Required minimum distributions trigger a domino effect of tax problems that many retirees never see coming. The IRS forces you to withdraw money from traditional IRAs and 401(k)s starting at age 73, and those withdrawals push income higher, which can trigger taxes on Social Security benefits, increase Medicare premiums, and expose you to the net investment income tax.
The seven traps work together. First, RMDs count as ordinary income. Second, that higher income can make up to 85% of your Social Security benefits taxable instead of tax-free. Third, your adjusted gross income rises, which determines Medicare Part B and Part D premiums for high earners. Fourth, the net investment income tax of 3.8% kicks in when modified AGI exceeds $200,000 for single filers and $250,000 for married couples. Fifth, RMDs can affect your eligibility for other tax credits. Sixth, you lose control over the amount and timing of income. Seventh, you cannot undo a large withdrawal.
The solution starts in your 60s, long before RMDs begin. Qualified charitable distributions let you send RMD money directly to charities after age 70.5, keeping that amount out of your taxable income. Roth conversions now, while you're in a lower tax bracket during early retirement, reduce the size of your future RMDs. Strategic withdrawals from taxable accounts before 73 let you manage your income level intentionally. Some retirees hire tax professionals to model different scenarios and timing strategies.
You can also use the "pro-rata rule" to your advantage by segregating pre-tax and after-tax dollars in IRAs. Life insurance and annuities offer other structures that defer or redirect income.
The window closes at 73. Every dollar you leave in a traditional IRA compounds tax