Congress approved a sweeping $1.5 trillion tax bill on Wednesday that slashes rates for corporations, provides new breaks for private businesses and reorganizes the individual tax code.

The Senate passed the GOP bill early Wednesday morning and the House then voted on it for a second time to fix technical problems with the legislation, the final step before it’s sent to President Donald Trump for his signature. No Democrats in either the House or Senate backed the measure.

It is the president’s first major legislative accomplishment and the biggest tax overhaul in a generation.