Tesla: The Trump tax bill may pose significant challenges in the coming months.

Tesla warns that US President Trump's $3.4 trillion fiscal plan will pose significant challenges for the company in the coming months. The legislation cancels civil penalties that automakers were previously required to pay to the regulatory agency responsible for US fuel economy standards. Tesla's CFO Vaibhav Taneja said during the second quarter earnings call on Wednesday that the legislation will impact Tesla's business of selling regulatory credits to competitors, resulting in "profit decline," which has been a significant source of revenue and profit for the company in the long term. He stated, "While selling regulatory credits is not our core business, it will still impact our future total revenue." The legislation also specifies that the $7500 electric vehicle purchase tax credit will expire after the end of September. Taneja indicated that the company may not be able to guarantee delivery of Tesla's new vehicles ordered in late August and beyond before the expiration of the tax credit.