Surveys and statistical programs – Documentation: 72-212-X2023001Description: Data on income of census families, individuals and seniors are derived from the T1 Family File (T1FF). This file is based on information from the T1 form, Income Tax and Benefit Return, which Statistics Canada receives from Canada Revenue Agency (CRA) thirteen months after the end of the taxation year. Issue Number: 2023001Frequency: AnnualAuthor(s): Pagé, FrançoisMain Product:Technical Reference Guide for the Annual Income Estimates for Census Families, Individuals and Seniors, T1 Family File