Tax planning might be complex, but it's also essential—especially for high-net-worth families, where missing tax breaks or failing to optimize income could cost significant dollars, maybe millions, over a lifetime. And even in the short term, with the highest marginal federal tax rate sitting at 37% for 20241 (plus additional state and local taxes), a lack of tax planning could mean you keep less than half of every dollar you earn. Here are four tax planning tips that may help you optimize your finances.