Our latest blog focuses on the Roth IRA and provides specific details for your consideration in setting up a new Roth IRA, electing a workplace Roth IRA, or converting your existing IRA to a Roth.

Who should prioritize Roth strategies

Roth strategies are particularly compelling for high‑net‑worth investors who fit one or more of these profiles:

  • You have large traditional IRA/401(k) balances that will generate significant RMDs relative to your actual spending needs.
  • You expect retirement tax brackets to be similar to or higher than your current brackets, especially when you consider a surviving spouse who will later file as single.
  • You anticipate concentrated income events—such as business sales, stock option exercises, or deferred‑compensation payouts—that could coincide with RMDs and elevate your tax bill.
  • You place a high priority on the after‑tax value of wealth transferred to children or grandchildren and want to reduce the tax burden on them.

If your objective is not just to fund retirement but to preserve and transmit wealth efficiently, Roth accounts can be a powerful part of that plan.

The tax challenge for affluent retirees

High‑net‑worth investors often enter retirement with seven‑figure balances in traditional 401(k)s and IRAs. On paper, those balances look impressive. In practice, they represent a joint asset with the government. Every dollar coming out of those accounts is taxed as ordinary income under whatever rules are in place at the time of withdrawal. For affluent households, it is common to discover that retirement tax bills are higher than expected.

RMDs are a central reason for this. Once you reach the age at which RMDs begin, you must withdraw a calculated percentage of your tax‑deferred balance each year, regardless of your actual cash‑flow needs. Large RMDs can easily push your taxable income well above what is required to sustain your lifestyle. That additional income may move you into higher marginal tax brackets, change the taxation of your Social Security benefits, and trigger higher Medicare premiums through income‑based surcharges.

Social Security and Medicare introduce tax‑sensitive thresholds that matter a great deal at higher income levels. As your income rises, up to 85% of your Social Security benefits can become taxable. Medicare uses income brackets to determine whether you pay standard premiums or face surcharges. Crossing one of these lines can add thousands of dollars per year in costs, effectively increasing your marginal tax rate.

There is also a concentration problem. Many sophisticated investors diversify across asset classes and geographies, yet end up with a large share of their net worth confined to tax‑deferred accounts. If Congress raises tax rates or limits deductions, the after‑tax value of those balances can fall quickly. Without assets in different tax “buckets,” you have limited flexibility to adapt.

Roth accounts as a hedge and planning tool

Roth IRAs and Roth options in workplace plans reverse the usual tax timing. Instead of deferring tax until withdrawal, you pay tax now on contributions or converted balances. In exchange, qualified withdrawals are tax‑free in retirement, and Roth IRA assets are not subject to lifetime RMDs for the original owner.

For high‑net‑worth investors, that structure offers several key advantages:

  • It creates a pool of tax‑free capital you can access without increasing adjusted gross income.
  • It reduces your dependence on taxable withdrawals from traditional accounts in years when your income is already high.
  • It provides a partial hedge against future tax‑rate increases by locking in today’s rates on money you convert.

The most important benefit, though, is flexibility. With a mix of taxable, tax‑deferred, and Roth assets, you can decide where to draw from each year to keep your tax bill within a target range. That turns tax planning from something that happens to you into something you actively manage.

Ways to fund Roth accounts

High‑net‑worth investors typically use three primary ways to build Roth balances: direct contributions, plan‑based Roth contributions, and conversions.

Direct Roth IRA contributions are attractive but limited. They are subject to annual limits and phase‑outs at higher incomes. Many high earners find themselves ineligible for direct Roth IRA contributions. In that case, the “backdoor” Roth IRA becomes relevant: you make a non‑deductible contribution to a traditional IRA and then convert that contribution to Roth. Because the contribution itself is after‑tax, only the growth between contribution and conversion is taxable. However, if you already have pre‑tax IRA balances, the conversion may be partially taxable under the pro‑rata rule, so coordination is important.

Workplace Roth accounts, such as Roth 401(k) or Roth 403(b) options, allow you to funnel significant amounts into Roth each year without income‑eligibility limits. You can choose to direct some or all of your salary deferrals into the Roth side of the plan. If you are 50 or older, catch‑up contributions can meaningfully increase your annual Roth funding. Current rules also push many higher‑earning employees’ catch‑up contributions into Roth by default, making Roth accumulation even more accessible. Some plans also allow “mega backdoor Roth” strategies, where you make after‑tax contributions above regular deferral limits and convert those amounts in‑plan or via rollover to a Roth IRA, substantially increasing your Roth capacity.

