US Republicans from both houses of Congress have revealed their joint bill for the biggest overhaul of the country’s tax system in 30 years. Republicans unveiled their final tax bill Friday evening, a step that will place them on track to vote on their plan next week and potentially have President Donald Trump sign it into law by the end of the year. The plan brings the US corporate tax rate down to 21% from the current 35%. The top individual income tax drops to 37% from 39.6%. t’s a campaign promise that Republicans are optimistic they’ll finally be able to deliver on, bolstered in part by several key senators saying they’ll back the bill Friday before the bill’s public release. “I’m confident we’ll have the votes,” said Sen. Rob Portman, a Republican from Ohio and a member of the tax conference.