"IRS revenue agents will not be involved. There will not be audits," IRS Deputy Commissioner Steven Miller told a subcommittee of the tax-writing Ways and Means Committee in the Republican-controlled House of Representatives.
The law, passed in 2010 and upheld by the Supreme Court, will charge individuals a fee, or tax, if they fail to buy insurance starting in 2014.
Opponents of the healthcare measure have focused on that requirement, with some Republicans saying they worry the IRS, the agency responsible for tax collection and tax law enforcement, will harass people who fail to buy insurance.
"In most cases, taxpayers will file their tax returns reporting their health insurance coverage, and-or making a payment, and there will be no need for further interactions with the IRS," Miller said.
Under the law, Americans who lack health insurance will have to pay an annual fee to the IRS of $95, or 1 percent of taxable household income, starting in 2014.
By 2016, that will rise to $695 per person, with a cap that equals the greater of $2,085 per family or 2.5 percent of household income.