You can apply for credit cards, loans and car loans right after discharging debts in Chapter 7 bankruptcy. However, the rates may not be ideal. You can apply for a mortgage 2-3 years after discharging as well.
Please keep in mind that Chapter 13 is a much longer process than Chapter 7, and you typically can’t get new credit approved while you are in it (the vast majority of Chapter 13 plans run for 5 years).
