Schedule A Meeting
Trusts & Estates / Inherited IRA Rules

Inherited IRA Rules and the 10-Year Rule Strategy

Strategic distribution planning for beneficiaries of inherited IRAs, 401(k)s, and other retirement accounts under the SECURE Act. Tax-efficient withdrawal schedules, RMD compliance, Roth conversions, and multi-generational planning from a CPA team that knows every exception to the 10-year rule.

Schedule A Meeting


100% confidential · No spam

The Numbers-First Proof

How a Smart Distribution Plan Can Save a Beneficiary Six Figures in Tax

Under the SECURE Act, most non-spouse beneficiaries of IRAs inherited after 2019 must empty the account within 10 years. Without a strategic withdrawal plan, most beneficiaries default to taking the full balance in year 10, which often pushes them into the top federal tax bracket and triggers state tax, NIIT, and IRMAA surcharges. A properly modeled 10-year drawdown across lower-bracket years can cut the total tax bill nearly in half. To see how this works, let us assume a $1,000,000 inherited traditional IRA passed to a 45-year-old beneficiary earning $180,000 per year.
Without a Distribution Plan
Lump-Sum Withdrawal in Year 10

$402,000

The beneficiary leaves the IRA untouched until year 10, then withdraws the full balance. That $1M of ordinary income stacks on top of $180K of wages, pushing everything over the top bracket threshold. Federal tax at 37%, state tax, 3.8% NIIT on investment income, and two years of IRMAA Medicare surcharges all trigger. Nearly 40 cents of every inherited dollar goes to tax.
With a 10-Year Distribution Strategy
Annual Draws Timed to Fill Lower Brackets

$248,000

Annual withdrawals calibrated each year to fill the 24% bracket without crossing into the 32% or 35% tiers. Larger draws in years the beneficiary expects lower wages. Coordination with Roth conversion opportunities. No IRMAA surcharge triggered. Total tax saved: $154,000, and the account is emptied exactly on deadline.
Let’s assume a $1M inherited traditional IRA
Metric Lump-Sum Year 10 Strategic 10-Year Plan
Total Inherited Balance $1,000,000 $1,000,000
Top Federal Bracket Hit 37% 24%
NIIT Exposure $3,800+ $0
IRMAA Surcharges Triggered Yes (2 years) No
Total Federal Tax Paid $402,000 $248,000
Total Savings from Distribution Planning
$154,000
Tax Saved = (Balance × Ratetop bracket + NIIT + IRMAA) – (Σ Annual Withdrawal × Ratefilled bracket)
The Advisor Perspective

Where Beneficiaries Lose the Most Money Under the Post-SECURE Rules

The SECURE Act of 2019 and SECURE 2.0 rewrote the inherited retirement account rules for children, grandchildren, siblings, nieces, nephews, friends, trusts, and most other non-spouse beneficiaries. Surviving spouses, minor children of the original owner, chronically ill or disabled beneficiaries, and beneficiaries less than 10 years younger than the decedent follow different rules as Eligible Designated Beneficiaries. Four traps catch the majority of beneficiaries who inherit without professional guidance.
⚠ The 10-Year Deadline Trap

Missing Year 10 Triggers a 25% Excise Tax

For most non-spouse beneficiaries of accounts inherited after 2019, the entire balance must be distributed by December 31 of the tenth year following the year of death. A balance left in the account past that deadline is treated as a missed RMD, triggering a 25% excise tax under Section 4974 (reducible to 10% if corrected within two years). The deadline is hard, non-negotiable, and frequently miscalculated by beneficiaries who believe year 10 is a rolling date.
⚠ Annual RMDs Within the 10-Year Window

The 2024 Final Regulations Changed the Rules Mid-Stream

In July 2024, the IRS finalized regulations confirming that if the original account owner had already started RMDs before death, the non-spouse beneficiary must take annual RMDs in years 1 through 9 in addition to emptying the account by year 10. Beneficiaries who skipped RMDs in 2020 through 2024 received penalty waivers, but from 2025 forward the annual RMD requirement is enforced. Many beneficiaries still do not know this rule applies to them.
⚠ Bracket Stacking and IRMAA

One Big Withdrawal Can Trigger Years of Medicare Surcharges

Large inherited IRA withdrawals do more than raise federal tax. They push modified adjusted gross income above the IRMAA thresholds, triggering Medicare Part B and Part D surcharges of up to $6,000 per year per retiree for two years after the withdrawal. A single poorly timed distribution for a beneficiary near retirement can cost $10,000 to $15,000 in Medicare surcharges alone, even if the underlying tax math looked reasonable.
⚠ Trust-Based Inheritances

Pass-Through Trusts Can Cause a Tax Disaster

When an IRA is left to a trust instead of a person, the distribution rules depend on whether the trust qualifies as a See-Through Trust (Conduit or Accumulation). A trust that fails the qualification rules loses the 10-year window entirely and must distribute within five years, at compressed trust tax brackets that hit the 37% rate above $15,200 of income. Reviewing beneficiary designations and trust language before inheritance is the only reliable fix.
Who This Is For

