How to Minimize Taxes on Inherited Retirement Assets

The 10-Year Rule That Applies to Most Inherited Retirement Accounts

The SECURE Act changed the rules for inherited retirement accounts starting in 2020. Before the SECURE Act, non-spouse beneficiaries could stretch inherited IRA distributions over their own life expectancy - taking small annual withdrawals and letting the balance grow tax-deferred for decades. A 45-year-old inheriting a $500,000 IRA could spread distributions over 38 years. After the SECURE Act, most non-spouse beneficiaries must empty the inherited account by December 31 of the 10th year after the original owner's death. No required annual distribution within those 10 years is mandated for most beneficiaries (except when the original owner had already reached their required beginning date for RMDs), but the full balance must be gone by year 10. For a 50-year-old inheriting a $500,000 traditional IRA, this means $500,000 plus 10 years of continued growth must be distributed by year 10. If the account grows at 5% and no distributions are taken for 10 years, the balance at year 10 is approximately $814,000 - all of which must be withdrawn in a single year and taxed as ordinary income. A $814,000 withdrawal in a single year pushes even a moderate-income taxpayer well into the 37% bracket for a significant portion. The optimal strategy is to spread distributions across all 10 years to prevent bracket stacking. Distributing $81,000 per year from a static $500,000 account (ignoring growth for simplicity) keeps each year's inheritance income at a manageable amount that can be blended with other income to control the overall tax cost.

The Step-Up in Basis: The Most Valuable Benefit for Inherited Investments

For inherited investment accounts outside of retirement plans - brokerage accounts, directly held stocks, real estate - the step-up in basis is one of the most powerful and underused provisions in the tax code. When someone dies, the cost basis of capital assets they owned is stepped up to the fair market value at the date of death. All prior unrealized capital gains are permanently forgiven. A parent who bought Apple stock for $5,000 in 2001 and held it until death when it was worth $200,000 has $195,000 in unrealized capital gains. If they sold it themselves, they would owe 15-20% plus the 3.8% Net Investment Income Tax on those gains - up to $46,550. When they leave it to heirs, the basis steps up to $200,000. If the heirs sell immediately, the capital gain is zero. No tax owed on $195,000 in appreciation. The strategic implication during the original owner's lifetime: highly appreciated assets should generally be held until death rather than sold. Pull cash from other sources (Roth accounts, muni bond income, Social Security) and let the appreciated investments ride. The heirs' tax basis is reset at death, eliminating the embedded tax liability permanently. For inherited real estate, the same step-up applies. Property purchased for $100,000 that is worth $600,000 at the owner's death passes to heirs with a $600,000 basis. Selling it immediately generates no capital gains. The depreciation recapture that the original owner would have owed on rental property is also forgiven by the step-up.

Asset Types and Their Tax Treatment at Inheritance

Traditional IRA or 401(k): Fully taxable to beneficiaries as ordinary income when distributed. No step-up in basis. Subject to the 10-year rule for most non-spouse beneficiaries. The entire balance represents pre-tax dollars that have never been taxed. Every dollar withdrawn is ordinary income in the year of withdrawal. Roth IRA or Roth 401(k): Tax-free to beneficiaries when distributed, subject to the 10-year rule. The 5-year aging requirement applies to Roth accounts inherited from owners who had not yet held the account for 5 years - in most cases, inherited Roth accounts are fully accessible tax-free. The 10-year distribution requirement still applies, but the distributions carry no income tax. Taxable brokerage account: Receives a step-up in basis to date-of-death value. All prior unrealized gains are forgiven. Dividends and interest generated after inheritance are taxable. Future gains after the step-up date are taxable at long-term capital gains rates if held more than one year. Real estate: Full step-up in basis, forgiveness of depreciation recapture, and forgiveness of prior capital appreciation. One of the most tax-favored inheritances available. Caution: property taxes, management costs, and carrying expenses continue regardless of the step-up. Inherited annuity: Unlike most capital assets, annuities do NOT receive a step-up in basis. The gain (accumulated earnings above the original premium) is taxable as ordinary income when distributed. This is one of the least tax-efficient inheritances from a beneficiary's perspective. Life insurance death benefit: Income tax-free under IRC Section 101(a). The full face amount passes to beneficiaries without federal income tax. No RMD requirement, no 10-year rule, no income tax of any kind. The death benefit may be subject to estate tax if the policy is owned by the insured's estate, but with proper ownership structure (ILIT or beneficiary-owned policy), even estate tax can be avoided.

• Identify each inherited asset type and its specific tax treatment before making any distributions
• Spread inherited traditional IRA distributions across all 10 years to avoid bracket stacking
• Consult with the custodian immediately about 10-year rule compliance - missed RMDs carry a 25% penalty
• For inherited brokerage accounts, get a date-of-death valuation to establish the stepped-up basis
• Consider holding inherited real estate to benefit from the step-up rather than selling immediately
• Do not roll an inherited IRA into your own IRA unless you are the surviving spouse - non-spouses cannot do this

Surviving Spouse Rules: More Flexibility Than Other Heirs

Surviving spouses are the one category of beneficiary with significantly more flexibility than others. A surviving spouse can roll an inherited IRA into their own IRA and treat it as their own account entirely - with their own RMD rules, their own beneficiary designations, and no 10-year distribution requirement. A 58-year-old surviving spouse who inherits their partner's $600,000 traditional IRA can roll it into their own IRA and let it continue growing until their own RMDs begin at 73. That is 15 more years of tax-deferred growth. They can also name their own beneficiaries, which starts the 10-year clock fresh when they eventually die. Alternatively, the surviving spouse can treat the inherited IRA as an inherited IRA (not rolling it into their own) if they need to take distributions before their own age 59.5 without penalty - because the 10% early withdrawal penalty does not apply to inherited IRAs. This flexibility to switch between treatment types makes spousal inheritance planning particularly valuable to get right.

Planning Ahead: Making It Easier for Your Heirs

The most powerful thing an owner can do is structure assets before death to minimize the tax burden on heirs. Converting traditional IRA balances to Roth during retirement pays the tax at your (hopefully lower) rate so heirs receive tax-free distributions under the 10-year rule instead of taxable ones. The conversion tax paid reduces your taxable estate and delivers tax-free inheritance - a dual benefit. Life insurance is the cleanest possible wealth transfer from a tax standpoint. A $1,000,000 death benefit delivers $1,000,000 to heirs income-tax-free with no 10-year distribution requirement and no basis issues. An IUL policy, if properly owned outside the estate (or via an ILIT), can deliver that death benefit free of both income tax and estate tax. For transferring wealth efficiently to the next generation, a funded life insurance policy bypasses nearly all of the complexity that traditional retirement accounts create at inheritance. Not every family has the health or time horizon for permanent life insurance. For those who do, pairing Roth conversion during retirement with a funded life insurance policy leaves heirs with two categories of tax-free assets and eliminates most of the tax complexity at inheritance.