Forcing Amazon and other e-commerce companies to collect Arkansas sales taxes could generate up to $100 million annually in extra revenue, a senator said Wednesday, arguing his plan would put the state in a better position to enact deeper tax cuts in two years. The Senate Revenue and Taxation Committee on Wednesday advanced a proposal that would require out-of-state companies with no physical presence in the state to collect the tax if they sell more than $100,000 worth of products or make at least 200 transactions.