MNsure still hasn't sent more than 21,000 tax forms to people who bought coverage through the state's health insurance exchange last year.
The forms were due Feb. 1, but MNsure officials said nearly two weeks ago that most were late because of delays with a new automated process for generating the documents.
On Feb. 17, the MNsure chief executive said the goal was to send all forms by Monday, but the job on Tuesday was only 54 percent done.
"The remainder will be sent out as quickly as possible," spokesman Shane Delaney said in a statement. "We're getting down to some very complicated cases, and that is causing our IT staff to perform additional review on many of these to make sure the information on the form is accurate."
People need the documents before filing their taxes, which are due April 18.
Minnesota launched the MNsure exchange in late 2013 to implement the federal Affordable Care Act, which makes tax credits available to individuals and families that buy private health insurance policies through a government-run exchange.
Based on income projections, MNsure shoppers access tax credits to discount premiums as they pay for coverage during the year. At tax time the following year, people need the MNsure forms to reconcile the subsidies they received with what they should have collected based on their actual income.
In addition, people who qualify for tax credits can defer the benefit until tax time — a circumstance where taxpayers this winter might be eager to get paperwork and file returns as quickly as possible.