Most retirees treat state income tax as a footnote in the Roth conversion decision.

What federal bracket am I in today? How large will my required distributions get? How much can I convert without creating unnecessary Medicare costs?

Those are important questions, certainly.

But if you live in Pennsylvania and expect to move someday, there’s another question that can change the math: Where will you live when these retirement dollars finally come out?

Because your answer could decide when you convert.

Pennsylvania Leaves Your IRA Alone

To be sure, Pennsylvania treats retirement money differently than the IRS does.

That’s because when you convert a traditional IRA to a Roth, the IRS taxes every pre-tax dollar that year. The Pennsylvania Department of Revenue, on the other hand generally doesn’t.

And once you’re 59½, Pennsylvania doesn’t tax your traditional IRA withdrawals either.

Put those two rules together, and Pennsylvania takes nothing whether you convert or not.

So if you’re staying in Pennsylvania, state tax isn’t a factor in your Roth decision. The decision rests entirely on federal math like, your federal rate future required distributions, when Social Security begins and the like.

Pennsylvania only becomes a factor when you plan to leave.

The Opportunity Appears When You’re Planning to Move

How so?

Well, suppose you expect to leave Pennsylvania in a few years to be closer to family, and your new state taxes IRA withdrawals.

Now you have a situation where there’s a state tax to avoid.

On the other hand, if you convert while you’re a Pennsylvania resident, then state takes nothing.

Wait until after the move, and your new state taxes your withdrawals.

And here’s the best part: Your IRA doesn’t remember where you earned it.

Federal law says only the state you live in when the money comes out can tax it.

So then, once you leave Pennsylvania, your new state is the one with the claim. Note: the opposite also applies.

That’s the real Pennsylvania Roth conversion advantage.

It isn’t simply that Pennsylvania is tax-friendly.

Now here’s the thing, Pennsylvania doesn’t give you a few years to convert without a state tax bill.

That window closes the day you move.

While you’re a resident of another state, you lose the benefit of Pennsylvania’s tax treatment and become subject to that state’s rules.

Consider a Pittsburgh Couple Planning to Move

Consider, for example, a hypothetical couple, both 63.

They recently retired in Pittsburgh with most of their savings in traditional IRAs. They plan to stay about four more years before moving closer to their grandchildren.

Their future state taxes IRA withdrawals. For simplicity, let’s say those dollars would face a state tax rate of about 5%.

The first thing I wouldn’t do is tell them to start converting $100,000 a year.

We start with the retirement-income timeline.

When does their paycheck stop completely?

When will Social Security begin?

How much income will their taxable portfolio produce?

How much will they need from their investments to support their lifestyle?

When will required minimum distributions begin?

What does their federal tax picture look like year by year?

And now there’s another date on that timeline: When do they stop being Pennsylvania residents?

Only after we build that baseline do we start testing conversion amounts.

So then, let’s say our analysis shows that converting $100,000 a year for four years fits their target federal bracket without creating side costs big enough to undo the benefit. They pay the tax from cash, so the full amount goes to work in the Roth.

Over four years, they convert $400,000.

The IRS still gets its share. Pennsylvania takes nothing.

Now consider the alternative.

They leave the same $400,000 in their traditional IRAs and withdraw it after they’ve moved.

At an illustrative 5% state rate:

$400,000 × 5% = $20,000.

That’s about $20,000 in state tax on the same $400,000 of retirement money.

This example isolates the state-tax question on purpose. It assumes their federal rate would be about the same either way.

Real planning is messier.

Investment growth, federal brackets, deductions, Medicare premiums, Social Security taxation, future tax law, their new state’s rules and the timing of withdrawals can all change the result.

The $20,000 isn’t the conclusion.

It’s the signal that there’s something worth modeling.

This Changes How I Build the Conversion Timeline

Indeed, this is where knowing a tax rule and doing tax planning part ways.

Because knowing Pennsylvania doesn’t tax the conversion is information.

The planning work is figuring out whether that fact matters for your household.

To be sure, in our planning process, we don’t start with “How much should you convert?”

We start with the income timeline.

I want to see what your tax return could look like over the next 10 or 15 years before we deliberately add income to it.

We map when your paycheck stops, when Social Security and pensions start, and when Medicare enters the picture. We map when required distributions begin, how much your portfolio needs to provide, and how big your traditional IRA could get if we do nothing.

Then we model different conversion schedules.

One might involve no conversions.

Another might fill the remaining room in a target bracket.

Another might cross into the next bracket on purpose because the long-term result still looks better.

For a Pennsylvania client planning to relocate, I’d add one more point: What changes if we finish more of the conversions before the move?

This isn’t just theory. Research by Edward McQuarrie and James DiLellio in the Journal of Financial Planning shows that conversion results hinge on your tax rate today versus later, how long the money has to grow, and where the cash to pay the tax comes from.

A move adds another tax rate to that math.

So then, instead of treating the move as a lifestyle decision over here and the conversion as a tax decision over there, we put them on the same timeline.

That’s the coordination.

I’d Work Backward From the Move Date

Once a client has a real relocation plan, the analysis gets sharper.

For our couple, the move is about four years out.

Now we know the conversion window isn’t unlimited.

