You have to document it in board meeting, and spell out the terms of the repayment. If you want to keep liability protection. From what I understand, if the opp

You have to document it in board meeting, and spell out the terms of the repayment. If you want to keep liability protection. From what I understand, if the opposing lawyer can successfully argue that you appear to be commingling funds and not operate as two seperate, distinct entities. How this is determined is not so much by a clear set of rules so much as a set of heuristics. They look at the formalities you've done, and other things such as how much you have loaned versus how much the corp was capitalized as (laibility-to-equity ratio) -- you'll want to ask your lawyer what is the best way to go about loaning money to your company, how often and how much you can do so.