How to resign from LLC?

There aren't any forms you have to submit when you leave an LLC. The steps you have to follow should be outlined in your LLC's operating agreement. If you didn't include anything in the operating agreement about members resigning, you will have to look to the default rules of Wisconsin. You may have problems if you are trying to give your interest in the LLC to someone else, but if you just want to resign, you are likely free to do so. However, if your resignation causes any financial harm to the LLC, you may be responsible for damages.