I am starting a online business selling pursues that I manufacture myself. I'm a military spouse and my home of residence is in Iowa. Currently, we are stationed in California. Do I have to collect sales tax from people who buy on my website from all 50 states or do I collect sales tax in California or Iowa purchasers? Also, do I have to pay tax to california or Iowa annually on the income I earn. My business is Internet only, and I have no physical address, I make the items from my home and sell them online and ship them myself.