When filing for myself and my husband , do I add his T4 ect all together with my stuff ? Or is it a separate page and process for all of his stuff ?

If you are preparing your returns together and are using TurboTax Online 2024, you can switch between spouses by clicking on the names at the top of the page.

Then you can click on the “Income” card or search for what you need to enter for your husband.