By your 70s your pension and Social Security are likely your primary income sources and your investment portfolio is in distribution mode. The planning focus shifts from accumulation to preservation, tax efficiency, and making sure your money outlasts you.
Required minimum distributions begin at 73 or 75
Depending on your birth year RMDs kick in at either 73 or 75. You are now required to take money out of your pre-tax retirement accounts each year whether you need it or not.
If you have a large traditional 403(b) or IRA balance this can push you into higher tax brackets and increase your Medicare premiums through something called IRMAA surcharges. These are not hypothetical concerns. We see them trip people up regularly.
There are strategies to manage this. The RMD amount is calculated based on your account balance and life expectancy tables published by the IRS. Reducing the pre-tax balance through conversions before RMDs begin is one approach. Qualified charitable distributions, which allow you to send IRA money directly to a charity tax-free, is another. Neither is right for everyone but both are worth understanding.