Question: How to file taxes after resignation with two employers?

Hi! Thank you in advance for anyone who can help.

I need help on how to file taxes for next year. For context:

August 2026: I will be resigning from Employer A

September 2026: I will start with Employer B

I know I will not be elegible for substituted filing with Employer B since I will start mid-year so I want to know how to proceed.

Please note that Employer A is my first job, hence the query.

Appreciate the help!