"As expected, the forms are very detailed and can present significant complexity, depending on a filer's coverage status during the year, income level, and household composition," Cobb said. "Depending on their situation, there are instances where filers may need to file multiple new tax forms and complete additional worksheets."
Cobb said people who are used to filing the pared down 1040-EZ will no longer be able to do so if they received any subsidies.
H&R Block CEO says Obamacare to add 'significant complexity' to tax season | WashingtonExaminer.com