WASHINGTON (Reuters) - The Senate's sweeping immigration bill would significantly increase the size of the country's labor force and lead to net savings of around $135 billion over 10 years, the non-partisan Congressional Budget Office said in a report released on Wednesday.

If the bill became law, the CBO said the policies would lead to a net increase of 9.6 million people living in the United States. The Senate passed the immigration bill at the end of June but the fate of the legislation is unclear in the Republican-controlled House of Representatives.

Both chambers must pass the same legislation before it can become law.

(Reporting by Rachelle Younglai and Kim Dixon; Editing by Eric Beech)