My wife immigrated to Canada from India. She had income in India before and after landing in Canada. For 2020 taxes I realize that she has to report all the income she earned post landing in Canada (employment, interest, etc.). However, I'm a bit confused about the tax credit portion of things. In India the fiscal year starts from April 1st and ends March 31. Hence she has filed taxes from April 2019 to Mar 2020. She is yet to file for April 2020 to March 2021. Assuming she does manage to file her India taxes before the April 30 deadline for Canada taxes, how do I calculate her tax credit for Canada 2020 returns? I was thinking of dividing the taxes paid on both her 2019-2020 and 2020-2021 India returns by 12 (so it is for a single month). Then multiplying the 2019-2020 number by 3 and the 2020-2021 number by 9. This way I get total tax paid in India for 2020. Does this seem reasonable? Also can I claim foreign tax credit for the full 2020 tax paid in India or does that also have to be pro-rated to the days she was in Canada.