Using Your Home To Squish The Taxperson With Income Splitting

We have previously discussed trying to build up a lower income spouse’s personal investment account as one of many strategies for income splitting. Intermediate-term income splitting may be useful if you require savings beyond what can be accommodated by your RRSPs, TFSAs, and Corporate accounts. That investment overflow necessitates a “cash” or “taxable” investment account as part of your plan.

To make a taxable or cash account tax efficient:

Consider aiming tax-favored investments to the taxable account.

Capital gains oriented equities or eligible dividend generating Canadian equities get favorable tax treatment. However, that should not supplant the primary consideration of using your goal asset allocation for your overall portfolio.

If you have a spouse with a much lower income, it is better for the investment income to be taxed in their hands.

As illustrated previously in The Sim Lab, building that account in a lower income spouse’s hands can result in a larger account over the years due to less tax drag on the compound growth.

Plus, it can be more tax efficient to access the money via a lower-taxed spouse – particularly if you retire early. 

We examined that in the context of using spousal loans in the cases of a high income physician and a high income employee.

Using leverage (a loan) to invest can also be tax efficient for a taxable account.

In this post, we are going to examine a different way of leveraging the investment income growth of a lower income spouse using an external source of money. Specifically, a bank loan with your family home as collateral. That loan would be via a mortgage or home equity line of credit (HELOC).

This can have the benefit of growing a lower income spouse’s income generation by releasing some of the money trapped in the equity of your home and putting it to work for you.

It can also make that portion of your mortgage or HELOC tax deductible

There are a number of factors to weigh when considering using a home equity loan to help grow a lower income spouse’s investment income:

  • Is a larger taxable investment account helpful to your overall wealth building plan, as discussed in the above intro to this post? If not, why bother.
  • If so, then are you willing to accept the risks of using leverage to increase it?
  • How do you avoid triggering the attribution rules and having the money taxed in the higher income spouse’s hands?
  • How does buy investments that allow your spouse to deduct the loan interest as an expense fit into your overall portfolio asset allocation plan?

The Risk/Benefit Analysis of Using Leverage

Leverage is borrowing money to invest with the hope of increasing your returns. It is a two-edged sword.

If you borrow money that generates more income than the cost of the interest, then you now have extra money that you wouldn’t have had otherwise. Conversely, if you invest and lose money or make less than the interest, then you end up paying more than you generate. Plus, you still have the debt to deal with.

Leverage magnifies losses or gains. So, it is important to consider the chances that you will end up ahead against the risks of failure.

Above: Deep Sea Fly Fishing with my son on vacation. Everyone’s risk tolerance is different!

Factors to consider in your risk/benefit analysis of using an investment loan:

Other debts that you may have.

If you have a high-interest loan, then it is usually better to pay that off first. It is like a guaranteed return of whatever the interest rate is. Plus, it is tax-free.

The interest rate of your mortgage or home equity loan. 

You need to be able to get returns beyond the interest costs to make a profit. For example, in the current ultra-low interest rate environment, you can get a five year fixed rate mortgage for around 3%/yr. That is pretty easy to beat with investments and is predictable. If you use a variable interest rate loan, then you can get a slightly better interest rate now. However, be aware that it may rise over the next few years.

Your expected rate of return.

If using a taxable account, you are likely going to invest in equities or equity-based ETFs to earn tax efficient capital gains and eligible dividends. An average historical return on the TSX from 1970 to 2015 was ~10%/yr. However, past performance does not predict the future. Further, that is an average return over time. It can fluctuate wildly on a year to year basis.

Can you stomach the volatility in your investments when you own them with borrowed money?

Most of us investing have a long-term view. We acknowledge that our portfolio will fluctuate in value in the short-term. With a portfolio comprising of a mixture of fixed income and equities, the fixed-income portion  (like bonds) smooths volatility. However, the equity part of that portfolio is still volatile.

leveraged investing
Leverage can help the emotional investor beast escape its bonds.