We can work backward and start asking question like:

• What does taxable income look like this year?
• How much room is there before the next federal bracket?
• Will the added income trigger a Medicare surcharge down the road?
• Will Social Security start before the move?
• Is there cash on hand to pay the conversion tax instead of withholding it from the IRA?
• Could investment gains or losses change how much we want to convert?
• Should we convert the same amount each year, or does one year have a lot more room than another?
• And how sure are we about the move?

That last question matters.

Because tax planning shouldn’t be built around a move you’ve only daydreamed about.

But if you’ve picked the destination, bought property or set a date, the move belongs in the plan.

Your move date can matter as much as your federal bracket.

The State-Tax Advantage Still Doesn’t Make Every Conversion a Good Conversion

Now, none of this means you should convert as much as possible before you leave if you’re planning to move out of a tax-advantaged state like Pennsylvania.

Indeed, saving 5% in future state tax doesn’t justify paying a much higher federal rate today, if there isn’t a long-term net gain.

Maybe another $100,000 would push a big chunk of income into a higher bracket with no net benefit.

Maybe it triggers a Medicare surcharge.

Maybe paying the tax would drain cash you need for the first few years of retirement.

Maybe your new state has its own break for retirement income.

Or maybe you’re moving to a state with no income tax at all, where there’s no state bill to get ahead of.

Any of those can shrink the advantage or erase it.

That’s why I wouldn’t compare Pennsylvania’s zero to another state’s headline rate and call the difference “savings.”

Your new state’s actual rules matter.

Your federal return matters.

The timing matters.

And the amount you convert matters.

A Roth conversion is still a multi-year tax decision, not a state-tax arbitrage trade.

Your Move Date Can Become Part of Your Retirement Tax Window

Now, i’ve written before about what I call the income tax valley. It’s the stretch after your paycheck stops but before Social Security and required distributions start filling up your tax return.

For many retirees, those years offer rare control over how much taxable income they report.

A planned move out of Pennsylvania adds a second boundary to that window.

You have the federal window that retirement creates.

And inside it, you may have a Pennsylvania window. Inside that window, your conversion only answers to the IRS.

That changes how I think about the planning horizon.

Think back to our couple. They retired at 63, plan to move around 67, and won’t face required distributions for years after that.

The question isn’t just: How much can we convert before RMDs?

It becomes: How much, if any, should we convert before leaving Pennsylvania?

Those are different questions.

And the second one has an earlier deadline.

The Goal Isn’t to Avoid State Tax at Any Cost

When it comes down to it, good retirement tax planning isn’t about finding one tax to dodge and rebuilding your plan around it.

It’s about coordinating the decisions you already expect to make.

Because if you’re staying in Pennsylvania, the state’s treatment of conversions won’t tip your decision, given that your IRA withdrawals get the same break.

But if you already expect to move, leaving residency out of the analysis leaves out a variable that matters.

That’s why the conversion decision should include more than your current bracket.

It should include your retirement-income timeline.

Your future required distributions.

Your Social Security and Medicare decisions.

Your cash-flow needs.

And, when it’s relevant, where you’ll live.

Because Pennsylvania gives you the rule.

But proper planning tells you whether the rule is worth using.

The Bottom Line

Pennsylvania doesn’t tax your Roth conversion. Once you’re 59½, it doesn’t tax your IRA withdrawals either.

So staying put doesn’t create a special state-tax reason to convert.

Planning to leave might.

What this means is that if you’re moving to a state that taxes retirement income, don’t build your conversion timeline around your federal bracket alone.

Put your move date on the same timeline.

Then find out how much of your tax window closes when you cross the state line.

Related Reading

A Roth Conversion Is Not the Goal

The Retirement Tax Window Most People Miss

Five Reasons Why a Roth Conversion Might Be Right for You

The Tax Bill You’re Leaving Your Kids

Sources

Pennsylvania Department of Revenue, “Taxability of Roth IRAs According to PA Income Tax Rules.”
https://revenue-pa.custhelp.com/app/answers/detail/a_id/274/~/taxability-of-roth-iras-according-to-pa-income-tax-rules

Pennsylvania Department of Revenue, PA Personal Income Tax Guide: Gross Compensation.
https://www.pa.gov/agencies/revenue/forms-and-publications/pa-personal-income-tax-guide/gross-compensation

Internal Revenue Service, Publication 590-A, Contributions to Individual Retirement Arrangements (IRAs).
https://www.irs.gov/publications/p590a

Edward F. McQuarrie and James A. DiLellio, “The Arithmetic of Roth Conversions,” Journal of Financial Planning, May 2023.
https://www.financialplanningassociation.org/learning/publications/journal/MAY23-arithmetic-roth-conversions-OPEN

Michael Kitces, “Why Moving To A Lower-Tax State Doesn’t Always Result In Lower Taxes On Deferred Income.”
https://www.kitces.com/blog/moving-lower-tax-state-income-employee-stock-options-iso-nonqualified-deferred-compensation/

Michael Kitces, “Harvesting Capital Gains Vs. Roth Conversions At 0% Tax Rates.” https://www.kitces.com/blog/navigating-income-harvesting-strategies-harvesting-0-capital-gains-vs-partial-roth-conversions/