Review Capital Gains and Losses
Calculate your net capital gains for the year.
Identify positions with unrealized losses that could offset gains.
Consider the wash sale rule before selling and rebuying.
Maximize Tax-Advantaged Contributions
Contribute to 401(k), IRA, or HSA before year-end deadlines.
Consider Roth conversions if you're in a low tax bracket.
Check contribution limits for the current year.
Plan Dividend Timing
Know when ex-dividend dates fall around year-end.
December dividends count as current-year income.
Consider selling before record date if you don't want the dividend.