Keep QuickBooks. Run Construction AP in Nexus.
Add job-cost coding, lien-waiver payment controls, retainage, purchase-order reconciliation, and approvals without replacing QuickBooks.
Nexus Build is the construction operations layer around QuickBooks. Import vendors, bills, and purchase orders; review job, phase, cost-code, and cost-type coding; enforce waiver and insurance requirements before payment; calculate retainage when invoices are approved; and push approved bills back to QuickBooks.
Why Nexus Build
Job Cost Coding
AI assigns every invoice to the correct job, phase, and cost code based on vendor history and project context.
Lien Waiver Tracking
Track conditional and unconditional waivers per vendor per job. Block payments until required waivers are received.
Retention Management
Automatic retention holdback calculation per contract. Track retainage per vendor per job with release workflows.
Nexus Build Features
Everything you need to automate your AP workflow
Job Cost Coding
AI-powered assignment of invoices to jobs, phases, and cost codes
Lien Waiver Tracking
Track conditional and unconditional waivers per vendor per job
Retention Management
Automatic holdback calculation with per-job retainage tracking and release workflows
Subcontractor Portal
Self-service portal for subs to check payment status, upload waivers, and view retention held
Three-Way Matching
Automated purchase order reconciliation — match invoices to POs and receiving reports with configurable tolerances
QuickBooks Workflow
Import vendors, bills, and purchase orders and push approved bills back to QuickBooks
Approval Workflows
Route invoices based on amount, job, and vendor with multi-level approvals
AI Invoice Capture
Extract invoice fields and line items from uploaded documents for operator review
Audit Trail
Immutable log of every action from capture to payment with full job context
The Results
Dimensional Job Costs
See budget, committed, actual, and projected cost by job, phase, cost code, and cost type.
Payment Controls
Create explicit waiver requirements and record approved overrides before a payment can proceed.
Transactional Retainage
Calculate and post retainage with invoice approval, then track releases against the same source.
QuickBooks Continuity
Keep the accounting system your team already uses while adding construction-specific operations.
Get started from $599/mo
No credit card required. Free 14-day trial with full features.
Book a construction demoFrequently Asked Questions
Is Nexus Build only for construction companies?
Nexus Build is designed specifically for construction — general contractors, specialty trades, and developers. The job costing, lien waiver tracking, and retention management features are built for how construction AP actually works. For general AP automation, see Nexus AP.
Does Nexus Build work with QuickBooks Desktop and Online?
Yes. Nexus Build supports QuickBooks Online and a QuickBooks Desktop connector. Online imports are queued and Desktop syncs through the configured connector schedule.
How much does Nexus Build cost?
Nexus Build starts at $599/month for construction teams that need job cost coding, lien waiver tracking, retainage workflows, subcontractor portals, and QuickBooks-connected workflows. Larger teams with multiple entities, higher invoice volume, or custom ERP rollout needs should contact sales for implementation scope.
How does job cost coding work?
Nexus suggests coding from invoice and project context. An operator reviews the job, phase, cost code, and cost type before approval; approved invoices then post to the dimensional job-cost ledger.
Can subcontractors upload lien waivers themselves?
Yes. The subcontractor portal lets subs upload conditional and unconditional waivers, check payment status, and view retention held — reducing back-and-forth with your AP team.
How does construction accounts payable software differ from generic AP automation?
Generic accounts payable software handles invoice capture and approvals but lacks construction-specific features. Construction AP software like Nexus Build adds job cost coding, lien waiver tracking per vendor per job, retention holdback management, subcontractor portals, and purchase order reconciliation against job budgets — features that are essential for general contractors and specialty trades.
Ready to try Nexus Build?
See how Nexus automates your AP workflow end to end.