The extensive literature documenting differences in wages between immigrant and native-born workers suggests that immigrants may enter retirement at a significant financial disadvantage relative to workers born in the United States. However, little work has examined differences in retirement resources and retirement security between immigrants and natives. In this article, we use data from the Health and Retirement Study linked with restricted data from the Social Security Administration to compare retirement resources of immigrants and natives. Our results suggest that while immigrants have lower levels of Social Security benefits than natives, when holding demographic characteristics constant, immigrants have higher levels of net worth. The estimated immigrant differentials vary a great deal by number of years in the United States, with the most recent immigrants being the least prepared for retirement.