Flow Through Shares…Explained!

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I know it's early to be talking about Canadian tax saving strategies, but I thought I would talk about my experience with flow through shares since it doesn't seem like there's much information out there on this topic.


Besides, it's never too early to be talking about taxes!  To be honest, after spending hours of research on how to use flow-through shares to invest, I came to the conclusion that the average Canadian investor is way better sticking to something simple like a robo advisor, or a discount brokerage like Questrade, where they can invest in a basic couch potato portfolio of vanilla index ETFs.  If you are fortunate enough to have maxed out both your TFSA and RRSP, then you might consider flow through shares simply because the tax advantages would then start to become a little more pertinent.

So your big question might be, “What the heck are flow through shares? How do they “flow through”? … and who gave them that name anyways?”

I can't answer who came up with the name Flow Through shares, but I'll try and answer the former two questions.

Flow Through Shares

  • Basically an investment that has intense tax advantages (which means you get a big refund come tax refund time)
  • Primarily involves investments in the Oil and Gas Industry, the Mining Industry, and the Wind Power Industry
  • The investment is 100% tax deductible against your income
  • After a certain period (usually 1-2 years) your shares will roll over into a mutual fund which you can sell at any time
  • It turns fully taxable income into future tax advantaged capital gains
  • You have to look at the Marginal Tax Bracket you're in to see how much money you will get back come refund time
  • The higher your pay (the more taxes you pay), the more you'll get out of this

Here's how it works:
Flow Through Shares

Let's pretend you bought $10K worth of flow through shares.  Let's pretend you make the big bucks, and your Marginal Tax Bracket is 43.7%.

When you get your tax refund- if you work as an employee, you will get $4370 back, meaning you will have tax savings of $4370.

This works by multiplying $10,000 x 43.7%= $4370.

(It's just like an RRSP- whatever you contribute, you get a tax savings of your marginal tax bracket)

However, there's a catch.

When  you sell your flow through shares- let's assume for simplicity's sake that you neither make nor lose money on the $10,000 you invested, the adjusted cost base is $0- so the capital gain is considered $10,000.

So that tax you would have to pay when you sell is:

$10,000/2=$5000x 43.7%=$2185.

So you got $4370 back from the government, but when you sell, you have to pay a capital gains tax of $2185.  Therefore, the net income advantage is $2185.

Again, since I haven't done a PROS and CONS list in a long time, I'll do one now:


  • It's a nice tax shelter from the government (as we know, there are few tax shelters!)
  • If you're in a high tax bracket, it's one way to not have to be gauged in paying taxes
  • You help stimulate the Canadian economy, eh?


  • When you sell, the adjusted cost base is $0, so whatever you have is considered a capital gain
  • They can be super risky
  • They are often sold at a premium
  • It would be supportive of the oil and gas industry, mining.. I guess that's what Canada is all about, but if you have issues with it in terms of the environmental consequences of supporting exploration companies, then it might not be for you
  • Doing the taxes for flow through shares is complicated.  You'll probably need to get an accountant involved (which might incur extra costs)

My own experience:

Check out my post on my “other” investments.  As you know, initially in my personal finance journey, I was tax savings hungry and all I cared about was getting nice fat tax refund.  One shouldn't just jump into an investment for the tax refund (as I have now learned, lol).  I had bought $5000 worth of flow through shares in 2005.  I received approximately $1500 in a tax refund which I later reinvested into something else.  However, the current value of my flow through shares is $1800 (note that I had invested $3500 initially).  So if I were to sell it (which I plan to do soon), I would have to pay about $270 in capital gains tax.  So I had actually received $1,230 in a tax refund, were I to sell it at its current pricing.  So I am down a net of $1930.

So as you can see, flow through shares have not been good to me (hey that rhymed!).  I've had much better results using basic index funds and recently switching over to a “hands off” index investing service called Wealthsimple.

Tips on buying flow through shares:

  • It is recommended that Flow Through shares are not to exceed 5-10% of your portfolio since they're so risky
  • They can be bought buy your local financial adviser (mine kind of pushed them on me)
  • They are usually sold at certain times of the year (“offerings”) and are often sold at a premium
  • Try and time your flow through shares purchase well
  • Make sure you understand that your money won't be accessible for at least a year or two- so don't buy it if you're planning to save up for a large purchase
  • Don't be like me and just get it for the tax advantages (though very tempting, I know)

I hope that helps clarify the confusion!  Any readers out there have flow through shares in their portfolio?

