In Texas private sellers can rent a booth at a gun show and sell without performing a NICS check.

https://www.thoughtco.com/gun-show-laws-by-state-721345

And the laws still apply to them. They are not allowed to sell to anyone not allowed to legally own a firearm, e.g. under 18, felon, out of state. If they do they are committing a crime.

And they will need an FFL if they make a business of selling privately.

The law also says they need to file taxes on that purchase, but what is required and what people actually do often differs

>The law also says they need to file taxes on that purchase, but what is required and what people actually do often differs

I think you inadvertently hit on why people are opposed to further gun regulation. The people committing the crimes aren't gonna follow the law and it stands to only further burden regular citizens.

There is more than one kind of regulation. Regulating people with an incentive to obey (professionals running businesses, like stores or shows) makes it harder for criminals to obtain guns they aren't allowed to possess.

>Regulating people with an incentive to obey (professionals running businesses, like stores or shows) makes it harder for criminals to obtain guns they aren't allowed to possess.

Can you give me an example of how this would work?

Just to clarify, private sellers couldn't perform a NICS check even if they wanted to. There were some proposals to open the system up to regular people (kind of akin to my understanding of how Switzerland does BG checks), but they never passed.

Anyways, it's kind of a moot point in California because that's a felony here.

A private seller can utilize a NICS check with an FFL if they choose. It's up to the private seller.

The fees from that are rather exorbitant. At least around me, most FFLs charge $100-$200 since they'd rather you buy from them directly (except for PPT transfers, where the cost is legally capped at like $50). IMO people should be able to run BG checks at cost.