Should You Convert to Roth After Your Portfolio Falls in Value?

Ross Marino |

You had already considered a Roth conversion when your portfolio fell. Now the lower value can make converting look attractive, while the same decline makes you more protective of the money supporting retirement. Both reactions deserve a place in the decision.

A decline changes the comparison. It does not establish the answer. Start by identifying what you intended to convert: a particular investment position or a particular dollar amount. Then ask whether that choice still leaves enough flexibility for spending and taxes.

What becomes cheaper after the decline?

For an eligible traditional IRA conversion, the taxable portion enters ordinary income in the conversion year. Converting a fixed investment position after its value falls can mean recognizing less income than converting that position before the decline. The relevant value is the value transferred, not the investment’s earlier purchase price. [1]

Holding the dollar amount constant changes the choice: the same dollars can buy more shares at the lower price. For entirely pretax IRA money, that does not reduce the dollars entering income. Verified after-tax IRA basis can make part of a conversion nontaxable, generally using the combined traditional, SEP, and SIMPLE IRA calculation rather than selecting only previously taxed dollars. [2]

Same shares

Same dollar amount

What moves

The same number of shares.

What moves

Enough shares to reach the chosen dollar amount.

What changes after the decline

That position may enter the Roth at a lower taxable value.

What changes after the decline

More shares may move; the taxable dollars do not automatically fall.

What still needs support

The tax on the lower value and the remaining retirement plan.

What still needs support

The tax on the chosen amount and the remaining retirement plan.

Both paths need cash for taxes, protected spending reserves, and room for continued market risk.

What still needs protection?

Moving investments into a Roth changes their tax location. It does not remove their investment risk. The same shares can fall further after conversion, and no account label promises a recovery. [3] A completed conversion cannot be reversed through recharacterization if values fall again. [1]

The practical constraint may be cash. Money already assigned to living expenses, a home repair, or family support cannot also pay conversion taxes without changing something else. Accessible reserves help you meet needs without being forced to sell investments during a decline. [4] Keep those commitments visible before calling cash “available.”

Tax-free Roth treatment also has conditions. Qualified withdrawals generally require the Roth five-tax-year period plus age 59½ or another qualifying condition. Before age 59½, separate conversion five-year rules and distribution ordering can affect penalties. [2] Do not count recently converted money as unrestricted spending cash without checking the applicable rules.

Dovetail Principle: Planning Helps You Decide When the Future Is Unclear

You do not need to know where markets go next to make a deliberate choice. You need to understand what each conversion amount asks of your household, which resources remain protected, and whether you could live with the decision if the recovery takes longer than hoped.

Should you keep, resize, stage, or defer the plan?

Compare the alternatives using the same retirement spending assumptions. If the conversion looks workable only after quietly cutting travel, delaying repairs, or reducing a reserve you still want, make that tradeoff explicit. A larger Roth balance is not the only result that matters.

Keeping the original plan may fit when its purpose, tax capacity, and funding remain sound. Confirm whether “original” means the same shares or the same dollars; after a decline, those instructions produce different transfers.

Resizing may fit when a smaller conversion preserves the cash you need. Staging lets you convert a supportable portion and reconsider the unconverted balance as circumstances become clearer. Each completed portion remains irreversible, and later prices or tax circumstances may be less favorable. Staging preserves a future choice; it does not guarantee a better price.

Deferring may fit when the tax payment would weaken spending security or the household’s tax picture remains too unsettled. That decision can include a specific review trigger, such as replenished reserves or clearer income, without depending on a predicted market bottom.

What would make the decision supportable?

Conversion research shows why funding sources, investment horizons, and current versus future tax circumstances belong in the comparison. [5] Its results depend on assumptions about returns, distributions, and taxes; an older model’s favorable outcome is not a forecast for your household. [6]

Have your advisor compare keeping, reducing, staging, and postponing the conversion if markets fall further or recover slowly. Have the appropriate tax professional determine the household-specific federal and state tax result and payment approach, including any withholding or estimated payments. If an RMD is due, that required amount is not eligible for conversion. [1]

Land on an amount and timing you can support across those possibilities. The conversion should leave the household able to pay its taxes, fund its life, and remain comfortable with the investment risk it still owns.

For a closer look at the cash side of this decision, read Should You Pay Roth Conversion Taxes From the IRA or From Other Savings?.

About the author

Ross Marino, CFP®, CeFT®, is the Founder & CEO of Dovetail Financial and creator of Human-First Financial Guidance®. He helps people nearing or living in retirement connect their lives and wealth so that financial decisions become clearer, more personal, and easier to navigate.

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Notes

  1. Publication 590-A (2025), Contributions to Individual Retirement Arrangements (IRAs), Internal Revenue Service.
  2. Publication 590-B (2025), Distributions from Individual Retirement Arrangements (IRAs), Internal Revenue Service.
  3. Risk, FINRA.
  4. Financial Foundations, FINRA.
  5. A ‘BETR’ approach to Roth conversions, Vanguard research, July 2025.
  6. The Arithmetic of Roth Conversions, Edward F. McQuarrie and James A. DiLellio, Journal of Financial Planning, May 2023.

Disclosure

This content is provided by Dovetail Financial Group LLC (“Dovetail Financial”) for informational and educational purposes only. It is not intended as, and should not be construed as, individualized investment, tax, legal, or accounting advice; a recommendation to buy or sell any security; or a recommendation to adopt any investment strategy. Because each person’s situation is unique, readers should consult their own financial, tax, and legal professionals before taking action based on this content. Information contained herein is believed to be reliable, but its accuracy or completeness is not guaranteed. Any opinions expressed are current as of the date of publication and are subject to change without notice. All investing involves risk, including the possible loss of principal. Asset allocation and diversification do not guarantee profits or protect against losses in declining markets. Past performance is not a guarantee of future results. Dovetail Financial Group LLC is a registered investment adviser. Registration does not imply a certain level of skill or training. Additional information about Dovetail Financial Group LLC, including Form ADV Part 2A and Form CRS, is available at adviserinfo.sec.gov. © 2026 Dovetail Financial Group LLC. All rights reserved.