This is a helpful post, but there were a couple points that might have been overlooked. The OP didn't mention anything about having the papers notarized. This

This is a helpful post, but there were a couple points that might have been overlooked. The OP didn't mention anything about having the papers notarized. This is typically required, but perhaps not in Delaware? Also, as others noted, you'll often have to file for "foreign corporation" status in your home state. Once you have filed "foreign corporation" status in your home state, you will probably need to check whether your product or service is subject to sales tax. Then you will need to get a sales tax account. Depending on your jurisdiction, this may include both state and city or county sales tax accounts. You should also call up the IRS or file online to get a Tax ID number (TIN/EIN).