Yes, S-corps may have voting and nonvoting stock. Differences in voting rights among shares of stock of a corporation are disregarded in determining if a corporation has more than one class of stock. Thus, if all shares of stock of an S corporation have identical rights to distribution and liquidation proceeds, the corporation may have voting and nonvoting common stock.
Additionally, a class of stock that may vote only on certain issues, irrevocable proxy agreements, or groups of shares that differ with respect to rights to elect members of the board of directors is not considers a different class of stock.
U.S. Code §1361(c)(4)
Treasury Regulation 1.1361-1(l)(1)
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