Accordingly, do you get paid if you find an artifact?
Archaeologists do not keep anything they find, nor can they get any money for finding 'treasure'. The past belongs to everyone, and archaeologists exist to protect access to the past for future generations.
Beside above, what happens if you find ancient artifacts? The Antiquities Act of 1975 states that anything found must be reported to the Ministry of Culture and Heritage within 28 days. Then the ministry decides what to do with it. If the item was found before 1976, then it belongs to whoever found it.
Subsequently, one may also ask, what happens if you find an artifact on your property?
If it's on your property, it's yours to keep. Unless you sign a contract with a government agency, archaeologists, or educational institution which allows the other party to excavate on your property and keep the artifacts that are found, the artifacts are your property.
Can you buy artifacts legally?
BUY ONLY LEGALLY ACQUIRED ANCIENT ART
While there are indeed a number of laws governing the sale and purchase of items of cultural patrimony (antiquities), as long as an item has been legally imported into the United States, it's legal to sell and purchase.