The Internal Revenue Service (IRS) recently issued four letters emphasizing that the employer shared responsibility and individual mandate provisions of the Affordable Care Act (ACA) are still the law of the land and will be enforced.

In the two years since businesses had to start filing reports on the health insurance, or lack thereof, they provide their employees, the IRS has yet to fine anyone. But that may soon be over.

The IRS now has an automated system in place for ferreting out non-compliant businesses. The ACA Compliance Validation System (ACV) will not only identify potentially non-compliant Applicable Large Employers, it will also calculate the “A” penalty under the employer mandate.

The four recent letters, two for employer shared responsibility and two for the individual mandate, emphasize compliance and fines for non-compliance. Similar to the employer shared responsibility letters, the individual mandate letters state that the executive order directing the agencies to minimize the ACA’s burdens does not change the application of the individual mandate, and taxpayers remain required to follow the ACA.