Down Market Roth Conversions?

I was cautious if my plans for Roth conversions during early retirement (low income) window would be negatively impacted in a down market. Avoiding politics 🤦🏻‍♂️, I was curious if these conversions would “lock in losses.” Asked AI 🤷🏻‍♂️.

“You’re asking exactly the right question—the interaction between market timing, tax brackets, and Roth conversions is where a lot of hidden optimization (or mistakes) happens.”

Core Insight:

Are Roth Conversions in a Down Market “Locking in Losses”?

Short answer: No—not in the same way as selling to cash. In fact, it can be advantageous.

Here’s why:

When you do a Roth conversion:

  • You are not exiting the market

  • You are simply moving assets from tax-deferred → tax-free

  • The shares remain invested (unless you explicitly sell)

So unlike selling to cash:

  • You are not locking in a loss permanently

  • You are relocating the same depressed assets into a better tax environment

The Key Mechanic

(This is the important part)

Let’s say:

  • Your $2,000,000 drops 25% → now $1,500,000

  • You convert $200,000 during the downturn

What happens?

  • You pay tax on $200,000 (lower valuation)

  • Those same shares move into Roth

  • If they recover 30–50% later:

All future gains are tax-free

This is effectively: “Buying your way into the Roth at a discount”

Compare Two Scenarios

Scenario A — Convert in a Strong Market

  • Convert $200k when market is high

  • Pay higher taxes

  • Future growth is tax-free

Scenario B — Convert in a Down Market

  • Convert $200k when assets are depressed

  • Pay less tax for the same number of shares

  • Recovery happens inside Roth (tax-free)

👉 Scenario B is often strictly better

The Real Risk (Subtle but Critical)

The only time this feels like locking in losses is if: You must sell assets to pay the conversion tax

Example:

  • Market down 25%

  • You liquidate shares to pay tax

  • Those shares don’t participate in recovery

That does lock in losses

To preserve the upside: Pay conversion taxes using:

  • Cash reserves

  • Taxable brokerage (ideally from gains or cash)

  • Not from the IRA being converted

Strategic Framing

Think of Roth conversions during a downturn as: “Transferring more shares into the tax-free bucket at a lower tax cost”

This is why many planners call downturns: “Roth conversion sales events”

But There’s a Tradeoff You Must Manage

Even though downturn conversions are attractive—you still must consider:

  • Your tax bracket ceiling

  • ACA / Medicare IRMAA thresholds

  • Future RMD projections

  • Longevity of low-income window

Where This Gets Sophisticated

The real optimization isn’t whether to convert in a downturn—it’s:

How aggressively to convert given:

  • Lower valuations

  • Lower income window

  • Future tax regime uncertainty

Michael Wei