I need a place to put T4A(OAS) pension income, where is that form I only see T4 forms.

Thank you for your question.

You must be sure to indicate which income slips he received in the Profile section, as well as selecting which slips you would like to enter in the Income section.

For more information about entering T slips into your tax return, kindly follow these links:https://turbotax.community.intuit.ca/questions/1190199-enter-t-slips-in-turbotax

https://turbotax.community.intuit.ca/questions/1189888-how-to-enter-t4a-p-canada-pension-plan-or-que...

Hope this helps!