The US Congressional Budget Office says the final version of the Democrats' healthcare plan will cut the federal deficit by $138bn over 10 years.
The non-partisan body said the proposed legislation, which the House is expected to vote on at the weekend, would cost about $940bn over a decade.
President Barack Obama said the bill represented the most significant effort to reduce the deficit since the 1990s.
He has delayed a trip to Asia until June to help lobby wavering Democrats.
The reforms would deliver on Mr Obama's top domestic priority by providing insurance to some 30 million Americans who currently lack it.
They would increase insurance coverage through tax credits for the middle class and expanding of the Medicaid programme for the poor.
If approved, they would represent the biggest change in the US healthcare system since the creation in the 1960s of Medicare, the government-run scheme for Americans aged 65 or over.
US healthcare bill 'will reduce deficit by $138bn
The US Congressional Budget Office says the final version of the Democrats' healthcare plan will cut the federal deficit by $138bn over 10 years.
The non-partisan body said the proposed legislation, which the House is expected to vote on at the weekend, would cost about $940bn over a decade.
President Barack Obama said the bill represented the most significant effort to reduce the deficit since the 1990s.
He has delayed a trip to Asia until June to help lobby wavering Democrats.
The reforms would deliver on Mr Obama's top domestic priority by providing insurance to some 30 million Americans who currently lack it.
They would increase insurance coverage through tax credits for the middle class and expanding of the Medicaid programme for the poor.
If approved, they would represent the biggest change in the US healthcare system since the creation in the 1960s of Medicare, the government-run scheme for Americans aged 65 or over.
