Home › Checking Accounts › High-Yield Checking › Open a High-Yield Checking Account Open a High-Yield Checking Account. Are you a DuPage Credit Union member? Yes No Please make a selection. Next Would you like to add a credit card to your application?(Required to earn dividends) Yes No Please make a selection. Next Do you have a DuPage Credit Union checking account that you would like to switch to High-Yield Checking? Yes No Please make a selection. Next