I have a T4 from ontario (ex employer) and a T4 and T1 from quebec (current employer) I moved to QC during the year.

[Touil.Manal]

I have a T4 from ontario (ex employer) and a T4 and T1 from quebec (current employer) I moved to QC during the year. how to file ?

[TurboTaxSusan]

If you lived in Quebec on Dec 31st of the year, you'll choose Quebec as your province. Then you can enter both your T4 slips, as well as the RL-1.