Relates to imposing a specific tax on all corporate stock buybacks of issued shares

S 1681 imposes a 0.5% tax on corporations buying back their own issued shares (stock buybacks). It directly affects corporations that repurchase shares, requiring them to pay tax equal to half a percent of the total value paid for those shares. The tax applies regardless of whether the shares are later canceled, and it replaces the existing per-share tax rates for such transactions. This is a direct tax on corporate buyback activity, not on general stock sales.