Fear is one of the most powerful drives hardwired into our DNA. Right up there with food, sleep, and reproductive urges. All necessary for the continuation of the species. If you give in to fear and sell when your taxable account is down and you are leveraged, then you make that paper loss into a real one. And you still owe the money! You need to be honest with yourself about your intestinal fortitude.

If you get too aggressive and provoke your emotional investor beast, it can smash your portfolio through behavioral mistakes. Using leverage is like giving the beast a hammer. No problem, if you don’t make him/her angry. But if you do, watch out.

Can you pay the money back if you need to?

This is an important consideration. What if you lost all of the money invested? Could you still pay it back over time? Of course, it would suck losing the money, but if you can survive losing it, then that is a mental game changer. You don’t want to feel like you need to sell your investments when they are dropping to pay back the loan. That feeling is like blood in the water to the fear sharks swimming around your primitive brain.

The other practical reason is that you could be forced to pay back the money. If the loan is a mortgage, you could qualify for less mortgage when you renew due to higher rates at that time or new qualifying rules. If the loan is a home equity line of credit, then it is a demand loan. That means that the bank can ask for it to be repaid at any time, for any reason. You don’t want to be put in a position where you are forced to liquidate assets at a bad time to pay back the loan.

Avoiding Triggering The Attribution Rules While Using A Loan

A hobbit burglar inadvertently wakes the dragon while trying to pilfer from his hoard to get money to buy more Shire sweetleaf to smoke.

When helping a lower income mate build their hoard so that you both can keep those pesky hobbit burglars from nibbling away at your treasure, you need to ensure that you don’t run afoul of the dreaded attribution rules. If you are not careful, the attribution rules are the weapon that the CRA will use to slay your plans and tax the investment income in the higher income spouse’s hands.

The attribution rules would apply to any income from a loan obtained solely on the credit of the higher income spouse (as an individual). However, a mortgage or home equity line of credit is a bit more complex because it is secured against the family home (as an asset).

There was a CRA interpretive bulletin issued on July 20, 2009 addressing this issue.

Old bulletins are no longer on the CRA website. There is a copy here and a good summary here. I have not been able to find anything more recent. However, I did consult with my accountant prior to using this strategy in 2016. He said that it was still totally legit at the time. Notwithstanding, I suggest that you consult with your CPA before using this technique to ensure that you follow all the rules.

Highlights of the CRA stance on attribution for home equity loans:

  • When a couple purchases a home with joint ownership. If one spouse does not contribute any capital to the purchase, then a transfer of value of that property is considered to be made to that spouse at that time at fair market value. That doesn’t trigger any taxes because buying or selling your principal residence does not result in a taxable capital gain or loss.
  • A home equity loan [or mortgage which is the same thing for this purpose] is secured against the joint property. It is not a loan from one spouse to the other.
  • It is the usage and servicing of the loan that determines attribution. If the loan is used by a lower income spouse and invested in their name, and that lower-income spouse pays the interest on that loan, then the investment income should be attributed to that lower-income spouse.
  • Interest expenses for the investing can only be deducted against the lower income spouse’s income.
  • You need to have a clear and clean paper trail. Keep records of the loan amount and all payments made by the lower income spouse. This is best done with the lower income spouse having their own personal account. Their paycheque goes into that account and they pay the loan from it. Make all deposits to and from the spouse’s investment account via that bank account. Not your joint account.
  • CRA also raises the specter of applying the general anti-avoidance rule. The CRA can use this bazooka to kill any maneuver that is used to avoid paying tax.

Use income-generating investments in the right accounts so that the loan interest can be deducted as an expense.

For an investment loan to be deductible against income (which is helpful in this case both to demonstrate that it is the lower income spouse’s loan and to reduce their tax), the investments must:

  • Be in a taxable account (not an RESP, RRSP, TFSA)
  • Have an expectation to generate taxable income from dividends or interest. Capital gains don’t count for that purpose. Holdings that don’t currently generate dividends, but have that potential may be eligible. Importantly, holdings that are not reasonably expected to do so because of a policy (like Berkshire Hathaway) or by their nature (swap-based ETFs) do not qualify.
  • That income generation does not need to exceed the cost of the loan as outlined in the spousal loan article.

