Income Splitting
Fractionnement du revenu in French
Quick definition
Income splitting is any legal strategy that shifts income from a higher-earning family member to a lower-earning one so it is taxed in lower brackets. Canada taxes individuals, not households, so the savings can be real, but the CRA polices every route.
Why shifting income saves tax
Canada's tax system is progressive: each extra dollar you earn is taxed at your marginal tax rate, which climbs as your income climbs. Because tax is calculated person by person, a couple where one spouse earns $150,000 and the other earns nothing pays thousands more than a couple earning $75,000 each, even though the household income is identical. Every income-splitting strategy exploits that gap: move a dollar out of a 45% bracket into a 20% bracket and the family keeps 25 cents more of it.
The catch is that you cannot simply hand money over. The attribution rules tax most gifted or cheaply lent investment money back to the person who supplied it, exactly as if the transfer never happened. Legal income splitting means using the specific routes the system deliberately leaves open. Here they are, roughly in order of impact.
Pension income splitting: the biggest lever
For retirees, pension income splitting does the heavy lifting. A joint election on form T1032 moves up to 50% of eligible pension income, such as RRIF withdrawals from age 65 or registered pension plan payments, onto the lower-income spouse's return. It is entirely on paper, decided fresh each year at filing time, and routinely saves couples thousands.
Spousal RRSP: splitting before 65
A spousal RRSP is the classic advance-planning tool. The higher earner contributes and takes the deduction against their high bracket; the lower-earning spouse owns the account and, once the withdrawals clear the plan's 3-year rule, is taxed on them at their lower rate. It matters most for couples retiring before 65, when the T1032 election is mostly unavailable, and for shifting more than the 50% that T1032 allows.
Prescribed-rate loans
Attribution does not apply to money lent to a spouse at the CRA's prescribed interest rate, provided the interest is actually paid every year by January 30. The rate at signing is locked in for the life of the loan, so any investment return above it is taxed to the borrowing spouse. These arrangements need a written loan agreement and discipline about the interest payments, and they are most attractive when the prescribed rate is low.
CPP and QPP pension sharing
Spouses who are both at least 60 can apply to share their CPP or QPP retirement pensions through Service Canada or Retraite Québec. Unlike the T1032 election, this genuinely redirects part of each monthly payment to the lower-income spouse, who then pays the tax on it. The gain is usually modest but it requires no ongoing effort once set up.
Two quiet everyday strategies
The simplest splitting requires no forms at all. First, let the higher earner pay every household bill, the rent or mortgage, groceries, taxes, while the lower earner invests their own salary. Attribution follows gifted capital, not household bookkeeping, so all of that investment income is taxed at the low rate. Second, give your spouse money to contribute to their own TFSA: attribution does not apply while the money stays inside, because nothing in a TFSA is taxable to anyone.
What does not work
Depositing your salary into your spouse's account, gifting them a lump sum to invest in a taxable account, or lending them money interest-free accomplishes nothing: the attribution rules send the interest, dividends and (for spouses) capital gains straight back to your return. Joint accounts do not help either; the CRA taxes the income in proportion to who contributed the money, whatever the names on the account.
The TOSI caution: private-company dividends
Business owners face a separate guardrail, the Tax on Split Income (TOSI). In general terms, dividends paid by a private corporation to family members who do not meaningfully work in the business are taxed at the top marginal rate, erasing the benefit of sprinkling income across the family. A key carve-out is the "excluded business" idea: a family member who works in the business regularly and substantially, with an average of roughly 20 hours per week often cited as the benchmark, generally escapes TOSI. The rules are intricate and fact-specific, so anyone paying dividends from a family corporation should get professional tax advice before splitting.
In Canada
Income splitting in Canada has moved in two directions at once. The 2007 arrival of pension income splitting opened a wide, government-sanctioned door for retirees, while the 2018 TOSI regime largely closed the door on sprinkling private-company dividends to family members. Québec applies the same attribution logic on its provincial return, so no province rewards simple gifting, and its pension-splitting rules add an age-65 requirement of their own. The pattern is consistent: splitting works when you use a sanctioned route, and fails, sometimes retroactively and with interest, when you improvise.
Worked example
Sam earns $180,000 and Avery earns $28,000. They restructure without a single exotic product. Sam starts paying all household bills so Avery's entire surplus is invested in Avery's name, taxed around 20% instead of Sam's roughly 45%. Sam gives Avery $7,000 (as of July 2026) to fill Avery's TFSA room, where growth is taxed at 0%. Sam also directs $15,000 a year into a spousal RRSP, deducting it at 45% now so it can be withdrawn in Avery's low brackets in retirement.
None of this triggers attribution, and decades later the couple retires with two similar-sized retirement incomes instead of one large and one tiny, which keeps both spouses in mid brackets for life. Pension income splitting at 65 then fine-tunes whatever imbalance remains.
Reviewed by Alexandre Bernier, CFP®, CIM®, PFP®·Updated July 2026