In essence, the Court endorsed the practice of lawmakers encouraging or discouraging individuals to change behaviors through the tax system. Whether you believe that this is good health care policy or not, most would agree that it’s lousy tax policy. The propensity of our legislative branch to correct the social system through tax breaks and penalties has created a national tax law that is unfair, unnecessarily complicated, and economically inefficient.

The practice of using the tax code to advance social agendas and to change economic or societal behavior has skyrocketed over the last 25 years. Tax breaks for homeownership, retirement saving, having children, promoting energy conservation and more abound in the tax code. In fact, tax breaks rather than budgeted spending account for one-fourth to one-third of benefits and subsidies granted to the public, according to the Urban Institute’s C. Eugene Steuerle. “Taxes powerfully influence how we all consume, work, save, and invest,” he notes.

The result:  a tax code that is millions of words long, with even longer regulations, and one that is an indecipherable patchwork quilt of provisions, breaks, and penalties designed to reward or punish behaviors that our “social scientists” deem important.

Currently the IRS is responsible for $2.5 trillion a year or an estimated 92 percent of all federal government receipts. Each year, Congress enacts legislation that results in numerous changes to the tax code, each requiring new paperwork, updated computer systems, revised audit procedures, and lengthy explanations for tax preparers and the public. And each year, the IRS also fails to collect an estimated $450 billion in individual and corporate income taxes, as well as employment, excise, and estate and gift taxes due, in part, to lack of funding and staffing to keep up with tax code changes.

And now with the Supreme Court’s ruling, we are asking the IRS to add enforcement of an individual health insurance mandate to its portfolio. That means that, on top of its current responsibilities, the IRS will have to collect an assortment of fees that employers and companies would have to pay under the legislation, distribute federal subsidies to small businesses and low-income individuals, and enforce the insurance mandate. The Congressional Budget Office estimated that the IRS would need an additional $5 billion to $10 billion in funding over 10 years to implement the bill’s provisions.

The Obama Administration asked to increase the IRS’s annual budget to $12.8 billion, in part to fund the necessary changes needed to administer the new program, but Republicans opposed to the bill were successful in cutting the agency’s funds back to $11.8 billion in the budget approved earlier this year, with some Republicans even calling for the elimination of the agency altogether.

While the IRS is the federal agency that most Americans love to hate (conservative talk radio has already begun to blame it for the proposed expansion of power under health care reform), what is closer to reality is that the IRS has no interest in policing health care.

What is increasingly evident is the reach and magnitude of the power that Congress possesses in its taxing authority. It is our lawmakers and their apparently almost limitless ability to tax that have given us a tax code out of control – subject to the social whims of the day and relied upon to cure societal ills that include a lack of health care coverage, addiction to tobacco, and more.

There have been books written about the IRS and its “Power to Destroy.” But the IRS is merely the politicians' tool. Our lawmakers have the power to destroy, and their weapon of choice is their almost limitless ability to tax. In my world, Justice Roberts' decision exposes the scary dangers of the federal taxing power. It’s time for Congress to rethink the practice of “social engineering” through the tax code and come to respect and restrain the awesome power to tax.

Bergin is president and publisher of Tax Analysts and blogs for An expert on federal tax policy, he has written extensively on the subject and has worked in tax publishing for 30 years.