Same portfolio manager. Same holdings.
Same returns before fees. Wildly different costs to you. Most Canadians are in the most expensive series — and their advisor has no incentive to tell them.
Here's something most Canadians don't know: when you buy a mutual fund like "Fidelity Canadian Balanced," you're not buying one product. You're buying one of several series of that product, each with a different fee structure.
The investment is identical. Same manager.
Same stocks and bonds inside. Same performance before fees. The only difference is how much gets skimmed off the top — and who it goes to.
Most retail investors are in Series A. It's the most expensive option. And it's the default for a reason: it pays the advisor the most.
| Series | Typical MER | Trailer Fee | Who It's For | How to Access |
|---|---|---|---|---|
| Series A | 1.8–2.5% | 0.5–1.0% | Retail investors through advisors | Default — the one you get unless you ask |
| Series F | 0.8–1.5% | None | Fee-based advisor clients | Through fee-only or fee-based advisors |
| Series D | 1.2–1.8% | 0.25% | Self-directed investors | Bank discount brokerages (RBC DI, TD DI, etc.) |
| Series I | 0.5–1.0% | Negotiable | Institutional / high-net-worth | Typically $500K–$1M+ minimum |
| Series O | 0–0.5% | None | Very large institutional investors | Multi-million dollar minimums, negotiated |
| Series | MER | Annual Cost on $100K |
|---|---|---|
| Series A | 2.14% | $2,140 |
| Series F | 1.01% | $1,010 |
| Series I | ~0.75% | $750 |
Same fund. Series A costs you $1,130 more per year than Series F. On $100,000. Every year. Compounding against you.
| Series | MER | Annual Cost on $200K |
|---|---|---|
| Series A | 1.72% | $3,440 |
| Series D | 1.06% | $2,120 |
| Series F | 0.74% | $1,480 |
Switching from Series A to Series F saves $1,960/year on a $200K position. That's $164/month — for doing nothing different except paying less.
| Series | MER | Annual Cost on $150K |
|---|---|---|
| Series A | 2.30% | $3,450 |
| Series F | 1.10% | $1,650 |
$1,800/year difference. Over 20 years with compounding, that gap grows to roughly $55,000 in lost portfolio value.
This is where it gets ugly.
Some financial advisors charge clients a percentage-based advisory fee (typically 1–1.5% of assets) and put them in Series A mutual funds that pay the advisor a trailing commission (another 0.5–1.0%). The client pays both. The advisor collects both.
A real example from Reddit: an investor with $2 million was paying:
The fix was simple: switch to Series F (which strips the trailer) and keep the advisory relationship. Total cost dropped by $20,000 annually. Same fund. Same advice. Half the price.
How to check if you're being double-dipped: Ask your advisor two questions. (1) "Am I paying you a separate advisory fee?" (2) "Am I in Series A or Series F?" If the answers are "yes" and "Series A" respectively, you're being charged twice. This isn't illegal, but it's ethically questionable, and any good advisor should have you in Series F if you're paying them directly.
Series A is what you get when you walk into a bank branch or work with a commission-based advisor. The MER includes a trailing commission of 0.5–1.0% paid annually to your advisor for "ongoing service."
That trailing commission is the advisor's incentive to keep you in the fund. If you switch to an ETF, the advisor stops getting paid. If you switch to Series F, the advisor stops getting the trailer (though they may charge you a direct fee instead). This is why advisors rarely volunteer "hey, there's a cheaper version of the same fund."
Who should be in Series A: Essentially nobody who's reading this. If you've found this page, you're informed enough to be in Series D or F, or to skip mutual funds entirely and buy low-cost ETFs.
Series F strips out the trailing commission. The MER is typically 0.7–1.2% lower than Series A of the same fund. You access it through a fee-based advisor — someone who charges you directly (usually 0.5–1.5% of assets) rather than collecting embedded commissions.
The math usually works out. Even after paying your advisor's direct fee, Series F + advisory fee is typically cheaper than Series A alone. And the transparency is better — you see exactly what you're paying for advice.
How to access Series F:
If you're self-directed: You don't need Series F. You need Series D (at bank discount brokerages) or — better yet — just buy ETFs at 0.20% MER and skip the mutual fund entirely.
Series D is available through bank discount brokerages — RBC Direct Investing, TD Direct Investing, BMO InvestorLine, CIBC Investor's Edge, Scotia iTRADE. The MER is lower than Series A (reduced trailer, typically 0.25%) because no full-service advisor is involved.
It's a halfway measure. Better than Series A, still more expensive than ETFs. If you're already at a bank discount brokerage buying mutual funds, switching from Series A to Series D is a quick win. But if you're comfortable buying ETFs, Series D doesn't make much sense — you'd still be paying 1.2–1.8% MER when XEQT costs 0.20%.
Good use case for Series D: Automatic contributions. If you set up a $500/month automatic purchase into a Series D mutual fund, that's genuinely convenient — ETFs require manual market orders. For the automation-loving investor who doesn't want to log in and buy, Series D at 1.3% MER is a reasonable compromise. Not optimal, but not terrible.
Series I is for institutional and high-net-worth investors. Minimums typically start at $500,000 to $1 million. MERs are significantly lower — often under 1%.
Series O is the ultra-institutional tier. Pension funds, endowments, very large portfolios. MERs can be as low as 0.05%. Minimums are negotiated individually.
The uncomfortable truth: the fund manager's actual cost to manage your money is closer to Series O pricing. The difference between Series O and Series A is almost entirely distribution cost — paying advisors, paying the bank, marketing, and profit margin. You're subsidizing the sales channel.
For most retail investors, Series I and O are inaccessible. But knowing they exist is useful context: it shows just how much of your Series A MER goes to distribution rather than investment management.
Ask your advisor about Series F. If they offer fee-based accounts, the switch is straightforward — same fund, lower cost. If they refuse or get defensive, that tells you something about whose interests they're prioritizing.
Check if you're in Series A or Series D. Many bank brokerage accounts still default to Series A. Switching to Series D is a phone call. Better yet, switch to ETFs entirely and cut your costs by 80%+.
Skip the series system entirely. Open an account at Questrade or Wealthsimple, buy an all-in-one ETF like XEQT or VGRO, and pay 0.20-0.24% MER. No trailers, no series confusion, no advisor double-dip. Just a low-cost, globally diversified portfolio.
The series system exists to benefit the distribution network, not investors. The fact that the same investment can cost you 0.20% (ETF), 0.75% (Series I), or 2.30% (Series A) depending on where you buy it should make you angry. That anger is appropriate. Use it to make better choices with your money.
Plug in your fund's MER and see the real dollar impact over 10, 20, or 30 years. Then compare against a low-fee alternative.
Fee Calculator → Switch GuideThis article is for educational purposes and is not financial advice. MER figures are approximate and sourced from fund provider websites and Morningstar Canada as of early 2026. Verify current MERs in the fund's official Fund Facts document. Series availability varies by fund company and platform.