Managing taxes and other fees related to the payment of the car can be challenging. The taxes and fees may vary depending on the state and local laws, the value of the car, and the payment method. To manage taxes and fees, consult with a tax professional or an attorney who can advise you on the applicable laws and regulations. Keep accurate records of the transaction, including the payment, taxes, and fees. Also, ensure that you understand the terms and conditions of the transaction and any additional costs involved, such as shipping or delivery fees.