How to open a margin account IBKR (Interactive Brokers)

In my last article, I explained that I had put money that was not mine in a real estate investment in Switzerland.

As you can imagine, that means I'm using what's called leverage by growing more money than I have.

I can already hear you saying that I told you never to do that, and that I would never do it myself...

You are so right! :)

Except that as usual, when you learn the mechanics behind what scares you (like investing in the stock market for the first time), the emotional side slowly disappears in favor of the rational.

This is what happened with my first margin loan at Interactive Brokers.

Back in January 2021

One of the only blogs I still read about the FIRE (Financial Independence Retire Early) topic is Mr. Money Mustache's. I think he's cool because he's very critical of every topic he writes about, and transparent as I like about his own shortcomings.

He published an article in January about margin loans at Interactive Brokers, which introduced me to a new world of investment possibilities. At first I read it thinking "Ah, interesting that MMM is playing with this, then I archived the article, because it seemed complex and not necessary given my situation". Then while discussing real estate with a friend, I saw the potential and got back into it.

I then checked out other sites in the field to see what was being practiced in the Mustachian community regarding borrowing money to invest.

How does a margin loan work?

Basically, a margin loan is nothing more than a standard loan where you borrow money from a broker.

If we take an example with my online broker Interactive Brokers (aka IBKR), it goes like this:

  • You have CHF 300'000 invested in the stock market at IBKR
  • Since they have "the control" on these assets, they allow you to borrow 50% of this amount, i.e. CHF 150'000 (this limit is called "Reg T margin")
  • So let's say you borrow CHF 150'000 by transferring it from your Interactive account to your bank account
  • Three months later, a huge stock market crash occurs, and your CHF 300'000 invested in the stock market is worth only CHF 200'000. Then, IBKR will sell CHF 50'000 of your shares automatically so that your remaining loan will follow the "Regulation T" (i.e. your assets of CHF 200'000 only allow you to have a loan of CHF 100'000 maximum)

Basically, this margin account toy can quickly become financially dangerous. Because in addition to being able to lose everything faster, you can also get into debt faster in case of a huge crash.

On the other hand, if you use it carefully and prudently, this tool can allow you to generate cash from money that is not yours.

My Mustachian margin loan limit

Reading various articles on the subject, and understanding that it is very unlikely (i.e. it can still happen!) that a stock market crash will divide my assets' value by 4, I set myself a conservative maximum margin lending limit of 25% of my stock market assets.

That way, the worst that can happen is that I end up with CHF 0 in stock market assets. But no debt.

Is this a dangerous game? Yes, clearly. Can I sleep soundly with this limit? Yes. If that's not your case, you can close this page and keep your IBKR account in "Cash" mode (i.e. no margin).

What is a margin loan for as a Mustachian?

I, for one, keep this financial tool for the following things:

  1. It gives me a cushion in case our fantastic car fails overnight, or for any other big unexpected expense, without having to keep a huge pile of cash in the bank that doesn't earn me anything
  2. Likewise, I don't bother to keep a little cash under my elbow to take advantage of the sales during the next stock market crash (unpredictable by nature)

Thanks to the margin loan, I can always be invested in the stock market to the maximum of my capacity. So my money works even harder for me.

And so it was thanks to this tool that I was able to seize the opportunity to invest in Swiss real estate last summer. A few clicks and I had CHF 70'000 in my Swiss bank account!

This allows me to collect CHF 3'850 per year (7% guaranteed return - the 1.5% loan interest from IBKR) without having to resell any of my ETFs.

How much does an IBKR margin loan cost?

An important point: this leverage is not free! But the price at IBKR is unbeatable compared to other online brokers.

Below CHF 90'000, it costs you ~1.5% annual interest. And from CHF 90'000 to CHF 900'000, it's only ~1%.

And the best part is that it only takes you 5 minutes online to get such a loan. No forms or bank advisors to satisfy. The process is as easy as pie, and fully automated.

How do you turn a "Cash" account into a "Margin" account at Interactive Brokers?

And here's how you can turn your Interactive Brokers account into a cash provider for opportunities one can't miss:

Interactive Brokers Margin account (1/8)

Interactive Brokers Margin account (2/8)

Interactive Brokers Margin account (3/8)

Interactive Brokers Margin account (4/8)

Interactive Brokers Margin account (5/8)

Interactive Brokers Margin account (6/8)

Interactive Brokers Margin account (7/8)

Interactive Brokers Margin account (8/8)

Then I simply made a withdrawal from IBKR to my Swiss private bank account. The funds were available the very next day.

And this is how my margin loan appears in IBKR:

Margin loan in the Interactive Brokers mobile application

You who are reading this, and who know a lot more about margin lending than I do, is my plan completely flawed? Would you advise me something else than what I described? (in a constructive way please, as usual on this blog)

PS: I'm telling you one last time that you really need to understand what you're doing before you start such adventures with your money. It's said!


"Your articles are great MP, but there are so many that I don't know where to start to achieve my financial freedom. What would you recommend?"

After 1 year of deep work, here is my answer condensed in a single work:

 4.53 (135 ratings)


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