Inform the Canada Revenue Agency (CRA) if there any changes in your family circumstances which could affect your GST/HST credit. Examples include a change in marital status or a change in the number of children in your care. The change will be reflected in your next quarterly GST/HST payment.
If you deposit your Canada Child Benefit into a separate bank account specifically for your child, any interest it earns is considered your child’s income rather than your own. Your child can earn up to $12,069 in the 2019 taxation year without being subject to federal tax.
If you are the single parent of a child under 18 and you live with your child and contribute to the maintenance of the dwelling in which you both live, you can claim an eligible dependant amount of $11,809 (which is the same as the spouse or common-law partner amount for couples). The amount is reduced by any income your child earns.
You may claim a non-refundable tax credit for expenses relating to the adoption of a child. For 2018, the maximum amount of expenses on which the credit is based is $15,905. You claim all your expenses in the year the adoption is finalized.
If you sold your home this year, make sure to designate it as your principal residence when you file your tax return. Failure to do so could result in the principal residence exemption being denied, which could result in the capital gain being taxable.