While the "Mad Money" host is skeptical about the plan passing Congress, he looked at how a corporate tax cut from 36 percent down to 15 percent could change the stock market layout.
"There are a lot of investors on the sidelines waiting for this market to come down to a more reasonable price," Cramer said. "What happens if so many companies are suddenly making more money because they have a lower tax rate? I bet it that would force billions and billions of dollars into the stock market in a virtuous circle of wealth creation."
Still, for the moment, Cramer still recommends staying the course. And while investors should keep tax cuts in mind as a potential blessing on their portfolios, don't count on them too heavily.
"Should you buy stocks in anticipation of this huge tax cut? The answer is point blank: no. The truth is we have no idea what will pass, and I seriously doubt this current plan can make it through Congress," the "Mad Money" host said.