Aria here, one of the Social Care gurus at Shopify.
If you're based in Alabama, that will be your business address for tax purposes. It doesn't matter that Printful is located in a different state because they are not officially part of your business. You are simply paying them for a service.
You can find out more about how sales tax works in this guide.
When it comes to the legal implications of starting a business, I would always recommend you take advice locally from a professional. Check out the guide to Business Licensing in Alabama as a place to start. You can get some general information in this Shopify guide but it does not replace professional legal advice.
If you need help in setting up your dropshipping business, make sure you sign up for the free courses on Shopify Academy. We have courses on Dropshipping, Print on Demand, Instagram Marketing, Email Marketing and more. We are introducing new courses and webinars on a regular basis.
Social Care Guru
I think it's unlikely you will need zoning for business when it's just you working by yourself from your laptop. I do however need to stress the importance of asking a professional local to you in order to make sure you're within the law. As Shopify gurus, we are not legal experts. We are a global company and the rules are different in different cities, never mind different countries. I don't want to risk giving you the wrong advice. You may have a small business bureau in your city or a business registration office where you can ask.
I hope you get the answers you are looking for.
Social Care Guru
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