Dividing inherited stocks among heirs runs on three tracks at once: the legal method that sets each person’s share, the brokerage paperwork that moves the shares out of the decedent’s name, and the federal tax rules that decide what anyone owes on the way out. The share allocation follows what the will, trust, or beneficiary form specifies. The transfer follows the brokerage’s document requirements. And the tax treatment depends heavily on whether the shares sat in a regular brokerage account or a retirement account, because only the former gets the stepped-up basis that erases a lifetime of capital gains.
How Each Heir’s Share Gets Calculated
The math starts with the distribution method named in the governing document. Two show up most often.
Per stirpes divides the estate along family branches. If the decedent had three children and one predeceased them, that child’s third passes down to their own children rather than getting redistributed among the surviving siblings. The grandchildren step into their parent’s place and split that branch’s share.
Per capita divides equally among all living members of a designated group. When a member of that group has already died, their share is absorbed by the survivors, not passed to their descendants. Brokerages follow whichever method the account documents specify. Executors don’t have discretion to override it.
When a Transfer-on-Death Designation Controls
Some inherited stocks skip probate entirely. If the original owner filed a transfer-on-death designation on the brokerage account, the shares pass directly to the named beneficiary once the firm receives a death certificate. Every state has adopted some version of the law allowing TOD registration on securities accounts.
A TOD designation overrides the will for those specific shares. If the will names one person and the TOD form names someone else, the TOD beneficiary receives the stock. This catches families off guard after divorces, remarriages, or the birth of a child, when the will was updated but the brokerage form was not.
Documents the Brokerage Will Require
Firms won’t release shares from a decedent’s account without a specific packet. Missing one item can stall the transfer for weeks.
- A certified death certificate. Most firms want an original or certified copy, not a photocopy.
- Letters Testamentary or Letters of Administration issued by the probate court, with a visible court seal. Many firms reject letters older than 60 days.
- An Affidavit of Domicile, which is a sworn statement of where the decedent permanently lived at death. It keeps more than one state from claiming taxing rights over the same securities.
- The final account statement, which lists every holding to be distributed.
- The firm’s own transfer forms, sometimes titled an Inherited Securities Task form or Non-Probate Transfer form. These request Social Security numbers for each beneficiary, the decedent’s account numbers, and the percentage going to each heir.
The executor signs the transfer forms. Some firms also require beneficiary signatures. Assembling the full package before contacting the brokerage avoids the cycle of partial submissions and rejection letters.
Moving the Shares
The executor’s signature on transfer paperwork needs a Medallion Signature Guarantee. This stamp is issued only by participating banks, credit unions, and broker-dealers, and it makes the guaranteeing institution financially liable if the signature turns out to be forged.1U.S. Securities and Exchange Commission. Medallion Signature Guarantees: Preventing the Unauthorized Transfer of Securities A standard notary won’t substitute. Not every branch participates in the Medallion program, so call ahead.
Completed packets typically go to the brokerage’s estate or transitions department by certified mail. Some firms now accept secure digital uploads, which cuts a few days off the timeline.
In-Kind Transfer Versus Liquidation
The executor decides whether to move the actual shares into each heir’s account or sell everything and split the cash. An in-kind transfer preserves the positions and does not trigger a taxable sale. Liquidation converts the portfolio to cash at current market prices and distributes proceeds. If the will specifies an approach, follow it. If it doesn’t, the executor weighs what the beneficiaries want and whether the portfolio divides cleanly by percentage.
Even splits rarely land neatly on whole shares. An executor may combine in-kind transfers with small cash payments to equalize, or sell a portion of the holdings to make the arithmetic work.
Where the Shares Land
Each beneficiary needs a receiving account. For regular brokerage assets, that’s typically a new individual brokerage account in the heir’s name. For retirement assets, it’s usually an Inherited IRA. Once the firm verifies the paperwork, shares generally appear in the new accounts within a few weeks, and the heir gains full control.
Dividends and Corporate Actions During Probate
Stocks keep paying while the estate is open. Dividends paid after the date of death belong to the estate, not the heirs, until the shares are formally distributed. If the estate’s gross income reaches $600 in a tax year, the executor must file Form 1041.2Internal Revenue Service. Publication 559, Survivors, Executors, and Administrators The income is taxed either to the estate or to the beneficiary who receives a distribution that year, never both. After distribution, future dividends go to the heir who now owns the shares.
Splits, mergers, and other corporate actions during probate change share counts and per-share values. The executor tracks these because they affect what each heir ultimately receives and the cost basis attached to those shares.
