This report describes the work the Urban Institute performed to generate the Model of Income in the Near Term, Version 5 (MINT5). MINT is a tool developed for The Division of Policy Evaluation (DPE) of the Social Security Administration (SSA) to analyze the distributional consequences of Social Security reform proposals. MINT is a micro-level data file of individuals born between 1926 and 2018. It starts with a rich set of income and demographic characteristics from the 1990 to 1996 Survey of Income and Program Particpation (SIPP) data linked to SSA data on earnings and benefits. MINT then projects these characteristics until death or the year 2099.