Usually, a spin-off does not result in any gain or loss to a shareholder. A portion of the basis of the old stock is allocated to the new stock in the spin-off company. The IRS usually gives a ruling to the parent company to confirm this tax treatment. Best bet: Check with the company’s office of shareholder relations, which you can usually find on the company’s website, to find out about the specifics of the spin-off that you were involved in.
A rate for a period of less than a year computed as though for a full year.