Inherited IRA 10-Year Rule: Distribution Strategies for Financial Advisors

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Your client’s mother passed away in January 2026, leaving a $500,000
traditional IRA. Your client is 45, married filing jointly, earning
$130,000 per year. The custodian’s online calculator shows the minimum
required distributions and a final lump sum in year 10.

That calculator answers the wrong question.

The minimum distribution schedule satisfies the IRS. It does not
minimize your client’s tax bill. Left to the default approach, roughly
$420,000 will hit as ordinary income in 2035, pushing your client from
the 22% bracket into the 35% bracket for that year alone. The federal
tax bill on that single distribution: approximately $109,000.

There is a better path. The question isn’t “what does the IRS
require?” It’s “what distribution pattern produces the lowest total tax
bill across all ten years?”

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What Is the 10-Year
Rule for Inherited IRAs?

The 10-year rule is the default distribution requirement for most
inherited IRAs under the SECURE Act (2019) and SECURE Act 2.0 (2022). It
requires that the entire inherited IRA balance be distributed by
December 31 of the tenth year after the original account owner’s
death.

Before the SECURE Act, non-spouse beneficiaries could “stretch”
distributions over their own life expectancy. A 45-year-old inheriting
an IRA could spread distributions across nearly four decades. The SECURE
Act compressed that timeline to ten years for most beneficiaries,
dramatically increasing the tax planning stakes.

The critical nuance: For deaths in 2020 or later
where the original owner had already begun required minimum
distributions (was past their required beginning date), the IRS requires
annual distributions in years 1 through 9 in addition to full depletion
by year 10. If the original owner had not yet begun RMDs, annual
distributions in years 1 through 9 are not required. Only the year-10
deadline applies.

This distinction matters enormously for strategy. If annual
distributions are not required, the beneficiary has full flexibility to
choose when and how much to withdraw each year, as long as the account
is empty by the deadline.

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Who Does the 10-Year Rule
Apply To?

Not every beneficiary is subject to the 10-year clock. The IRS
distinguishes between two categories.

Eligible Designated
Beneficiaries (EDBs)

These beneficiaries can still use the stretch (life expectancy)
method:

• Surviving spouses (can also roll the IRA into their
  own)
• Minor children of the deceased (until they reach
  the age of majority, then the 10-year clock starts)
• Disabled individuals (as defined under IRC Section
  72(m)(7))
• Chronically ill individuals
• Beneficiaries not more than 10 years younger than
  the deceased

Non-Eligible
Designated Beneficiaries (NEDBs)

Everyone else, including adult children, siblings, friends, and most
trust beneficiaries. This is the group subject to the 10-year rule. It
is also, by far, the most common scenario you will encounter in
practice. An adult child inheriting a parent’s IRA is the textbook
case.

Advisor Takeaway: The first step in any inherited
IRA engagement is classifying the beneficiary. The entire distribution
strategy depends on whether the 10-year rule applies. Get this wrong and
the planning is moot.

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Three Distribution
Strategies Compared

Consider the scenario: $500,000 inherited traditional IRA.
Beneficiary is 45, married filing jointly, with $130,000 in annual W-2
income. The beneficiary’s income is stable across all ten years. Federal
tax rates reflect 2026 brackets.

Strategy
1: Level Distributions ($50,000/year for 10 years)

The beneficiary takes $50,000 each year, distributing the account
evenly.

• Annual taxable income: $180,000 ($130,000 wages +
  $50,000 distribution)
• Federal bracket: Stays within the 22% bracket (2026
  MFJ bracket: $96,951 to $206,700)
• Approximate federal tax on each distribution:
  $11,000
• Total federal tax on all distributions over 10
  years: ~$110,000

This approach is predictable. The beneficiary knows exactly what to
expect each year. No bracket surprises, no year-10 spike. For a client
with stable income, it is often the simplest path.

Strategy
2: Front-Loaded (Larger Distributions in Early Years)

The beneficiary takes $80,000 per year for years 1 through 4 and
$26,667 per year for years 5 through 10.

This strategy makes sense when the beneficiary has temporarily lower
income in the early years, such as a career change, sabbatical, early
retirement, or gap between jobs.

Example with lower early income: Suppose the
beneficiary earns $70,000 in years 1 through 4 (reduced hours after
inheriting) and $130,000 in years 5 through 10.

