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The Roth Conversion Mistakes That Could Cost You Thousands in Retirement

financial planning retirement income roth ira Jul 20, 2026
 

A Roth conversion can be a powerful retirement-planning tool, but simply moving money from a traditional retirement account into a Roth IRA does not automatically create a better financial outcome.

The real challenge is determining whether a Roth conversion is appropriate for you, how much you should convert, and when you should make each conversion.

Getting those decisions wrong could cause you to pay substantially more in taxes than necessary.

Why Consider a Roth Conversion?

Money held in a traditional IRA or another tax-deferred retirement account generally has not yet been taxed. When you withdraw that money, the distribution is typically included in your taxable income.

Once you reach the applicable age, the government may also require you to begin taking required minimum distributions, commonly called RMDs.

At first, those required withdrawals may appear manageable. However, if your retirement accounts continue to grow, your RMDs can become much larger as you move into your 80s and 90s.

That additional taxable income could push you into a higher tax bracket, increase the amount of your Social Security benefits subject to tax, and potentially create additional Medicare-related costs.

A Roth conversion allows you to pay taxes on a portion of your retirement savings now in exchange for moving that money into a Roth account. Qualified Roth withdrawals can then be tax-free, and Roth IRAs are not generally subject to lifetime RMDs for the original owner.

However, converting too much at once can create a large and unnecessary tax bill.

The Importance of Timing

An effective Roth conversion plan rarely involves converting an entire retirement account in a single year.

Instead, you may be able to spread conversions across multiple tax years. This gives you greater control over how much taxable income appears on each year’s return.

The goal is not simply to convert money. The goal is to convert the appropriate amount at an efficient tax rate.

That requires evaluating several factors, including:

Your current and projected future tax brackets, your spouse’s future tax situation, the size of your retirement accounts, your expected RMDs, and the tax consequences your beneficiaries may face when they inherit your assets.

Market conditions can also create opportunities. A temporary decline in the value of an investment may allow you to convert more shares while recognizing less taxable income.

Watch for Hidden Tax Bombs

One of the most overlooked parts of Roth conversion planning is the income already being generated elsewhere on your tax return.

Certificates of deposit, high-yield savings accounts, dividend-paying funds, and frequent short-term trading can all generate taxable income—even when you are not spending that income.

Someone may feel as though they are living modestly while still reporting a surprisingly high level of taxable income.

That matters because additional interest, dividends, and capital gains can make every dollar converted to a Roth more expensive.

For example, a conversion completed while these tax triggers are present could face a much higher effective tax rate than the same conversion completed after the portfolio and tax strategy have been adjusted.

This is why investment planning and tax planning should not be treated as separate conversations.

Build a Coordinated Conversion Strategy

A Roth conversion should be part of a broader retirement-income and tax plan.

Before converting, you need to understand what is currently appearing on your tax return, how future RMDs may affect you, how many years you have available to complete conversions, and which accounts or investments may be creating avoidable taxable income.

The earlier you begin analyzing these issues, the more flexibility you may have.

You do not want to wait until large RMDs have already begun forcing additional taxable income onto your return. By then, many of your best planning opportunities may have passed.

Are you wondering whether a Roth conversion belongs in your retirement strategy—or whether your current investments are creating hidden tax problems?

Schedule a consultation with Leibel Sternbach to review your retirement accounts, tax exposure, and available planning opportunities:

https://www.yields4u.com/pages/book

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