Investors and rental owners

@Tubott83 You would only claim the rent for the time you lived there during the tax year, so a max of 12 months. And you can only claim what you paid in total for the year, not the total that was paid by all the people sharing the unit. 

If you need to add the credit to your 2023 return, this TurboTax Canada FAQ tells you how you can do that using ReFile: I've filed my tax return. Can I still make changes?