The short answer
Tax diversification means holding retirement savings across three types of accounts — tax-deferred like traditional IRAs, tax-free like Roth accounts, and taxable brokerage accounts — so you have flexibility to control your taxable income in retirement. With money in all three, you can choose which to draw from each year to manage your tax bracket, rather than being forced to take fully taxable withdrawals. This flexibility is valuable because tax rates and your income needs change over time. This is educational information, not tax advice.
So tax diversification is spreading savings across tax-deferred, tax-free, and taxable accounts to give you control over retirement taxes.
Why the three buckets help
Each account type is taxed differently, so having all three lets you blend withdrawals to hit a target taxable income. In a low-income year you might do a Roth conversion or realize gains; in a high-income year you might draw from Roth to avoid pushing into a higher bracket. Without Roth or taxable money, you would be stuck taking fully taxable traditional withdrawals. Our guide to Roth conversions in your 60s covers building the tax-free bucket.
The three buckets give you levers to pull each year, which a single account type does not.
How to build it
During your working and early-retirement years, contributing to or converting into Roth accounts, alongside traditional and taxable savings, builds the diversification. The right mix depends on your current and expected future tax rates, which is uncertain, so spreading across types hedges that uncertainty. Because it involves projecting taxes, professional planning helps. Our retirement income guide covers using the buckets in retirement.
The takeaway: tax diversification across Roth, traditional, and taxable accounts gives you flexibility to manage retirement taxes — build all three and hedge future rate uncertainty.
Frequently Asked Questions
What is tax diversification in retirement?
Holding savings across three account types — tax-deferred, tax-free Roth, and taxable — so you can choose which to draw from each year to manage your taxable income and tax bracket.
Why hold money in different account types?
Each is taxed differently, so having all three lets you blend withdrawals to hit a target income, rather than being forced into fully taxable traditional withdrawals every year.
How do I build tax diversification?
Contribute to or convert into Roth accounts alongside traditional and taxable savings during your working and early-retirement years. The mix hedges uncertainty about future tax rates.
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