Which statement is NOT true about forming a Limited Liability Company (LLC)?

The correct choice indicates that it's not true that multiple owners are required to form a Limited Liability Company (LLC). An essential characteristic of an LLC is that it can be established by a single individual as a sole owner, referred to as a "member." This is one of the appealing features of LLCs since they offer flexibility in ownership structure, accommodating both single and multiple owners.

When an LLC is formed, it provides limited liability protection to its members regardless of the number of members involved. This ensures that personal assets are generally protected from business liabilities, which is a significant advantage for both single-member and multi-member LLCs.

In contrast, the other statements are true. No advanced IRS filing is needed for an LLC unless it opts to be taxed as a corporation. Also, LLCs do not usually need to publicly disclose their finances, which keeps financial matters private. Lastly, the requirement for a minimum capital investment is not mandated by law for forming an LLC, so this aspect does not apply uniformly across different states or situations.