• Years 1-4 taxable income: $150,000 ($70,000 +
  $80,000). Federal bracket: 22%.
• Years 5-10 taxable income: $156,667 ($130,000 +
  $26,667). Federal bracket: 22%.
• Total federal tax on all distributions over 10
  years: ~$100,000

By front-loading distributions into years when other income is lower,
the beneficiary saves approximately $10,000 compared to level
distributions in this scenario. The savings grow if the income gap
between early and later years is wider.

Strategy
3: Back-Loaded (Minimum Early, Large Year-10 Distribution)

The beneficiary takes only $8,000 per year in years 1 through 9 and
takes the remaining $428,000 in year 10. This is the default behavior
when a beneficiary does nothing (or the minimum required).

• Years 1-9 taxable income: $138,000 ($130,000 +
  $8,000). Federal bracket: 22%.
• Year 10 taxable income: $558,000 ($130,000 +
  $428,000). Federal bracket: 35%.
• Year 10 federal tax on $428,000 distribution:
  ~$112,000
• Total tax on all distributions years 1-9:
  ~$15,800
• Total federal tax on all distributions over 10
  years: ~$128,000

That is roughly $18,000 more in federal taxes than level
distributions. The year-10 distribution alone pushes the beneficiary
through the 24%, 32%, and into the 35% bracket. For higher-income
beneficiaries, year 10 can reach the 37% bracket.

Advisor Takeaway: The back-loaded approach is the
most common default and the worst outcome in almost every scenario where
the beneficiary has meaningful other income. The “year-10 tax bomb” is
not a hypothetical. It is the mathematical result of concentrating
$400,000+ of ordinary income into a single tax year.

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The
Year-10 Tax Bomb: Why It Happens and Why Advisors Miss It

The year-10 problem is structural. Most beneficiaries who inherit an
IRA do not seek planning advice immediately. They receive paperwork from
the custodian, see a minimum distribution schedule (or no required
distributions at all in years 1-9), and assume they can deal with it
later.

By year 7 or 8, the remaining balance has grown. A $500,000 IRA
earning approximately 3% annual growth (net of fees and early-year
minimum distributions) reaches roughly $670,000 by year 10. That entire
amount hits as ordinary income in a single year.

Three factors make this worse:

1. The balance grows. Deferral means a larger balance
   in year 10, not the original $500,000. Every year of deferral increases
   the problem.
2. Bracket stacking. The distribution stacks on top of
   all other income. A beneficiary earning $200,000 with a $500,000 year-10
   distribution has $700,000 in taxable income that year, reaching the 37%
   bracket.
3. Cascading effects. A $500,000+ income spike can
   trigger Net Investment Income Tax (3.8% on income above $250,000 for
   MFJ), higher state taxes, loss of deduction phase-outs, and higher
   capital gains rates on other investments sold that year.

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How to Optimize:
The Bracket-Filling Approach

The optimal inherited IRA distribution strategy is, at its core, a
bracket-filling exercise.

Step 1: Project the beneficiary’s income for each of the ten
years. Include wages, self-employment income, investment
income, Social Security (if applicable), pension income, and any other
sources.

Step 2: Identify the target bracket ceiling. For
most beneficiaries, the goal is to keep total income within the 22% or
24% federal bracket across all ten years. The 2026 brackets for married
filing jointly:

Bracket	Income Range (MFJ, 2026)
10%	$0 to $24,150
12%	$24,151 to $96,950
22%	$96,951 to $206,700
24%	$206,701 to $394,600
32%	$394,601 to $501,050
35%	$501,051 to $751,600
37%	$751,601+

Step 3: Calculate the distribution amount that fills the
bracket. If the beneficiary earns $130,000 and you target the
top of the 22% bracket ($206,700), the distribution should be
approximately $76,700 per year (after accounting for the standard
deduction of $30,000).

Step 4: Adjust for changing income. If the
beneficiary plans to retire in year 6, their earned income drops. Years
6 through 10 can absorb larger distributions at lower brackets.
Front-load less in years 1 through 5, take more in years 6 through
10.

Step 5: Account for state taxes. In high-tax states
like California (13.3% top rate) or New York (10.9% top rate), the
combined federal and state impact of bracket-jumping is even more
severe. A level distribution strategy that keeps the beneficiary in the
22% federal bracket and a moderate state bracket can save 15% or more
compared to a year-10 lump sum when combined taxes are considered.

