Contractors lose money when they use generic accounting software. Standard tools like QuickBooks Online or Xero cannot track costs per job, generate AIA billing forms, manage retainage, or produce work-in-progress schedules without bolting on construction-specific add-ons. The result is spreadsheet workarounds that create errors, delay billing, and hide unprofitable jobs until it is too late to course correct.
We tested 10 accounting platforms across contractor-specific workflows: job costing accuracy (25%), billing flexibility including progress and AIA billing (25%), subcontractor and vendor management (20%), reporting depth (15%), and pricing (15%). Each was evaluated using a simulated general contractor managing 8 active jobs with 12 subcontractors.
Quick Comparison Table
| Platform | Price/mo | Best For | Job Costing | AIA Billing |
|---|---|---|---|---|
| Foundation | $200+ | Mid-size GCs | Advanced | Native |
| Sage 100 Contractor | $300+ | Enterprise contractors | Advanced | Native |
| QuickBooks + Knowify | $80 | Small contractors | Good | Via add-on |
| Buildertrend | $99 | Residential builders | Good | Limited |
| Jonas Premier | $200+ | Specialty contractors | Advanced | Native |
| FreshBooks | $17 | Solo contractors | Basic | No |
| CoConstruct | $99 | Custom home builders | Good | Limited |
1. Foundation Software - Best for Mid-Size General Contractors
Foundation Software
From $200/monthFoundation is the gold standard for construction accounting. Built from the ground up for contractors, it handles job costing with cost code granularity, AIA billing with automated G702/G703 generation, retainage tracking, certified payroll, equipment costing, and WIP reporting. For general contractors managing $2M-50M in annual revenue, Foundation pays for itself by catching unprofitable jobs weeks earlier than spreadsheet-based tracking.
Strengths: Deepest job costing in the market (cost codes, phases, categories), native AIA billing with automatic calculations, retainage management per contract, certified payroll for prevailing wage jobs, WIP schedule generation, change order tracking with margin impact.
Limitations: Desktop-based (cloud version is newer and still maturing). Implementation takes 2-4 weeks with training. Interface is functional but dated. Overkill for contractors under $1M revenue. Windows only.
Best for: General contractors doing $2M-50M annually, firms needing AIA billing and certified payroll, contractors managing 10+ active jobs with multiple subcontractors per job.
Request Foundation Demo2. Sage 100 Contractor - Best Enterprise Construction Accounting
Sage 100 Contractor
From $300/monthSage 100 Contractor (formerly Sage Master Builder) serves large contractors and multi-entity construction firms. It handles everything Foundation does plus multi-company consolidation, advanced equipment management, service management for maintenance contractors, and deep integration with Sage payroll and HR products. For ENR Top 400 firms or multi-division contractors, Sage provides the enterprise-grade financial controls that auditors and sureties require.
Strengths: Enterprise-grade construction accounting, multi-entity consolidation, advanced equipment depreciation and costing, service management module, deep Sage ecosystem integration, audit trail for surety requirements.
Limitations: Highest price point. Complex implementation (4-8 weeks minimum). Requires dedicated admin. Desktop-based with limited cloud features. The learning curve is steep for non-accounting staff.
Best for: Contractors doing $50M+ annually, multi-entity construction firms, heavy civil and infrastructure contractors with large equipment fleets.
Request Sage Demo3. QuickBooks + Knowify - Best for Small Contractors
QuickBooks Online + Knowify
$30 QBO + $50 Knowify = $80/monthFor contractors under $2M revenue who already use QuickBooks, adding Knowify ($50/month) transforms it into a construction accounting tool. Knowify adds job costing with budget tracking, change orders, AIA billing (G702/G703), retainage, subcontractor management, and progress invoicing - all synced to your QuickBooks general ledger. This pairing delivers 70% of Foundation's capabilities at 40% of the cost.
Strengths: Leverages existing QuickBooks investment, adds job costing and AIA billing without switching platforms, cloud-native, lower total cost than standalone construction software, familiar QuickBooks interface for bookkeepers and CPAs.
Limitations: Two systems to maintain (sync issues occasionally). Less depth than Foundation on cost code reporting. Certified payroll requires additional tools. Performance can lag with 20+ active jobs.
Best for: Contractors doing $500K-2M annually who already use QuickBooks, those who want construction features without replacing their accounting system, and contractors whose CPA prefers QuickBooks.
Try QuickBooks Online Free4. Buildertrend - Best for Residential Builders
Buildertrend
From $99/monthBuildertrend is a construction project management platform with solid financial features for residential builders and remodelers. It combines estimating, scheduling, client communication, selections management, and financial tracking in one platform. While not a full accounting system (it syncs with QuickBooks or Xero for GL), its construction-specific financial tools handle budgets, purchase orders, change orders, and owner invoicing.
