The Obama administration is sending out the last batch of corrected tax forms for ObamaCare enrollees but affected people should still be sure to look over all the information.

The administration announced this year that it mailed incorrect tax forms to 820,000 customers of Healthcare.gov. The issue involves a new government form known as a 1095-A.

Feyman

Yevgeniy Feyman of the Manhattan Institute's Center for Medical Progress says the 1095-A form basically amounts to a W-2 for people who received taxpayer-subsidized health insurance.

He explains further: "It basically tells you how much you got in subsidies, how long you had the coverage, which months were paid for, how much you paid. Also, you can go and file that when you actually do your taxes." Tweet to @ManhattanInst

Going into last weekend, the Obama administration said that 740,000 corrected forms were mailed, with the remaining 80,000 forms expected to be mailed this week.

Still, the CEO of Healthcare.gov says some customers may have other errors on their forms. Enrollees are advised to look over the forms and make sure the information is correct before filing their taxes.

Feyman says this was always going to be a massive headache for people and anytime you introduce tax forms, he says, you are going to have trouble.

"But also this is an administration that botched the rollout of Healthcare.gov.," he points out. "So, personally, I wasn't expecting very much from them on this front."

Feyman says the IRS needs to offer the "right amount of leniency" this year, to people affected by the mess-up.

"I don't think it's going to be that much easier next year," he predicts.