In Part 1 of this entry, I discussed problems that some of my Silicon Valley clients have had with improper choice of entity – either because the tax consequences weren’t considered, or because restrictions in the California Corporations Code or Business and Professions Code were not taken into account. Here are two more expensive mistakes that business owners make when they try to form their own corporation or LLC online.

1. Not doing the required securities filings.

Online sites may not tell you that if you fail to file California and/or Federal securities filings you could be in violation of securities laws resulting in tremendous personal liability to return funds to your investors, despite the liability shield the entity is supposed to provide. Sometimes by the time I get involved it is too late to fix this, but sometimes we can do a late filing and get some, if not all, of the protection it provides. Corporations, as well as some LLCs and partnerships, are securities and must be treated accordingly.

I was in Los Gatos getting my hair cut this weekend and my hairdresser said something very interesting – he said that his best clients are the ones who try to do their hair themselves (especially their color) and then come to him to fix the mess they made. He said they are so grateful when he fixes the problem they created that they become clients for life. I am not the type of person to try to do my hair myself – too much risk for me. However, it struck a chord with me because it seems more and more I spend my time working with clients who have formed their own corporation or limited liability company through forms found on the internet, and then come to me to fix some problem they caused.

What is wrong with forming your own corporation or LLC online? Nothing, if you know what you are doing. However, most people who are starting a new business and need an entity do not specialize in forming companies. Here are two of the four most common (and costly) mistakes I have helped my Silicon Valley clients fix:

1. Picking the wrong type of entity — with disastrous tax consequences.