I have 5 T2202A forms from my 5 years enrollment in a program during 2010-2015 years. I have never claimed for my T2202A's in my tax returns since then, and this year (2018 tax year) I want to claim for them. The question is whether I can enter all five forms in my tax return for 2018? If yes, how do I go about it, since the sum number of full-time enrollment months for the tuition period is over 12. If not, then how does it work? Does this mean that I can only claim for one T2202A form at a time? Do I get to choose which of my 5 forms to enter in my 2018 return, or does it have to follow chronological order, meaning this year I claim for 2010 T2202A, then next year I claim for 2011 and so on? Thanks!