If your business is a limited liability company (LLC) or a limited liability partnership (LLP), you know that these structures offer liability protection and flexibility as well as tax advantages. But they once also had a significant tax disadvantage: The IRS used to treat all LLC and LLP owners as limited partners for purposes of the passive activity loss (PAL) rules, which can result in negative tax consequences. Fortunately, these days LLC and LLP owners can be treated as general partners, which means they can meet any one of seven “material participation” tests to avoid passive treatment.
You can only deduct losses from an S corporation, partnership or LLC if you “materially participate” in the business. If you don’t, your losses are generally “passive” and can only be used to offset income from other passive activities. Any excess passive loss is suspended and must be carried forward to future years.