It was suggested elsewhere that you would assess the value yourself, so if the only utility of your work is to hang it in your living room, you could claim it has $0 copyright value, and thus pay no tax.
The implication is that if someone decides to copy it, your claim for damages in court is based on that $0. But if your intent is to keep a private copy in your living room without the willingness to share with the public who gave you the privilege of copyright in the first place, perhaps that still remains fair.
The implication is that if someone decides to copy it, your claim for damages in court is based on that $0. But if your intent is to keep a private copy in your living room without the willingness to share with the public who gave you the privilege of copyright in the first place, perhaps that still remains fair.