This Note reviews the requirements relating to an annual information form (AIF), which is required to be prepared and filed by a reporting issuer (other than a reporting issuer that is a venture issuer). It describes the information required to be included in an AIF and summarizes the process of preparing and filing an AIF with the securities regulatory authorities. This Note also reviews the impact and potential consequences if a reporting issuer required to file an AIF does not do so by the filing deadline or if a reporting issuer is required to amend its AIF. Although not required to do so, many venture issuers elect to prepare and file an AIF on a voluntary basis because it is required in order to access the short form prospectus system that is available to eligible reporting issuers.