Tesla has benefited from a $7,500 customer tax credit on its Model S, Model X and Model 3 cars, which range in price from $50,000 to well over $100,000, depending on options. The tax-credit program begins to run out after a manufacturer sells 200,000 cars in the United States, which Tesla has surpassed. The credit amount will drop to $3,750 in January 2019 and to $1,875 in July, then will disappear in January 2020.
Source: Los Angeles Times September 04, 2018 18:25 UTC