What Is a Share Buyback, and Should You Take the Offer?
Why an off-market buyback can offer less than the market price and still be worth taking, why that depends entirely on your tax position, and why you never have to say yes.
11 min read
Most people meet this topic the day an envelope arrives offering to buy their shares back, often at less than the price on the screen. That looks like a bad deal and sometimes is, but not always, and the reason it depends has almost nothing to do with the company and almost everything to do with your own tax position.
This article is general information only, not personal financial or tax advice, and it does not recommend accepting or declining any offer. Tax rules change. Consider your own circumstances and speak to a registered tax agent if the amount matters to you.
Quick answer
A buyback is a company purchasing its own shares and cancelling them, so fewer shares exist and each remaining one represents a bigger slice. On the ASX it happens two ways: quietly through the market, or as a formal offer sent to you. Only the second one asks you to decide, and you are free to ignore it.
In this guide
- โThe two structures, and which one actually involves you
- โWhy an offer below market price is not automatically a bad offer
- โHow to read the signal management is sending, and when to discount it
- โThe difference between creating value and moving a ratio
๐ What a buyback actually is
The company spends its own cash buying its own shares, then cancels them. Those shares stop existing. The total on issue falls, and everyone still holding owns a marginally larger piece of the same business.
It sits alongside dividends as one of the two main ways a company hands money back to shareholders. The difference is that a dividend reaches everyone automatically, while a buyback only reaches the people who sell.
๐ฏ Why companies do them
- Management thinks the shares are cheap. Buying below what the business is worth benefits everyone who stays.
- There is cash and nothing better to do with it. No compelling projects or acquisitions, so the money goes back rather than sitting idle.
- It suits some shareholdersโ tax positions better than a dividend, and it lets them choose whether to take part.
- It lifts earnings per share. Same profit, fewer shares, higher number.
๐ฏ The essential: That last one deserves suspicion. Executive pay is often tied to earnings per share targets, and a buyback raises that figure without the business earning a dollar more. A stated reason and the real reason are not always the same.
โ๏ธ On-market versus off-market
| On-market | Off-market | |
|---|---|---|
| How it happens | The company buys through the exchange | A formal offer is sent to shareholders |
| Price | Whatever the market is at the time | Fixed, or within a range, often below market |
| Your involvement | None, unless you happen to sell | You decide whether to tender |
| Structure | An ordinary sale | Split into capital and dividend components |
ASIC regulates both, sets out the rules in its guidance on share buy-backs, and requires companies to notify it. Some buybacks also need shareholder approval depending on their scale.
๐งฎ Why an offer can be below market price
This is the part that confuses people, and it is worth getting right before you dismiss an offer out of hand.
An off-market buyback price is divided into a capital component, assessed against your cost base under the capital gains rules, and a dividend component, which is assessable income and may carry franking credits.
Someone paying little or no tax can get a great deal more out of franking credits than someone on a high marginal rate. That is why these offers are pitched below market price and still attract takers: the discount is meant to be more than offset, for the right holder.
The tax treatment of off-market buybacks by listed companies has been changed by legislation, so older explanations circulating online may describe a regime that no longer applies. Check the current ATO position and the offer documents rather than assuming. If franking is unfamiliar, our guide to franking credits covers the mechanics.
๐ก What it signals, and when it does not
The standard reading is bullish: management knows the business best and is saying the shares are worth buying. That is a real signal, but it is not a reliable one, for four reasons.
- Management can simply be wrong. Companies have bought heavily at prices that later looked expensive. Conviction is not accuracy.
- The motive may be the ratio, not the valuation. See the earnings per share point above.
- Borrowing to buy back is a different proposition. Funded from surplus cash it is one thing. Funded by debt it adds leverage and risk.
- It is a softer commitment than a dividend. A buyback can be paused without the market reading it as distress, which is precisely why it says less.
๐ Does it create value or just move a number?
Fewer shares divided into the same profit produces a higher figure per share. That is arithmetic, not achievement.
Genuine value only appears if the company bought its own shares for less than they were worth. Pay too much and the cash is gone and the remaining holders are worse off. There is also an opportunity cost every time: the same money could have gone into the business, an acquisition, or paying down debt.
The practical habit is to look at total profit alongside earnings per share. A company whose earnings per share keeps rising while total profit stagnates is telling you something the headline number is hiding.
โ๏ธ An offer arrived. Now what?
- You can do nothing. The offer lapses and your holding is unchanged. That is a legitimate answer.
- Your tax position decides most of it. The value of the franked component depends on your rate and your ability to use credits, which is why no article can answer this for you.
- Compare against simply selling. Work out what the market would pay you today versus what the offer delivers after tax.
- Tendering is a disposal, so the usual capital gains consequences apply, including how long you have held the shares.
- Get advice if the holding is large. The offer documents say so too, and on this one they are not just covering themselves.
โ Frequently asked questions
Do I have to participate in a buyback?+
No. An off-market buyback is an invitation, not an instruction. Do nothing and you stay a shareholder on exactly the terms you had before. With an on-market buyback there is nothing to decide at all, because the company simply buys from whoever happens to be selling on the exchange.
What happens to the shares the company buys back?+
They are cancelled. They do not sit in a vault to be reissued later. The number of shares on issue permanently falls, so everyone who stayed owns a slightly larger share of the same business.
Why would an off-market offer be below the market price?+
Because the headline price is not the whole return. An off-market buyback splits the amount into a capital component and a dividend component, and the dividend part can carry franking credits. For a shareholder who can use those credits fully, the after tax outcome can beat the discount. For someone on a high marginal rate it may not.
Is a buyback good news for the share price?+
Not automatically. It can be genuinely good if the company is buying below what the business is worth and has nothing better to do with the cash. It can be poor if it overpays, borrows to fund it, or uses it to flatter earnings per share. The announcement alone tells you very little.
How is a buyback different from a dividend?+
A dividend goes to every shareholder whether they want it or not. A buyback only reaches those who sell, so it is optional. Dividends are also a harder commitment: cutting one is read as distress, while a buyback can be quietly paused. That flexibility suits companies, which is worth remembering when reading the signal.
How is the tax treated?+
The capital component is handled under the normal capital gains rules against your cost base, and the dividend component is assessable income that may carry franking credits. The treatment of off-market buybacks by listed companies has been changed by legislation, so do not rely on older explanations you find online. Check the current ATO position and the offer documents, and get advice if the amount is meaningful.
๐ Sources
- Company share buy-backs, Australian Securities and Investments Commission.
- Regulatory Guide 110: Share buy-backs, Australian Securities and Investments Commission.
- Imputation, Australian Taxation Office, on how franking credits work.
- How to buy and sell shares, Moneysmart, Australian Securities and Investments Commission.
๐ Recommended reading
Motivated Money
Peter Thornhill

