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How does start-up equity end up paying off?
Equity could mean stock options. If that's the case if the company makes it big, you'll have the option to buy stocks cheap (which can then be sold at a huge profit) How are you going to buy those without income?  5% equity is laughable. I'd be looking for 30-40% if not better without salary.  Or even better, a salary. To elaborate, 5% is fine, and even normal for an early employee taking a mild pay cut in exchange for a chance at return. That chance of any return on the equity is only about 1/20 (94% of startups fail) There is no reason for an employee to work for no pay. An argument could be made for a cofounder, with direct control and influence in the company to work for equity only, but it would be a /lot/ more (that 30-40%), or an advisory role (5% is reasonable)  I also just noticed you mentioned "investing" in the startup with cash. As an angel investor, I'd still expect far more than 5%, and preferred shares at that. More like 16-20%.  Read this for more info on how equity is usually split.