I'm not trying to avoid paying any taxes that I owe. My understanding is that, until now, sales tax has not been collected on out-of-state internet sales because it is not owed. Here's how a recent article described the issue:
"The United States Supreme Court has sided in favor of states collecting online sales tax in the South Dakota v. Wayfair decision. The Court has ruled that states are allowed to collect tax from online retailers even if companies don’t have a physical presence in the state.
"In what has been called the 'tax case of the millennium,' South Dakota was looking to repeal the 1992 Quill v. North Dakota decision, which ruled that companies could only charge sales tax in states where they had a physical presence, like corporate offices or a warehouse." (https://www.racked.com/2018/6/21/17488548/south-dakota-wayfair-supreme-court-decision)
So, unless I am mistaken, in the past, if you purchased something from an out-of-state internet merchant, you owed no sales tax to the state in which you reside because, under the Quill v. North Dakota decision, your state had no legal authority to collect sales tax. Under the Wayfair decision, they are now permitted to require an out-of-state internet merchant to collect sales tax on their behalf.
Am I wrong?