Description

Last Updated: May 27, 2026

Statistics Canada announces the update of the analytical files for the project Food insecurity and income using the Canadian Income Survey (CIS) and T1 Family files (T1FF).  In this project, a linkage between the Canadian Income Survey (CIS) and selected variables from the T1 Family File (T1FF) was performed. The objective is to identify the socioeconomic factors that contribute to food insecurity. The project is the result of a collaboration between the Centre for Housing and Income Statistics and the University of Toronto’s PROOF research program.

This release extends the existing linkages by including additional years of T1FF data and by incorporating the family‑level income variables FAFTNC and FAFTIC (please see the data dictionary for more information on variable descriptions).

The new linkage structure is as follows, with newly added linkages marked in bold: 

  • Phase 1: single year of data from the CIS and the T1FF
    • CIS 2018 linked to T1FF 2019
    • CIS 2019 linked to T1FF 2020
    • CIS 2020 linked to T1FF 2021
    • CIS 2021 linked to T1FF 2022
    • CIS 2022 linked to T1FF 2023
  • Phase 2: 6-year retrospective linkage 
    • CIS 2018 linked to T1FF 2013, 2014, 2015, 2016, 2017, 2018
    • CIS 2019 linked to T1FF 2014, 2015, 2016, 2017, 2018, 2019
    • CIS 2020 linked to T1FF 2015, 2016, 2017, 2018, 2019, 2020
    • CIS 2021 linked to T1FF 2016, 2017, 2018, 2019, 2020, 2021
    • CIS 2022 linked to T1FF 2017, 2018, 2019, 2020, 2021, 2022
    • CIS 2023 linked to T1FF 2018, 2019, 2020, 2021, 2022, 2023
  • The analytical files available include selected variables from the T1FF and an anonymized key to join individual records to the CIS. The following information is available from each respective source of data:
    • Canadian Income Survey provides information on the income and income sources of Canadians, along with their individual and household characteristics.
    • T1 Family File provides information on sources of income (from the tax filers) and some demographic indicators (present for both tax filers and non‑filers); variables are derived primarily from income tax returns.