GOP Sen Marco Rubio takes aim at stock buybacks, an issue under attack by Democrats

The plan, unveiled Tuesday, would eliminate the preferential tax treatment of share repurchases as a way to discourage that behavior. Instead of falling under the capital gains rate, they would be taxed as dividends, which are subject to a wide range of rates.

Under the plan, any money spent by companies on buybacks would be considered, for tax purposes, a dividend paid to shareholders — even if investors did not actually sell their stock. Every shareholder would receive an imputed portion of the funds equivalent to the percentage of company stock they own.