Income splitting with your spouse on investment income is possible in Canada, but only through specific CRA-approved strategies. The most common method is the spousal RRSP, which lets you contribute to a registered plan in your spouse's name, creating future tax deductions for you while building tax-free growth for them. Other strategies include gifting to an adult spouse (though investment returns on that gift remain your responsibility), using prescribed-rate loans with proper documentation, and strategic account placement in lower-income spouse RRSPs or TFSAs. The key difference from child income splitting is that adult spousal income splitting has fewer restrictions, though you must follow CRA rules carefully to avoid the attribution rules. Understanding when and how to split investment income can significantly reduce your household's total tax burden. This guide covers the legitimate methods available to married couples and common-law partners in 2026. Spousal income splitting allows one spouse to earn income that benefits both partners from a tax perspective. Unlike child income attribution (which applies strict rules to prevent tax avoidance), adult spousal strategies are generally permitted when structured correctly.
Yes, through a prescribed-rate loan or by gifting funds. With a prescribed-rate loan, investment income earned on the loaned amount is attributed to your spouse, provided the loan is properly documented and interest is paid. With a gift (no loan), your spouse owns the investments and reports all income, though you don't get a deduction.
If your spouse withdraws from a spousal RRSP within 21 months of your contribution (or in the year of contribution plus the next two calendar years), the withdrawal is attributed back to you for tax purposes. After this period, withdrawals are taxed in your spouse's hands at their rate.
You can contribute up to your available RRSP contribution room for the year. The contribution counts against your room, not your spouse's, but the funds grow in their registered account. Your spouse's withdrawal room remains separate.
No, attribution rules do not apply to gifts to adult spouses. The investment income earned on a gift belongs to your spouse and is taxed in their hands. This is different from gifts to minor children, where attribution does apply.
The CRA prescribed rate changes quarterly and is published on the CRA website. As of 2026, rates are historically low, which can make prescribed-rate loans less attractive for income splitting. Check the CRA's prescribed rate page for the current quarterly rate.