Labour-services comes to mind. A “I build your house, you fix my car” kind of thing.
Trade “off the books”
Where I come from it is called “black labour service,” i.e. you pay the building materials “on the books”, but pay labour-services “off the books”. Or you pay the waitresses “off the books”, but the food “on the books”.
Hide trade “on the books”
Imagine a retailer. Some of the retail goods are sold to farmers as “critter candy” and “tarpaulin + accessories”, but in reality they are chocolate and toy trampolines respectively. This way the farmer can put it “on the books” as business expences and be exempt from paying sales tax. The same with gas to some extent, i.e. if you have a 10,000 gallon petrol tank for your farm machinery no one will notice if he uses 100 gallons a year to fuel his own, privately owned, car.
That is some of the ways. There are probably a lot more subtle ways [;)]
How does one get out of sales tax? That’s rather simple.
Most of the sales tax you pay will be in two things on a day-to-day basis. Groceries and gasoline.
Now, I don’t know how you can actually get out of the gasoline. It seems difficult to me and I’ve never ran into anyone promoting a gasoline black market - though I’m sure it exists. But that’s ok. You don’t have to go all the way to fourth phase action in the first phase! This is what people like the last poster do not understand and it is the reason why they make such little sense on the topic.
As for groceries, however, I’d suggest going to a Farmer’s Market. They’re all over the world and aside from being revolutionary, buying from a Farmer’s market is both cheaper and better for you too!
My point is that the thread was entitled, Agorism Question, and avoiding taxes has been done forever and isn’t related to Agorism ideology.
For example, Niccolo’s post about not being aware of anyone avoiding gasoline taxes. The russian mob and many others have been smuggling gasoline to avoid taxes for a long time.