Hello I"m trying to find out if I have to register my LLC with an EIN # with Indiana even though I have it registered with Delaware State?

Yes, if your LLC is conducting business in Indiana, you will likely need to register your LLC with the state of Indiana and obtain an EIN (Employer Identification Number) from the IRS. Even though your LLC is registered in Delaware, if it is actively doing business in Indiana, it will need to comply with the state's regulations and requirements. It is always a good idea to consult with a legal professional or accountant to ensure you are following the necessary steps for your specific situation.