If it seems as if the tax code was conceived by graphic artist M.C. Escher, wait until you meet the new and not improved Internal Revenue Service created by ObamaCare. What, you're not already on a first-name basis with your local IRS agent?

National Taxpayer Advocate Nina Olson, who operates inside the IRS, highlighted the agency's new mission in her annual report to Congress last week. Look out below. She notes that the IRS is already "greatly taxed"—pun intended?—"by the additional role it is playing in delivering social benefits and programs to the American public," like tax credits for first-time homebuyers or purchasing electric cars. Yet with ObamaCare, the agency is now responsible for "the most extensive social benefit program the IRS has been asked to implement in recent history." And without "sufficient funding" it won't be able to discharge these new duties.

That wouldn't be tragic, given that those new duties include audits to determine who has the insurance "as required by law" and collecting penalties from Americans who don't. Companies that don't sponsor health plans will also be punished. This crackdown will "involve nearly every division and function of the IRS," Ms. Olson reports.

Ms. Olson also exposed a damaging provision that she estimates will hit some 30 million sole proprietorships and subchapter S corporations, two million farms and one million charities and other tax-exempt organizations. Prior to ObamaCare, businesses only had to tell the IRS the value of services they purchase. But starting in 2013 they will also have to report the value of goods they buy from a single vendor that total more than $600 annually—including office supplies and the like.