To transfer shares in a U.S. corporation, you sign a stock power form authorizing the change of ownership, clear any approvals the company or federal securities law requires, deliver the paperwork (and the original certificate, if one exists) to the transfer agent so the stock ledger can be updated, and report any gain on your federal tax return. How to transfer shares depends heavily on two things: whether the company is public or private, and whether the shares carry legal restrictions on resale.
The Paperwork That Moves Ownership
The central document is a stock power form, sometimes called an irrevocable stock power or stock assignment. It tells the company’s transfer agent to move ownership on the corporate books from you to the new owner. A complete stock power form carries:
- Your full legal name and account number as the current holder.
- The recipient’s full legal name, mailing address, and taxpayer identification number (Social Security number or EIN).
- The number of shares, the class of stock (common, preferred), and the issuing company’s name.
- The purpose of the transfer — sale, gift, or inheritance — because each triggers different tax reporting.
- A Medallion Signature Guarantee stamp from a participating financial institution, which verifies the signer’s identity and authority.
If a physical stock certificate exists, the original has to be surrendered along with the stock power form. Shares held electronically in book-entry form don’t need a physical certificate. When the transfer is a sale, record the sale date and the cost per share on the form so the transfer agent can report cost basis correctly.
One boundary to know before signing: in community property states, shares acquired during a marriage may be jointly owned regardless of whose name is on the account. If they’re classified as joint management community property, both spouses generally need to participate. Skipping spousal consent can make the transfer voidable.
Approvals for Private Company Shares
Public shares generally move freely through a broker. Private company shares almost always need corporate approval first, because private companies use their bylaws and shareholder agreements to control who can become an owner.
Most private company governing documents include one or more of these restrictions:
- A right of first refusal, meaning you have to offer the shares to existing shareholders (or the company itself) at the same price and terms before selling to an outside buyer.
- A board approval requirement, giving directors broad discretion to reject transfers they consider harmful to the business.
- Prohibited transferee provisions barring certain buyers, such as competitors or anyone who hasn’t signed the company’s shareholder agreement.
These restrictions live in the bylaws, a separate shareholder agreement, or a buy-sell agreement. Ignoring them can invalidate the transfer even if both parties signed the paperwork.
Many private companies also have buy-sell agreements covering involuntary changes — divorce, bankruptcy, disability, death. These often give the company or remaining shareholders a mandatory purchase right when a triggering event occurs, and can dictate the price, the buyer, and the timeline. Review any buy-sell agreement before attempting a transfer.
Once the restrictions are satisfied, the board typically passes a formal resolution approving the transfer. The resolution goes into the board’s meeting minutes and serves as the company’s official authorization for the transfer agent or corporate secretary to update the records.
Registering the New Owner With the Transfer Agent
A transfer agent maintains the corporation’s official ownership records. For a public company, this is normally a third-party financial institution registered with the SEC. For a private company, the corporate secretary usually plays the role.
Once the transfer agent has the completed stock power form, the required corporate approvals, and the original certificate (if any), the agent updates the stock ledger, cancels the old certificate, and issues either a new physical certificate or a book-entry statement to the recipient. This step is what legally establishes the new owner’s rights. Until the ledger is updated, the recipient has no recognized standing as a shareholder for voting or dividends.
If the Certificate Is Lost
If the certificate is lost, destroyed, or stolen, the transfer can’t proceed on the original document. The registered owner has to get a replacement through the transfer agent, which usually means two steps. First, request a stop transfer order so no one can use the missing certificate. Second, buy a surety bond (an indemnity bond) that protects the company and transfer agent against future claims if the certificate turns up in someone else’s hands. The bond typically costs 2% to 3% of the current market value of the shares. Once the bond is in place, the transfer agent cancels the old certificate and issues a replacement. If the missing certificate later reappears, tell the transfer agent so the stop order can be lifted; otherwise selling those shares later may be difficult.
Restricted and Control Shares
Some shares can’t be freely transferred. Federal securities law singles out two categories:
- Restricted securities, which include shares acquired through private placements, Regulation D offerings, employee stock plans, or as compensation for services — essentially anything obtained outside a public market transaction.
- Control securities, which are shares held by affiliates of the issuer: executive officers, directors, or large shareholders with power to direct management.
