When a company you own stock in is bought, each of your shares converts into whatever the merger agreement specifies: a set cash amount, a set number of shares in the acquiring company, or a combination of the two. If you hold your shares in a brokerage account, the swap happens automatically on the closing date, and you don’t have to do anything to receive your payment. What you get, when you get it, and what you owe the IRS all depend on how the deal was structured.
Here is what to expect from the announcement through the closing, and after.
Between the Announcement and the Closing
A merger doesn’t close the day it’s announced. Several months usually pass while shareholders vote and regulators review the deal, and a contested vote or antitrust fight can stretch that out further. Your shares keep trading on the exchange the entire time.
Once the deal is announced, the target’s stock price jumps toward the offer price but generally settles just below it. That small gap is the market pricing in the chance the deal falls apart, whether from a regulatory block, a failed shareholder vote, or financing problems. Professional traders who buy at that discount and wait for closing are running what’s called merger arbitrage.
For you, the practical point is simple. You can sell your shares on the open market any day before closing and take roughly the offer price. If you hold through closing, your brokerage handles the conversion. One day the old ticker disappears from your account, and cash, new shares, or both appear in its place.
What You Actually Receive
All Cash
In an all-cash acquisition, you receive a fixed dollar amount for each share. Your position in the target company ends. The old shares disappear from your account, cash takes their place, and you have no continuing stake in the combined business.
All Stock
In an all-stock deal, each of your shares converts into a set number of shares in the acquiring company. That number is called the exchange ratio. A ratio of 0.75 gives you 0.75 shares of the acquirer for every share of the target you held. You continue to own equity, but in the combined company rather than the standalone one.
A Mix of Both
Many deals pay part cash and part stock. The merger agreement usually caps the total cash and total stock the acquirer will hand out, and shareholders may be given the chance to elect which form they prefer. If too many shareholders pick cash, proration cuts everyone’s cash allocation down proportionally and pays the rest in stock. The same reverses if stock elections run over the limit. This keeps the acquirer’s planned capital structure intact.
Fractional Shares
When the exchange ratio doesn’t produce a whole number, the acquirer doesn’t issue a fractional share. Instead, that piece is sold and you receive a small cash payment known as “cash in lieu.” If your entitlement works out to 47.6 acquirer shares, you get 47 whole shares plus cash for the 0.6, priced around the closing date. The IRS treats that small cash payment as a sale of the fractional share, so you recognize a tiny gain or loss on that portion.
How the Shares Change Hands
After shareholders approve the deal and regulators sign off, the merger reaches its closing date. The acquirer hires an exchange agent, a financial institution that runs the mechanical swap of old shares for new consideration.
If your shares sit in a brokerage account, the exchange is automatic. Your broker coordinates with the exchange agent, and within a few business days of closing, your old position is replaced by whatever the deal specified. You don’t need to sign anything or return anything.
If you hold paper stock certificates, the process is different. The exchange agent mails you a letter of transmittal that tells you how to surrender the certificates and where to send your payment or new shares. You’ll need to provide your tax identification number and complete the form. Nothing is released until the paperwork comes back.
If You Ignore the Mail
Merger proceeds you never claim sit in a holding account. After a set period, the exchange agent returns the funds to the acquiring company. Eventually, state unclaimed property laws take over. Every state has an escheatment statute that sends dormant assets to the state after a dormancy period, typically three to five years depending on the state and the type of property. Your money then waits at the state’s unclaimed property office until you file a claim. Responding to merger correspondence promptly avoids the whole detour.
What You Owe in Taxes
Cash Payouts Are Taxable Right Away
Cash received for your shares is a taxable event. Subtract your cost basis from the cash proceeds to get your capital gain or loss. Whether it’s short-term or long-term depends on how long you held the shares. You report the sale on IRS Form 8949, and the totals flow to Schedule D of Form 1040.1Internal Revenue Service. About Form 8949, Sales and Other Dispositions of Capital Assets Your brokerage or the exchange agent sends you a Form 1099-B showing the proceeds.2Internal Revenue Service. Instructions for Form 8949
Stock-for-Stock Exchanges Are Usually Deferred
When you receive only acquirer stock, the transaction can qualify as a tax-free reorganization under IRC Section 368.3Office of the Law Revision Counsel. 26 USC 368 – Definitions Relating to Corporate Reorganizations If it does, Section 354 says you recognize no gain or loss at the exchange itself.4Office of the Law Revision Counsel. 26 USC 354 – Exchanges of Stock and Securities in Certain Reorganizations The tax bill waits until you sell the new shares. Your cost basis from the old shares carries over to the new ones, preserving that deferred gain for later.
