Inheriting assets triggers a cascade of tax decisions, many with hard deadlines and irreversible consequences. The rules differ dramatically depending on the type of asset -- real estate, stocks, retirement accounts, and business interests each follow their own tax logic. The most expensive mistake beneficiaries make is treating all inherited assets the same way. The second most expensive mistake is waiting too long to document values and plan distributions.

The Critical Path

These steps are sequenced by urgency and dependency. The first two steps are foundational -- every other decision depends on getting them right. The timing badges reflect when each step needs attention after the date of death.

Your Tax Action Plan After Inheriting Assets
1
Identify and categorize all inherited assets
First 2 weeks
Compile a complete inventory of inherited assets and classify each by type: liquid financial accounts (brokerage, savings), retirement accounts (traditional IRA, Roth IRA, 401(k), pension), real estate (primary residence, rental property, vacant land), business interests (partnership, LLC, S-corp, sole proprietorship), and personal property (vehicles, collectibles, valuables). Each category follows fundamentally different tax rules. Missing an asset from this inventory can result in undocumented basis, missed deadlines, or unexpected tax bills years later.
2
Document the step-up in basis with date-of-death valuations
First 60 days
Under IRC 1014, most inherited assets receive a stepped-up basis equal to the fair market value on the date of death. This eliminates all capital gains that accumulated during the decedent's lifetime. For publicly traded securities, request date-of-death account statements from every brokerage. For real estate, obtain a formal appraisal as of the date of death. For business interests, engage a qualified valuation professional. This documentation is your permanent proof of basis -- without it, the IRS may treat your basis as zero when you eventually sell.
3
Understand inherited retirement account distribution rules
First 30 days
The SECURE Act of 2019 fundamentally changed how inherited retirement accounts work. Most non-spouse beneficiaries must now empty inherited IRAs within 10 years of the owner's death (the "10-year rule"). If the original owner died on or after their Required Beginning Date, the beneficiary must also take annual RMDs within that 10-year window. Five categories of "eligible designated beneficiaries" -- surviving spouses, minor children, disabled individuals, chronically ill individuals, and beneficiaries not more than 10 years younger than the decedent -- can still use the stretch IRA over their life expectancy.
4
Address inherited real estate decisions
First 6 months
Inherited real estate involves multiple overlapping tax considerations. The step-up in basis eliminates accumulated appreciation, giving you a fresh basis at current market value. If you sell immediately, there may be little or no capital gains tax. If you convert the property to a rental, you begin depreciating from the stepped-up basis. Be aware that some states (notably California under Proposition 19) may reassess property taxes upon transfer, significantly increasing ongoing costs. The decision to keep, rent, or sell should be made with full knowledge of the tax implications.
5
Handle inherited business interests
First 90 days
Inherited business interests require immediate attention. The step-up in basis applies to the decedent's ownership stake, but the mechanics depend on entity structure. For sole proprietorships, each asset gets a step-up individually. For partnerships and LLCs, a Section 754 election may need to be filed to step up the inside basis of partnership assets to match your outside basis -- without this election, you may lose the benefit of the step-up on future asset sales within the entity. For S-corps, the stock basis steps up but the inside asset basis does not. Decide quickly whether you will continue operating, sell, or wind down the business.
6
Navigate state inheritance and estate taxes
First 3 months
Fourteen states and the District of Columbia impose their own estate tax, and six states levy an inheritance tax (Maryland imposes both). State estate tax exemptions are often far lower than the federal exemption -- as low as $1 million in Oregon and Massachusetts. Inheritance tax rates and exemptions vary by the beneficiary's relationship to the decedent, with siblings and unrelated beneficiaries often facing rates of 10%-16%. The state tax obligation depends on both where the decedent lived and where the real estate is located.
7
Plan distributions from inherited retirement accounts
Before year-end of first year
How you distribute inherited retirement account funds over the 10-year window (or over your life expectancy for eligible designated beneficiaries) directly controls your tax bill. Taking the entire balance in one year can push you into the 32%-37% bracket. Spreading distributions evenly over 10 years keeps you in lower brackets. The optimal strategy accounts for your other income sources, planned Roth conversions, and projected income changes (such as retirement or Social Security commencement) over the 10-year window.
8
Coordinate with the estate executor and other beneficiaries
Ongoing
The estate's income tax return (Form 1041) and your individual return interact. Income earned by estate assets before distribution is taxable to the estate or passed through to beneficiaries on Schedule K-1. Coordinate with the executor to understand what income will be reported on the estate's K-1, when distributions will occur, and whether the estate will make estimated tax payments or pass that obligation to beneficiaries. If there are multiple beneficiaries, ensure the step-up valuations and basis documentation are shared and agreed upon.
## Key Deadlines

These deadlines are non-negotiable. Missing them does not just increase your tax bill -- in some cases, it permanently eliminates basis or forces accelerated distributions.

