Beneficiary IRA Stretch Calculator: Maximize Your Inheritance After the SECURE Act
Use this guide to understand the assumptions, inputs, results, and next steps behind the calculator.
Inheriting an IRA can be a significant financial windfall, but it comes with complex rules that dictate how and when you must withdraw the funds. The SECURE Act of 2020 dramatically changed these rules for most non-spouse beneficiaries, replacing the lifelong "stretch" provision with a strict 10-year withdrawal window. Failing to understand these rules can lead to steep penalties—25% of any amount that should have been withdrawn but wasn't.
This calculator helps you navigate the post-SECURE Act landscape by modeling different distribution strategies for your inherited IRA. It projects your annual withdrawals, tax impact, and remaining balance to help you decide whether to take distributions evenly, wait until the final year, or use another approach. This tool is designed for anyone who has inherited a Traditional or Roth IRA and needs to create a tax-efficient withdrawal plan that complies with IRS regulations.
Inherited IRA Withdrawal Rules: Who Gets to Stretch in 2026?
The single most important factor determining your withdrawal requirements is your beneficiary classification. The IRS sorts beneficiaries into three main categories, each with a different set of rules. The "stretch" IRA, which allowed beneficiaries to take small distributions over their own life expectancy, is now only available to a select group known as Eligible Designated Beneficiaries (EDBs).
| Beneficiary Type | Who It Is | Governing Rule | Key Takeaway |
|---|---|---|---|
| Eligible Designated Beneficiary (EDB) | - Surviving Spouse<br>- Minor child of the original owner<br>- Disabled or chronically ill individual<br>- Person not more than 10 years younger than the owner | Life Expectancy "Stretch" | Can take required minimum distributions (RMDs) over their own single life expectancy, preserving tax deferral for decades. A surviving spouse has additional flexible options. |
| Designated Beneficiary | Any individual who is not an EDB (e.g., adult children, grandchildren, siblings, friends). | 10-Year Rule | Must withdraw the entire account balance by the end of the 10th year following the year of the original owner's death. Annual RMDs may also be required if the owner had already begun taking them. |
| Non-Designated Beneficiary | An entity that is not a person (e.g., an estate, a charity, a non-qualifying trust). | 5-Year Rule | Must withdraw the entire account balance by the end of the 5th year following the year of the original owner's death. |
Understanding your category is the first step in creating a compliant and effective withdrawal strategy. For most adult children inheriting an IRA, the 10-Year Rule is the new standard. This rule significantly accelerates distributions and the associated tax burden compared to the old stretch rules. You can use the Inherited IRA RMD Calculator to determine if you need to take annual minimums within the 10-year window.
Choosing Your 10-Year Distribution Strategy
If you fall under the 10-year rule, you have complete flexibility on when you take withdrawals, as long as the entire account is empty by December 31st of the 10th year. This creates a strategic planning opportunity. You don't have to take 1/10th of the balance each year. This calculator models four common approaches.
1. Equal Annual Distributions: This strategy creates a predictable income stream by spreading withdrawals evenly over the 10-year period.
- Best for: Beneficiaries who want consistent annual income from the inheritance or prefer a simple, systematic approach.
- Tax Impact: Creates a level tax bill each year, which can be easier to plan for than a single large tax hit. It helps with "tax bracket smoothing," preventing one massive withdrawal from pushing you into a much higher tax bracket.
2. Back-Loaded (Year 10 Lump Sum): This approach involves taking no (or minimal) distributions for nine years and then withdrawing the entire remaining balance in year 10.
- Best for: Beneficiaries in high-income years who expect to be in a lower tax bracket in the future (e.g., nearing retirement). It allows the account to grow tax-deferred for the longest possible time.
- Tax Impact: Creates a massive tax liability in the final year. This "tax bomb" can easily push you into the highest federal and state tax brackets, potentially costing you more in taxes overall than other strategies. The IRA Withdrawal Tax Calculator can help estimate the impact.
3. Front-Loaded (Take More Early): This strategy involves taking larger distributions in the first few years and smaller ones later.
- Best for: Beneficiaries who are currently in a lower tax bracket but expect their income to rise significantly over the next decade. It allows you to "fill up" lower tax brackets now before your income increases.
- Tax Impact: Can be highly tax-efficient if your income trajectory is rising. By paying taxes at lower rates now, you avoid paying at higher rates later.
4. Opportunistic Withdrawals (Manual Strategy): While not a specific model in the calculator, this involves taking withdrawals strategically based on your annual income. For example, you might take a larger distribution in a year you have lower-than-usual income or a large deduction. This requires active management but can be the most tax-efficient method.
Special Flexibility for Surviving Spouses
Surviving spouses are the only beneficiaries who retain the full range of flexible options for an inherited IRA. If you inherit an IRA from your spouse, you generally have three choices, each with different long-term implications.
- 1. Treat it as Your Own IRA: This is the most common choice. You can roll the inherited IRA into your own existing IRA or a new one. The account is then treated exactly like your own, subject to standard RMD rules starting at age 73. This allows for maximum continued tax deferral.