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Young is a writer and former owner of Young and Thrifty and the main "twitter' behind Young and Thrifty's twitter account. She lives in Vancouver, BC and enjoys long walks on the beach, spending time with her anxious dog, and finding good deals. If you like what you read, consider signing up for email updates.


  1. Tax refund online on September 14, 2010 at 2:42 am

    I like your post about FLOW THROUGH SHARES PROS.

  2. Robert on September 14, 2010 at 7:17 am

    I’ve owned flow-through shares in 2007, 2008 and 2009. It’s more important than ever to understand what you own. Small-cap energy and mining companies are very volatile, and flow through shares performed very poorly in 2006 and 2007. Since 2008, they’ve performed much better, and I’ve actually made some good money.

    Having said that, I’m not sure you couldn’t do better by buying a small cap energy and materials fund. Also, if you’re getting big tax deductions, watch out for alternative minimum tax (AMT).

  3. young on September 14, 2010 at 7:52 am

    @Robert- Thanks for your input. Glad to hear that you have been successful holding flow through shares!

  4. SavingMentor on September 14, 2010 at 10:03 am

    Wow, you managed to scare me and intrigue me all at the same time right there!

    I’ll think I’ll stick to my ETF index investing strategy for now, but it’s definitely good to know of another tax sheltered investing strategy that is out there. This is the first I had heard of it.

  5. DividendLover on September 14, 2010 at 2:07 pm

    I know enough about flow through shares to stay away from them.

    This instrument is so risky the government is willing to let you write off your entire investment.

  6. the cynical investor on September 14, 2010 at 8:44 pm

    Invested in fts $5000 in an oil and gas company in 2009. Let’s see how this one will end up, bad I suppose as most of my investments 🙂

  7. young on September 14, 2010 at 6:52 pm

    @SavingMentor- lol sorry! Yeah, I personally am going to stay away from flow throughs for a while. Maybe until I get into the top tax bracket and I don’t have any write offs or something. =)

  8. young on September 14, 2010 at 6:53 pm

    @DividendLover- Yeah, They are certainly risky. I should have had a second thought when she classified the my risk profile as 100% risk. =(

  9. young on September 14, 2010 at 9:37 pm

    @the cynical investor- Well, at least you got some money back this year =) Things will still be rosy in 2010 because you probably got a beautiful tax refund. Then you just have to wait another year and cross your fingers. =P

  10. the cynical investor on September 24, 2010 at 8:55 pm

    This is company if anyone wonders

    WCSB Royalty Income Investments

  11. Jeffery Cloyd on November 30, 2010 at 12:21 pm

    I’m not sure if supporting the Canadian mining industry is a con. Energy must come from somewhere, and it’s better to get it from nearby democracies. I think that anything which encourages exploraration and drives down prices helps the overall world economy. Flow through shares definitely do this; though since they focus on exploration the biggest effects won’t go online for a number of years.

  12. Jake on February 3, 2011 at 2:28 pm

    There’s a big reason that people buy flow-through shares that wasn’t addressed here: charitable donations. Once you write off the donation, you are basically giving a charity a donation that you’ve only payed approximately 10% for (assuming you’re in the highest bracket)!

  13. young on February 10, 2011 at 6:50 pm

    @Jake- Thanks for mentioning that aspect of Flow Through shares. That’s another strategy to minimize the taxes you pay. 🙂

  14. Dwight on May 19, 2011 at 8:30 am

    Be careful with the strategy of donating the Flow Through Shares. The last budget presented by the Conservative party before the election reduced the benefit of donating flow through shares. It is likely to be part of the new budget and may be retroactive to when it was first presented.

  15. young on May 21, 2011 at 10:09 am

    @Dwight- Thanks! I noticed that in the new Conservative Party platform too. They stopped that loophole.

  16. Martin on April 15, 2012 at 5:56 am

    Where do you get the factor of 2 to divide your 10000 and get 5000 in order to calculate the tax one pays when they sells the flow through shares:

    “So that tax you would have to pay when you sell is:

    $10,000/2=$5000x 43.7%=$2185.”

    Can somebody get back to me on this? Thanks!

  17. Dwight on April 17, 2012 at 9:16 pm

    As mentioned in the article, you must pay capital gains tax on the full value of the investment when you redeem the shares. As capital gains tax is half that of regular income, the gain is divided by 2 then multiplied by your marginal tax rate. .