Critical Deadlines for Inherited Assets
60 days
Date-of-death valuations
Obtain appraisals and account statements documenting fair market value as of the date of death
9 months
Estate tax return (Form 706)
Due 9 months after death if the estate exceeds the federal exemption threshold -- also needed for portability election
Dec 31 of year after death
First-year RMD or distribution
If annual RMDs are required within the 10-year rule, the first must be taken by this date
10 years after death
10-year rule deadline
All funds in inherited retirement accounts must be fully distributed by December 31 of the 10th year after the owner's death
Tax year of distribution
Section 754 election
Filed with the partnership return for the year of the ownership transfer to step up inside basis
## Common Mistakes
Warning

Do not take a lump-sum distribution from an inherited IRA because it seems simpler. Distributing a $500,000 inherited traditional IRA in one year adds $500,000 to your taxable income, easily pushing you into the 35%-37% bracket. The federal tax alone could be $150,000-$175,000. Spreading the same $500,000 over 10 years at $50,000 per year keeps you in a lower bracket and could reduce the total tax to $60,000-$80,000 -- a difference of $70,000-$95,000.

Warning

Do not sell inherited assets before documenting the step-up in basis. If you sell a property you inherited for $450,000 but cannot prove the stepped-up basis was $440,000 at the date of death, the IRS may use the decedent's original purchase price of $150,000 as your basis -- resulting in $300,000 of taxable gain instead of $10,000. Once the asset is sold, obtaining a retroactive appraisal becomes significantly harder and less credible.

Tip

If you inherit both traditional IRA and Roth IRA assets, prioritize distributing the traditional IRA first. Roth inherited accounts are also subject to the 10-year rule, but distributions are tax-free (assuming the 5-year holding period was met by the original owner). Let the Roth grow tax-free for the full 10 years and take the distribution in year 10, while spreading the taxable traditional IRA distributions across all 10 years to manage bracket impact.

## What Inaction Costs
Beneficiary, age 45, inherits $600K traditional IRA, $200K in stock portfolio, and a rental property worth $350K from a parent
Without Planning
No professional guidance -- handles inheritance reactively
  • Liquidates entire $600K inherited IRA in year one to pay off mortgage -- pushes into 35% bracket, $195,000 in federal tax
  • Sells inherited stocks without documenting step-up basis -- pays capital gains tax on $120K of gains that should have been eliminated, costing $18,000-$28,000
  • Inherited rental property taxes reassessed under state law -- $4,800/year increase not anticipated
  • No coordination with estate executor -- receives unexpected K-1 income of $25,000, triggers underpayment penalty
Result$80,000+ in avoidable taxes in year one alone
With Planning
CPA-guided inheritance distribution plan
  • Inherited IRA distributed over 10 years at $60,000/year -- stays in 22%-24% bracket, total tax approximately $105,000 (saving $90,000 vs lump sum)
  • Step-up basis documented for all assets with date-of-death appraisals and statements
  • Rental property analysis completed -- informed decision to sell at stepped-up basis with minimal capital gains
  • K-1 income anticipated and estimated payments adjusted proactively
Result$40,000-$80,000 in tax savings through strategic distribution planning
## Key Forms and References
IRC 1014 (Step-Up in Basis)
Inherited assets receive a basis equal to date-of-death fair market value -- eliminates all prior capital gains
IRS Publication 559
Guide for survivors, executors, and administrators -- covers estate income tax, final returns, and beneficiary obligations
SECURE Act 10-Year Rule
Most non-spouse beneficiaries must fully distribute inherited retirement accounts within 10 years of the owner's death
Form 1041
Estate income tax return -- reports income earned by estate assets and distributions to beneficiaries via Schedule K-1
Section 754 Election
Partnership election to adjust inside basis of assets to match the stepped-up outside basis received by the inheriting partner
State Inheritance Tax
Six states impose inheritance tax on beneficiaries -- rates and exemptions vary by relationship to the decedent
## Get Personalized Guidance

Inherited assets come in many forms, and the optimal tax strategy depends entirely on what you inherited, your existing income, and your state's tax laws. A distribution plan that saves one beneficiary $80,000 could cost another beneficiary money if their circumstances differ.

Take the FindCPA assessment to get personalized interview questions tailored to your inheritance situation, so you can find a CPA who knows how to coordinate step-up basis documentation, distribution planning, and state tax obligations.

Related Articles