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Case Study: $500,000
Inherited IRA, Optimized

Client profile: Sarah, age 48. Married filing
jointly. Current W-2 income: $145,000. Spouse earns $65,000. Combined
household income: $210,000. Lives in New Jersey (top state rate:
10.75%). Standard deduction: $30,000. Taxable income before inherited
IRA distributions: $180,000.

Without planning (back-loaded): Sarah takes nothing
for 9 years. The IRA grows to approximately $670,000 by year 10
(assuming 3.5% growth net of any required annual distributions).

• Year 10 taxable income: $180,000 + $670,000 = $850,000
• Federal taxes on the $670,000: ~$207,000 (blended rate through the
  37% bracket)
• NJ state taxes on additional income: ~$64,000
• Combined tax cost: ~$271,000

With planning (bracket-filling, level approach):
Sarah takes $50,000 per year for 10 years. Some growth occurs on the
declining balance.

• Annual taxable income: $230,000 (staying in the 24% bracket)
• Federal tax on each $50,000 distribution: ~$12,000
• NJ state tax on additional income: ~$4,500
• Combined annual tax cost: ~$16,500
• Total over 10 years: ~$165,000

Tax savings from planning: approximately
$106,000.

That $106,000 is the value of the advice. It is not a theoretical
projection. It is the difference between two distribution schedules
applied to the same inherited account, calculated using current tax
law.

Advisor Takeaway: The inherited IRA planning
conversation should happen within the first 60 days of inheritance.
Every year of inaction compounds the problem by growing the balance and
compressing the remaining distribution window.

A Third Scenario:
High-Income Beneficiary

Client profile: Mark, age 52. Single filer. W-2
income: $200,000. Lives in California (top state rate: 13.3%). Inherited
$500,000 traditional IRA from his father. Standard deduction: $15,000.
Taxable income before distributions: $185,000 (in the 24% bracket, which
runs from $103,350 to $197,300 for single filers in 2026).

Mark has no low-income years ahead. With $185,000 in taxable income,
he sits near the top of the 24% bracket. Any inherited IRA distribution
stacks on top.

Level approach ($50,000/year): Taxable income:
$235,000 ($185,000 + $50,000). Mark crosses the 24% ceiling ($197,300)
and lands in the 32% bracket. Federal tax on $50,000 distribution:
~$15,000 (blended across 24% and 32% portions). California state tax on
additional $50,000: ~$5,700. Combined: ~$20,700/year. Total over 10
years: ~$207,000.

Bracket-filling approach: Mark’s 24% bracket ends at
$197,300 (single, 2026). His base taxable income is $185,000, leaving
$12,300 of room in the 24% bracket and $65,525 of room before reaching
the 35% bracket ($250,525 for single filers). A $50,000/year
distribution keeps him at $235,000, comfortably within the 32% bracket
ceiling.

For high-income beneficiaries like Mark, the strategy shifts from
bracket filling to bracket ceiling management. The goal is to keep
distributions from pushing into the 35% bracket ($250,525 for single
filers). At $185,000 base income, Mark has $65,525 of room before
reaching 35%. The entire $500,000 can be distributed evenly at
$50,000/year and stay within the 32% bracket each year ($235,000
taxable, well below $250,525).

The alternative, a year-10 lump sum of $500,000+, would push total
income to $685,000+, reaching the 37% bracket and triggering NII tax on
investment income. Even for a high-income beneficiary, level
distributions save approximately $35,000 in federal taxes compared to
the year-10 lump sum.

Advisor Takeaway: For high-income beneficiaries who
are already past the 22% or 24% bracket, the optimization target shifts.
The goal becomes avoiding the 35% and 37% brackets, not filling lower
ones. The math still favors spreading distributions, but the savings
come from avoiding the steepest brackets rather than staying in the
lowest ones.

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Do
Beneficiaries Have to Take Annual RMDs Under the 10-Year Rule?

This is one of the most frequently confused points in inherited IRA
planning.

If the original owner died before their required beginning
date (generally before age 73): No annual distributions are
required in years 1 through 9. The only requirement is that the account
is fully distributed by December 31 of the tenth year. This gives the
beneficiary maximum flexibility to choose the distribution pattern.

