Most software contract disasters are not fraud — they are ambiguity. Scope nobody wrote down, IP nobody assigned, exits nobody defined. This guide covers the clauses that do the protecting, in plain language. (It is practical guidance, not legal advice — have counsel review your specific contract.)
The six clauses that matter most
1. IP assignment — on payment, not project end
Code, designs, and documentation should become your property as each invoice is paid. Avoid "IP transfers on final payment of all dues" — it turns any billing dispute into a hostage situation. Confirm the vendor's employees have signed IP assignment to the vendor, so the chain is clean.
2. Repository ownership from day one
The git repository lives in your GitHub/GitLab account; the vendor gets access. This one operational habit makes most IP and exit fears moot — you always hold the latest code, whatever happens commercially.
3. Scope and acceptance criteria in writing
A referenced scope document listing features with testable acceptance criteria ("admin can export leads as CSV") is what makes fixed price real. Vague scope is how both good-faith parties end up in bad-faith arguments — our requirements guide shows the format.
4. Milestone payments tied to acceptance
Structure: modest kickoff (15–25%), then milestone payments on demonstrated, accepted work. Never pay 50%+ upfront to a new vendor; never expect serious work to start on 0%.
5. Change control that is lightweight but written
You will change your mind — the contract should make that routine: a short written change request with price/timeline impact, agreed before work. Protects both sides from the "small tweak" death spiral.
6. Exit and handover
Either party can exit with notice (30 days is common); on exit you receive all code, credentials, documentation, and a defined handover period (our handover checklist lists exactly what). Pay for work accepted to date. No exit clause means you find out during a dispute.
Clauses to push back on
Vendor retains "reusable components" ownership defined vaguely; non-competes that block you hiring any developers; auto-renewing retainers with 90-day exit locks; and unlimited-liability asks on you while the vendor caps theirs at one month's fees.
Warranty and support
30–90 days of post-launch defect fixing included is standard. After that, a maintenance arrangement — separate, and worth having.
We work exactly this way — fixed scope, milestone payments, your repos, clean exits — because it removes the fear from hiring an agency. See how we engage or start a scoped conversation.
Frequently asked questions
What should a software development contract include?
Six essentials: IP assignment as invoices are paid (not at project end), repositories in your own account from day one, written scope with testable acceptance criteria, milestone payments tied to acceptance, lightweight written change control, and defined exit/handover terms.
Who owns the code in outsourced development?
You should — with IP assigned progressively as payments are made, and the repository living in your GitHub account with vendor access. Avoid contracts transferring IP only on final payment of all dues; that turns billing disputes into hostage situations.
How should payments be structured with a development agency?
A modest kickoff of 15–25%, then milestone payments released on demonstrated, accepted work against written criteria. Never pay more than half upfront to a new vendor; never expect serious work on zero.
What contract red flags should I push back on?
Vaguely defined vendor ownership of 'reusable components', broad non-competes on hiring developers, auto-renewing retainers with long exit locks, and asymmetric liability where yours is unlimited while theirs caps at a month's fees.