Motivated Money
Peter Thornhill's cult-favourite case for living off fully franked dividends instead of chasing capital gains. A calm, contrarian Aussie take that has quietly built a big following of long-term investors.
One Up On Wall Street
Peter Lynch

One Up On Wall Street
Peter Lynch ran one of the greatest funds ever, and his big idea is simple: invest in what you actually understand from everyday life. A timeless nudge to do your homework before you buy a single share.
Some links above are affiliate links. If you buy through them, Snowball Invest may earn a small commission at no extra cost to you. We only recommend books we'd suggest anyway.
SnowLetter
Australia's money news and our best reads, once a week.
Was this article useful?
Put it to your own numbers
Every calculator runs entirely in your browser, with nothing stored. See what these numbers look like for your own situation.
Explore the calculators โGeneral information only. This article is educational and does not constitute personal financial advice. It does not account for your circumstances. Consider your own situation and seek advice from a licensed adviser before acting. Read our full disclaimer.
Timothy Hirou Gaschereau
Founder of Snowball Invest, not a financial adviser.
I write about what I'm learning myself, because nobody ever taught us how to take control of our own money. It's a skill, not a mystery, and it's never too late to learn it. The best day to start was yesterday, the second best is today.
LinkedIn โRelated articles

VAS vs A200: Two Ways to Own the Australian Market
VAS holds 325 companies, A200 holds 200, and their top ten are nearly identical. What actually separates the two big Australian equity ETFs.

ASX Settlement: What T+2 Actually Means
Sell on Wednesday and the cash is not yours on Wednesday. How the two business days are counted, why it decides who gets the dividend, and whether T+1 is coming.

How to Buy CBA Shares (and the Exposure You Already Have)
The mechanics take ten minutes. The part worth reading is why you may already own plenty of CBA through your ETF and your super without realising it.

