While it's not ideal to electronically file after you've already paper filed, and the IRS will ask you not to do this, in all likelihood it will not delay your refund as has been stated. Why not? Because odds are that your electronically filed return (if successfully submitted) will be processed and your refund issued LONG before the IRS ever even sees your paper filed return. When it does get around to handling your paper filed return you'll likely get a letter about the duplicate filing, but other than causing more backups and delays at the IRS than already exist overall, it won't likely cause any real problems for you. @VEJTASA
