New Hampshire Form C-1 is a form used by corporations in the state of New Hampshire to convert their corporate status from a corporation to a limited liability company (LLC). The form is used to document the conversion and is filed with the New Hampshire Secretary of State. There are two types of New Hampshire Form C-1: a Certificate of Conversion and a Certificate of Continuance. The Certificate of Conversion is used when the corporation is converting to an LLC without any changes to the corporate structure, while the Certificate of Continuance is used when changes to the corporate structure are being made. Both documents, along with the required filing fee and other documents, must be filed with the New Hampshire Secretary of State in order for the conversion to be completed.