BACKGROUND: As the United States transitions toward value-based payment, value assessment tools to measure the value of health care interventions are emerging. As the field evolves, it is important to evaluate how these tools are influencing treatment and coverage decisions. OBJECTIVE: To examine payer perceptions and use of US value assessment tools and identify how these tools inform payer decision-making. METHODS: A double-blind, web-based survey was conducted from June to July 2022 to assess health care payers' perceptions and use of value assessment tools developed by the American Society of Clinical Oncology, Drug Pricing Lab, Institute for Clinical and Economic Review (ICER), Innovation and Value Initiative, and National Comprehensive Cancer Network. RESULTS: 51 respondents completed the survey. 86% of payers were familiar with at least 4 of 5 value assessment tools. Both ICER and National Comprehensive Cancer Network tools are perceived as very useful for informing formulary decisions (57% and 49%, respectively). When selecting a value assessment tool, payers identified the inclusion of appropriate metrics and outcomes (92%), comparative clinical effectiveness information (88%), and reliance on rigorous, unbiased methods (86%) to be very/extremely important. Payers reported the inclusion of the patient, provider, and societal perspectives as lower importance (32%, 31%, and 20% identify these elements as very/extremely important, respectively). Payers reported using ICER evidence reports to both expand and restrict coverage decisions. To advance more useful and relevant value assessment tools, payers identified the need for greater stakeholder awareness of existing tools, and some recommended that value assessors increase the volume of assessments conducted. CONCLUSIONS: US health care payers perceive select value assessment tools to be useful for informing health care decisions. As policy momentum behind value assessment builds, additional examination of value assessment tools is needed to inform appropriate application of value assessment in US health care decision-making. DISCLOSURES: This study was funded by Xcenda/AmerisourceBergen. Ms Buelt, Ms Loo, Ms Westrich, and Drs Hydery and Zheng report employment with Xcenda/AmerisourceBergen. Drs Dharbhamalla and Graff report employment with AMCP.