Software Development Agreement Template (2026): Scope, IP & Payment

A founder hires a developer to build an app. The conversation is friendly, the quote is a single paragraph, and work starts on a handshake. Three months later, the client expects features nobody wrote down, the developer is waiting on unpaid invoices, and neither side can say who owns the code.

A software development agreement is the document that prevents that situation. This guide explains what it should cover and gives you a copy-ready template you can adapt for a custom software, web app, or mobile app project.

What Is a Software Development Agreement?

A software development agreement is a contract in which a developer or development company agrees to build software for a client. It sets out what will be built, how long it will take, how much it costs, how the client accepts the work, and who owns the result.

It is different from a software license agreement, which governs the right to use existing software. It also differs from a SaaS subscription agreement, which covers ongoing access to a hosted product. A development agreement covers the creation of something new.

When You Need One

Use a written development agreement whenever someone is paid to build software that does not exist yet. That includes:

• A freelancer building an MVP for a startup
• An agency delivering a website, web app, or mobile app
• An internal tool built by an outside contractor
• A new feature or integration added to an existing product

Even for a small project, the same questions apply: what is included, when is it done, how is it paid for, and who owns the code. If the project is long or the scope may change, pair the agreement with a statement of work for each phase.

Key Sections to Include

1. Scope and Deliverables

Describe what will be built in terms a non-technical reader can verify: features, platforms, integrations, and any documentation. Link to a specification, wireframes, or a backlog if you have one, and state what is out of scope. Vague language such as “a fully working app” invites disputes.

2. Milestones and Timeline

Break the project into milestones with target dates and the deliverable for each. Say whether dates are firm commitments or estimates, and what happens if the client is slow to provide feedback, content, or access.

3. Fees and Payment

Choose and state a pricing model:

• Fixed price: a set fee, often paid in milestone installments
• Time and materials: hourly or daily rates, ideally with an estimate or cap
• Retainer: a recurring fee for a block of capacity

Include invoice timing, payment terms, late-payment handling, and how expenses such as hosting or third-party licenses are treated.

4. Change Requests

Software scope shifts. Define how a change is requested, priced, and approved in writing before work begins. A simple process now avoids arguments later; see the agency change order form template for a model.

5. Acceptance Testing

Specify how the client reviews each deliverable: the review window, how defects are reported, and what counts as acceptance. A common approach is a fixed review period after which the deliverable is treated as accepted unless the client reports defects that fail the agreed specification.

6. Intellectual Property Ownership

This is the clause most often skipped, and the most expensive to get wrong. Cover:

• Who owns the custom code once the client has paid, and whether ownership is assigned or only licensed
• Pre-existing materials and tools the developer brings to the project, which the developer usually keeps while granting the client a license to use them within the product
• Open-source components, and any license obligations that come with them
• Portfolio rights, if the developer wants to show the work

In many jurisdictions, code written by an independent contractor is not automatically owned by the client, so an express written assignment matters. See the IP assignment guide for more background.

7. Confidentiality and Data

Protect source code, business plans, and any customer data the developer can access. If personal data is involved, add data protection terms; a data processing agreement may be required. You can also attach a separate NDA.

8. Warranties, Support, and Liability

State what the developer promises, such as delivering work that substantially conforms to the specification and does not knowingly infringe third-party rights. Define any bug-fix period after delivery and what ongoing maintenance costs. Add a limitation of liability that fits the project size, and have counsel review it.

9. Termination

Explain how either side can end the agreement, how work completed to date is paid for, and what the client receives (for example, the current code) on termination.

Software Development Agreement Template

Copy the text below and replace each bracketed field. Delete sections that do not apply and adapt the rest to your project and jurisdiction.

SOFTWARE DEVELOPMENT AGREEMENT

This Agreement is made on [date] between:

Client: [legal name, address]
Developer: [legal name, address]

1. SERVICES AND DELIVERABLES
The Developer will design, build, and deliver the software described in
Schedule A (the "Software"), including the deliverables listed there.
Anything not listed in Schedule A is outside the scope of this Agreement.

2. TIMELINE
The Developer will deliver the milestones in Schedule A by the dates shown.
Dates are [firm commitments / good-faith estimates]. If the Client delays
required feedback, content, or access, the affected dates move by a
corresponding period.

