I’m 65 With $1.4 Million. How Much Should I Convert to Roth?

Written by Jessica Cannella, Co-Founder and President
Reviewed/Updated: September 2026 

Intro

A Roth conversion can look simple: figure out how much room you have in your current tax bracket and convert that amount. But retirement spending, future required minimum distributions, Social Security, the surviving spouse, and what you plan to leave your children can all change the answer.
In this example, a married couple is age 65 with $1.4 million in a traditional IRA. They want about $100,000 a year of spendable retirement income, expect about $60,000 of combined Social Security at age 70, and are trying to decide how much of their IRA they should convert to Roth. The surprising result is that the biggest Roth conversion is not automatically the best one.

Quick Answer: How Much Should You Convert to Roth at 65?

There is no single Roth conversion amount that works for everyone. In this example, converting about $35,000 per year for five years brings the couple’s projected traditional IRA to about $1 million by RMD age, where the projected required distribution is close to the amount their spending plan actually needs from the IRA.
But that “equilibrium” amount is only a reference point. A couple who values more tax-free flexibility, protection for a surviving spouse, smaller future RMDs, or a larger tax-free inheritance may intentionally convert more. Someone focused primarily on maximizing money available for their own lifetime spending may decide to convert less.

Key Takeaways

  • Your tax bracket alone does not determine the right Roth conversion amount.
  • Normal retirement withdrawals can keep a traditional IRA from growing as quickly as an untouched-account projection suggests.
  • In this example, no Roth conversions leave the IRA at roughly $1.3 million when RMDs begin, with a first required distribution of about $52,000.
  • A conversion strategy of about $35,000 per year for five years brings the projected first RMD to roughly $42,000, close to the amount the retirement cash-flow plan needs from the IRA.
  • Converting more is not automatically better because paying taxes earlier removes money that otherwise could remain invested or available for spending.
  • A Roth balance can provide flexibility for large future purchases without adding the entire withdrawal to taxable income.
  • Roth assets can become particularly valuable after one spouse dies because the survivor generally has narrower individual tax brackets.
  • For families expecting to leave significant retirement assets to children, Roth conversions can change the after-tax value of the inheritance.
  • The real question is not simply, “How much can I convert?” It is “What am I trying to accomplish by converting?”

Who This Is For

This video and transcript are especially relevant if you:
  • Are approaching or already in retirement with a significant traditional IRA or 401(k)
  • Are considering Roth conversions before required minimum distributions begin
  • Expect to withdraw from your IRA for retirement spending rather than leave it untouched
  • Have money outside your IRA that could be used to pay Roth conversion taxes
  • Want more flexibility over taxable income later in retirement
  • Are concerned about the tax situation a surviving spouse could face
  • Expect to leave part of your retirement accounts to children or other heirs
  • Are trying to decide whether filling a tax bracket is actually the best Roth conversion strategy for your situation

Key Numbers From This Roth Conversion Example

Assumption Example
Age 65
Traditional IRA $1.4 million
Spendable retirement income goal $100,000/year
Combined Social Security at 70 About $60,000/year
Illustrative investment return 5%
IRA at RMD age with no conversion About $1.3 million
First RMD with no conversion About $52,000
IRA needed by spending plan at that point About $43,000
Illustrative Roth conversion $35,000/year for 5 years
IRA at RMD age after conversions About $1 million
First RMD after conversions About $42,000

 

Transcript

Okay, so you’re 65 with $1.4 million in a traditional IRA, and you’re considering a Roth conversion. Most people will ask: how much can I convert without hitting the next tax bracket? But that might be the wrong question. This couple isn’t going to leave the IRA untouched. They’re retired.
They’re going to spend from it. And once we include those withdrawals, the first surprise is that a huge conversion. May not be necessary at all. In our example, spending alone keeps the IRA from exploding. By the time the required distributions begin, the account is still around where it started, and the required distribution is only modestly above what they actually need from it.
So should they skip the Roth conversion? Not necessarily. Because a Roth conversion can be more about lifetime tax savings. It can be about flexibility, future tax uncertainty, what happened to the surviving spouse, and eventually what the kids receive.

Making the $1.4 Million Example Realistic

Let’s make this example realistic. They’re both 65. They have 1.4 million in a traditional IRA, and they want about $100,000 a year that they can actually spend after the taxes. And at 70, we’ll assume their combined Social Security is about $60,000 a year.
So before Social Security, the IRA has to fund the lifestyle that they want and the taxes that come with those withdrawals. After Social Security starts, the amount that they need from the IRA drops substantially. We’re gonna use a 5% return only as an illustration so we can compare decisions. The actual return doesn’t matter too much to this lesson.

What Happens With No Roth Conversion?

