Best Bond ETFs in Canada for 2026: ZAG, VAB, and XBB Compared
Bonds reduce portfolio volatility, provide income, and tend to hold their value when equity markets fall. For most Canadian investors, the right bond exposure is a single low-cost aggregate bond ETF held in their RRSP or TFSA - but choosing among ZAG, VAB, and XBB takes a minute of thought.
Why hold bond ETFs?
Bonds serve two purposes in a portfolio: they reduce volatility (bonds typically fall less than stocks in a downturn) and they generate income (bond ETFs pay regular interest distributions). Crucially, in severe market crashes, high-quality government bonds often rise in price as investors flee to safety - partially offsetting equity losses and giving you something to sell if you need to rebalance.
For investors using all-in-one ETFs like XGRO or XBAL, bonds are already included. Bond ETFs are most relevant if you're building a custom multi-fund portfolio or want to adjust your bond weighting independently.
The three main aggregate bond ETFs compared
| ETF | Provider | MER | Approx. yield | Duration | # holdings |
|---|---|---|---|---|---|
| ZAG | BMO | 0.09% | ~3.8-4.2% | ~7-8 years | 1,500+ |
| VAB | Vanguard | 0.09% | ~3.8-4.2% | ~7-8 years | 900+ |
| XBB | iShares | 0.10% | ~3.8-4.2% | ~7-8 years | 1,200+ |
ZAG vs VAB: are they actually different?
ZAG and VAB both track the broad Canadian investment-grade bond market, including government bonds (federal and provincial) and investment-grade corporate bonds. The underlying indices differ slightly (FTSE Canada vs FTSE Canada Universe), but in practice the holdings, duration, and yield are nearly identical.
ZAG (BMO)
- Tracks FTSE Canada Universe Bond Index
- Largest bond ETF in Canada by AUM
- Monthly distributions
- MER 0.09%
- Slightly broader holdings universe
VAB (Vanguard)
- Tracks Bloomberg Canadian Aggregate Bond Index
- Second-largest Canadian bond ETF
- Monthly distributions
- MER 0.09%
- Widely used in model portfolios (e.g. Vanguard's VBAL/VGRO)
Short-term bond ETFs: VSB and ZSB
Short-term bond ETFs hold bonds maturing in 1-5 years rather than the full market (which averages 7-10 years). They have lower duration, meaning they are less sensitive to interest rate changes - their prices fall less when rates rise.
| ETF | Type | MER | Duration | Best for |
|---|---|---|---|---|
| VSB | Short-term (1-5yr) | 0.11% | ~2.5 years | Rate-sensitive investors, capital preservation |
| ZSB | Short-term (1-5yr) | 0.10% | ~2.5 years | Same use case as VSB |
| ZAG/VAB/XBB | Aggregate (all maturities) | 0.09% | ~7-8 years | Most investors' default bond allocation |
Interest rate risk: what duration means in practice
Duration measures how sensitive a bond (or bond fund) is to interest rate changes. A duration of 7 means a 1% rise in interest rates causes roughly a 7% drop in the ETF's price. For a short-term bond ETF with duration 2.5, the same 1% rate rise causes only a ~2.5% price drop.
Where to hold bond ETFs for maximum tax efficiency
Bond interest distributions are taxed as ordinary income - the least favourable tax treatment for investments. This makes bonds one of the best candidates for a tax-sheltered account.
| Account | Bond ETF tax treatment | Recommendation |
|---|---|---|
| RRSP | Distributions sheltered until withdrawal | Excellent - bonds work very well here |
| TFSA | Distributions completely tax-free | Excellent - use if RRSP is full |
| Non-registered | Distributions taxed as ordinary income | Avoid if possible; place equities here instead |
Frequently asked questions
What is the best bond ETF in Canada?
ZAG (BMO, 0.09%), VAB (Vanguard, 0.09%), and XBB (iShares, 0.10%) are all excellent aggregate Canadian bond ETFs. The choice between them is negligible. Pick the one that matches your existing ETF provider for portfolio consistency, or whichever your brokerage lists first.
Is ZAG or VAB better?
Neither is meaningfully better. Both track the broad Canadian investment-grade bond market at 0.09% MER, pay monthly distributions, and have nearly identical holdings and duration. Long-term performance will be virtually the same. Investors who use Vanguard equity ETFs typically pair with VAB; those who use BMO ETFs use ZAG.
Should I hold bond ETFs in my TFSA or RRSP?
Bond interest is taxed as ordinary income in a non-registered account, making it inefficient there. Hold bonds in your RRSP or TFSA to shelter the distributions. If you have to choose between accounts, the RRSP is slightly preferred for bonds because US-listed equity ETFs can be held there tax-free (under the Canada-US treaty), while bonds are better served by the RRSP sheltering.
What is the current yield on ZAG in 2026?
ZAG's yield fluctuates with interest rates and is approximately 3.8-4.2% in 2026. The exact trailing yield is available on the BMO ETF product page. Note that yield alone doesn't determine total return - price changes also matter for bond ETF investors.