Strengths: Best all-in-one for residential construction, client portal for selections and approvals, estimating to invoicing workflow, photo documentation tied to budgets, scheduling linked to financial milestones, strong mobile app for field use.
Limitations: Not a standalone accounting system (needs QuickBooks or Xero). Limited AIA billing support. Less suited for commercial contractors. Job costing is good but not as granular as Foundation.
Best for: Residential builders, remodelers, and custom home builders doing $1M-10M annually who want project management and financial tracking in one platform.
Try Buildertrend Free5. Jonas Premier - Best for Specialty Contractors
Jonas Premier
From $200/monthJonas Premier targets specialty contractors: HVAC, electrical, plumbing, mechanical, and fire protection firms that combine construction projects with ongoing service and maintenance contracts. It handles both sides - job costing for project work and service management for maintenance agreements - in a single platform. The service dispatch module manages technicians, equipment, and warranty tracking alongside construction accounting.
Strengths: Combined construction + service management, native AIA billing, dispatch and scheduling for service technicians, equipment and warranty tracking, WIP reporting, union payroll support.
Limitations: Primarily targets specialty trades (less suited for GCs). Implementation takes 3-6 weeks. Higher price for smaller firms. Interface is functional but not modern.
Best for: HVAC, electrical, plumbing, and mechanical contractors who do both project work and service/maintenance, firms needing dispatch alongside job costing.
Request Jonas Demo6. FreshBooks - Best for Solo Contractors
FreshBooks
From $17/month (Lite plan)FreshBooks is not construction software, but for solo contractors and handymen doing under $500K annually with simple billing needs, it handles invoicing, expense tracking, time tracking, and basic project profitability reporting at the lowest cost. If your accounting needs are "send invoices, track expenses, prepare for tax season," FreshBooks does this with the least setup and learning curve of any tool tested.
Strengths: Simplest setup of any tool (under 10 minutes), excellent invoicing with online payments, automatic expense categorization, time tracking linked to projects, client portal, mileage tracking for site visits.
Limitations: No job costing beyond basic project tracking. No AIA billing. No retainage management. No subcontractor 1099 tracking. Outgrown quickly as the business adds employees or subcontractors.
Best for: Solo contractors and handymen billing under $500K/year, those who need simple invoicing and expense tracking, contractors whose CPA handles the complex accounting.
Try FreshBooks Free for 30 Days7. CoConstruct - Best for Custom Home Builders
CoConstruct
From $99/monthCoConstruct combines project management with financial tracking specifically for custom home builders and remodelers. Its strongest feature is selections management - tracking every client choice (countertops, fixtures, finishes) with pricing that flows into budgets and change orders automatically. For builders where selection changes drive most budget overruns, CoConstruct prevents the margin erosion that kills custom home profitability.
Strengths: Best selections management for custom homes, budget tracking with real-time margin visibility, client communication portal, estimating with specification templates, change order management with automatic budget updates.
Limitations: Niche focus on custom residential (not suited for commercial). Needs QuickBooks or Xero for full accounting. Limited subcontractor management compared to Foundation. Smaller user community.
Best for: Custom home builders and high-end remodelers, builders where client selections drive budget complexity, firms doing 5-30 custom projects per year.
Try CoConstruct FreeOur Top Pick: Foundation for Growth, QuickBooks + Knowify for Budget
For contractors doing $2M+ in annual revenue who need real job costing, AIA billing, and WIP reporting, Foundation Software delivers the most complete construction accounting at a reasonable price. For contractors under $2M who already use QuickBooks, the QuickBooks + Knowify combination adds construction features for $50/month without switching platforms. Solo contractors should start with FreshBooks at $17/month and upgrade when complexity demands it.
Find the Right Accounting Tool for Your Business
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Browse All ComparisonsFrequently Asked Questions
Why can't contractors use regular accounting software?
Contractors need job costing, progress billing, retainage management, change order tracking, and AIA forms. Regular tools lack these without construction add-ons.
How much does contractor accounting software cost?
From $30/month for QuickBooks with add-ons to $400+/month for enterprise Sage. Most small to mid-size contractors spend $50-200/month.
Is QuickBooks good enough for contractors?
QuickBooks with Knowify handles basic contractor accounting for firms under $2M revenue. Above $2M, purpose-built tools like Foundation are significantly more capable.
What is job costing and why do contractors need it?
Job costing tracks every dollar against a specific project, revealing which jobs are profitable in real time rather than after project close.
Can accounting software handle AIA billing?
Foundation, Sage 100 Contractor, and Jonas Premier generate AIA G702/G703 forms natively. QuickBooks requires a third-party add-on like Knowify.