If they make no Roth conversions, but they take the withdrawals needed to support the amount of spending, the IRA is projected to be about $1.3 million when they when the required distributions begin. The first required distribution is about $52,000. But in this simplified cash flow model, their spending plan only calls for about 43,000 from the IRA to help deliver the 100,000 that they actually want to spend. That’s the first thing that I want you to see.
They do have some excess future taxable income, but this isn’t a runaway 2 million IRA that they’ve never touched. Spending has already done part of the job. And that changes the Roth decision. Now let’s test a conversion plan. One useful way to stress test that decision is to ask how much traditional IRA they may actually need later to support the retirement that they want.

Finding the Roth Conversion Equilibrium Point

Let’s say they convert about $35,000 a year for five years while still taking their normal withdrawals and paying the conversion tax from money outside of the IRA. The traditional IRA would then be projected to be about a million dollars when the required distributions begin. At that level, the first required distribution is about $42,000, roughly the same amount that the cash flow plan calls for from the IRA to support that $100,000 spending target. We call that the point of equilibrium.
Above that point, required distributions can start creating taxable income that they didn’t really need. And below it, they may have converted more aggressively than their spending plan required, and thus paid taxes earlier than they needed to. But I want to be careful with this. Equilibrium is not a formula for how much you should convert. It’s one useful reference point.
The right answer can land above it, below it, or nowhere near it, depending on what you’re trying to accomplish. This is the part Roth conversions often skip.

Why More Roth Conversion Isn’t Always Better

Let’s say this couple expects to spend most of their money during their own lives. Pushing the IRA far below that reference point may leave them with less money to enjoy in this illustrated tax environment. Why? They chose to send that money to the IRS. Those tax dollars are now not available to invest, spend, travel with, or use for something else.
So doing more Roth conversion is not automatically better. Sometimes the better decision is to keep more money pre-tax and pay the tax as you use it. But now we need to ask what is the Roth buying besides a future lower tax bill?

What Tax Diversification Actually Buys You

So let’s suppose they’re not 65, they’re 78 now, and they suddenly want an extra $100,000. Maybe it’s a major home project, maybe it’s a health event, or maybe they’re helping a child. If nearly everything is still in the traditional IRA, that extra withdrawal shows up as additional taxable income.
And that can have a ripple effect. It can increase provisional income and cause more Social Security to become taxable. It can affect income-related Medicare premiums. It can move other income into a different tax result. These ripple effects could result in thousands of more dollars in taxes or surcharges being owed.
But if they build a meaningful Roth balance, a qualified, Roth withdrawal gives them another place to get that money without adding that withdrawal to the taxable income. They could decide how much they withdrew from the Roth and how much from the IRA to manage their tax return and mitigate large, unexpected tax bills. That’s what tax diversification buys. Not a guaranteed tax savings, but another lever to pull when real life changes your plan.

What Happens When One Spouse Dies?

Speaking of real life changing the plan, what happens when one of the spouses dies? The household doesn’t suddenly lose half of the IRA. It may still have most of the same assets and many of the same expenses, but the survivor eventually will have to file as a single taxpayer with much less room inside of the tax brackets. At the same time, the household Social Security benefit usually drops from two checks to one. The good news is you’ll get to keep the larger of the two.
But that can leave the surviving spouse with a large pre-tax account, required distributions, and less forgiving tax environments. Many times we see a spouse’s income decrease a little when they lose their partner, typically by about 20%, but their taxes will increase. A Roth balance gives that surviving spouse a source of money that doesn’t have to add taxable income every time they need it. For some couples, that flexibility is worth paying more tax a day for, even if a spending-only analysis would have suggested smaller conversions.

The Roth Conversion Legacy Opportunity

And then there are the kids. If this couple is likely to spend nearly everything, legacy may not matter. Not to the Roth decision, at least. But if they’re likely to leave a meaningful retirement account behind, the comparison changes.
Under current rules, most non-spoused beneficiaries generally have to empty an inherited retirement account within 10 years. Traditional IRA distributions are generally taxable to the beneficiary. Qualified inherited Roth distributions are generally tax free, even though the account still has to be distributed under the beneficiary rules. To make that tangible, imagine $500,000 is still left when the children inherit.
If it’s in a traditional IRA, that money generally becomes taxable income to the children as the account is emptied. Again, 10 years to do so. If that same 500,000 is in a Roth, they can generally receive that $500,000 without federal income tax. That’s not just a cleaner asset, that could become hundreds of thousands of dollars reaching the next generation tax-free, potentially during the very years when the children are earning the most.
That can make converting during the parent’s retirement much more compelling from a family after tax perspective. Even if a larger conversion isn’t the best answer for maximizing the parent’s own lifetime account balances, the parents may choose to pay tax today, not because it maximizes every dollar they spend themselves, but because it can move a very large amount of money to the next generation tax-free.

So How Much Should You Actually Convert?

