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Software development agreement template

A software development agreement is a contract between a client and a developer or agency for building custom software. It defines scope, milestones, acceptance testing, payment schedule, ownership of the code and what happens on termination. Signee gives you a clause by clause outline with notes, fills it from your project details and sends it for signature.

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  • Scope, milestones and change requests
  • Acceptance testing with deemed acceptance
  • IP transfer on full payment
  • Not legal advice, review before signing

Software Development Agreement

Template, 12 clauses

Not legal advice
  1. 1.Parties and project. Who builds what for whom
  2. 2.Scope and specification. Features, platforms, exclusions, attached spec
  3. 3.Milestones and timeline. Phases, target dates, dependencies
  4. 4.Change requests. Written changes with price and time impact
  5. 5.Acceptance testing. Test period, defect list, deemed acceptance
  6. 6.Fees and payment schedule. Fixed price or time and materials, deposit, milestone payments
  7. 7.Intellectual property. Client owns custom code on full payment, developer keeps its tools
  8. 8.Open source and third party components. Disclosure and licence compliance
  9. 9.Warranty and defect fixing. Free fixes for a period after acceptance
  10. 10.Confidentiality. Protects business information and source code
  11. 11.Limitation of liability. No indirect loss, cap tied to fees
  12. 12.Termination and handover. Exit rights, payment for work done, delivery of code

Provider

Customer

Developer and client discussing a project agreement at a meeting table

When to use a software development agreement

Use it when someone is paid to build software that the client will own or rely on: a mobile app, an internal tool, an integration, a new version of a web platform. Freelancers, studios and agencies use it to get paid on time and to stop scope from growing for free. Clients use it to make sure they actually own the code they paid for.

If the work is advice rather than a product, a consulting agreement template fits better. If you provide ongoing work such as support, maintenance or design retainers, a services agreement template is simpler. And if the client will only use software you host and keep improving, the right paper is a saas agreement template, because the client gets access, not ownership.

Agencies with repeat clients often sign the legal terms once in a master agreement and describe each project in a statement of work. The clauses below work in either shape.

Clause by clause

What each clause does and what to negotiate

Short notes for each clause in the outline. They describe the common position, not the only acceptable one.

  1. 1Parties and project

    Names the developer and the client and describes the project in one or two sentences so the rest of the contract has context.

    Negotiate. Make sure the contracting entity is the one that will pay and own the result, not a founder in a personal capacity.

  2. 2Scope and specification

    Defines what will be built, usually by reference to a specification or statement of work, and lists what is out of scope.

    Negotiate. The exclusions list. Hosting, content entry, app store submission and ongoing maintenance are frequent sources of dispute.

  3. 3Milestones and timeline

    Breaks the project into milestones with target dates and makes clear that delays caused by the client move the dates.

    Negotiate. Whether dates are targets or firm deadlines, and what happens if the developer misses a firm one.

  4. 4Change requests

    Requires every change in scope to be agreed in writing with its effect on price and schedule before work starts.

    Negotiate. A simple approval route, such as email confirmation by a named person, so small changes do not stall the project.

  5. 5Acceptance testing

    Gives the client a fixed period to test each milestone against agreed criteria and report defects, after which the milestone is accepted.

    Negotiate. Length of the test window, what counts as a blocking defect, and whether use in production counts as acceptance.

  6. 6Fees and payment schedule

    Sets the pricing model and ties payments to milestones or monthly invoices.

    Negotiate. Deposit size, payment on acceptance versus on delivery, and a cap on hours under time and materials.

  7. 7Intellectual property

    Transfers ownership of code written specifically for the client, usually once paid in full, while the developer keeps its pre existing libraries and grants a licence to use them.

    Negotiate. Timing of the transfer and the scope of the licence to background code. Clients want it perpetual and transferable.

  8. 8Open source and third party components

    Requires the developer to list third party and open source components and to avoid licences that would force the client to publish its own code.

    Negotiate. A list of banned licences and a duty to deliver a software bill of materials at handover.

