For anyone with significant savings in tax-deferred accounts, required minimum distributions (RMDs) are an inevitable part of retirement. For people who have not planned around them in advance, they can arrive with more financial impact than expected. Managing RMDs effectively is not about avoiding them entirely. It is about understanding how they work, how they interact with the rest of your retirement income plan, and what steps you can take before they begin to reduce their disruptive potential.

RMDs are mandatory annual withdrawals that the IRS requires from tax-deferred retirement accounts beginning at age 73. The amount of each RMD is calculated based on the account balance at the end of the prior year and a life expectancy factor from IRS tables. The larger the account balance, the larger the RMD, and that amount is added to taxable income in the year it is taken.

Why RMDs Can Catch People Off Guard

The most common reason RMDs create problems in retirement is that they are not factored into the income plan until they begin. Someone who has been drawing a comfortable and relatively predictable income from their accounts may suddenly find that their taxable income jumps significantly once RMDs kick in, even if their actual spending has not changed.

That jump in taxable income can set off a chain of secondary effects. Higher income can push the retiree into a higher federal tax bracket, increase the taxable portion of Social Security benefits, and trigger IRMAA surcharges on Medicare Part B and Part D premiums. For retirees who were not anticipating these interactions, the combined effect can feel like a significant and unwelcome disruption to a plan that seemed to be working well.

The RMD Calculation and What It Means in Practice

For retirees with multiple tax-deferred accounts, RMDs must be calculated separately for each account, though the total can be withdrawn from one or more of the accounts. Roth IRAs are not subject to RMDs during the account owner’s lifetime, which is one of the reasons Roth accounts are a useful component of a diversified retirement account structure.

How RMDs Interact With the Rest of Your Income Plan

Managing required minimum distributions is not just about taking the right amount out of the right accounts each year. It is about understanding how RMD income interacts with your other income sources and planning around those interactions deliberately.

Social Security taxation is one of the most significant interaction points. As noted in earlier discussions of retirement tax planning, up to 85 percent of Social Security benefits can be subject to federal income tax depending on combined income levels. RMD income counts toward that combined income calculation, which means large RMDs can increase the taxable portion of Social Security benefits in ways that compound the overall tax impact.

Medicare premium surcharges are another interaction worth planning around. IRMAA surcharges are assessed based on income from two years prior, so a large RMD in one year can affect Medicare costs two years later. For retirees on a fixed income, an unexpected premium increase can create real cash flow pressure.

What You Can Do Before RMDs Begin

The most effective time to address the impact of RMDs is in the years before they begin. For people who retire before age 73, there is a planning window that can be used to reduce the balance subject to future RMDs and manage the tax exposure they generate. Here are several approaches worth considering:

• Roth conversions: Converting portions of a traditional IRA to a Roth account during the pre-RMD years reduces the balance subject to future mandatory withdrawals. The converted amount is taxed in the year of conversion, but the resulting Roth balance grows tax-free and is not subject to RMDs.
• Early distributions: Drawing from tax-deferred accounts in the years before RMDs begin, even when the income is not immediately needed for expenses, can reduce the future RMD obligation and keep taxable income at a more manageable level during the RMD years.
• Qualified charitable distributions: For retirees who are charitably inclined and over age 70 and a half, qualified charitable distributions allow IRA funds to be transferred directly to a qualified charity. The distribution counts toward the RMD obligation but is not included in taxable income, which can meaningfully reduce the tax impact of required withdrawals.

Building RMDs Into Your Income Plan

Rather than treating RMDs as an interruption to an existing income plan, the most practical approach is to build them into the income plan from the start. That means projecting future RMD amounts based on current account balances and expected growth, understanding how those amounts will interact with Social Security income and other sources, and designing a withdrawal strategy that accounts for the full income picture across all phases of retirement.

Managing required minimum distributions as part of a coordinated income and tax strategy, rather than as a separate obligation to be dealt with each year, gives you a much cleaner and more predictable retirement income picture.

Staying on Top of RMD Rules

It is also worth noting that RMD rules have changed in recent years and may continue to evolve. Staying current with RMD rules, and understanding how they apply to your specific accounts, is an important part of managing them effectively over time.

If you have significant balances in tax-deferred accounts and want to understand how RMDs will affect your retirement income plan, Proper Retirement is here to help. Contact us today to schedule a conversation about your account structure and how to build a distribution strategy that accounts for RMDs from the start.