This report provides an update on corporate use of internal carbon pricing globally and developments in carbon pricing regulation, informed by over 5,900 corporate disclosures to CDP in 2020. This incorporates relevant information derived from recommendations of the Task Force on Climate-related Financial Disclosures (TCFD), with which the annual CDP investor request for disclosure information is aligned. The last CDP report on this subject was published in 2017. CDP is the largest repository of information on how carbon pricing is viewed and used by public companies, with data collected every year since 2014. In 2020, CDP collected carbon pricing data from over 5,900 companies, which is explored in this report.