The Stepped-Up Basis
The stepped-up basis is the reason inherited stock is often taxed so lightly when heirs sell. Federal law resets the cost basis of inherited shares to their fair market value on the date the owner died.3Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent If a parent bought a stock at $10 decades ago and it was worth $100 on the date of death, the heir’s basis is $100. Every dollar of appreciation during the original owner’s lifetime is erased for capital gains purposes. Sell shortly after inheriting and the tax bill is often close to zero.
The brokerage usually updates the account records to reflect the new basis once the transfer is finalized. Verify it. Errors are surprisingly common with old holdings, and a wrong basis can cost thousands.
Alternate Valuation Date
If the portfolio’s value falls after the death, the executor can elect to value the entire estate six months after the date of death instead.4Office of the Law Revision Counsel. 26 USC 2032 – Alternate Valuation The election is only available if it reduces both the gross estate value and the total estate tax owed. Assets sold or distributed before the six-month mark are valued as of the sale or distribution date. This is an all-or-nothing election covering the whole estate, not a per-asset choice.
Community Property Double Step-Up
Married couples in community property states get an extra benefit. When one spouse dies, both halves of community property stock receive a stepped-up basis, not just the deceased spouse’s half.3Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent In common-law states, the survivor’s half keeps its original basis. In community property states, both halves reset to current market value. Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin are community property states.
Retirement Account Stocks Don’t Get a Step-Up
The stepped-up basis does not apply to stocks held inside a traditional IRA, 401(k), or similar retirement account. Contributions were tax-deferred going in, so every dollar coming out is taxed as ordinary income, regardless of who takes the distribution.
Non-spouse beneficiaries who inherit a traditional IRA generally must empty the account by December 31 of the year containing the tenth anniversary of the original owner’s death.5Internal Revenue Service. Publication 590-B, Distributions from Individual Retirement Arrangements (IRAs) A narrower group of “eligible designated beneficiaries,” which includes surviving spouses, minor children of the deceased, disabled individuals, and beneficiaries not more than 10 years younger than the deceased, can instead stretch distributions across their own life expectancy.
Inherited Roth IRAs follow similar timing rules, but qualified distributions come out tax-free as long as the original Roth had been open at least five years. There’s no traditional step-up because there’s no taxable gain to reset; the built-in tax advantage is that the growth passes to the heir with no income tax at all.
Capital Gains When You Sell
Inherited stock is treated as a long-term holding automatically, no matter how briefly the original owner or the heir actually held it. That matters because long-term rates run below short-term rates. For 2026, long-term capital gains rates for single filers are:
- 0% on taxable income up to $49,450
- 15% on taxable income from $49,451 to $545,500
- 20% on taxable income above $545,500
Married couples filing jointly get wider brackets: 0% up to $98,900, 15% up to $613,700, and 20% above that. Gain from selling inherited stock stacks with other income when applying these thresholds.
Higher earners also face the 3.8% Net Investment Income Tax on capital gains once modified adjusted gross income exceeds $200,000 for single filers or $250,000 for married couples filing jointly.6Internal Revenue Service. Topic No. 559, Net Investment Income Tax Those thresholds are not inflation-adjusted, so they reach more taxpayers each year.
Wash Sale Rule
If you sell inherited stock at a loss and buy substantially identical shares within 30 days before or after the sale, the IRS disallows the loss. The disallowed amount is added to the basis of the replacement shares instead. To claim the loss, wait at least 31 days to repurchase, or buy shares of a different company or fund in the meantime.
Extra Reporting for Large Estates
Executors of estates that exceed the basic exclusion amount for the year of death must file Form 8971 with the IRS and furnish a Schedule A to each beneficiary showing the reported value of every asset received.7IRS.gov. Instructions for Form 8971 and Schedule A For deaths in 2026, the basic exclusion is $15,000,000.8Internal Revenue Service. What’s New – Estate and Gift Tax
Form 8971 is due 30 days after Form 706 is filed or due, whichever comes first. Late or incorrect filings trigger penalties starting at $50 per form and rising to $250, with annual maximums reaching $3,000,000. Intentional disregard carries a minimum $500 penalty per form with no cap.7IRS.gov. Instructions for Form 8971 and Schedule A
Consistent Basis Rule
For estates that must file Form 8971, beneficiaries cannot claim a basis higher than the value reported on their Schedule A.9Federal Register. Consistent Basis Reporting Between Estate and Person Acquiring Property From Decedent If the executor reports a stock at $50 per share and an heir uses $55 when selling, the IRS can impose a 20% accuracy-related penalty on the resulting underpayment. Heirs should hold onto the Schedule A they receive and hand it to their tax preparer when they eventually sell.