Restricted securities usually carry a legend on the certificate (or in the book-entry record) saying they can’t be resold without registration or an exemption. Only the issuer’s transfer agent can remove the legend, and the issuer has to consent, typically by providing an opinion letter from its legal counsel.
Selling Under Rule 144
SEC Rule 144 is the most common exemption for reselling restricted or control securities without full SEC registration. To qualify:
- Restricted securities must be held at least six months if the issuer files regular reports with the SEC, or at least one year if it doesn’t. The clock starts when the securities are fully paid for.
- Adequate current information about the issuer must be publicly available. For SEC-reporting companies, that means the issuer is current on its periodic filings.
- Affiliates face a volume cap: no more than the greater of 1% of the outstanding shares of the class, or (for exchange-listed stock) the average weekly trading volume over the prior four weeks, during any three-month period.
- Affiliates must sell through ordinary brokerage transactions, and neither the seller nor the broker can solicit buy orders.
- If an affiliate’s sale exceeds 5,000 shares or $50,000 in any three-month period, the affiliate has to file a Form 144 notice of proposed sale with the SEC.
Non-affiliates who have held restricted securities for at least one year — or six months if the issuer is a reporting company and current on filings — can generally sell without the volume, manner-of-sale, or Form 144 requirements.
Federal Tax on a Sale
If you sell shares for more than your cost basis (original purchase price plus any adjustments), the profit is a capital gain reported on your federal return. Holding period drives the rate.
Shares held for one year or less produce short-term capital gains, taxed at ordinary income rates up to 37%. Shares held longer than one year produce long-term capital gains, taxed at preferential rates. For tax year 2026, the long-term capital gains brackets are:
- 0% on taxable income up to $49,450 (single), $98,900 (married filing jointly), or $66,200 (head of household).
- 15% on taxable income above those thresholds up to $545,500 (single), $613,700 (married filing jointly), or $579,600 (head of household).
- 20% on taxable income above those upper thresholds.
Report the sale on Form 8949, listing proceeds, cost basis, and gain or loss for each transaction. Totals flow to Schedule D of your Form 1040. If your broker sent Form 1099-B, the proceeds and cost basis there should match Form 8949; if they don’t, use the designated adjustment column.
Higher earners may also owe the 3.8% Net Investment Income Tax on capital gains. The surtax kicks in when modified adjusted gross income exceeds $200,000 (single), $250,000 (married filing jointly), or $125,000 (married filing separately). These thresholds are set by statute and don’t adjust for inflation. The 3.8% applies to the lesser of your net investment income or the amount by which your MAGI exceeds the threshold.
Federal Tax on a Gift
Giving shares away instead of selling them runs through different rules. For 2026, you can give up to $19,000 worth of shares per recipient per year with no gift tax filing at all. If you and your spouse elect to split gifts, the combined per-recipient ceiling is $38,000 before a filing is required.
Gifts above the annual exclusion require IRS Form 709, even if no tax is owed because of the lifetime gift and estate tax exemption. You also have to file Form 709 if you transfer a partial interest, give shares the recipient can’t immediately use or access (a future interest), or elect gift splitting with your spouse regardless of the amount.
Valuing Private Company Shares
Publicly traded shares are easy to value: use the market price on the gift date. Private company shares have no market price, so the IRS requires you to determine fair market value. For gifts of non-publicly traded stock above certain thresholds, a qualified appraisal may be required. The appraiser must follow professional appraisal standards, and the fee cannot be based on a percentage of the appraised value.
If the Seller Is a Foreign Person
When a foreign person sells shares in a U.S. corporation that qualifies as a “U.S. real property holding corporation” (meaning a significant portion of its assets are U.S. real estate), the buyer is generally required to withhold 15% of the total sale price under the Foreign Investment in Real Property Tax Act (FIRPTA). For publicly traded stock, FIRPTA withholding applies only if the foreign seller owned more than 5% of the total value of the class of stock at any point in the five years before the sale. The withheld amount is credited against the seller’s U.S. tax liability when the foreign seller files a U.S. return.
After the Transfer
Once the transfer is registered internally, the corporation may need to update its public filings. Most states require corporations to file periodic reports — annual or biennial — with the Secretary of State reflecting current ownership and officer information. Fees vary by state. Failing to file can cost the company its good standing and lead to penalties or administrative dissolution. If the transfer changes who controls the company or who serves as an officer or director, those changes should appear in the next required filing.