Don't know where else to reach out for info on my DD recently having the company she works for IPO and the tax implications of the vesting of 10,000 shares(amounts are rounded off for ease of discussion) 25% of the amount of shares earned. The information given her says that she needs to pay taxes on the value of these shares as ordinary income tax(46% federal and state in her case.) This doesn't seem reasonable and I can't figure out how this is possible that she has to come up with $46,0000 to pay these taxes. Is this the case with employees that have IPOs that make them millions of dollars? The information from the company isn't clear to me and even more opaque in my DD case. I would also guess that paying all these taxes doesn't affect the cost basis. Hoping that someone out there has some insight into this and can help explain this situation. Selling positions in her taxable account will result in more taxes(capital gains) and vesting of 6.25% of the remaining shares every three months with the same tax implications. Any ideas?