Buy a ton of something where taxes are lower.

Drive it to where taxes are higher and sell it for less than they normally cost but more than you paid.

Normally it’s followed by buying drugs, writing bad checks, and not reporting the income because you don’t have a business tax ID or W2.

http://wnep.com/2016/03/31/nascar-driver-busted-in-largest-tobacco-smuggling-ring-in-north-american-history/