Angel investments are typically structured in a few common ways: Equity Investment: The investor receives a percentage of ownership in the company. Convertible Notes: A loan that converts into equity at a later funding round, usually at a discount or with other favorable terms. SAFE (Simple Agreement for Future Equity): An increasingly popular structure, particularly in the tech world, that allows for a simpler investment without immediate valuation negotiations. Each structure has different implications for control, dilution, and risk, so startups should work with legal and financial advisors to choose the right setup.