We expect brick and mortar retail stores to collect sales tax. But individuals at the gun shows doing Private Sales are not necessarily subject to the sales tax law. Although its similar to a garage sale where sales tax is not reported. That bring me to my question. When a individual is selling firearms as "final out the door price" doesn't that imply that sales tax is included? And if he implies that sales tax is included, wouldn't they be obligated to forward the money to the State of Indiana. Otherwise, they are putting the sales tax money in their pockets as profit enhancement. If no sales tax is involved, two sales being equal, should one be 7% cheaper than the other?