How Often Should You Rebalance Your Portfolio? (Canada, 2026)

The best rebalancing schedule is not the one that maximizes returns on a backtest, it is the one you will actually follow for 30 years. Research shows most Canadian investors are far better off with a simple annual review than with quarterly tinkering, and even a 5% drift threshold beats monthly rebalancing after taxes and time cost.

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The short answer

For most Canadian investors with a diversified ETF portfolio, rebalancing once a year works about as well as any other schedule, and better than most. If you want a second trigger, add a rule that says "also rebalance any time a holding drifts more than 5 percentage points from its target." That combination captures nearly all of the theoretical benefit of rebalancing while keeping trading costs, taxes, and your own time to a minimum.

What "rebalancing" actually means

Rebalancing is the act of returning your portfolio to its target allocation after market movements have pushed it off course. If you set a 60% stocks / 40% bonds target and a strong year in equities pushes you to 68% / 32%, rebalancing means selling some stock exposure (or directing new contributions into bonds) until you are back near 60/40.

It is a boring, mechanical process. That is the point. Rebalancing forces you to sell what has done well and buy what has lagged, which is the opposite of what most people naturally want to do. Over a long horizon, that discipline is more valuable than any single stock pick.

The three main approaches

Every rebalancing strategy is a variation on one of these three ideas. They differ in how often you look at the portfolio, and what triggers a trade when you do.

What the research says

Vanguard published one of the most-cited studies on this question (Best practices for portfolio rebalancing, 2015 and updated 2022). They tested every reasonable variation of calendar and threshold rebalancing on a 60/40 US portfolio from 1926 to 2020 and found:

• Annual rebalancing produced returns within about 0.05 percentage points of monthly rebalancing.
• Threshold rebalancing at 5% and 10% drift bounds produced similar returns to annual, with fewer transactions.
• The worst approach was rebalancing too frequently in a taxable account: excess trading costs and short-term capital gains erased any drift-control benefit.
• Doing nothing at all cost investors about 0.3 percentage points per year, mostly from unintended risk drift, not lower returns.

The Canadian tax angle nobody talks about

US research on rebalancing assumes tax-advantaged accounts. In Canada, the calculation is different depending on where the drift is happening. This is where "rebalance once a year" often fails: you probably should not rebalance every account the same way.

The 5-point threshold explained

A 5-point (or 5 percentage point) threshold means: if any asset class ends up more than 5 percentage points above or below its target weight, it triggers a rebalance. Some people use a 5% relative rule instead (rebalance if any holding is more than 5% away from its target as a percentage, e.g. a 60% target becomes a rebalance trigger at 57% or 63%). Both work, but absolute 5-point thresholds are simpler and more forgiving on smaller allocations.

Example: a target of 25% Canadian equity, 25% US equity, 25% international equity, 25% bonds. After a strong year in the S&P 500, US equity climbs to 32%. That is a 7-point drift, above the 5-point threshold, so you rebalance. If it had only climbed to 29%, you would leave it alone until the next annual review.

A concrete Canadian rebalancing schedule

What about accumulation vs decumulation?

If you are still contributing regularly (typical for Canadians in their 30s, 40s, and 50s), you have a natural rebalancing tool: automatic contributions. Directing each biweekly deposit to the currently underweight asset class handles the majority of drift without ever placing a sell order. This is called cash-flow rebalancing and it is what the Wealth Rebalancer app is designed to help you do.

In decumulation (retirement withdrawals), the same idea works in reverse: sell first from whichever asset class is currently overweight, and let that funding decision handle drift. Both approaches keep taxable events to a minimum.

When rebalancing more often actually helps

A few narrow cases justify more-frequent rebalancing than the annual-plus-5-point default:

• Highly volatile portfolios. If you hold single crypto assets or leveraged ETFs, they can breach thresholds within days. Monthly monitoring makes sense.
• Very large tax-sheltered accounts. If your RRSP is well over $500k, drift of 5 points can represent tens of thousands of dollars of risk. Some investors comfortable with more admin work choose a 3-point trigger.
• Post-major-market-moves. If markets drop 20% in a month, drift can compound quickly. It is fine to do an unscheduled rebalance after major dislocations, and often profitable.

How to check drift without doing math

The whole point of a portfolio rebalancing tool is to remove the manual arithmetic. Wealth Rebalancer lets you set target allocations for every account, then tells you exactly which ticker to buy or sell (and in which account) to close the gap. It also flags drift alerts when any holding crosses your chosen threshold, so you do not need to remember to check.

Even without a tool, you can do it in a spreadsheet: list each holding, current value, current weight, target weight, and difference. Anything with a difference above your threshold is a candidate to trim or top up.

Frequently asked questions