Portfolio rebalancing — complete guide for Canadians

Why rebalance? The silent risk drift problem

Consider a simple target portfolio: 80% global equities, 20% bonds. After two strong market years, equities climb to 88% of the portfolio. You now carry a risk profile you never chose — and you may not discover it until the next correction.

Rebalancing fixes this drift. It means returning each asset class to its target weight after market movements have shifted the mix. Without rebalancing, an 80/20 portfolio can quietly become 95/5 over several bull-market years — with substantially greater downside exposure than you originally planned for.

Second benefit: rebalancing enforces a buy-low discipline. When you restore your target, you trim (or underweight new contributions to) what has risen and add to what has lagged. This is not market timing — it is simply following a rule set when you were thinking clearly, not in the heat of a market move.

Calendar rebalancing vs threshold rebalancing

There are two main frameworks for deciding when to rebalance.

Calendar rebalancing

You rebalance on a fixed schedule — once a year (often in January or at RRSP season), twice a year, or whenever you make your annual RRSP contribution. Simple to implement; no ongoing monitoring needed. The drawback: if markets move dramatically between dates, the portfolio can stay significantly off-target for months.

Threshold rebalancing (drift bands)

You rebalance only when an asset class drifts a set percentage from its target — typically 5 percentage points. Example: target 80% stocks — act only if the share falls below 75% or rises above 85%. This responds better to volatile markets but requires periodic monitoring of your actual allocation.

Combined approach

The most common practice among Canadian passive investors: check allocation once a year and rebalance only if any asset has drifted more than 5%. You get the simplicity of a calendar with the relevance of a threshold — and a minimum of transactions.

Rebalancing with new contributions — the no-sell method

The least costly way to rebalance — both in taxes and transaction fees — is to direct new contributions toward the underweight asset class. If your target is 80/20 and bonds have drifted down to 15%, put your next deposit entirely into bonds until the target is restored.

This approach is especially valuable in a non-registered account: no sale means no realized capital gain means no tax. It works equally well inside a TFSA or RRSP where there is no immediate tax impact anyway, but it still avoids unnecessary transaction costs.

For investors in accumulation mode who contribute regularly — monthly, bi-weekly, with every paycheque — this method alone can keep a portfolio in balance without ever selling a single unit.

Canadian tax considerations

Registered accounts: RRSP and TFSA

Inside an RRSP or a TFSA, there is no tax consequence when you sell an asset to rebalance. You can trim equities that have risen and buy bonds without triggering a taxable capital gain. This is why registered accounts are the ideal venue for active rebalancing when your overall portfolio spans multiple account types.

Non-registered accounts: tax awareness required

In a non-registered account, every sale of an appreciated asset generates a taxable capital gain — included at 50% in your income for individuals. Best practices:

• Direct new cash contributions to the underweight asset rather than selling the overweight one
• Use dividends and ETF distributions to buy whatever is below target
• If a sale is unavoidable, pair it with existing capital losses to offset the gain (tax-loss harvesting)
• If close to year-end, consider delaying the sale to January to defer the tax liability by one year

Also be mindful with your TFSA: withdrawal room is not restored until the following calendar year. Withdrawing and re-contributing in the same year can push you over your limit. Our guide on the Couch Potato portfolio covers how to organize accounts efficiently.

All-in-one ETFs: automatic rebalancing built in

For investors who prefer never to rebalance manually, Canadian all-in-one ETFs are an elegant solution. Funds like XEQT (100% equities), VGRO (80/20), XBAL (60/40), or VCNS (40/60) maintain their target allocation continuously through internal daily rebalancing managed by the fund provider.

The investor does nothing. New contributions land immediately in the correct proportions. When markets drift the allocation, the fund rebalances internally — without you needing to act, and without direct tax friction on your end.

This format is particularly well suited to beginners, busy investors, or anyone wanting to eliminate behavioural bias (the temptation to skip rebalancing during a downturn). For a full breakdown of these funds, see our comparison of XEQT vs VEQT vs VFV.

One caveat: if your portfolio is spread across an RRSP, TFSA, and non-registered account, holding one all-in-one ETF in each account may be less tax-efficient than an asset-location strategy (bonds in the RRSP, equities in non-registered). For most investors, however, the simplicity more than compensates.

Age-based allocation and rebalancing

Rebalancing is inseparable from your target allocation. If you deliberately shift that target over time — for instance moving gradually from 90% equities toward 70% as retirement approaches — each rebalancing event is also an opportunity to update the allocation itself. Our guide on portfolio allocation by age covers decade-by-decade benchmarks.

Common mistakes to avoid

• Rebalancing too often in a non-registered account: every sale can trigger a capital gain. Bi-monthly rebalancing can be fiscally very costly.
• Never rebalancing at all: letting your allocation drift for years means accepting a risk level you did not consciously choose.
• Ignoring transaction costs: if your broker charges $5–10 per trade, rebalancing a small portfolio is proportionally expensive. New contributions cost nothing.
• Panic-selling and calling it rebalancing: rebalancing after a correction means buying what has fallen, not selling everything. If your instinct is to exit, that is a signal your allocation was too aggressive for your psychological profile.
• Forgetting automatic distributions: bond ETFs like those covered in our guide to Canadian bond ETFs pay regular distributions — reinvesting them intelligently can keep the portfolio in balance on its own.
• Confusing rebalancing with market timing: rebalancing is not a prediction that stocks will fall. It is simply maintaining the risk level you chose when thinking clearly.

Quick-reference rules

• Check your allocation once or twice a year
• Rebalance if drift exceeds 5 percentage points from target
• Use new cash contributions to rebalance first — especially in non-registered
• Do active rebalancing (with sales) in your registered accounts first
• In non-registered, pair sales with capital losses where possible
• If you do not want to manage this: one all-in-one ETF does all the work

For a complete overview of building a Canadian passive portfolio, see our guide to the Couch Potato portfolio Canada.

Frequently Asked Questions