Co-Founder Exits Without an IP Assignment Deed: What Happens to Your IP?

Author : AirCounsel Ltd | Published On : 06 Jul 2026

What Happens to Your IP if a Co-Founder Exits an Australian Proprietary Limited Company Without an IP Assignment Deed? Imagine building a groundbreaking tech startup or creative agency in Australia, only for your co-founder to walk away with the rights to your code, designs, or branding. This is a common and high-stakes risk for many proprietary limited (Pty Ltd) companies. Under Australian law, the default rule of ownership is simple: the human creator of the work owns the intellectual property (IP), not the company they founded. If a co-founder leaves without executing a formal ip assignment deed , your business is left in a legal minefield. In fact, research indicates that over 60% of Australian startups face IP ownership disputes within 5 years of founding , often stemming directly from co-founder exits lacking written assignments. To secure your company's future value, secure funding, or eventually sell the business, you must formally transfer these intangible assets. Here is everything you need to know about navigating co-founder exits and securing your company's IP. Table of Contents The Default Legal Position in Australia Key Risks of a Co-Founder Exiting Without a Deed IP Licensing vs. IP Assignment Essential Elements of an Australian IP Assignment Deed Step-by-Step Guide: Executing an IP Assignment Deed Common Mistakes and Real-World Lessons Secure Your IP with AirCounsel Frequently Asked Questions Recommended Quick Summary Takeaway Explanation Creator Ownership Absent a written deed, the co-founder who created the IP retains legal ownership under Australian copyright law. The Risk Exiting co-founders can block future investment, product launches, or acquisitions unless a clean transfer is executed. The Solution A formally executed, written ip assignment deed transferring all intellectual property rights to the Pty Ltd entity. Registration Needed Registered assets like trademarks, patents, and designs must also be updated with IP Australia. Timing Always execute assignments during company setup, or immediately during a structured co-founder exit. The Default Legal Position in Australia Under the Copyright Act 1968 (Cth), the default owner of copyright is the author or creator of the work. Even if they are a director or shareholder of a Pty Ltd company, unless they are an employee acting in the course of employment, they retain physical ownership. Co-founders are rarely classified as standard employees during the early stages of a startup, meaning they own the code, graphics, copy, and product blueprints they created. To legally transfer ownership from an individual to a company, Section 196 of the Copyright Act specifies that the assignment must be in writing and signed by or on behalf of the assignor (the person transferring the rights). Without a signed ip assignment deed, the company is merely using the IP with the co-founder’s temporary permission, which can be revoked at any time. Key Risks of a Co-Founder Exiting Without a Deed Inability to Enforce Rights : Without clear legal title, your Pty Ltd company cannot sue third parties for copyright infringement or prevent others from copying your technology. Blocked Future Investment : Venture capitalists and angel investors conduct rigorous IP due diligence. Unresolved IP ownership is one of the most common reasons deals fall through. Ransom Situations : An exiting founder can demand exorbitant payouts or equity in exchange for transferring the IP later once the company becomes successful. Blocked Acquisition : You cannot sell a company if you do not own the core technology or brand assets that drive its value. IP Licensing vs. IP Assignment Understanding the difference between licensing and assignment is critical for protecting company equity. IP Assignment : A permanent, complete transfer of all right, title, and interest from the creator to the company. The company becomes the sole owner of the asset. IP Licensing : A permission-based framework where the creator retains ownership but allows the company to use the intellectual property under specific, limited conditions. For Pty Ltd companies, an assignment is always preferred. Licensing leaves the asset on the founder’s personal balance sheet, which adds immense structural risk to the business entity. Essential Elements of an Australian IP Assignment Deed To be completely enforceable under Australian law, this document must be drafted as a "deed" rather than a simple contract. This legally bypasses the requirement of "consideration" (exchanging money), though nominal consideration is still common. Party Identification : Explicitly naming the assignor (the exiting founder) and the assignee (the Pty Ltd company). Clear Definition of Transferred IP : Detailing the software, source code, designs, algorithms, domain names, patents, and documents. Moral Rights Waiver : Under the Copyright Act 1968 , creators have moral rights (attribution, integrity). The deed must include a waiver or consent to stop the founder from claiming infringement if the company modifies their work. Further Assurances Clause : Obligates the exiting founder to sign future documents if needed to register patents or trademarks. Step-by-Step Guide: Executing an IP Assignment Deed To ensure you lock in ownership before a co-founder departs, follow this structured process: Step Action Item Target Timeline 1. IP Audit Identify all software, designs, and marks created by the exiting co-founder. Day 1–2 2. Document Drafting Draft the deed targeting those specific assets, including a moral rights waiver. Day 3 3. Negotiation & Signing Review terms with the exiting founder and sign in front of a witness. Day 4–5 4. IP Australia Registration File transfer forms with IP Australia for any registered trademarks or patents. Day 6–10 Note: For a robust co-founder exit, ensure you also review the overarching Custom Shareholders Agreement to verify exit provisions, and update company registers. Common Mistakes and Real-World Lessons Using Future-Tense Words : Phrase like "the parties agree to assign" only promises a future action. It must say "hereby assigns" for an immediate transfer. Not Addressing Moral Rights : Forgetting the moral rights consent allows the founder to legally object to future modifications. Failing to Register : Simply signing the deed is not enough for registered patents, trademarks, or designs; you must formally apply to IP Australia to update the official register. Secure Your IP with AirCounsel Don't wait until a dispute stalls your business growth. Securing your startup's intellectual property assets should be seamless, transparent, and affordable. At AirCounsel, we pair entrepreneurs with experienced Australian lawyers to ensure your proprietary information remains exactly where it belongs—inside your company. Whether you need to draft a custom deed using our Custom Contract Drafter , get immediate advice on a co-founder exit with our Ask a Australian Solicitor a Question service, or draft a Custom Shareholders Agreement to prevent future disputes, we provide rapid, fixed-fee solutions with no hidden costs. This article provides general information and is not legal advice. Frequently Asked Questions What happens to IP if a co-founder leaves without signing an ip assignment deed in Australia? If a co-founder leaves without executing an ip assignment deed, they legally retain ownership of all copyright and creative work they contributed to the company. The company may hold an implied, non-exclusive license to use the IP temporarily, but it cannot patent the technology, register trademarks, prevent the co-founder from using it elsewhere, or easily sell the business. Is a verbal agreement enough to transfer IP ownership from a co-founder to the company? No. Under Australian legislation, specifically the Copyright Act 1968 and the Patents Act 1990 , any assignment of intellectual property must be in writing and signed by the person transferring the rights (the assignor). Verbal transfers are legally invalid. Do I need to register an IP assignment deed with IP Australia for copyright to be validly transferred? Copyright is unregistered in Australia and is protected automatically upon creation, meaning the signed deed completes the copyright transfer. However, for registered IP rights like patents, designs, or trademarks, you must lodge a formal request to assign ownership with IP Australia to update the official register. Can a company enforce IP rights if the original creator never signed an assignment deed? Generally, no. Without a valid, signed assignment deed, the company does not hold legal title to the intellectual property. If a competitor copies your software or brand, your company will struggle to bring an infringement claim in court because it lacks the standing of a legal owner. Recommended Custom Independent Contractor / Consulting Agreement — Ensure any hired builders assign all code and designs to you from day one. Custom Employment Agreement — Secure robust IP provisions for your staff. Review of your Contract or Legal Document — Have an expert lawyer review existing founder agreements.

Originally published at https://aircounsel.com/australia/blog/co-founder-exit-ip-assignment-deed-australia