If you’re approaching your early 70s, you’ve likely heard about Required Minimum Distributions (RMDs). Most people understand that they must begin withdrawing money from certain retirement accounts once they reach the required age—but many don’t realize those withdrawals can affect much more than just their annual tax bill.
An RMD isn’t simply a required withdrawal. It can influence your taxes, Medicare premiums, Social Security benefits, investment strategy, and even the amount you leave behind for your loved ones.
Understanding how RMDs fit into your overall retirement plan can help you avoid unnecessary surprises and make more informed financial decisions.
What Is a Required Minimum Distribution?
A Required Minimum Distribution (RMD) is the minimum amount the IRS requires you to withdraw each year from most tax-deferred retirement accounts after reaching the required beginning age.
Accounts commonly subject to RMDs include:
- Traditional IRAs
- SEP IRAs
- SIMPLE IRAs
- Most 401(k), 403(b), and other employer-sponsored retirement plans
The purpose is straightforward. These accounts have allowed your investments to grow tax-deferred for years, and eventually the IRS wants to begin collecting income taxes on those savings.
Each year’s required withdrawal is calculated using:
- Your account balance as of December 31 of the previous year
- IRS life expectancy tables
Because both your account balance and life expectancy factor change over time, your RMD amount will likely be different every year.
The Hidden Costs Many Retirees Don’t Expect
Many retirees assume their only concern is paying income tax on the distribution. Unfortunately, that’s often just the beginning.
An RMD increases your taxable income, which can create several ripple effects throughout your retirement plan.
Higher Income Taxes
Your RMD is generally taxed as ordinary income. Depending on the size of the withdrawal and your other sources of retirement income, it may push you into a higher federal tax bracket.
Even if your tax bracket doesn’t change, adding thousands of dollars of taxable income each year can increase your overall tax bill.
Medicare Premium Increases
One of the biggest surprises for many retirees is that higher income can increase Medicare Part B and Part D premiums.
Medicare uses a system called Income-Related Monthly Adjustment Amount (IRMAA). If your income exceeds certain thresholds, your premiums may increase—sometimes substantially.
That means an RMD can end up costing more than the taxes you pay on the withdrawal itself.
More of Your Social Security May Become Taxable
Your RMD also becomes part of the income calculation used to determine how much of your Social Security benefits are taxable.
For some retirees, this means a larger portion of their Social Security income becomes subject to federal income tax.
Effects on Other Tax Benefits
Higher taxable income may also affect certain deductions, credits, or tax planning opportunities available in retirement.
The key takeaway is simple:
It’s often not the RMD itself that’s expensive—it’s everything else the additional income can affect.
You Have to Withdraw It—But You Don’t Have to Spend It
One of the biggest misconceptions about RMDs is that the money has to be spent once it’s withdrawn.
That’s simply not true.
After satisfying your annual RMD requirement, you have several options depending on your financial goals.
You might choose to:
- Reinvest the funds into a taxable brokerage account
- Build or replenish cash reserves
- Fund travel or other retirement experiences
- Help children or grandchildren financially
- Make Qualified Charitable Distributions (QCDs), if eligible
Every retiree’s situation is different, which is why your RMD should fit into your overall retirement income strategy—not simply become another annual task to check off your list.
Common RMD Mistakes to Avoid
Even retirees who understand the rules can make costly mistakes.
Some of the most common include:
Waiting Until the End of the Year
Many people delay taking their RMD until December. While this isn’t always a problem, waiting until year-end leaves little room to adjust your tax strategy if circumstances change.
Planning earlier in the year gives you more flexibility.
Forgetting About Old Retirement Accounts
It’s surprisingly common for retirees to overlook an old IRA or employer retirement plan.
Missing an account could mean failing to satisfy your total RMD obligation.
Taking the Wrong Amount
Because RMD calculations change annually, it’s important to verify the correct distribution amount each year.
Missing Inherited IRA Rules
Inherited retirement accounts often follow different RMD rules than your own retirement accounts.
Understanding those requirements is essential to avoid unnecessary complications.
Ignoring Tax Withholding
Many retirees forget they can elect to have federal (and sometimes state) taxes withheld from their RMD.
Planning withholding in advance may help avoid an unexpected tax bill later.
The Best Time to Plan for RMDs Is Before They Begin
One of the most effective RMD strategies starts years before your first required withdrawal.
The years leading up to age 73 may provide valuable planning opportunities, including:
- Roth conversions during lower-income years
- Strategic withdrawals before RMDs begin
- Coordinating Social Security claiming strategies
- Building tax diversification across different account types
- Managing future tax brackets
These strategies aren’t appropriate for everyone, but proactive planning may help reduce future tax surprises and provide greater flexibility throughout retirement.
Why RMD Planning Should Be Part of Your Retirement Strategy
Rather than viewing RMDs as a yearly obligation, think of them as one piece of a much larger retirement income puzzle.
A coordinated strategy considers:
- Taxes
- Investment withdrawals
- Medicare costs
- Social Security income
- Estate planning goals
- Long-term retirement income needs
Reviewing these areas together can help you make more informed decisions before your RMDs begin.
Key Takeaways
Required Minimum Distributions are a normal part of retirement for many Americans, but they shouldn’t catch you off guard.
Remember to:
- Know when your RMDs begin.
- Understand how they may affect taxes, Medicare, and Social Security.
- Plan throughout the year instead of waiting until December.
- Decide how your distribution will fit into your retirement income strategy.
- Begin planning several years before your first RMD.
The more proactive your planning, the more options you’ll likely have.
Ready to Plan Ahead?
If you’re within five to ten years of taking your first Required Minimum Distribution—or you’ve already started taking RMDs—it may be time to review how they fit into your broader retirement income strategy.
At Buska Retirement Solutions, we help individuals build coordinated retirement income plans that consider taxes, Medicare, Social Security, investments, and long-term financial goals.
Schedule a conversation with our team to discuss how proactive RMD planning could help you prepare for retirement with greater confidence.