NEW – This year, eligible individuals of Saskatchewan, Manitoba, Ontario and New Brunswick are able to claim Climate Action Incentive payments through their personal income tax and benefit returns. To do so, complete the new schedule. Any payment will first be used to reduce your balance owing, The deadline for most individuals to file their 2018 tax return and for all individuals to pay any amounts due is April 30, 2019. For those who are self-employed, or who have a spouse or common-law partner who is self-employed, the deadline to file your tax return is June 15, 2019.