How do I structure a side project to avoid employer IP?

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I want to launch a paid creative side project while keeping my full-time job, but my employment contract mentions inventions and intellectual property. What practical steps should I take—contract language, record-keeping, use of personal vs company tools, or advance disclosures—to keep the project legally separate and reduce risk to my career? Are there common safe practices or red flags to watch for when building something on the side?

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Jeremiah Stevens 15 Aug 2025

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Treat this like setting legal and practical boundaries, not hoping the employer will ignore it. Start by reading your assignment and invention clauses, then prepare a one page carve out that lists technologies, customers, and a start date for the side project and ask HR or your manager to sign it. If they refuse, get an IP lawyer to advise.
Always use personal devices, personal accounts, and a separate code repository tied to your personal email. Never use company time, code, data, or confidential knowledge. Keep dated records of idea origin, receipts for domain or hosting, commit logs, and a changelog. Consider an LLC and clear contributor agreements if you take money. Watch for vague assignment language and after-the-fact claims.
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H. E. 14 Aug 2025

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One thing that’s often overlooked is how you describe your side project when talking to others, including your employer. Be careful not to blur lines by using vague or overlapping language that could make them think the idea came from work. Also, avoid mixing any insider knowledge or skills unique to your job in the project’s development—even if it seems obvious to you, it might be tricky in legal terms. It might help to clearly define the project as a hobby or separate business venture on paper and keep all communications about it off company channels. That way, if questions come up, you have a clear story and evidence that this was something you did on your own time, with your own resources.
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J. B. 15 Aug 2025

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Don't accidentally compete. Pick a different customer set and problem. If your product targets a market your employer ignores, odds of a claim drop fast. When code must be clean, use a true clean-room build. Hire a contractor to implement from specs who never saw company materials. Archive notarized design docs and a defensive publication to fix priority. Get a lawyer to draft a narrow release you can show HR if things smell. Keep it boring and separate.
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Accepted Answer · 2025-08-15T00:38:00+00:00

I love the hustle. One wild idea is to form a tiny llc first and route all payments and trademarks through it so the project looks corporate from day one. Publish a few public commits or blog posts to fix dates in public view. Should I assume you want the employer to never know or are you aiming for friendly disclosure?