Student loans, recent taxes, child support, alimony, and debts from fraud typically survive bankruptcy. However, older tax debts (usually 3+ years) can often be discharged in Chapter 7. Some student loans may be dischargeable if you can prove undue hardship, though this is difficult. Secured debts like mortgages and car loans continue, but you can choose to surrender the property and eliminate any deficiency balance. Most credit cards, medical bills, personal loans, and old utility bills are completely eliminated.