Decide where you would like to open your Roth IRA. You can open it at a bank or at a brokerage firm. Find ot the options available from each entity before investing your money. Then, request an application, complete it and return it to the institution with your deposit, or you may have automatic payroll deductions deposited in your Roth IRA. Check with your financial advisor before investing to make sure that you are eligible for a Roth IRA and to make sure that you do not exceed the annual contribution amount.