A large traditional IRA can be one of the most powerful wealth-building vehicles available. It can also become one of the most tax-inefficient assets you own — and one of the most expensive things you leave your heirs — if it's never managed with a long-term tax strategy in mind.
The strategies that reduce this burden aren't secrets. They're just underused, often because they require coordinated planning across investment management, tax strategy, and estate planning that doesn't always happen when those three relationships operate in separate silos. Here's what the families who get this right tend to do differently.
Roth Conversions: The Most Powerful Tool in the Toolkit
Converting a traditional IRA to a Roth IRA means paying income tax today in exchange for tax-free growth and tax-free distributions going forward. Done in the right years, at the right amounts, this is one of the highest-return planning moves available to affluent retirees — not because the math always obviously favors it, but because of the flexibility and optionality it creates over a multi-decade retirement.
The best window typically sits in the years between retirement and age 73, when required minimum distributions begin. In that gap, ordinary income often drops significantly — creating the opportunity to fill lower tax brackets with conversions at rates that may be far lower than what your heirs would pay on inherited IRA distributions, or what you'd pay once RMDs stack on top of Social Security and investment income.
The modeling needs to account for Social Security taxability, Medicare premium surcharges, state taxes, and how the conversion interacts with other income in the same year. When those factors are incorporated, the conversion decisions often look quite different than a back-of-the-envelope calculation would suggest. If you haven't already looked carefully at what waiting actually costs, this piece on the hidden cost of waiting on a Roth conversion walks through the real numbers.
Qualified Charitable Distributions
QCDs allow people aged 70½ and older to transfer money directly from a traditional IRA to a qualified charity — up to $108,000 per year in 2025 — without that distribution counting as taxable income. For those who are charitably inclined and would otherwise be donating post-tax dollars, this is a straightforward and often significant improvement.
For those subject to required minimum distributions beginning at age 73, QCDs can satisfy all or part of the RMD obligation. Done correctly, this means a portion of the IRA is distributed without ever appearing on the tax return as income — which has downstream effects on Social Security taxation, IRMAA exposure, and state tax liability. For a deeper look at how charitable giving and tax strategy work together, this overview of maximizing philanthropy while minimizing taxes covers the full range of tools available.
Timing Windows and Bracket Management
The decision about when to take income from an IRA isn't just about what you need — it's about what bracket you're in. Years where other income is lower than usual create opportunities for additional conversions or distributions at favorable rates. Years where a major capital gain is already booked, or where a business sale has pushed income unusually high, may warrant pulling back.
This is the kind of year-end planning that benefits from looking twelve to eighteen months ahead, not thirty days. Decisions made in December are constrained by what's already happened in the prior eleven months. A coordinated look at your full income picture — investment income, Social Security, RMDs, capital gains, Roth conversions — before the year closes is where a meaningful amount of the long-term tax savings actually gets captured.
Your tax return tells this story more clearly than most people realize. This piece on what your tax return reveals to a financial advisor explains what a coordinated review of that document can surface — and why most people miss it.
Charitable Giving Strategies for Larger IRAs
For families with significant philanthropic intent, a charitable remainder trust or a donor-advised fund can be integrated with IRA strategy in ways that reduce taxes, increase the amount going to charity, and in some cases improve what heirs ultimately receive.
Contributing appreciated stock to a donor-advised fund, for example, avoids capital gains on the appreciation, generates an income tax deduction, and funds charitable giving — often more efficiently than writing a check from a bank account. At larger asset levels, a charitable remainder trust can convert a large IRA or appreciated asset into a lifetime income stream while directing the remainder to charity, in a structure that often reduces estate exposure at the same time.
These aren't strategies reserved for the ultra-wealthy. They're available and often appropriate for families in the $2M–$10M range who have both charitable intent and tax efficiency as goals. For a broader look at how estate planning and tax strategy intersect at this level, this overview of estate planning for $5M portfolios covers the decisions that matter most.
Beneficiary Considerations — Often the Most Overlooked Piece
Under current rules following the SECURE Act, most non-spouse beneficiaries who inherit a traditional IRA are required to distribute the full balance within 10 years of the original owner's death. If the inheriting child is in their peak earning years, those distributions layer on top of their own income — potentially at the highest marginal rates available.
By contrast, Roth IRA assets inherited by a beneficiary grow tax-free and distribute tax-free, regardless of the beneficiary's bracket. For families where the goal is to maximize the after-tax wealth transferred to the next generation, the IRA strategy and the inheritance strategy need to be designed together — not as separate exercises.
This is one of the areas where the stakes are highest and the planning is most often fragmented. This guide to inheriting a $3M IRA is worth sharing with adult children who may one day be in this position — and understanding yourself before your estate plan is finalized.
The Integration Piece
None of these strategies works optimally in isolation. A Roth conversion decision affects IRMAA. A QCD strategy affects the Social Security taxable income calculation. A charitable giving decision affects the estate. These pieces are interconnected in ways that reward coordinated planning and quietly punish compartmentalized planning.
The families who tend to get this right share one characteristic: their financial advisor, CPA, and estate attorney are working from the same picture — and the planning is happening proactively, before the year closes and before the decisions can no longer be changed. For a comprehensive look at how tax-efficient wealth management works across all of these levers simultaneously, the Wealthy Investor Playbook for $3M–$5M+ portfolios is one of the most useful resources on our site.
If you have a large IRA and want to understand what a coordinated reduction strategy would look like for your specific situation, we'd welcome the conversation.
A large IRA doesn't have to mean a large tax bill — for you or your heirs. We work with affluent families throughout the St. Louis area to build coordinated Roth conversion, charitable giving, and beneficiary strategies that reduce the long-term tax burden on large retirement accounts.
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John Wahl is a CFP® and ChFC®, co-founder of One Bridge Wealth Management, and was named to the Forbes 2025 Best-In-State Next-Gen Wealth Advisors list. 2025 Forbes Top Next-Gen Wealth Advisors, created by SHOOK Research. Presented in Aug 2025; based on 03/31/25 data. Advisors pay a fee to hold out marketing materials . Not indicative of advisor’s future performance. Your experience may vary. One Bridge is a fee-based independent wealth advisory practice serving high-net-worth families in the St. Louis area. One Bridge Wealth Management acts as a fiduciary when managing assets. This content is for informational purposes only and does not constitute personalized tax or investment advice. Please consult a qualified tax professional regarding your specific situation.