A 65-Year-Old Converted $410,000 of His IRA to Roth Before RMDs Hit. Here’s What Happened to His Tax Bill and His $6,500 Monthly Paycheck

Résumé détaillé

Converting everything at once looks simple, but one lump-sum move can trigger a steep tax bracket and a Medicare surprise two years later. A smarter timing window before forced withdrawals begin changes the math, and the paycheck it funds may not be what you expect.

Picture a 65-year-old retiree reading a projection of the withdrawals his traditional IRA will force on him later. Those forced withdrawals, called required minimum distributions (RMDs), get taxed as ordinary income whether he needs the cash or not. He decides he'd rather pay some tax now. He moves $410,000 into a Roth IRA, where the money grows and later comes out tax-free. His goal is a $6,500 monthly paycheck. The reality is that he's an example case, and every figure here was pulled in mid-November 2026.

Say he was born in 1961. In that case, federal law sets his RMD age at 75, because he turns 74 after 2032 (26 U.S.C. § 401(a)(9)(C)(v)). His withdrawals would start in 2036. Every year before then is a year he can convert.

For 2026, a married couple filing jointly gets a $32,200 standard deduction, and the 24% bracket runs up to $403,550 of taxable income. If he has no other income and converts everything at once, the federal bill comes to about $75,472, assuming only he qualifies for the additional age-based standard deduction. Most of that is taxed at 24%.

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Spreading out the conversion over four years at $102,500 a year keeps every piece in the 12% bracket. Total federal tax falls to about $28,808, saving $46,664 compared with converting everything at once. Ultimately, those quiet years between his last paycheck and his first RMD offer the lowest tax rate he'll see again, and we sized up the whole window in a free Roth conversion guide. We've covered the same slow-drip approach before, with a couple converting $35,000 a year at 12%.

If he pays the tax out of a regular securities firm account, the full $410,000 keeps working inside the Roth.

Medicare charges higher earners an…

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