The present study has the objective of development and validation of a standard questionnaire applied to the Brazilian financial market which has the main objective to identify and classify clients. This instrument is part of the Now Your Client Policy that was implemented by Brazilian Financial and Capital Markets Association (ANBIMA), and could help institutions to advisory better their clients. The present article has the objective to develop and to verify the validity of a research instrument for the classification of investors according to their personal preferences and risk tolerance. In addition performing a suitability test allows the financial institutions to assess the investment objectives of the client, the client s financial ability to bear any related investment risks consistent with his investment objectives. The instrument was elaborated following the ANBIMA s regulations in addition to Financial Risk-Tolerance Scale developed by Grable and Joo in 2001. The lack of a standard model leads financial professionals to develop and use simplified methods, usually limited to simple conversations with clients about their level of well being in a variety of scenarios (GRABLE; LYTTON, 2001). Another contribution from this study is to show evidences that without a standard questionnaire is impossible to obtain accurate results among the different financial institutions.