By services, 18 January, 2022 20 February 1991 Internal T.I. 9035367 - Déduction de l'impôt payable en cas d'emploi à l'étranger - activités admissibles
By services, 18 January, 2022 23 January 1991 Internal T.I. 9033657 - Règlement 4601(c)(i)(E) transport local
By services, 18 January, 2022 24 September 2020 Internal T.I. 2020-0841041I7 - Normal reassessment period - provincial tax
By services, 28 December, 2021 9 July 2021 Internal T.I. 2021-0893981I7 - CERB received by non-residents
By services, 9 November, 2021 20 September 2021 Internal T.I. 2021-0883531I7 - CERS - Unexploited Rental Space
By services, 9 November, 2021 27 September 2021 Internal T.I. 2021-0877001I7 - CERS - Rent paid for unoccupied office space
By services, 19 October, 2021 19 October 2021 Internal T.I. 2021-0913751I7 - Eligible educator school supply tax credit