Hi,
Well I filed tax returns for 2015 through H & R block. My wife is here since dec 2015, I updated CRA records online.
Using any online tax return tools; I could not file return coz as soon as I say married on forms; system asked for wife SIN which I dont have coz she is here on visitor visa.
So I visited H & R block and explained them the story, they using their own in house system were able to file returns that includes my wife.
CRA processed the return and refunded me x amount.
In my opinion; you have to go to H&R block, its expensive around 160$ they charged me. but that is the way I found.
Thanks & Regards,
Jul2014