Understanding Required Minimum Distributions (RMDs)
For many retirees, Required Minimum Distributions (RMDs) are an important part of retirement planning.
Traditional IRAs and many employer-sponsored retirement plans can offer tax advantages while assets are growing. But those tax benefits are generally temporary. At a certain age, the IRS requires many account owners to begin taking minimum withdrawals each year from certain retirement accounts. (irs.gov)
Understanding how RMDs work can help retirees better prepare for future cash-flow needs, evaluate potential tax consequences, and avoid unnecessary penalties.
What Is a Required Minimum Distribution?
A Required Minimum Distribution, or RMD, is the minimum amount that must generally be withdrawn each year from certain tax-deferred retirement accounts once the account owner reaches the applicable required beginning age. (irs.gov)
RMD rules commonly apply to:
Traditional IRAs
SEP IRAs
SIMPLE IRAs
401(k) plans
403(b) plans
Other qualified employer-sponsored retirement plans (irs.gov)
These rules exist because those accounts often received tax-deferred treatment during the accumulation years, and the government eventually requires distributions to begin. (irs.gov)
When Do RMDs Begin?
For many individuals, RMDs begin at age 73.
Under current IRS rules:
Individuals born from 1951 through 1959 generally begin RMDs at age 73
Individuals born in 1960 or later generally begin RMDs at age 75 (irs.gov)
The first RMD is generally due by April 1 of the year after the year the account owner reaches their applicable RMD age. After that, annual RMDs are generally due by December 31 each year. (irs.gov)
That timing can matter. If the first RMD is delayed until the following year, the account owner may have to take two taxable distributions in the same calendar year, which may increase taxable income for that year. (irs.gov)
How Are RMDs Calculated?
RMDs are generally calculated using:
The account balance as of December 31 of the previous year
An applicable IRS life expectancy factor (irs.gov)
In simple terms, the prior year-end account balance is divided by the applicable IRS factor.
For example:
If an account balance is $500,000 and the applicable life expectancy factor is 26.5, the RMD would be approximately:
$500,000 ÷ 26.5 = $18,868
Because the life expectancy factor generally declines over time, required withdrawal amounts often increase as the account owner ages. (irs.gov)
If Someone Has Multiple Retirement Accounts, Do the Rules Change?
This is an area that often causes confusion.
The IRS permits some RMDs to be calculated separately but withdrawn in aggregate from similar account types. For example, if someone owns multiple traditional IRAs, they generally calculate the RMD for each IRA, then may withdraw the total from one or more of those IRAs. The IRS also allows aggregation for multiple 403(b) accounts. However, employer plan RMDs, such as from 401(k) plans, generally must be taken separately from each plan. (irs.gov)
Because account-type rules differ, many retirees benefit from reviewing each account category carefully before taking distributions.
Which Accounts Are Not Subject to Lifetime RMDs?
Not all retirement accounts require distributions during the original owner’s lifetime.
The IRS states that Roth IRAs are not subject to RMDs during the original owner’s lifetime. The IRS also notes that designated Roth accounts are not subject to lifetime RMDs while the owner is alive. Beneficiaries may still be subject to separate distribution requirements after inheritance. (irs.gov)
That distinction is one reason Roth assets are often discussed in broader retirement income and tax-planning conversations.
Can Someone Still Working Delay RMDs?
In some cases, yes.
For certain employer-sponsored retirement plans, an individual who is still working may be able to delay RMDs from their current employer’s plan until the year they retire. However, the IRS says this exception generally does not apply if the person is a 5% owner of the business sponsoring the plan. It also generally does not apply to traditional IRAs. (irs.gov)
Plan provisions matter, so retirees and workers should review the details of their specific plan before assuming an RMD can be postponed.
Why Do RMDs Matter for Tax Planning?
Withdrawals from tax-deferred retirement accounts are generally taxed as ordinary income, except to the extent a distribution is otherwise tax-free. (irs.gov)
As a result, RMDs can affect several parts of a retiree’s financial picture, including:
Taxable income
Marginal tax bracket
Medicare premium thresholds
Taxation of Social Security benefits
For that reason, RMDs are often reviewed as part of a broader retirement income strategy rather than as a stand-alone year-end requirement.
What Happens If an RMD Is Missed?
Failing to take the full required distribution can trigger an IRS excise tax.
The IRS states the penalty is generally 25% of the amount not withdrawn, and it may be reduced to 10% if the shortfall is corrected within the applicable correction window. The IRS also instructs taxpayers to generally report the issue using Form 5329. (irs.gov)
Because of the potential cost of a missed distribution, many retirees review RMD obligations carefully each year.
A Common Related Topic: Qualified Charitable Distributions
For IRA owners who are charitably inclined, Qualified Charitable Distributions (QCDs) are often part of the broader RMD conversation.
The IRS notes that QCD eligibility is based on reaching age 70½, even though the age for beginning RMDs may be later. While not appropriate for everyone, this is one reason charitable giving and distribution planning are sometimes discussed together in retirement. (irs.gov)
Planning Considerations Before RMD Age
Although RMDs generally cannot be avoided once they begin, some individuals review planning strategies earlier in retirement that may influence future distribution levels and tax outcomes.
Examples may include:
Roth conversions before RMD age
Tax diversification across account types
Coordinating withdrawals from taxable, tax-deferred, and tax-free accounts
Reviewing charitable giving strategies where appropriate
These approaches involve trade-offs and are not appropriate for everyone. They are generally best evaluated in light of an individual’s full financial, tax, and estate planning picture.
The Bottom Line
Required Minimum Distributions are an important part of the rules governing many tax-deferred retirement accounts.
Understanding when they begin, how they are calculated, and how they may affect taxable income can help retirees better understand an important retirement rule and prepare more thoughtfully for future withdrawals.
Because RMDs can influence retirement cash flow and tax planning, many investors choose to review their approach well before distributions become mandatory.
Disclosure: This material is provided for informational and educational purposes only and should not be construed as investment, tax, or legal advice. Individual circumstances vary, and readers should consult with appropriate tax, legal, and financial professionals regarding their specific situation. All investments involve risk, including the possible loss of principal.