Cost Plus Construction Agreement Template for the United States

A Cost Plus Construction Agreement is a specialized contract that allows contractors to be reimbursed for actual project costs while earning a predetermined fee, providing flexibility when traditional fixed-price contracts aren't suitable for complex or uncertain construction projects.

When do you need this document?

You need this agreement when undertaking construction projects with significant uncertainty or complexity. This includes major renovations where existing conditions are unknown until work begins, custom construction projects requiring specialized materials or techniques, and fast-track projects where construction must start before final designs are complete. It's also essential for projects involving experimental construction methods, emergency repairs where immediate action is required, or when market volatility makes fixed pricing unrealistic. Government-funded projects often require cost-plus structures to ensure compliance with federal procurement regulations and transparency requirements.

Key legal considerations

The cost structure must clearly define reimbursable costs versus non-reimbursable expenses, with detailed categories for materials, labor, equipment, and overhead. Your agreement should establish audit rights allowing you to review contractor records and receipts, ensuring cost accuracy and preventing disputes. Payment procedures must specify invoicing requirements, supporting documentation standards, and approval processes for cost overruns. Include change order procedures for scope modifications and establish maximum cost limits or guaranteed maximum price provisions when possible. The contractor's fee structure should specify whether it's a fixed amount, percentage of costs, or sliding scale based on project value. Address insurance requirements, bonding obligations, and liability allocation between parties to protect your interests throughout the project.

Legal requirements in United States

Federal law requires compliance with the Davis-Bacon Act for projects using federal funding, mandating prevailing wage payments to workers. OSHA regulations must be strictly followed, with contractors responsible for maintaining safe working conditions and proper safety protocols. The Fair Labor Standards Act governs overtime payments and working hour documentation requirements. State licensing laws require contractors to hold appropriate licenses for the work type and project location. Lien law compliance is crucial, requiring proper notice procedures and payment protection for subcontractors and suppliers. Projects involving public accommodations must meet Americans with Disabilities Act accessibility standards. Federal procurement projects must follow Federal Acquisition Regulation procedures, while state and local projects require compliance with respective procurement codes and environmental regulations.