This document provides a quick reference guide comparing features of various retirement plans including IRAs, SEP/SAR-SEP IRAs, SIMPLE IRAs, SIMPLE 401(k)s, profit sharing/money purchase 401(k)s, and defined benefit plans. It outlines details such as annual contribution limits, eligibility requirements, deadlines, vesting schedules, and taxation of distributions for each type of plan. The guide is intended to help individuals and employers understand their options for tax-qualified retirement savings plans.