Most software development contracts are written by vendors, which means they are written to protect vendors. If you are the client, you need to know what to look for, what to push back on, and what to add. Here are the clauses that matter.
Intellectual property ownership
This is the most important clause in the contract. It should be explicit about who owns the code after the project is complete.
The contract should state that upon payment of the agreed fees, all intellectual property rights in the work product transfer to you as the client. This includes the source code, design assets, databases, documentation, and anything else created specifically for your project.
What to watch for: some contracts include exceptions for "developer tools" or "pre-existing code." These exceptions need to be clearly defined. If a developer uses a library they created before your project, they retain ownership of that library but should grant you a perpetual license to use it in the context of your project.
If a contract is silent on IP ownership or says that the developer retains ownership with you receiving a license, push back. You want full ownership of work you have paid to have created.
Source code access and delivery
The contract should specify when you receive access to the source code, in what format, and through what system.
You should have continuous access to the code repository throughout development, not just at the end. A developer working without giving you repository access can leave you with no leverage if disputes arise.
The contract should specify that the developer will provide all credentials (hosting accounts, service accounts, API keys) and documentation required to operate and maintain the system without the developer's involvement.
Specification and change management
The contract should reference the specification document that defines what will be built. Work that is not in the specification should go through a defined change order process.
The change order process should specify: how changes are requested, how they are estimated and priced, and that change orders must be approved in writing before additional work begins.
Without this, scope creep is unmanaged. Features get added without clear agreement on cost or schedule impact, and disputes arise about what was and was not included in the original contract.
Deliverable acceptance criteria
The contract should define what "done" means for each deliverable and how acceptance testing works.
A vague milestone like "user authentication feature complete" is not useful. The acceptance criteria should describe what the feature does in enough detail that you can objectively evaluate whether it meets the standard.
The contract should include an acceptance testing period: a defined number of days after delivery during which you can test the deliverable and identify defects. Defects identified during acceptance testing should be fixed at no additional charge.
What constitutes a defect versus a new feature request should be defined.
Defect warranty
After acceptance, a warranty period (typically 30 to 90 days) during which the developer fixes bugs at no additional cost.
The warranty should cover bugs that exist in the delivered work. It should not cover issues caused by changes you make after delivery, third-party service failures outside the developer's control, or new feature requests.
The distinction between a bug and a feature request is worth defining clearly in the contract, because this is a common source of disputes after launch.
Timeline and delay clauses
The contract should include a timeline with milestones. If you have a hard launch date or a date that triggers business consequences (a product demo, a contractual commitment to a client), make that explicit.
Ideally, include a clause about what happens if the developer misses milestones significantly. This is difficult to enforce in practice but it establishes shared expectations and creates a basis for renegotiation if the timeline slips badly.
Note that many development contracts include clauses limiting the developer's liability for delays caused by client-side decisions (delayed approvals, scope changes, late content delivery). These are often reasonable. Understand them before signing.
Confidentiality
The contract should include a mutual non-disclosure agreement. You are sharing business information with the developer. The developer may be sharing technical approaches they use across clients.
For most development projects, mutual confidentiality is straightforward and both parties benefit from it.
Subcontractor disclosure
Some development firms subcontract work to other developers or agencies without disclosing this to clients. If you care who builds your product (for quality, confidentiality, or IP reasons), the contract should require the developer to disclose any subcontractors and should give you the right to approve or reject subcontractor use.
This is particularly important if you are under NDAs with your own clients about proprietary information that will be included in the system being built.
Payment terms and schedule
Payment should be tied to milestones, not to calendar dates. A contract that requires payment every month regardless of delivery progress gives the developer no incentive to maintain pace.
Milestone-based payment means: you pay when working software that meets the acceptance criteria is delivered. The developer is motivated to deliver because payment follows delivery.
A reasonable payment structure for a fixed-price project: 20 to 30 percent upfront (to cover initial development costs), then payments at defined milestones, with the final 10 to 20 percent on acceptance.
Termination rights
Both parties should have termination rights with defined notice periods. The key clause for you as the client: if you terminate the contract, you receive all code and assets developed up to the point of termination and pay only for work completed.
A contract that does not allow termination or that requires payment for the full project value regardless of how much work was completed creates an unfavorable risk position.
Get in touch to discuss how we structure our development contracts, or to review a contract you have received from another vendor. Read our guide to evaluating development teams before you are in a position to be negotiating contract terms.