Inherited IRA RMD Calculator
Estimate your required minimum distribution (RMD) under the life expectancy method, or plan a withdrawal amount under the 10-year rule.
Educational estimate only. Use IRS Publication 590-B and your tax advisor for final numbers.
How inherited IRA RMD rules work
Inherited IRA distribution rules changed significantly after the SECURE Act. The key concept is simple: your required distribution schedule depends on who inherited the account, when the original owner died, and whether the beneficiary qualifies for special treatment.
Because rules can vary, this inherited IRA calculator rmd tool gives you two practical paths:
- Life Expectancy Method: useful for eligible designated beneficiaries and certain older inherited IRA structures.
- 10-Year Rule Planner: useful for most non-spouse beneficiaries inheriting after 2019 who must empty the account by the end of year 10.
Who typically uses each method?
1) Life Expectancy Method
This usually applies to beneficiaries who can “stretch” distributions, such as some spouses, certain minor children (until majority), disabled or chronically ill beneficiaries, and beneficiaries not more than 10 years younger than the decedent. Many pre-2020 inheritances also use life expectancy schedules.
2) 10-Year Rule
Most non-spouse designated beneficiaries who inherited in 2020 or later must fully distribute the account by December 31 of the 10th year after death. Annual withdrawals may still be needed in some cases, especially where the original account owner died on or after required beginning date rules.
How this calculator estimates your distribution
Life Expectancy mode
The calculator uses:
- RMD = Prior year-end balance ÷ Current life expectancy factor
- Current factor is either:
- your manually entered first-year IRS factor minus elapsed years, or
- a quick age-based estimate factor minus elapsed years.
If you already know your IRS factor from Publication 590-B, entering it manually is the best option.
10-Year planner mode
The calculator estimates a level annual withdrawal amount that could deplete the account over remaining years given your assumed investment return. This helps with planning and tax strategy, but it is not a legal substitute for IRS-prescribed minimums when annual RMDs apply.
Example: quick planning workflow
Suppose your inherited IRA balance is $300,000.
- If you’re using a life expectancy schedule and your factor this year is 30.2, your estimated RMD is about $9,934.
- If you’re under a 10-year payout and want even annual withdrawals with a 5% assumed return, the suggested annual amount may be much higher to finish on time.
In real life, many beneficiaries deliberately vary distributions year by year to manage tax brackets.
Data to gather before you calculate
- Prior December 31 account value
- Your beneficiary classification and inherited IRA type
- Year of death and year the inherited account began distributions
- Your IRS life expectancy factor (if applicable)
- Expected marginal tax rate and withholding preferences
Common mistakes to avoid
- Using the wrong IRS table or wrong life expectancy factor
- Forgetting to reduce life expectancy factors correctly each year when required
- Assuming “no annual RMD” under the 10-year rule in every scenario
- Waiting until year 10 and creating an avoidable tax spike
- Ignoring state taxes and withholding impacts
Tax strategy ideas for inherited IRA withdrawals
Good inherited IRA planning often means balancing mandatory withdrawals with your broader tax picture. Consider:
- Taking more in lower-income years
- Spreading 10-year withdrawals to avoid bracket jumps
- Coordinating with Social Security, capital gains, and other retirement income
- Reviewing quarterly estimates and withholding so you avoid penalties
A CPA or enrolled agent can help confirm your exact obligations for your beneficiary category.
Frequently asked questions
Is this calculator official IRS software?
No. It’s an educational calculator that helps you estimate and plan. Always verify final numbers with IRS guidance and a qualified tax professional.
Can spouses use this calculator?
Yes, for rough planning. But spouses may have additional options (such as treating the IRA as their own), so exact treatment should be reviewed carefully.
What if my account has multiple beneficiaries?
Distribution rules can differ per beneficiary and per separate inherited account. Use account-specific values and verify how custodial account setup affects your calculations.