So how much should this couple convert? There isn’t one blueprint. The tax bracket is just one lens to look at. Another lens is the spending-based equilibrium. Mitigating tax and survivor risk is another.
None of those are usually the answer by itself. If their main goal is having the most money available to spend during their own lives, they may choose to convert less and keep more money invested instead of prepaying tax. But if they value more tax-free flexibility, less uncertainty about future tax rules, smaller required distributions. More protection for a surviving spouse or a much larger tax-free inheritance for their kids, they may choose to convert more and willingly pay the tax today.
And if those benefits aren’t important enough to justify the pack tax today, converting less, or sometimes not converting at all, could be the better choice. A Roth conversion in retirement isn’t about hitting some target in your IRA balance. It’s about deciding what you want your money to be able to do now and later, and how much tax you’re willing to pay. To create that flexibility.
So the question isn’t only how much can I convert this year, it’s what am I trying to accomplish with this conversion? And is the tax I pay today worth what it buys me later? If you want a deeper framework for thinking through the tax conversions, our Roth Conversion Strategies Guide covers retirement spending, tax thresholds, the surviving spouse test, legacy planning, and the point of equilibrium as one useful reference. And you can download that below.

Frequently Asked Questions About Roth Conversions

How much should I convert from a traditional IRA to a Roth IRA?

There is no universal amount. The appropriate conversion depends on your current taxable income, future retirement withdrawals, required minimum distributions, Social Security, other assets, survivor planning, legacy goals, and how much tax you are willing to pay today.
In the example in this video, approximately $35,000 per year for five years creates a useful equilibrium point, but that does not mean $35,000 is the correct conversion amount for someone else.

Should I convert enough to fill my current tax bracket?

Tax-bracket capacity is useful, but it should not be the only factor. Filling a bracket can cause you to pay taxes earlier than necessary if future retirement withdrawals would naturally reduce your traditional IRA balance.
The better analysis compares the tax paid today with what the Roth conversion is expected to accomplish later.

What is the Roth conversion point of equilibrium?

The point of equilibrium is the traditional IRA balance where projected required minimum distributions are roughly in line with the amount of IRA income the retirement spending plan actually needs.
It is a reference point, not a target. A retiree may intentionally convert above or below that point depending on other goals.

Can spending reduce the need for Roth conversions?

Yes. If you are already withdrawing from a traditional IRA to support retirement spending, those withdrawals reduce the account balance and can reduce future required distributions.
That is why modeling an IRA as though it will remain untouched can overstate the future RMD problem for someone who actually plans to spend from the account.

Is a bigger Roth conversion always better?

No. Roth conversions require you to pay income tax sooner. Those tax dollars are no longer available to remain invested, fund retirement spending, travel, help family members, or meet other needs.
A larger conversion makes sense only if the future benefits are worth the tax cost today.

How can a Roth IRA help with large expenses in retirement?

Qualified Roth withdrawals generally do not add to taxable income. That gives retirees another source of money when they have an unusually large expense.
For example, someone needing an additional $100,000 for a home project, medical need, or family support could potentially use a combination of traditional IRA and Roth withdrawals rather than generating the entire amount as taxable IRA income.

Why can Roth conversions matter more after one spouse dies?

After the death of a spouse, the survivor may retain much of the household’s retirement assets while eventually filing taxes as a single taxpayer. That generally leaves less room inside each tax bracket.
A meaningful Roth balance gives the surviving spouse another source of retirement money that does not necessarily increase taxable income when qualified withdrawals are taken.

Are Roth conversions useful for inheritance planning?

They can be. Most non-spouse beneficiaries generally must distribute inherited retirement accounts within 10 years under current rules.
Traditional IRA distributions are generally taxable to beneficiaries, while qualified inherited Roth distributions are generally federal-income-tax-free. That can make Roth conversion planning important for families expecting to leave significant retirement assets to children.

Should I pay Roth conversion taxes from the IRA?

In this example, conversion taxes are assumed to be paid from assets outside the IRA. Using outside money allows the full converted amount to move into the Roth rather than using part of the retirement account to cover the tax.
Whether that is appropriate depends on the household’s available assets and overall plan.

What factors should I consider before making a Roth conversion?

Start with what you are trying to accomplish. Consider your retirement spending, current and future tax rates, projected RMDs, Social Security, Medicare-related income thresholds, available taxable assets, surviving-spouse risk, expected inheritance, and the value you place on having tax-free money available later.
A Roth conversion is not simply a decision about this year’s tax bracket. It is a decision about how you want your retirement assets structured over the rest of your life.

Download the Roth Conversion Strategies Guide

Want a deeper framework for deciding whether, when, and how much to convert to Roth? Download our free Roth Conversion Strategies Guide for the key tradeoffs around taxes, RMDs, survivor planning, flexibility, and legacy.
There is no universal Roth conversion amount. The right amount depends on how much of your IRA you will actually spend, future RMDs, taxes, survivor needs, and legacy goals. In this $1.4 million example, a $35,000 annual conversion creates a useful reference point—but not necessarily the final answer.
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