What is a stock buyback?

A stock buyback (share repurchase) is when a company uses its cash to buy back its own shares from the open market. This reduces the total number of shares outstanding, which increases the ownership percentage and earnings per share for remaining shareholders. It is an alternative to paying dividends.

Are stock buybacks good for shareholders?

Generally yes. Buybacks can increase earnings per share, boost stock prices, and are more tax-efficient than dividends for Canadian investors in non-registered accounts. However, buybacks at overvalued prices destroy value. They are positive when the company buys below intrinsic value and has no better use for the cash.

Are stock buybacks taxed in Canada?

Unlike dividends, buybacks do not trigger a taxable event for shareholders who do not sell their shares. If you hold through a buyback, you pay no tax — your shares simply become a larger percentage of the company. If you sell shares back to the company, the proceeds may be treated as a deemed dividend or capital gain depending on the structure.

Stock Buybacks Explained (Canadian Guide)

How a Stock Buyback Works

Company announces a share repurchase program (e.g., “We will buy back up to $1 billion in shares over the next 12 months”)
Company buys its own shares on the open market at market price. Buybacks affect capital gains calculations if you sell during or after a repurchase period.
Purchased shares are cancelled (retired), reducing shares outstanding
Remaining shareholders each own a slightly larger percentage of the company

Impact on Key Metrics

Metric	Before Buyback	After Buyback	Effect
Shares outstanding	100 million	95 million	↓ 5%
Net income	$500 million	$500 million	No change
Earnings per share (EPS)	$5.00	$5.26	↑ 5.3%
Your ownership	0.001%	0.00105%	↑ 5.3%

Buybacks vs Dividends

Factor	Stock Buyback	Dividend
Cash to shareholders	Indirectly (higher share price)	Directly (cash payment)
Tax (non-registered)	No immediate tax if you hold	Taxed as dividend income
Tax (TFSA/RRSP)	No difference	No difference
Shareholder choice	No action needed — automatic	Receive cash, decide what to do
Flexibility for company	Can start/stop easily	Cutting dividends signals trouble
Signal to market	“Shares are undervalued”	“We generate stable cash flow”

Canadian Companies That Do Buybacks

Big Banks

Bank	Recent Buyback Program	Shares Bought Back	Approximate Value
Royal Bank (RY)	Normal Course Issuer Bid	~20 million shares/year	$3B+
TD Bank (TD)	Normal Course Issuer Bid	~15 million shares/year	$1.5B+
BMO (BMO)	Normal Course Issuer Bid	~10 million shares/year	$1.5B+
Scotiabank (BNS)	Normal Course Issuer Bid	~12 million shares/year	$1B+

Energy

Company	Recent Buyback	Approximate Value
Canadian Natural Resources (CNQ)	Aggressive buyback program	$4B+/year
Suncor (SU)	Accelerated program	$3B+/year
Cenovus (CVE)	Excess cash flow allocation	$1.5B+/year

Technology

Company	Recent Buyback	Note
Constellation Software (CSU)	Minimal	Prefers acquisitions
CGI Group (GIB.A)	Regular buybacks	Returns capital via buybacks instead of dividends
Shopify (SHOP)	None	Reinvests in growth

How Buybacks Are Regulated in Canada

Rule	Description
Normal Course Issuer Bid (NCIB)	TSX-regulated program allowing companies to buy back up to 5% of shares per year
TSX approval required	Company must apply and receive exchange approval
Daily volume limits	Cannot buy more than 25% of average daily volume on any given day
Disclosure	Must report monthly purchases to the exchange
Duration	Programs typically last 12 months, can be renewed

When Buybacks Create and Destroy Value

Scenario	Outcome
Company buys below intrinsic value	Creates value — remaining shareholders benefit
Company buys at fair value	Neutral — equivalent to dividend
Company buys at overvalued price	Destroys value — overpaying for shares
Company uses debt for buybacks	Risky — increases leverage
Company has better investment opportunities	Buyback is suboptimal — should invest in growth

Tax Implications for Canadian Investors

Account	Impact of Buyback
TFSA	No tax impact. Share value increases tax-free
RRSP	No tax impact. Grows tax-deferred
Non-registered (holding)	No immediate tax if you don’t sell. More tax-efficient than dividends
Non-registered (selling back)	Proceeds may be split between deemed dividend and capital gain
Compared to dividend	Buybacks defer tax until you sell, dividends are taxed immediately

How to Evaluate Buyback Programs

Signal	Good Sign	Bad Sign
Valuation	Buying when P/E is low relative to history	Buying at all-time highs just to boost EPS
Cash position	Buying from excess cash flow	Borrowing to fund buybacks
Alternatives	No higher-return investment opportunities	Neglecting R&D or debt repayment
Consistency	Steady buyback over market cycles	Aggressive buying only in good times
Track record	Shares outstanding declining year over year	Shares barely declining (offset by stock options)

Canada’’s 2% corporate buyback tax

In 2024, Canada introduced a 2% corporate surtax on stock buybacks for public corporations, matching a similar tax introduced in the US in 2023. Key details:

Feature	Details
Rate	2% on the value of shares repurchased net of shares issued in the year
Applies to	Canadian public corporations
Threshold	Net buybacks exceeding $1 million in the year
Effective date	January 1, 2024
Similar to	US 1% excise tax on buybacks (Inflation Reduction Act, 2022)

The stated government rationale was to discourage companies from returning capital through buybacks rather than investing in Canadian workers and infrastructure. Critics argue it makes Canada less competitive for capital investment and may shift corporate behaviour toward dividends rather than buybacks — which is less tax-efficient for investors (dividends are taxed immediately; buyback gains are only taxed when shares are sold).