What accounts belong in an income statement?

Account names will vary based on the business type. Some businesses have income split into just one or a couple accounts and others have it split out into many.

Do you have a list of accounts that you're wondering about?

Any accounts that represent money received from outside the company. These would include revenues, sales, interest, investment income, etc.

All NOMINAL ACCOUNTS like all expenses, losses, and incomes and gains have to be closed by transferring their balances to the income statement at the year end to get the net profit.