From the November 2006 issue of Entrepreneur

For the LLC, it's been a relatively long road to popularity. When the limited liability company first appeared in the '70s, the tax and legal rules governing it were too confusing and onerous to make it an attractive option. In the '90s, after the IRS both clarified and simplified some of those rules, businesses began cautiously considering it.

Today, closely held companies are beginning to show a clear preference for the LLC, according to the latest data from the International Association of Commercial Administrators. LLC filings jumped in almost every state from 2004 to 2005, while corporate filings declined. "The tax benefits are becoming more clearly understood, the legal protection is there and people are getting more comfy [with the LLC]," says Dan Meehan, tax partner with New York City's J.H. Cohn. "And there are a lot of practitioners who didn't really understand LLCs and are now getting more familiar with [them]."

Add to that the fact that many sole proprietors, who for years were satisfied with a less formal status, are seeking protection in an increasingly litigious environment. "A decade ago, it was the norm to be a sole proprietor and view incorporating as unnecessary," says Troy Janisch of Madison, Wisconsin-based BizFilings, an internet company that provides incorporation services. But with greater exposure to lawsuits and more personal assets at stake as a result, many business owners are seeing the advantages to incorporating. And when faced with the choice of the LLC or its popular alternative, the S corporation, most opt for the former.

The LLC offers significant benefits for those seeking a little less liability and a little more flexibility. Like an S corp, the LLC is a pass-through entity for tax purposes, so income for the company is reported on the owners' personal income tax returns rather than on the company's returns. But owners of an LLC can distribute profits however they like, while S corp owners must distribute them equitably among shareholders, or at least according to percentages of ownership.

"If one shareholder wants to buy a house and take his share of the profits, the S corp can't just say, 'OK, we'll give you $200,000,'" explains Jeffrey Timen, tax director for Pricewaterhouse Coopers' Private Company Services practice in Cleveland. "If one gets a share of the profits, they all have to get it. With an LLC, you can do special allocations." There are also no restrictions on the number of owners an LLC can have, but S corps are limited to 100 shareholders. And finally, LLCs are far more relaxed, structurally speaking, and not subject to the ongoing rules and formalities of the S corp.

If, on the other hand, you plan to go public in the near future, or you are hoping to sell the business to a bigger company, an S corp might be a useful and beneficial alternative to the C corp, for which profits are taxed at both the individual and the corporate level. Further, as an owner of an S corp, you will not pay self-employment tax on the total income of the business, just on the salary paid to the employee-owner.

Before you consult experts to help with your decision about which entity is best, remember that you may get conflicting counsel depending on whom you ask. Attorneys will often recommend the LLC, while accountants tend to favor the S corp. "Accountants just know S corps better and don't know LLCs as well," says Larry Ribstein, a law professor at the University of Illinois. Attorneys, on the other hand, are much more familiar with LLCs, he adds.

To get the most beneficial advice, recruit an attorney and an accountant, and make sure both specialize in closely held businesses and both have experience with multiple business structures. "You need both the legal side and the tax side," says Timen, who adds that accountants can help with business structure but not with liability, and vice versa for attorneys. And, of course, do your own research-the more you know, the better you can evaluate the advice you receive.

C.J. Prince is a New YorkCity writer specializing in business and finance.