[tdcbfdct3]

Yes you will be.

https://www.opensecrets.org/outsidespending/

[opportune]

What if I don’t tell the FEC?

What if I run an ad that’s not directly affiliated with a political campaign like via PragerU?

[sb057]

Then you've broken the law by failing to register under the appropriate channels and are subject to prosecution.

[kortilla]

Unlikely. Most small time stuff won’t ever be reported properly like that.