What Will We Owe in Taxes, and Should We Consider a Roth Conversion?

Retirement taxes depend on more than your tax bracket. The types of income you receive, retirement account withdrawals, Social Security, deductions, filing status, and applicable tax rules can all affect the calculation. A Roth conversion may be worth evaluating in some situations, but it isn't automatically beneficial.

Now let's talk about one of the biggest questions in retirement planning:

What are we actually going to owe in taxes?

And right behind it:

Should we consider a Roth conversion?

These questions are connected.

But they aren't the same question.

What determines your retirement tax bill?

Your tax bill depends on your overall tax situation.

That can include:

Wages or business income

Social Security

Pension income

Traditional IRA or 401(k) distributions

Investment income

Capital gains

Roth conversions

Deductions and credits

Filing status

Applicable federal and state tax rules

That's why looking at one account in isolation can miss the bigger picture.

Why can retirement change your tax picture?

Your income may look very different after you stop working.

Let's say someone earns $150,000 while working.

Then they retire.

Their wages disappear.

Instead, they may have Social Security, retirement account distributions, investment income, and other sources of income.

That can create a very different tax calculation.

But here's the thing:

A lower-income year doesn't automatically mean a Roth conversion is a good idea.

It means the tax calculation may be different.

That's worth analyzing.

What happens during a Roth conversion?

A Roth conversion generally involves moving money from a traditional retirement account into a Roth account.

The taxable portion of the conversion is generally included in income for the year of the conversion.

Let's say, purely as an illustration, that someone converts $25,000.

That $25,000 could increase taxable income, subject to the applicable rules and the nature of the assets being converted.

The actual tax impact depends on the person's entire tax return.

So a $25,000 conversion doesn't automatically mean a $25,000 tax bill.

The conversion is additional income.

The tax owed depends on the broader tax situation.

Why does the amount converted matter?

Because the tax system is progressive.

Adding income can cause more income to fall into higher marginal tax brackets or affect other income-based calculations.

That's why the question isn't simply:

"Should we do a Roth conversion?"

It can be:

"Would converting $10,000, $25,000, $50,000—or nothing at all—change the long-term tax picture in a meaningful way?"

Those are different questions.

What about future tax rates?

This is where people sometimes get too confident.

You may hear:

"Taxes are going up."

Or:

"Taxes are going down."

The reality is that future tax laws and your future income are uncertain.

A Roth conversion involves paying tax under today's applicable rules in exchange for changing the tax treatment of those assets going forward.

Whether that tradeoff is worthwhile depends on the circumstances.

There is no guarantee that future tax rates will be higher or lower.

What else can a Roth conversion affect?

The conversion may have implications beyond the immediate federal income tax calculation.

Depending on the circumstances, additional income can affect things such as:

State income taxes

Taxation of Social Security benefits

Medicare-related income thresholds

Other income-based calculations

That's why a conversion should be viewed as part of the broader tax picture.

How do you evaluate a Roth conversion?

Start with the timeline.

What is your income this year?

What might it look like next year?

When might Social Security begin?

When might required minimum distributions begin?

How much money is currently in traditional retirement accounts?

How much is already in Roth accounts?

What other income and deductions are expected?

Then compare scenarios.

For example:

Scenario A: No conversion.

Scenario B: A smaller conversion.

Scenario C: A larger conversion.

The goal isn't to predict exactly what your tax bill will be decades from now.

It's to understand the tradeoffs of making a tax decision today.

So, should we consider a Roth conversion?

Maybe.

And that's exactly why it's worth analyzing rather than assuming.

A Roth conversion can be useful in some circumstances and less attractive in others.

The answer depends on your tax situation, income timeline, account balances, tax rates, and the assumptions used in the analysis.

The important question isn't whether Roth conversions are "good."

It's whether the numbers make sense for the situation being evaluated.

Because good tax planning isn't about finding a magic strategy.

It's about understanding the tradeoffs before you make the decision.

Happy planning.