New tax reporting rules leave IRS to mop up Congress's mess - Jul. 9, 2010 NEW YORK (CNNMoney.com) -- With a new mandate looming that will require business owners to file millions more tax forms, the Internal Revenue Service has begun the daunting process of figuring out how to turn the law's sweeping demands into actual rules for taxpayers. The expanded reporting requirements, which Congress slipped into the landmark health care reform bill passed in March, are an attempt to create a paper trail of 1099s exposing business-to-business payments that might otherwise stay off the radar. But the cost of that paper trail could swamp the small companies, sole proprietors freelancers forced to generate it.