  9. 9Warranty and defect fixing

    Promises the software works according to the specification and that defects reported within a warranty period are fixed at no cost.

    Negotiate. Length of the warranty period, often 30 to 90 days, and response times for critical defects.

  10. 10Confidentiality

    Keeps the client business information and both sides technical information confidential.

    Negotiate. Whether the developer may show the project in its portfolio and on what terms.

  11. 11Limitation of liability

    Limits each party to direct losses up to an agreed cap, often the total project fee.

    Negotiate. Carve outs for confidentiality, IP infringement and data protection, which clients often want outside the cap.

  12. 12Termination and handover

    Lets either party end the project and requires payment for work completed and delivery of the source code, credentials and documentation produced so far.

    Negotiate. A clear handover list so the client can move to another developer without starting over.

Common mistakes

Why development projects end in disputes

Scope

What goes wrong
A one paragraph description and a promise to agree details later
Better approach
Attach the specification or user stories and list exclusions

Acceptance

What goes wrong
No test period, so the client can withhold the final payment indefinitely
Better approach
Fixed test window with deemed acceptance if no blocking defects are reported

Ownership

What goes wrong
Silence on IP, which in many countries leaves copyright with the developer
Better approach
Written assignment of custom code on full payment, licence to background tools

Changes

What goes wrong
Changes agreed in calls and chat messages
Better approach
Change request with price and date impact, approved in writing

Handover

What goes wrong
Code lives only in the developer account
Better approach
Repository, credentials and documentation delivered at each milestone and on exit

In Signee

Fill it in and send it for signature

  1. 1

    Start the draft

    Describe the project in one sentence for the AI generator, or start from the Master Services Agreement and Statement of Work in the library.

  2. 2

    Add the project details

    Fill in parties, fee, milestones, acceptance period and warranty. Missing fields are flagged before sending.

  3. 3

    Put the scope in writing

    Paste the specification or user stories into a schedule at the end of the agreement in the editor, so scope is part of the signed document.

  4. 4

    Sign and track milestones

    Send in signing order. After signing, key dates are extracted for reminders.

Save your finished version as your own template with variables, so the next project only needs new names, prices and dates. That is how agencies keep one approved set of terms across every client while the contract management software handles signing, storage and reminders.

This template is not legal advice. Signee is not a law firm. Ownership of code, worker classification and liability rules vary by country and state. For projects of significant value, or where the software is critical to the client business, ask a qualified lawyer to review the agreement before anyone signs.

Software development agreement questions

Who owns the code in a software development agreement
Whoever the contract says. Without a written assignment, copyright in code written by an independent developer often stays with the developer under US and many other laws. The usual compromise is that the client owns custom code once it has paid in full and gets a licence to the developer reusable tools.
Fixed price or time and materials
Fixed price suits a well defined scope and shifts the risk of overruns to the developer. Time and materials suits evolving products and shifts that risk to the client, so add a monthly cap or a budget alert.
What is deemed acceptance
A rule that a milestone counts as accepted if the client does not report blocking defects within the test period, or starts using the software in production. It prevents final payments from being held back indefinitely.
Do I need a separate NDA
Not if the agreement has a confidentiality clause covering both sides. A separate NDA is useful before the contract exists, while you are still discussing the project.
Can I sign a software development agreement electronically
Yes. Electronic signatures are valid for commercial contracts under ESIGN and UETA in the United States and under eIDAS in the European Union. Signee seals the signed PDF with an audit trail certificate.

Keep reading

Services agreement template A services agreement template with scope, fees, payment schedule, termination and liability terms. Fill it in, adjust clauses and send for e-signature. Read more Consulting agreement template A consulting agreement template with scope, hourly or fixed fees, expenses, confidentiality and IP terms, ready to customize and sign electronically. Read more SaaS agreement template A SaaS agreement template covering subscription, service levels, data, liability and renewal, with plain notes on each clause. Not legal advice. Read more

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