KEY POINTS
  • If you had invested $10,000 in Tesla when it went public eight years ago, it would be worth close to $179,000 today.
  • That gain of $169,000, taxed at the top rate of 20 percent, would generate a tax bill of $33,800. Another 3.8 percent could be due, depending on your total income.

There's another reason Tesla's faithful investors might want to scrutinize CEO Elon Musk's public musings on taking the company private: Shareholders would likely face a tax bill.

Musk's surprise announcement last week — which is under review for possible violations of securities laws, according to various published reports — included his hope to let shareholders remain invested in a special fund if the company were to go private. He also said he would offer $420 per share.