Mary is 50 years old and has employment income of $83,000. CPP of $2,732 and EI of $856 was deducted from her pay for 2020. Mary is divorced and is the single parent of her fourteen-year-old son Evan. During 2020, Mary made charitable donations of $2,000. Mary also paid her dentist for $5,600 for braces and fillings for Evan and $400 for regular cleanings and checkups for herself.

Required:

Calculate the total amount of non-refundable federal tax credits that are available for Mary to deduct from her 2020 Federal Income Tax owing. You do not have to calculate her Federal Tax, just calculate the total amount of non-refundable federal tax credits that can be deducted from her Federal Income Tax Payable.