Many retirees are given a neat sequence: spend taxable accounts, then traditional retirement accounts, then Roth. The sequence is easy to remember and can be expensive.
Why the slogan fails
Spending only taxable assets can create years with unused low tax brackets while pre-tax balances keep compounding. Later, required distributions and Social Security can crowd into higher brackets. Preserving every Roth dollar for the final decade can also be wrong if that decade never arrives or if current flexibility is more valuable.
Withdrawal order should coordinate taxable gains, ordinary income, Roth conversions, healthcare subsidies, future required distributions, and estate goals. It is a multi-year problem.
Think in layers
First fund cash needs from the least disruptive sources. Then decide how much ordinary income to deliberately create. That may mean a traditional withdrawal or conversion even when taxable cash is available. Next consider gain harvesting, loss harvesting, and Roth use for unusually expensive years.
A large medical bill, roof replacement, or family gift may be a Roth year because the account can fund spending without stacking more taxable income on top. A quiet low-income year may be a conversion year. The account used for spending and the account used for tax planning do not have to be the same.
Use a lifetime view
Project at least through Social Security and required-distribution ages. Compare total tax, not merely this year’s bill. Add ACA effects before Medicare and income-related Medicare premiums later. Leave room for uncertainty; tax law is not a thirty-year constant.
Coordinate this with the Social Security claiming decision and your taxable-brokerage bridge. The goal is not zero tax. The goal is to buy the most life with the least lifetime friction.
This article is educational, not individualized tax advice.
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