I'm 99% positive there are entire companies dedicated to financing the tax bill for these types of taxes, just to get a cut of the equity. EDIT: See https://ww

I'm 99% positive there are entire companies dedicated to financing the tax bill for these types of taxes, just to get a cut of the equity. EDIT: See https://www.esofund.com/ https://www.esofund.com/ There are other newer places also like https://join.equitybee.com/ https://join.equitybee.com/ Also, brokers who create a secondary market for this equity will also arrange financing, but it depends on the "hotness" of the equity. SIDE NOTE: If you have SpaceX stock, and you're going to leave it on the table due to taxes, reach out to me and I can arrange for something also. But go to ESOFund, etc first of course - those are professional outfits.