Loaning money to your spouse for income splitting purposes

How does this actually work for people with combined bank accounts (ie, how is the interest paid)? Would you just use the shared money and put the brokerage account in the lower income spouse's name? Would paying interest be necessary or would it be considered a gift?

Another thing (from http://www.rbcfinancialplanning.com/...t-purpose.html)

Another simple but very beneficial strategy is to use the income of the higher earning spouse to pay living expenses and tax liabilities and use the income of the lower earning spouse to make investments. This way, investment income earned will be taxed at the lower earning spouses’ rate.

Again, how would this be done if you have joint accounts? Just putting the investments in the lower income spouse's name?

 
According to the link you posted, no interest = attribution rule applies, so yes paying interest would be necessary.  I would 100% set-up separate accounts to attempt this. That way you have a paper trail to give the CRA if/when they accuse you of tax evasion (and then you can prove it was only tax avoidance, which is legal).

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As mentioned by the other poster, you need to charge interest or attribution rules will apply. It is even better to have a signed contract (see a lawyer) which states loan amount, interest rate, and repayment terms so that it is a bonafide loan and cannot be challenged by CRA. The interest rate you would want to charge would be the lowest rate you can so you are not stuck including a lot of interest income on your tax return. Check the CRA website for prescribed interest rates and use these rates as the interest rate. Hope this helps.

PS. I am a Chartered Accountant and have done this for clients in the past. With the low interest rate environment that we live in, prescribed rates are really low and can be really beneficial in income splitting and loans to spouses. 

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you should be aware your spouse is still paying you taxable interest. so you have to declare that interest as income. if you don't then you'll get hit with the attribution rules.
and this isn't a one time thing. the loan goes on until it's fully paid back, so you'll keep earning interest from your spouse until it's paid off.

just something to consider