If the original owner died on or after their required
beginning date: The beneficiary must take annual distributions
in years 1 through 9, calculated using the IRS Single Life Expectancy
Table. The remaining balance must still be fully distributed by year
10.

The IRS issued final regulations in July 2024 clarifying this
distinction after years of confusion and proposed rules. For accounts
inherited in 2020 through 2024, the IRS waived penalties for missed
annual distributions, but that relief does not extend indefinitely.
Advisors should verify the original owner’s RMD status as the first step
in any inherited IRA engagement.

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Beyond Federal
Tax: Other Factors to Consider

State Income Tax

Nine states have no income tax (AK, FL, NV, NH, SD, TN, TX, WA, WY).
For beneficiaries in the remaining 41 states plus DC, the state tax
impact of a year-10 distribution can be substantial. States with
progressive rate structures amplify the bracket-jumping problem. A
beneficiary in California, for instance, faces a combined federal and
state marginal rate exceeding 50% on income above $1M.

Net Investment Income Tax

The 3.8% NIIT applies to the lesser of net investment income or MAGI
exceeding $250,000 (MFJ). Inherited IRA distributions are not themselves
investment income for NIIT purposes, but a large distribution can push
total MAGI above the threshold, causing other investment income (capital
gains, dividends, interest) to become subject to the surtax.

Medicare IRMAA

For beneficiaries aged 63 or older, a large inherited IRA
distribution can trigger IRMAA surcharges two years later when they
enroll in or are already on Medicare. The two-year lookback means a
year-10 distribution in 2035 affects Medicare premiums in 2037. For a
couple, a single IRMAA tier jump can cost $2,296 per year or more.

Impact on Other Income
Planning

The inherited IRA distribution schedule should be coordinated with
the beneficiary’s own retirement planning. If the beneficiary is also
doing Roth
conversions from their own IRA, the inherited IRA distributions
compete for bracket space. Planning both simultaneously avoids a
situation where inherited IRA distributions crowd out conversion
opportunities. For beneficiaries who are also retirees managing their
own spending, the inherited IRA distributions interact with IRMAA planning and
guardrails-based spending strategies.

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How
Income Lab Approaches Inherited IRA Distribution Planning

Income Lab models inherited IRA distributions using stretch, 10-year
rule, 5-year rule, or lump sum methods, with beneficiary classification
(EDB vs. NEDB) driving the available options. The Tax Lab runs 20
different distribution strategies simultaneously and ranks them based on
net income, net legacy, total taxes, and average effective tax rate, so
advisors can see exactly which approach produces the best outcome for a
specific client’s situation.

For advisors looking for more targeted analysis, Penny’s Inherited
IRA Distribution Optimizer determines the optimal distribution pattern
(even, front-loaded, or back-loaded) based on the beneficiary’s income
profile, tax brackets, and 10-year timeline. It handles the
bracket-filling math that would otherwise require a spreadsheet and
hours of manual modeling.

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Getting Started

The inherited IRA conversation is urgent by definition. The 10-year
clock starts ticking at death, and every year of inaction narrows the
distribution window and grows the balance that will eventually be
taxed.

If you are advising clients who have inherited IRAs, or whose parents
are aging and likely to leave tax-deferred accounts, the planning starts
now. Book a walkthrough to see how Income Lab
handles inherited IRA distribution optimization, bracket-filling Roth
conversion strategies, and the full range of tax-aware distribution
planning.

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Sources

• SECURE Act of 2019 (Setting Every Community Up for Retirement
  Enhancement Act), Pub. L. 116-94
• SECURE 2.0 Act of 2022, Pub. L. 117-328
• IRS Final Regulations on Required Minimum Distributions, TD 10001
  (July 2024)
• IRS Publication 590-B, Distributions from Individual Retirement
  Arrangements
• IRS Single Life Expectancy Table (Table I) and Uniform Lifetime
  Table (Table III)
• 2026 Federal Tax Brackets per IRC Section 1, as adjusted for
  inflation (IRS Revenue Procedure)

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All tax estimates in this article use 2026 federal tax brackets
and standard deduction amounts. State tax estimates use current
published rates. Tax calculations are for illustrative purposes only and
should not be relied upon as tax advice. Consult a qualified tax
professional for client-specific guidance.

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