Mixed Deals: The Cash Is Taxed, the Stock Is Deferred
When a deal pays both cash and stock, the stock side can still receive deferred treatment, but the cash side (called “boot”) triggers gain recognition. Under Section 356, you recognize gain up to the amount of cash received, but only to the extent you actually have a gain on the transaction overall.5Office of the Law Revision Counsel. 26 USC 356 – Receipt of Additional Consideration If your basis is higher than the total deal value, you have a loss, and the cash portion doesn’t create a taxable gain. The stock keeps a carryover basis, adjusted for any gain you did recognize.
Watch for the Wash Sale Rule on Losses
If the deal produces a capital loss and you receive acquirer shares in the same transaction, the wash sale rule can come into play. IRC Section 1091 disallows a loss on stock if you acquire “substantially identical” stock within 30 days before or after the sale.6Office of the Law Revision Counsel. 26 USC 1091 – Loss From Wash Sales of Stock or Securities Target stock and acquirer stock are typically different securities, but the IRS could push the argument in narrow situations, especially when the target was already a subsidiary of the acquirer. If you sold target shares at a loss shortly before or after receiving acquirer shares through the merger, get a tax professional to look at it before claiming the deduction.
Shares Held in an IRA or 401(k)
Shares held inside a traditional IRA, Roth IRA, or 401(k) don’t trigger any tax at the merger. Cash proceeds simply raise the cash balance of the account. New shares get deposited into the same account. Taxes come later, when you take a distribution, or never in the case of a qualifying Roth. The account custodian runs the exchange for you.
If You Have Employee Stock Options or RSUs
Employees of the target company have a separate set of concerns from ordinary shareholders. Vested options and vested restricted stock units convert into the merger consideration just like any other shares. Unvested awards are the harder question, and the answer depends on the merger agreement and your company’s equity plan.
Unvested options and RSUs are typically handled one of four ways:
- Conversion into equivalent unvested awards in the acquiring company, with adjusted exercise prices and vesting schedules.
- Acceleration, where all unvested awards vest at closing and you receive the deal consideration for them. Some plans include “single-trigger” acceleration that fires automatically on a change of control. Others use “double-trigger” acceleration, meaning the acquisition alone isn’t enough; you also need to be terminated or have your role significantly changed.
- Cash-out, where the acquirer pays you cash equal to the spread between your exercise price and the deal price (for options) or the full deal price (for RSUs), and the awards are cancelled.
- Cancellation of underwater options, where the exercise price is above the deal price, sometimes with no payment at all.
The specifics are in the merger agreement and your equity plan documents. If you have unvested awards and hear rumors of a deal, read those documents before closing. The window to act is short.
If You Think the Price Is Too Low
Most states let shareholders who disagree with the deal price demand a judicial determination of “fair value” and receive cash in that amount instead of the merger consideration. These are called appraisal rights or dissenter’s rights.
The procedure is strict. You must vote against the merger or abstain, file a written demand for appraisal before the shareholder vote, and then, after closing, petition a court to determine fair value. That number can come in higher, lower, or equal to the deal price. Courts often treat the deal price itself as the best evidence of fair value when the sales process was competitive and free of conflicts. When the process had problems, they may look to the unaffected market price before the announcement.
Appraisal proceedings are slow and expensive. Your capital is tied up for a year or longer, and the court’s number could land below the deal price. The path fits large institutional holders with resources to litigate and a real belief the deal was struck at a significant discount. Most individual investors who dislike the price are better off selling on the open market before closing.
If the Deal Falls Through
Announced deals don’t always close. Regulators can block them, shareholders can vote them down, or financing can collapse. If that happens, your shares stay exactly as they were. The company continues as an independent public company, and its stock usually drops back toward its pre-announcement price, sometimes below it if the failed deal has exposed deeper problems. Any elections you made in anticipation of closing, such as picking cash or stock, are unwound. You’re back to being a regular shareholder.