So here’s something I’ve been thinking about a lot lately.
Most people, when they think about what their investments cost, think about one number. The advisory fee. You know the one. It’s the percentage your advisor charges, it shows up on your statement, somebody mentioned it once when you signed up, and that’s pretty much where the conversation ends.
But that’s not your real cost. Not even close.
Your real cost is the advisory fee PLUS the expense ratios on whatever funds you’re holding PLUS the trading costs that happen quietly in the background. And the thing nobody tells you is that those three add up, and then they keep adding up, year after year, on a bigger and bigger pile of money. That last part is the part that gets you.
Let me show you what I mean
Say you’ve got $100,000 and you leave it alone for 30 years. Let’s pretend the market does a steady 7% a year, because pretending is fun and it makes the math clean.
If you kept all 7%, you’d end up with about $761,000.
Now knock off 2% a year for total costs (advisory fee, fund expenses, the trading stuff, all of it). You’re now growing at 5%. After 30 years you’ve got about $432,000.
That’s a difference of roughly $329,000.
Read that again. The “2% fee” didn’t cost you 2% of your money. It cost you about 43% of where you could have ended up. On a hundred grand. The gap is bigger than the entire amount you started with.
How does 2% turn into a third of a million dollars? Compounding. Every dollar that leaves in fees is a dollar that doesn’t grow, and then the growth it would have produced doesn’t grow either, and so on down the line for three decades. It’s compounding working against you instead of for you.
And it’s sneaky, because no single piece looks scary
Here’s the trap. Each individual cost looks tiny and reasonable.
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The advisory fee? Maybe 1%. Fine.
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The funds you’re in? Oh, those have expense ratios too. Another 0.5% to 1% depending on what you own. Easy to forget those even exist.
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Trading costs and the little frictions inside the funds? Quietly humming along in the background where you’ll never get a bill for them.
None of those numbers makes you flinch on its own. Stack them up though, and you’re suddenly losing a meaningful chunk of your return every single year. Then compounding takes that chunk and multiplies it across your whole investing life.
I’m not telling you fees are evil
I want to be straight with you here, because I think a lot of “fees are ripping you off!” content online is kind of lazy.
Good advice is worth paying for. Funds cost something to run. Nobody’s working for free, and honestly you don’t want the person managing your money to be doing it for free either. Fees are not the enemy.
What I’m saying is way simpler than that: you should know your total number. Not the headline advisory fee. The whole thing, all-in, every layer. Because that’s the number that’s actually compounding against your future, and most folks have never once added it all up.
So here’s the homework, and it’s easy
Go find these three things:
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What’s your advisory fee? You probably know this one already.
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What are the expense ratios on your funds? Pull up your holdings and look. It’s listed. Takes five minutes.
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What are the trading or transaction costs? Ask. If the answer is vague or you get a weird pause, that pause is information.
Add them together. That’s your real cost of investing. Now you know the number that’s been quietly working against your compounding this whole time.
You might look at it and go, “yeah, that’s totally fair for what I’m getting.” Great! Honestly, great. That’s a fine answer.
But you should be the one who gets to decide that. Not the statement that only shows you one of the three numbers and hopes you don’t go looking for the other two.