Company B acquired Company A as it a mandatory stock exchange (Stock in A for Stock in B). Is this taxable? If not, how to report it in Turbo Tax?

[TomYoung]

Did you get a 1099-B as part of the deal?  If you did then you certainly have a sale to report.  If it was a tax-free exchange and no 1099-B was issued, then you have nothing to report.  Knowing the names of the companies involved would go a long way to getting a more specific answer.

Tom Young

[Zbucklyo]

Without knowing what Company A and B are, impossible to tell, because it depends on how the deal is structured for tax purposes.  This information can often be find online.