If the Health and Human Services department has trouble this time, that could delay tax refunds for many people.

Complicated connections between the new health care law and income taxes will start to surface in 2015.

HHS has to send millions of people who got health insurance tax credits this year a new tax form that’s like a W-2 for health care. It’s called a 1095-A.

If they’re delayed beyond Jan. 31, people who got coverage through the new insurance exchanges may have to wait to file their taxes — and collect their refunds.

Some tax preparation companies are worried.

The Obama administration says it’s on task, but won’t provide much detail.