There's no assurance folks will be buying insurance under Obamacare, and that could spell trouble for the Affordable Care Act.

Nearly two-thirds of Americans who currently lack health insurance don't know yet if they will purchase that coverage by the Jan. 1 deadline set by the ACA, a new survey revealed Monday.



And less than half of those in the survey released by InsuranceQuotes.com think they'll get better health care after Obamacare takes full effect. Nearly 50 percent believe the ACA will make it more difficult for them to get tests and procedures done in a timely manner, according to the phone survey of 1,001 adult Americans conducted in early May.



And a whopping 68 percent of low-income Americans aren't sure they qualify for tax credits that would subsidize their purchase of health insurance—despite they fact that they almost invariably will qualify, the survey found. That population is most likely to benefit from government subsidies under the health-care reform law.

Laura Adams, senior insurance analyst at InsuranceQuotes.com, said public uncertainty about Obamacare—particularly a lack of commitment to signing up—could end up driving up health-insurance costs under the program because not enough healthy people will participate to offset benefits payouts.