- 2. Remain a Beneficiary (The "Stretch"): You can keep the IRA titled as an inherited account. This allows you to take distributions based on your own life expectancy. A key advantage is that you can take withdrawals before age 59½ without the usual 10% early withdrawal penalty. However, you must begin taking RMDs based on your late spouse's age or your own.
- 3. Follow the 10-Year Rule: A spouse can also elect to follow the 10-year rule, just like a non-spouse beneficiary. This is uncommon but could be useful in very specific estate planning situations or if the spouse needs the funds within a decade.
The best choice depends on your age, your need for the funds, and your overall retirement savings picture. For most, treating the IRA as their own offers the most simplicity and long-term growth potential.
How Your Inherited IRA Projections Are Calculated
The calculator models your inherited IRA's future by projecting its balance, distributions, and taxes on a year-by-year basis. The core calculations depend on the distribution strategy you select.
For an RMD-Only or Back-Loaded strategy (where minimums are taken), the annual distribution is based on the IRS Single Life Expectancy Table.
Required Minimum Distribution = Prior Year-End Account Balance / Life Expectancy Factor
Where:
- Prior Year-End Account Balance = The value of the inherited IRA on December 31st of the previous year.
- Life Expectancy Factor = A divisor from the IRS Single Life Expectancy Table based on your age.
For the Equal Annual Distributions strategy, the calculator solves for a level payment that will deplete the account over the distribution window, accounting for expected growth. This uses an annuity formula.
Equal Annual Payment = Starting Balance / Annuity Factor
Where:
- Starting Balance = The initial value of the inherited IRA.
- Annuity Factor =
(1 - (1 + Growth Rate)^-DistributionYears) / Growth Rate. This factor calculates the present value of a series of future payments.
For all strategies, the tax impact of each withdrawal is estimated directly.
Total Tax on Distribution = Annual Distribution × (Federal Tax Rate + State Tax Rate)
Where:
- Annual Distribution = The gross amount withdrawn from the IRA for the year.
- Federal Tax Rate = Your marginal federal income tax bracket.
- State Tax Rate = Your state's income tax rate.
Answers to Your Inherited IRA Questions
What is the 10-year rule for inherited IRAs?
The 10-year rule, created by the SECURE Act, requires most non-spouse beneficiaries to withdraw all assets from an inherited IRA by the end of the 10th calendar year following the original owner's death. There is no requirement for distributions in years 1-9, but the account must be empty after year 10.
Who qualifies as an Eligible Designated Beneficiary (EDB)?
An EDB is a special type of beneficiary who can still "stretch" distributions over their life expectancy. The five categories of EDBs are: the surviving spouse, a minor child of the account owner (until they reach age 21), a disabled individual, a chronically ill individual, or any person who is not more than 10 years younger than the deceased account owner.
Is it better to take an inherited IRA as a lump sum or over 10 years?
For most people, taking a lump sum is a poor tax decision. A single large withdrawal can easily push you into the highest tax brackets, causing you to lose 40% or more of the inheritance to taxes. Spreading distributions over the 10-year period allows for better tax planning and continued tax-deferred growth. The Inherited IRA Tax Calculator can show the difference.
What is the penalty for missing an inherited IRA RMD or 10-year deadline?
The penalty is 25% of the amount that should have been withdrawn. Under the SECURE 2.0 Act, this penalty can be reduced to 10% if you correct the mistake in a timely manner. This is a significant reduction from the old 50% penalty but is still a costly error.
Can I contribute to an inherited IRA?
No, you cannot make new contributions to an inherited IRA. You also cannot roll over any other retirement funds into an inherited IRA. It is a standalone account that can only receive the assets from the decedent and must be distributed according to the appropriate rules.
How does inheriting a Roth IRA differ from a traditional IRA?
Inheriting a Roth IRA is often more advantageous. The same beneficiary rules (Stretch, 10-Year, 5-Year) apply, but all qualified distributions are completely tax-free. This means you can manage withdrawals for optimal growth without worrying about the tax impact. See the Inherited Roth IRA RMD Calculator for specifics.
Do I have to pay taxes on an inherited IRA?
For a traditional inherited IRA, you will pay ordinary income tax on every dollar you withdraw, just as the original owner would have. For a Roth IRA, withdrawals are tax-free, provided the account was open for at least five years before the first distribution.
Can I do a Roth conversion on an inherited IRA?
No, beneficiaries are not permitted to convert an inherited traditional IRA to a Roth IRA. The only person who can perform a Roth conversion is the original account owner.
Next Steps
Now that you understand the rules and strategies, use the calculator to model your specific situation. Compare how different approaches affect your total after-tax inheritance. For more detailed planning, consider exploring the Inherited IRA Distribution Calculator or learning more about general RMD strategies. If you are also planning for your own retirement, the main IRA Calculator can help you project your savings.
Last updated: July 2026