Understanding Required Minimum Distributions
Required minimum distributions (RMDs) are mandatory withdrawals you must take from certain retirement accounts once you reach a specific age. The IRS requires these distributions to ensure that tax-advantaged retirement savings don't remain untouched indefinitely.
Think of RMDs as the government's way of saying, "You've enjoyed tax benefits long enough—now it's time to pay taxes on this money." Understanding RMD rules is crucial for retirement planning, as failing to comply can result in hefty penalties.
Which Accounts Require RMDs?
RMDs apply to most employer-sponsored retirement plans and traditional IRAs:
Accounts subject to RMDs:
- Traditional IRAs
- SEP-IRAs
- SIMPLE IRAs
- 401(k) plans
- 403(b) plans
- 457(b) plans
Accounts exempt from RMDs:
- Roth IRAs (during the owner's lifetime)
- Roth 401(k)s (though employer plans may require distributions)
The key distinction is whether you received a tax deduction when contributing. If you did, you'll likely face RMDs later.
When Do RMDs Begin?
For most people, RMDs begin at age 73. This age increased from 70½ due to the SECURE Act and subsequent legislation. You must take your first RMD by April 1st of the year following the year you turn 73.
Example: If you turned 73 in 2025, you must take your first RMD by April 1, 2026. However, if you wait until the deadline, you'll need to take two distributions in 2026—your 2025 RMD and your 2026 RMD.
Special rule for 401(k)s: If you're still working at age 73 and don't own 5% or more of the company, you can delay RMDs from your current employer's 401(k) until you retire.
How Are RMDs Calculated?
RMD calculations use a simple formula:
RMD = Account Balance ÷ Life Expectancy Factor
The IRS provides life expectancy tables that determine your factor based on your age. The most commonly used is the Uniform Lifetime Table.
Calculation example:
- Account balance on December 31, 2025: $500,000
- Age 74 life expectancy factor: 24.5
- Required RMD for 2026: $500,000 ÷ 24.5 = $20,408
Important notes:
- Use the account balance from December 31st of the previous year
- Each account requires separate calculations
- You can aggregate RMDs from similar account types (like multiple traditional IRAs)
RMD Strategies and Considerations
Timing your distributions: While December 31st is the annual deadline, consider spreading distributions throughout the year to:
- Avoid large tax bills
- Potentially benefit from dollar-cost averaging if reinvesting
- Maintain better cash flow management
Tax planning opportunities: RMDs are taxed as ordinary income, so consider:
- Taking distributions in lower-income years
- Coordinating with other income sources
- Using qualified charitable distributions (QCDs) if you're 70½ or older
Qualified charitable distributions: If you're at least 70½, you can donate up to $100,000 annually directly from your IRA to qualified charities. This counts toward your RMD but isn't included in your taxable income.
Common RMD Mistakes to Avoid
Missing the deadline: The penalty for failing to take your full RMD is severe—25% of the amount you should have withdrawn. Recent legislation reduced this from 50%, but it's still substantial.
Incorrect calculations: Double-check your math or work with a financial professional. Many custodians will calculate RMDs for you, but the responsibility remains yours.
Forgetting inherited accounts: Inherited retirement accounts have their own RMD rules, often requiring distributions within 10 years regardless of your age.
Planning Ahead
Start planning for RMDs well before age 73:
- Track your accounts: Maintain records of all retirement accounts and their custodians
- Consider Roth conversions: Converting traditional IRA funds to Roth IRAs before age 73 can reduce future RMDs
- Understand your tax situation: Project how RMDs will affect your overall tax picture
- Review beneficiary designations: Ensure your accounts have proper beneficiaries to avoid complications
Required minimum distributions are a natural part of retirement planning. By understanding the rules and planning ahead, you can manage RMDs effectively while minimizing their tax impact and ensuring compliance with IRS requirements.

