In early 2021, New York City established a rainy-day fund, to better prepare for financial downturns. This report lays how the City can ensure resources are available when needed, by establishing a clear and written purpose for the funds, creating targets for how much should go into the fund each year and setting the conditions for withdrawals. The report also found the City’s reserve policies are not as robust as other large U.S. cities, and with recent changes in State and local law enabling the use of these funds, recommends the City define how these resources are accumulated and used.