gain tax rate is 0%. 少於50萬的話, LTC gain tax is only 15%.
如果你在某一年的收入比較少的時候, 比如 Take a unpaid long term leave, 就可以賣出一些 Long Term 的capital holdings at 0% tax rate.
詳情: https://www.investopedia.com/terms/c/capital_gains_tax.asp
退休後,先保持幾年的低收入,才能把 一小部分的401K 按低稅率 轉移至 ROTH .