Core Insights - As the year-end approaches, many Americans are focusing on holiday activities, but it is also a critical time for financial deadlines that could impact tax liabilities and savings [1][2] Group 1: Financial Moves Before Year-End - The deadline for contributions to 401(k) retirement plans is December 31, with opportunities for catch-up contributions for those over 50 [3] - A significant number of employees are not maximizing their employer's 401(k) match, with 24% saving less than the match cap from 2013 to 2022 [4][5] - Tax loss harvesting is an underutilized strategy that allows investors to convert capital losses into tax savings, with the ability to offset capital gains and reduce taxable income by up to $3,000 [6][7]