Would an investment loan with your home as collateral be a useful strategy for you?

Hopefully, I have given you enough information to help answer that question. Of course, it needs to be considered in the context of being part of a cohesive financial and investment plan. This is actually a strategy that we have used. In my next post, I will outline how we leveraged our home equity to income split. I have also made an Excel-based investment loan calculator to help you model different scenarios.


  1. Unlocking the “dead equity” in your home via a HELOC is an excellent strategy to grow your investments, which we use.

    I agree that the first step is to assess your risk/benefit. A HELOC should only be used by investors who are disciplined (will not access the money for lifestyle expenses) and do not have any other high-interest loans. I tell others when they open a HELOC, that they should always negotiate that their bank pays for all costs (legal, appraisal costs), so that it’s free for them to open a HELOC. The bank will try to get you to pay for the costs, but they always have the flexibility to cover the costs themselves for their “VIP” clients (especially for physicians!)

    1. Thanks Dr. Networth. Excellent advice regarding negotiation of terms. Self-discipline is definitely key to using this type of strategy. We actually used our mortgage renewal as the opportunity for this strategy rather than a HELOC. Linking it directly with our mortgage gave us less flexibility than a HELOC which is probably a good thing since it prevents us from being undisciplined and deviating. I plan to lay out the details of our case in my next post.

  2. Great articles, just found your site!
    I have a question about income splitting. My girlfriend and I became common law while she had a mortgage to pay for a house. This house was her principal residence and we moved to that place which becomes both our principal residence. It is only in her name. However, I’m the one with the much higher salary and she might stop her job in the next 5 years. Does me paying all of her mortage a good way of income splitting? She would keep all of the capital gains and be able to invest it in taxable account. Seems like a legitimate scenario since we didn’t really plan to end up like this.
    What if we buy other houses like this? Where she’s always the one to get the mortgages in her name and I pay for them. Would that second situation going into avoidance territory since it’s recurring and looks like a planned strategy? The smith manoeuver like you describe here can also be used on top of that.

    1. Thanks Bluepurple!

      The higher income-earner paying for living expenses (in general) so that the lower income partner can save their money to invest in their own name is a good way to income split. In terms of the mortgage specifically, that is a great question. She owned the house pre-relationship and you are helping her pay her debt basically is how I would logically look at it. She would only realize the capital gain in the house upon selling and it should be tax-free as a principal residence anyway. If you start buying non-principal residences or sell it as a non-principal residence, then that could change since the gains would be taxable. I would consult an accountant before going that route.

      If you bought future houses, even though in her name, I suspect it could be attributable to you regardless (if there were a taxable gain on sale of the house). Of course, if she bought it with her own money with a solid paper trail showing that, then maybe not. Good question and I don’t know the answer. Either way, she could still potentially invest using a line of credit secured against a joint asset like I describe here. However, that also introduces the risks of using leverage to invest and should only be done very carefully.

      1. Exactly. I’m more curious about the case with no taxable gains for personal residences. The tax-free capital gain would be a transfer of income for the lower income spouse if the higher income pays the whole mortgage and doesn’t have his name on the title. The lower income spouse would only have to provide for the down payment which can be small or even loaned. It is not clear whether this is allowed or not to be planned or would fall under anti-avoidance rules. This looks like a big way to transfer income without using leverage or in addition to leverage with a HELOC.

        1. If it is non-taxable income, then it would still be no tax, even if it was attributed to the higher-earner. So, I don’t know that it matters much. I do wonder if it would be attributed to the higher income spouse if they paid the loan. If one were investing, the person paying the loan gets attributed the income regardless of which spouse’s name it is in. Personally, I think of our principal residence as housing rather than an investment per se. It will hopefully keep pace with inflation plus a couple percent (like the long-term historical average). I am curious how CRA would view it, but I suspect it wouldn’t be worth their while. Buying and selling primary residences as a way to transfer income seems an awfully cumbersome endeavor and would have its own costs with realtors, lawyers, land transfer taxes etc. Plus, I hate the pain in the butt of moving 😉

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