An AIA Guaranteed Maximum Price Contract: What it is and Why You Need One

Are you familiar with an AIA Guaranteed Maximum Price (GMP) contract? If you`re working in the construction industry, it`s important to know about this type of contract. It offers both contractors and owners peace of mind, while also ensuring that a project is completed according to budget.

What is an AIA Guaranteed Maximum Price Contract?

An AIA Guaranteed Maximum Price (GMP) contract, also known as a “cost-plus” contract, is a construction agreement between an owner and contractor. It outlines a project`s scope of work, schedule, and budget. The contractor will complete the project and will be reimbursed for all the actual costs incurred. However, the owner`s payment is restricted to the maximum price agreed upon in the contract.

Why Choose an AIA Guaranteed Maximum Price Contract?

One of the most significant advantages of an AIA GMP contract is that it guarantees the project`s cost to the owner. This type of contract provides protection against unexpected increases in material costs, labor, and other expenses. When the contractor agrees to deliver a project for a fixed price, there`s a notable incentive to manage costs effectively.

This contract ensures that the project is completed within budget limits without compromising quality. Because the contractor`s profit is no longer tied to the total cost of the project, the contractor only receives a fixed fee that`s negotiated before starting the work.

An AIA GMP contract transfers the project`s financial risks from the owner to the contractor. The contractor assumes the responsibility to complete the project on time and within the agreed budget. If the final cost is under the maximum price agreed, the contractor keeps the remaining amount. If the final cost is higher than the maximum price, the contractor is responsible for covering the difference.

Key Considerations for an AIA Guaranteed Maximum Price Contract

An AIA GMP contract is an effective contract type for projects with a well-defined scope of work. The contract must define everything that the contractor needs to complete the project, including materials, labor, equipment, indirect costs, and profit. The contract must also include a detailed project schedule, payment terms, and a dispute resolution process.

Before agreeing to an AIA GMP contract, both the contractor and owner must understand the project`s risks and uncertainties. The contractor must provide adequate contingencies to cover unforeseen events. The owner must also provide accurate and complete project information to avoid misunderstandings.


An AIA Guaranteed Maximum Price contract provides certainty and financial security to both contractors and owners. The contractor agrees to complete a project within a pre-negotiated budget, while the owner is protected from any unexpected cost increases. This contract type is suitable for projects with well-defined scopes of work, and it`s essential that both parties understand the project`s risks and uncertainties before agreeing to it. As a professional, it`s important to note that this contract type is highly searched for within the construction industry. It`s important to provide readers with an authoritative and informative article when writing about the topic.