  18. Narayan Rathi on October 27, 2012 at 1:48 am

    Can u please explain me why have we divided 10000$ with 2 in the example when we are selling the shares we invested in .

  19. Mikey on November 17, 2012 at 2:42 am

    After tax ROI on flow through shares is approx 22%, which leaves a great deal of latitude for loss of your original input. The mistake is thinking of it as an investment (which it’s not) instead of a tax shelter (which it is) Yes, there are bad years, but there are also bad companies – a google search on “flow through shares Canada” will bring up discussions on which are which. My 10k last year is deflated by 60%, but I’m still clearing 1500 profit after taxes etc. Personally I’m doing 15k this year. Those people I know who do flow through do them every year. Ultimately depends on your risk comfort I suppose.

    Only beneficial to those making more than 55k a year though.

    Of note, If you borrow money for the share, the interest on that loan is tax deductible (I use my LOC)

  20. Subrata Debnath on January 8, 2015 at 11:28 am

    Just trying to understand how the net amount of $1930 was arrived at. If I understand correctly, it should be $1530 (current value of $1800 minus $270 being 50% of the tax at the same rate). Would appreciate if someone can explain what I am missing.

    Thanks !

  21. Kyle on January 8, 2015 at 10:33 pm

    Hey Subrata, “Young” doesn’t usually comment on articles any longer and I’m not as familar with the situation. Send us a comment on the comment form and we’ll forward it on.

  22. Rickerbucks on September 29, 2016 at 4:52 pm

    I myself do $10,000 every year and roll them over as they “mature” every two years. I have a few good years and I have a few bad years but overall, when rolling over and “topping up” to $10,000 every year seems to get me a LOT of tax breaks. Affectively I am almost using the same capital repeatedly to get the tax break. Note: I do have to declare capital gains when I sell so I have to watch out about managing my losses on other investments as well

  23. jcw on November 30, 2016 at 12:19 am

    I wonder if this would work. Buy certain FTS, say at the premium of 25% Claim your tax credit and immediately short the same number of shares in the market. After one or two years, use your FTS to cover your short position by placing the FTS into the account with shorted shared. If those positions cannot be in the place into the same account to cancel out one another, buy the shorted shares back and sell the FTS at the same time. Will this strategy work?

  24. Kyle on November 30, 2016 at 7:41 am

    Gotta be honest jcw, you’re in over my head at this point. Best to contact the CRA on that one.

  25. David on March 15, 2017 at 5:52 pm

    Really wish you didn’t need an expert tax accountant for these come time to cash them out. Supposedly, the ACB is nil correct? Well, what if the FT partnership sells shares and passes the capital gain onto you (box 151 of T5013)? Does the ACB increase to account for the fact that you paid the tax on the capital gain?

  26. david on March 15, 2017 at 6:09 pm

    If the flow through share manager sold shares in the partnership and passed the capital gains to the partner (as indicated on the T5013 box 151), does the ACB get adjusted? If not, doesn’t this result in double taxation?

  27. david on March 18, 2017 at 2:00 pm

    Okay, I am answering my own question for the benefit of others. The ACB is NOT zero when you sell. The ACB starts at zero (or close if not all the CEE is used). It then increases if the portfolio manager sells and passes on the capital gains, dividends, and interest to the partner (you). The fund company publishes the ACB at rollover. See qwestfunds.com/pdf/f…_cycle.pdf

  28. Savvy Investor on July 6, 2018 at 7:10 pm

    Flow-throughs have great returns on average but you must do them every year to get that average. I use short duration flow-throughs that are generally 10-12 months and roll over into a mutual fund trust that is far more tax favourable. This flow-through has averaged 18.59% since 2004. Remember this is the average. Some years could have an 8% loss and other years a 40% gain. I max out my RRSP contribution room every year so I turn to flow-throughs that don’t have a limit. I can write off any capital losses in my flow-through (Not in RRSP) I am taxed far more favorably in the flow-through compared to the RRSP. I don’t have to worry about clawbacks with flow-throughs as I do with RRSP’s. Would you rather have 1 million in accumulated RRSP or the same amount the mutual fund trust from the flow-through roll over. I believe too many investors focus on what they earn and not what they. More money in my jeans at the end of the day only makes good investment sense. Be a savvy investor and look at the bottom line. Someone mentioned Exchange Traded Funds and robo advisors. CAUTION is all I will say. Not all ETFs are created equal. Many use leverage which will accelerate losses in a market downturn. Happy investing all!!

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