The Inherited IRA Planning Scope We Cover for Every Beneficiary

Every inherited IRA has a different optimal distribution path based on the beneficiary’s age, income, tax bracket trajectory, account type, and relationship to the decedent. Here is the scope we walk through with every client who inherits a retirement account.
Inherited IRA Planning Checklist

5 / 5 Complete

Who We Work With
We work with adult children inheriting from parents, grandchildren inheriting from grandparents, surviving spouses weighing spousal rollover versus inherited IRA treatment, siblings and other family beneficiaries, minor children and their guardians, chronically ill or disabled beneficiaries, trusts named as IRA beneficiaries, charitable remainder trusts receiving retirement accounts, and estate executors handling distribution to multiple heirs. Account types include traditional IRAs, Roth IRAs, SEP-IRAs, SIMPLE IRAs, 401(k)s, 403(b)s, 457(b)s, and inherited annuities.
Beneficiary Classification and Rule Determination
Eligible Designated Beneficiary versus Designated Beneficiary analysis, confirmation of whether the 10-year rule, 5-year rule, or life expectancy method applies, and verification of whether the original owner had already begun Required Minimum Distributions before death. Each classification unlocks a different set of planning options.
Multi-Year Distribution Modeling
Year-by-year withdrawal schedule tied to your projected income, filing status, bracket thresholds, NIIT exposure, and IRMAA breakpoints. Roth conversion opportunities evaluated each year. State tax impact layered in for multi-state residents. Full 10-year projection delivered before the first distribution.
Trust and Beneficiary Designation Review
For inherited IRAs payable to a trust, we verify See-Through Trust qualification, identify whether Conduit or Accumulation treatment applies, and flag any provisions that would accelerate the distribution window. For beneficiaries still in the planning stage, we review and correct beneficiary designations across all retirement accounts to match the estate plan.
Annual Compliance and Form 5329 Support
Annual RMD calculation and documentation, Form 5329 preparation for any excise tax exposure, penalty abatement requests for missed RMDs under the 2-year correction window, and coordination with your custodian on distribution setup. Your inherited IRA stays compliant every year without you tracking deadlines manually.
Quick Eligibility Snapshot
Factor What We Look For
Inheritance date Accounts inherited 2020 or later fall under SECURE Act rules
Beneficiary type Spouse, Eligible Designated, Designated, or Non-Person
Account balance $100K+ where multi-year planning ROI is meaningful
Account type Traditional, Roth, 401(k), 403(b), 457(b), or inherited annuity
Planning window Before your first distribution, ideally in year 1

Make Your Inheritance Work Harder Than the IRS Expects

A $1M inherited IRA can mean $250K or $400K to your family depending on one decision. Get the 10-year plan in place before your first distribution, not after.
Schedule A Meeting

Expert FAQs

What planning services do I need after inheriting an IRA?
Most beneficiaries of inherited IRAs need four core services in place: beneficiary classification under the SECURE Act rules, a multi-year distribution model tied to your bracket and IRMAA projections, annual RMD calculation and Form 5329 compliance, and coordinated Roth conversion planning where it applies. Capital Tax delivers all four as a single engagement, built around the specific 10-year deadline that applies to your inheritance.
Five categories of beneficiary are classified as Eligible Designated Beneficiaries and can stretch distributions over their own life expectancy instead of emptying the account in 10 years: surviving spouses, minor children of the original account owner (only until they reach age 21), chronically ill individuals, disabled individuals, and beneficiaries who are less than 10 years younger than the decedent. Every other beneficiary, including adult children, grandchildren, siblings, friends, and most trusts, falls under the standard 10-year rule.
It depends on whether the original account owner had already started Required Minimum Distributions before death. If yes, the 2024 final IRS regulations require you to take annual RMDs in years 1 through 9 in addition to fully distributing the balance by year 10. If the original owner died before their RMD start date, no annual RMDs are required within the 10-year window, but the full balance still must be distributed by December 31 of year 10. Beneficiaries who missed RMDs in 2020 through 2024 received automatic penalty relief, but the enforcement begins in 2025.
Inherited Roth IRAs are significantly more valuable to the beneficiary. Withdrawals from an inherited Roth IRA are tax-free as long as the original account was at least five years old at the time of the owner’s death. Traditional IRA withdrawals are taxed as ordinary income in the beneficiary’s bracket. Both still fall under the 10-year distribution rule, but with a Roth IRA, the strategy shifts to letting the balance grow tax-free for the full 10 years before emptying it, while with a traditional IRA, the priority is spreading withdrawals across years to minimize bracket stacking.
A non-spouse beneficiary cannot convert an inherited traditional IRA directly to a Roth IRA. Only surviving spouses who treat the inherited account as their own (via spousal rollover) can execute a Roth conversion. Non-spouse beneficiaries do have adjacent planning options, however, such as using inherited IRA distributions to free up cash that funds Roth conversions on their own existing traditional IRA or 401(k) balances. Capital Tax models these coordinated strategies as part of every 10-year distribution plan.

Disclaimer: This is not tax advice, and it is recommended to consult a tax professional, as every tax situation is unique.