The U.S. Department of Health and Human Services, Administration for Children and Families, Office of Child Care, requires states to use information about the provider cost of child care to inform the setting of payment rates under the Child Care Development Fund (CCDF) program. This requirement is consistent with the growing recognition that payment rates for early childhood care and education (ECCE) through CCDF are often too low to fully reimburse providers for their costs. Drawing from a 2020 cost-of-care study for Oklahoma that was conducted by RAND researchers, this updated report will meet the CCDF requirement for Oklahoma to have a current narrow cost analysis to inform subsidy rate setting. This report also provides an opportunity to understand how ECCE provider costs may have changed since the onset of the coronavirus disease 2019 (COVID-19) pandemic, which took place just as the data collection for the 2020 study was completed. The authors adopted a two-pronged approach for this study: (1) collecting program and expenditure data from a sample of licensed providers, purposively selected to capture variation in key provider features that affect program structure and, therefore, per-child cost; and (2) developing a cost model (or calculator) with parameters informed by the information gathered from the sampled providers. The results from this updated report, with cost of care estimates for 2023, can continue to help policymakers in Oklahoma improve the access to and quality of ECCE. [This research was sponsored by the Oklahoma Partnership for School Readiness Foundation.]