As more requirements of the health care law take effect, income tax filing season becomes more complex for small businesses.

Companies required to offer health insurance have new forms to complete providing details of their coverage. Owners whose payrolls have hovered around the threshold where insurance is mandatory need to be sure their coverage — if they offered it last year — was sufficient to avoid penalties.

Even the most tax-savvy owners may find that do-it-yourself doesn’t work when it comes to fulfilling the law’s requirements. Many don’t know about the intricacies of the new health care regulations associated with the law that affect employers, says Lydia Glatz, an accountant with the firm MBAF in Fort Lauderdale, Florida.

“Most small businesses and mom-and-pop operations,” Glatz says. “They’re more involved in running their day-to-day business.”