Five Retirement Tax Opportunities Most People Miss

Most tax help is really tax preparation — reporting what already happened, as cheaply as legally possible. Retirement rewards a different discipline: arranging future income so that decades of taxes shrink. These five opportunities come up constantly in our planning work, and they're missed constantly everywhere else — usually because they live in the gap between what a tax preparer files and what a financial plan controls.

1 · The 0% capital-gains bracket is real — use it

Long-term capital gains are taxed at zero when taxable income stays under the threshold — for 2025, $96,700 for joint filers ($48,350 single). A retired couple with $62,000 of taxable income could deliberately realize roughly $34,000 of long-term gains, pay nothing federally, and even repurchase the same holdings to reset their cost basis higher. Gain harvesting is loss harvesting's neglected twin — and early retirement's low-income years are its natural season.

2 · Social Security timing is a tax decision, not just an income one

Delaying to 70 maximizes the check — often the right call. But claiming isn't one-size: for some households, claiming earlier preserves portfolio assets, or fills income years less valuably used, while for others the delay years are precisely what opens strategy #3. The point is that claiming age changes your tax picture for decades, and deserves to be modeled, not defaulted.

3 · Roth conversions: gradual beats grand

Converting a large IRA all at once triggers the very brackets you're trying to escape. Converting deliberately sized slices across multiple years — enough to fill low brackets, never enough to spill into high ones or across IRMAA lines — moves money to tax-free permanently, shrinks future RMDs, and hands heirs an income-tax-free inheritance instead of a taxable one. (Our full article on the conversion window covers the mechanics.)

4 · RMDs: plan for them a decade before they arrive

At 73 (75 for those born in 1960 or later), required minimum distributions begin whether you need the income or not — and large pre-tax balances can force taxable income that raises Medicare premiums and taxes on Social Security. The levers all work best early: conversions in the gap years, qualified charitable distributions after 70½, asset location, and for some, income products structured so required distributions align with income you actually wanted. An RMD problem visible at 65 is usually fixable; at 75 it's mostly payable.

5 · IRMAA: respect the cliff

Medicare premiums are means-tested against your income from two years prior — and the surcharge is a cliff, not a slope. One dollar of MAGI over the threshold ($212,000 joint / $106,000 single for 2025) raises both spouses' premiums for the entire year. A Roth conversion, capital gain, or even a home sale in the wrong year can cost a couple thousands in surcharges that a slightly smaller transaction would have avoided entirely.