Trade question for retail dealer.

If I as an individual trade a gun valued at $1000 for a gun valued at $1000 from a retail gun dealer is there any sales tax due? What if I as an individual trade a $1000 gun for an trailer valued at $1400 from a retail dealer, is the tax based on the $400 difference or the $1400 value of the trailer?

No sales tax if no money is transferred ($1000 gun for $1000 gun).

In your 2nd example, tax would be paid on the $400 difference.

Yep, just like a car purchase (except for the rate). Tax paid on money transferred.

Correct