On February 16, 2018 the Government of Canada has decided to encourage all immigrants, including minors under 18 years of age, to acquire citizenship. To help make that easier, the government is lowering the processing fees for minors applicants applying under subsection 5(1) of the Citizenship Act, from $530 to $100, bringing them into line with the processing fees for minors applying under subsection 5(2) of the Act.
IRCC news states that “on June 19, 2017, the royal assent of Bill C-6 immediately brought into force a legislative amendment that removed the requirement to be 18 years old to apply for a grant of citizenship under subsection 5(1) of the Citizenship Act. This made it easier for minors to apply for citizenship on their own behalf. One of the strongest pillars for successful integration into Canadian life is acquiring Canadian citizenship.
This ensures that there is no difference in the fee paid by citizenship grant applicants who are minors, regardless of whether they have a Canadian parent, are applying with a permanent resident parent or are applying on their own behalf. Anyone who already paid the $530 fee for a minor applying under this subsection on or after June 19, 2017, will be reimbursed the difference of $430. IRCC will contact these applicants directly to outline the process for receiving a refund.
Minors who do not have a Canadian parent, or a permanent resident parent applying for citizenship at the same time as them, can apply for citizenship under subsection 5(1) of the Citizenship Act. Therefore, the reduction in citizenship fees will help more minors, including immigrant children in the child welfare system or in the care of the state, acquire Canadian citizenship.”
For more information on this subject, here is the link: https://www.canada.ca/en/immigration-refugees-citizenship/news/2018/02/government_of_canadafacilitatesaccesstocanadiancitizenshipformin.html
Source: IRCC website