Roth conversions are the most flexible and potentially powerful tool. You can convert any amount from eligible traditional accounts to a Roth IRA. The converted amount is treated as taxable income in the year of conversion. The core decision is whether paying that tax now, at a known rate, offers a better long‑term result than leaving the money in traditional form and paying whatever tax applies when you or your heirs eventually withdraw it.

Designing a multi‑year conversion strategy

For high‑net‑worth investors, it is rarely optimal to convert everything in one year. Instead, Roth conversions are best approached as a multi‑year strategy integrated with your broader financial plan.

A common framework is “filling the bracket.” You begin by estimating your income for the year from all sources: wages, pensions, portfolio income, and any RMDs. You then identify the top of a tax bracket you are comfortable paying. The amount you convert is calibrated so that your total taxable income, including the conversion, rises to but does not exceed that bracket’s upper limit. In subsequent years, you repeat the process, adjusting for changes in income, tax law, and your goals.

The early retirement years are often an ideal time for this. Once you stop working but before Social Security and RMDs begin, your taxable income may drop substantially. These “tax valleys” are an opportunity to move sizable sums from traditional accounts to Roth at relatively moderate tax rates. By the time RMDs start, you may have shifted enough into Roth to meaningfully reduce required withdrawals and the associated tax burden.

However, conversions have consequences. Large, one‑time conversions can cause more of your Social Security benefits to be taxable in that year. They can also raise your income for purposes of Medicare premium calculations, resulting in higher premiums two years later. A well‑designed plan weighs these interactions and often favors a series of smaller, predictable conversions instead of a single large one.

Whenever possible, paying the tax due on conversions from taxable accounts is more efficient than using the converted funds themselves. Paying tax from outside ensures the full converted amount stays in the Roth environment, where it can grow tax‑free for the rest of your life and, for a time, beyond it when inherited.

Managing Social Security, Medicare, and income thresholds

Roth strategies are also valuable for managing key income thresholds, not just marginal tax brackets. As income rises, both the portion of Social Security that is taxable and the level of Medicare surcharges can climb. At higher asset levels, it is surprisingly easy to cross these thresholds unintentionally.

Because qualified Roth withdrawals are not included in adjusted gross income, they provide a valuable lever when you want to fund a larger expense or adjust your cash flow without triggering additional tax or benefit costs. For example, if you are close to a Medicare income threshold in a given year but want to make a major purchase, gifting, or investment, drawing more from Roth and less from traditional accounts can help you stay below the line and avoid permanent increases in your premiums.

Over a multi‑decade retirement, consistently managing around these thresholds can meaningfully reduce total taxes and benefit costs, improving the net return on your portfolio.

Roths in estate and legacy planning

For high‑net‑worth families, Roth accounts often shine brightest in estate planning. Under current rules, most non‑spouse beneficiaries must fully distribute inherited IRA and plan balances within 10 years of inheriting them. When those accounts are traditional, the distributions are taxable income for the heirs, frequently landing on top of their peak career earnings. This can push children or other beneficiaries into higher brackets and reduce the net value of their inheritance.

Inherited Roth IRAs are subject to the same 10‑year distribution window, but withdrawals are generally tax‑free. Heirs can leave assets invested for the full 10 years and then take a lump sum without an income tax bill. The result is a powerful combination of additional tax‑free compounding and flexible timing. For families that do not expect to spend all of their retirement assets, deliberately shifting some wealth into Roth can be a way of prepaying tax at today’s rates so that heirs receive cleaner, tax‑efficient assets.

Roth accounts also coordinate well with other estate‑planning tools. Traditional IRAs might be directed to charitable organizations, which pay no income tax, while Roth and taxable accounts go to family. Trusts can be structured to receive Roth assets, using tax‑free distributions to support a surviving spouse or children with fewer tax complications.

Closing Observations and practical guidelines

For high‑net‑worth investors, the key questions around Roths are “how much, over what time frame, and in service of which goals?” A practical guideline usually includes:

  • Clarifying priorities: is your main goal minimizing lifetime tax, maximizing the after‑tax legacy to heirs, or maintaining maximum flexibility under uncertain future tax rules?
  • Projecting your income, RMDs, Social Security, and Medicare premiums under a “no Roth” scenario so you understand the baseline.
  • Identifying low‑income years and available room within preferred tax brackets that can be used for measured Roth conversions.
  • Setting a target allocation across taxable, tax‑deferred, and Roth accounts that supports your spending, risk tolerance, and estate objectives.
  • Implementing a multi‑year schedule for contributions and conversions, and revisiting it regularly in light of market performance, changing tax law, and personal life events.

In sum,  Roth accounts are not just another type of retirement account. They are a structural tool for shaping how, and when, the tax system interacts with your wealth—during your lifetime and beyond.