3. FEES AND PAYMENT
Pricing basis: [fixed fee / time and materials / retainer]
Fee or rates: [amount and currency]
Payment schedule: [e.g., 30% on signing, 40% on milestone 2, 30% on acceptance]
Invoices are due within [number] days of receipt. Late amounts accrue
[interest or fee, if agreed]. The Client will reimburse pre-approved
third-party costs such as hosting or licenses.

4. CHANGE REQUESTS
Either party may propose a change to the scope, timeline, or fees. No
change takes effect until both parties approve it in writing.

5. ACCEPTANCE
The Client will review each deliverable within [number] business days of
delivery and notify the Developer in writing of any failure to meet
Schedule A. The Developer will correct those failures within [number]
business days. A deliverable is accepted when the Client confirms
acceptance or the review period ends without a written notice of defects.

6. INTELLECTUAL PROPERTY
(a) Subject to payment in full, the Developer assigns to the Client all
rights in the custom code and materials created specifically for the
Client under this Agreement ("Client Deliverables").
(b) The Developer keeps all rights in its pre-existing tools, libraries,
and know-how ("Developer Materials") and grants the Client a
non-exclusive, perpetual license to use them as part of the Software.
(c) Open-source components remain subject to their own licenses, which
the Developer will list in Schedule B.
(d) [Portfolio rights: the Developer may / may not describe the project
publicly.]

7. CONFIDENTIALITY
Each party will keep the other's non-public information confidential,
use it only for this project, and return or delete it on request,
except where retention is required by law.

8. WARRANTIES AND SUPPORT
The Developer will perform the services in a professional manner and
warrants that the Software will substantially conform to Schedule A for
[number] days after acceptance. The Developer will correct reported
non-conformities during that period at no additional charge. Ongoing
maintenance is available under separate terms: [details or none].

9. LIMITATION OF LIABILITY
[Insert a limitation of liability appropriate to the project and
jurisdiction. Have a qualified attorney review this clause.]

10. TERMINATION
Either party may terminate on [number] days' written notice, or
immediately for an uncured material breach. On termination, the Client
pays for work completed through the termination date, and the Developer
delivers the then-current Client Deliverables, subject to payment.

11. GENERAL
This Agreement, with its schedules, is the entire agreement between the
parties. Changes must be in writing and signed by both parties. The
Developer is an independent contractor and not an employee of the Client.
This Agreement is governed by the laws of [jurisdiction].

SIGNATURES
Client: [name, title, signature, date]
Developer: [name, title, signature, date]

SCHEDULE A – SCOPE, MILESTONES, AND DELIVERABLES
[List features, platforms, milestones, dates, and acceptance criteria.]

SCHEDULE B – OPEN-SOURCE AND THIRD-PARTY COMPONENTS
[List components and their licenses, or "none".]

Common Mistakes to Avoid

• Describing the product instead of the deliverables. “Build an Uber for dog walkers” is an idea, not a scope. List the screens, features, and integrations.
• Staying silent on IP. Without a clear assignment or license, each side may assume it owns the code.
• Paying everything up front, or nothing until the end. Milestone payments tied to acceptance keep both sides motivated.
• No acceptance process. If “done” is undefined, the project can drag on indefinitely.
• Ignoring open-source licenses. Some licenses impose obligations on the software that uses them. Track what is included.
• Treating the contractor like an employee. Misclassification carries legal risk; see independent contractor vs. employee.

Frequently Asked Questions

Who owns the code if there is no written agreement?

It depends on the jurisdiction and the relationship, but in many places an independent developer keeps the copyright in code they write unless it is assigned in writing. Do not rely on assumption; put the assignment in the contract.

Should I use a fixed price or hourly rates?

Fixed prices work best when the scope is well defined. Hourly or time-and-materials pricing suits exploratory work where requirements will evolve. A hybrid, such as a fixed price per milestone, is common for longer projects.

Do I need a separate NDA?

Often the confidentiality clause is enough. If you need to share sensitive information before signing the main agreement, use a standalone NDA first.

Can we sign electronically?

In many jurisdictions, including the United States under the federal E-SIGN Act, a contract generally cannot be denied legal effect solely because it is signed electronically. Some document types and situations have exceptions, so check the rules that apply to you.

Put the Agreement in Writing Before the First Commit

A good development agreement is short enough to read and specific enough to rely on: clear scope, defined milestones, a workable acceptance process, and unambiguous IP ownership. Draft it from the template above, attach the specification as a schedule, and have both sides sign before work begins.

This sample is general information, not legal advice. Have a qualified attorney review the template for your project, industry, and jurisdiction before using it.