Obamacare customers are being asked to wait to file their taxes this year because of yet another problem with the online system.

The Obama administration acknowledge Friday that about 800,000 users of healthcare.gov were sent incorrect tax information, the Associated Press reported.

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As a result, about 1 million people may have to wait to receive their income tax refunds, and another 50,000 Obamacare consumers who already turned in their returns may have to resubmit.

A blog post on Healthcare.gov said that "most people received a correct Form 1095-A" if they enrolled in Obamacare in 2014, but others did not. The form provides information to file for a tax credit.

"Some forms included the monthly premium amount of the second lowest cost Silver plan for 2015 instead of 2014, which needs to be corrected," the blog said. "The incorrect amount is listed in Part III, Column B of the Form 1095-A. We're working quickly to resolve this and any other issues with the 1095-A forms. This does not mean that your tax credit was incorrect; this is purely an error in what was printed on the form.”

The post said recipients will get corrected forms before the tax filing deadline of April 15.

“All corrected forms should be available by early March,” the post said. “If your form was incorrect, please wait to file your 2014 Federal income taxes.”

The White House announced earlier this week that 11.4 million people signed up for Obamacare in its second year.

This post has been updated.