Roth conversion opportunities often occur during retirement gap years, income changes, or market downturns.
“Gap years”, the period between retirement and required withdrawals, often offer lower-income windows that allow for tax-planning flexibility. Market declines can also change the math by reducing the market value of conversion amounts.
These windows don’t appear every year, which is why recognizing them can matter a lot.
What tradeoffs should be evaluated before converting from a traditional IRA to a Roth?
Conversions increase taxable income in the year they occur. That can affect marginal tax brackets, the taxation of Social Security, Medicare premiums (which are based on income from two years prior), and other income-based thresholds. At the same time, converting reduces future required minimum distributions (RMDs), since Roth IRAs do not require lifetime distributions for the original owner.
The goal isn’t to convert as much as possible; it’s to evaluate how conversions fit into the broader tax, cash flow, and estate plan.
Here’s a simple example of how a $100,000 traditional IRA to Roth IRA conversion works. (Numbers are hypothetical and for illustration only.)
If you convert $100,000 from a traditional IRA to a Roth IRA, the full amount is treated as ordinary income in the year of the conversion. Assuming a combined federal and state tax rate of 24%, the estimated tax owed would be $24,000. Ideally, the tax is paid with cash outside the IRA so the full $100,000 can move into the Roth and continue growing tax-free.
After the conversion, future growth and qualified withdrawals from the Roth are tax-free under current rules, and the account is not subject to RMDs during your lifetime. Because conversions can affect taxes, cash flow, and Medicare premiums, they’re typically reviewed as part of a broader retirement and tax planning discussion rather than separately.
Roth conversions should be part of an overall strategy. They interact with withdrawal strategies, beneficiary planning, healthcare costs, and long-term tax considerations. Reviewing them as part of a full retirement planning discussion often leads to better income and tax considerations.