standout feature: Instant estimate-to-invoice conversion that requires zero rekeying, reducing errors and saving admin time.

6. Buildertrend

Best for: home builders and remodelers who need invoicing integrated with project schedules, client communication, and selections.

Buildertrend generates invoices directly from estimates and tracks payment status with automatic reminders. The client-facing portal lets homeowners approve change orders, view invoices, and make online payments. Robust project management features surround billing: schedules, selections, and daily logs tie into the financial picture. Builders can manage selections and change orders, which automatically update what the client owes. Standout feature: A unified client experience that combines project updates, selections, and financials, reducing homeowner confusion about what they owe.

7. ConstructionOnline

Best for: construction firms that bill against line-item completion percentages and rely on QuickBooks for accounting.

ConstructionOnline lets you invoice custom percentages of total line items, not just flat amounts or rigid stages, giving precise control over progress billing. Direct QuickBooks integration keeps financial tracking accurate and reduces duplication. The tool handles traditional progress billing and change orders within project management workflows, and mobile apps give field access. You can withhold retention per line and release it later, maintaining compliance. Standout feature: Flexible line-item billing that lets you bill for exactly the percentage of work done, matching real job progress without forcing predefined phases.

8. AvidXchange

Best for: mid-size and large construction firms looking to automate accounts payable and supplier invoice processing.

AvidXchange captures invoices electronically, routes approvals through automated workflows, and schedules supplier payments. It integrates with construction ERPs like Sage and Viewpoint, eliminating manual data entry and reducing late-payment risks. Automated matching against purchase orders and receipts catches overbilling before payment. The system also collects lien waivers from subcontractors as part of the payment process. Note: it’s for the inflow of subcontractor and vendor invoices, not contractor-to-client billing. Standout feature: Invoice-to-pay automation that flags discrepancies and moves approvals without email chains or paper trails.

How we picked these tools

The selection came from hands-on demos, user review analysis, and conversations in contractor communities. We evaluated billing-specific criteria: support for AIA forms, progress billing, retainage tracking, lien waiver management, and accounting integrations. We also weighed user experience for field teams, mobile access, and clarity for non-accountants. We deliberately included a mix of full-scale construction ERPs, subcontractor-focused tools, and AP automation to cover different business problems. We looked for tools that reduce double entry, speed up payment cycles, and keep compliance paperwork in check. No tool paid for placement; this list reflects merit, not sponsorship.

Frequently asked questions

What is construction billing software?

Specialty tools built for construction’s unique invoicing needs: progress billing against a schedule of values, AIA document formats, retainage tracking, and lien waiver management.

Can’t I just use QuickBooks?

QuickBooks lacks native AIA G702/G703 and subcontractor pay-app workflows; dedicated software fills that gap or integrates tightly. Workarounds can add admin and compliance risk.

How does progress billing work?

You invoice against a schedule of values as work is completed, often requiring lien waivers and retainage calculations at each draw.

What are AIA billing forms?

Industry-standard payment application documents (G702 contractor’s application, G703 continuation sheet) that break down work completed, stored materials, and retainage.

Do these tools handle retention?

Yes, the best ones automatically track retention percentages and release them according to contract terms.

The verdict

FOUNDATION is the strongest overall construction billing software because it natively handles AIA forms, progress billing, job costing, and retainage in a single accounting package. Siteline is the runner-up for subcontractors who need to get paid faster. Its pay-app and lien waiver automation directly reduces payment delays. Houzz Pro is a solid second runner-up for residential builders wanting online payment collection and a polished client portal. The right tool depends on whether you’re a GC, sub, or builder, but FOUNDATION covers the most billing complexity out of the box.