[a_small_island]

This methodology isn't sound because of IRS treatment, I'm not an expert but I have these links bookmarked [0],[1]

From [0]: "I typically discourage companies from allowing option exercises by means of a promissory note. Promissory notes can provide employees a means of exercising options and starting their capital gains holding periods without coming up with cash. However, the promissory notes must be substantially full recourse to start the capital gains holding period, which creates a real obligation for the employee even if the stock eventually becomes worthless. A bankruptcy trustee might attempt to collect on a full recourse note in the event the company goes bankrupt. Full recourse means that the note is a general obligation of the employee, as opposed to recourse being limited to the stock purchased in the event of default."

[0]https://www.proformative.com/questions/exercise-stock-option... [1]http://www.jebachelder.com/articles/010321.html