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The income splitting rules in Canada let some families move income to a lower earner, and the attribution rules take it back when the move is only a gift. In our Ontario example, shifting $20,000 from a $120,000 earner to a $40,000 earner saves about $2,776 a year. The catch is that most ways of doing it don’t work.
Plenty of articles promise “tricks”. Here we stick to what the CRA says and what the maths shows, and we say plainly what we couldn’t confirm. If a plan sounds like free money, it usually has a rule hiding behind it.
Why does shifting income save tax?
Because tax rates rise with income, and each person gets their own brackets and personal amounts. Two people on $80,000 pay less than one on $120,000 and one on $40,000. Here’s the gap, using Ontario 2026 rates and basic personal amounts only.
| Split of taxable income | Federal and Ontario tax, combined |
|---|---|
| $120,000 and $40,000 | $33,713.54 |
| $100,000 and $60,000 | $30,937.80 |
| Difference | $2,775.74 |
That’s what a $20,000 move does at these incomes. You can test your own pair in the income tax calculator, and the marginal tax rate calculator shows how steep your next dollar is. One warning there: Ontario’s rate jumps near $72,000 and $200,000 because the Ontario Health Premium rises in narrow bands of about $600, so don’t read a spike as an error.
What do the attribution rules stop?
Suppose you give your spouse $20,000 to invest. The income it earns generally stays on your return, not theirs. The CRA’s older bulletin on the topic says property transferred or loaned to a spouse has its income attributed back, unless the spouse pays fair market value or you’re living apart because the relationship broke down. That bulletin is archived, so read the current CRA pages too.
A loan changes things. The bulletin says attribution doesn’t apply if you charge interest at the lower of the prescribed rate or a commercial rate, and the interest is actually paid by 30 January of the next year. Miss that date once and the protection is lost. The prescribed rate moves each quarter, so look it up on the CRA prescribed interest rates page for the fourth quarter of 2026. That page shows 3% as the rate used for loan benefits, and the prescribed rate for family loans is the same figure, but confirm it on the day you sign.
Minors are different again. Income from property you give a minor child is attributed to you too, but capital gains are treated differently. Gifts to adult children don’t trigger the automatic rule, although other anti-avoidance rules can still apply.
Which splitting methods do work?
You can allocate up to 50% of your eligible pension income to your spouse or common-law partner.
CRA, Pension income splitting, canada.ca
Pension income splitting is the clean one. The CRA lets you allocate up to 50% of eligible pension income to your spouse or common-law partner, using Form T1032 signed by both. CPP and OAS payments are not on the eligible list. The deduction goes on line 21000 and the receiving spouse reports it on line 11600. Some of the tax withheld moves with it.
Picture Marie in Moncton, who gets $40,000 a year from an employer pension while her husband Luc has very little income. She can allocate up to half, $20,000, to Luc on the form, and each of them then pays tax on about $20,000 instead of Marie paying on all $40,000. Both must sign, and both have to be residents of Canada on 31 December. The tax saved depends on your provincial brackets, so run both versions in the income tax calculator before you decide how much to move.
A spousal RRSP is the other classic. The higher earner contributes and the lower earner withdraws later, usually in a lower bracket. But if you contributed in the year of the withdrawal or the two years before, the withdrawal is taxed back to you. Plan three calendar years ahead. The RRSP calculator and the retirement income tax calculator help with the maths.
What about paying family from a business?
Here the trap is the tax on split income, often called TOSI. It applies the top rate to certain dividends, capital gains and partnership or trust income received by family members, and it came in for 2018 and later years. The CRA says it covers people aged 17 and up for income from a related business, with exclusions.
The exclusions matter more than the rule. Salary and wages are excluded. So is income where the person works in the business on a regular, continuous and substantial basis, which the CRA describes as an average of at least 20 hours a week in the year or in five earlier years. Beyond that, reasonable returns have their own tests that differ for ages 18 to 24 and older adults. If you pay a spouse dividends from your corporation, read the CRA guidance closely. We haven’t tested every case, and this is where an accountant earns the fee. Our dividend tax calculator shows the tax on the receiving end.
Can you just share the household bills instead?
Often that’s the simplest route, and it needs no election. If the higher earner pays more of the groceries, mortgage and utilities, the lower earner can keep more of their own pay for investing, and the income from those savings is theirs. The key is that the money they invest is really theirs and doesn’t come from a gift. Keep the accounts separate and the paper trail clean, because the CRA looks at where the funds came from, not at what you meant to do. It isn’t glamorous, but it’s the move that holds up at tax time.
Mistakes and limits
Gifting investments to a spouse and expecting the tax to move. It usually won’t.
Forgetting the interest payment date on a loan. The January deadline is easy to miss.
Using a spousal RRSP and then withdrawing within three calendar years.
Moving the money first and asking questions later. Once you’ve gifted it, you can’t undo the attribution just by changing your mind.
Treating the $2,776 figure as typical. It’s one pair of incomes, before credits, and only the maths, not advice. Families with kids, pensions or a business have more moving parts. A sale of shares also brings in the capital gains tax calculator, which uses a 50% inclusion rate. The two-thirds rise was cancelled by the Prime Minister’s release of 21 March 2025, but we couldn’t find the 2026 rate on a CRA page.
The sources behind this page
The CRA pages on pension income splitting, the spousal RRSP three year rule, the income sprinkling FAQ and the archived interpretation bulletin IT-511R. The tax amounts use the 2026 federal and Ontario rates in our engine, read on 30 September 2026. We’re an independent site, and no government body is behind it.
Frequently asked questions
Can I split income with my spouse in Canada?
Some ways work, such as pension income splitting and spousal RRSPs. Just gifting money for your spouse to invest generally brings the income back to you.
How much pension income can be split?
Up to 50% of eligible pension income, using Form T1032 signed by both spouses or common-law partners.
What is the spousal RRSP three year rule?
If you contributed in the year of the withdrawal or the two years before, the withdrawal is included in your income.
What is TOSI?
The tax on split income applies the top rate to certain income received by family members from a related business, with exclusions such as salary and substantial work in the business.
Do attribution rules apply to gifts to adult children?
The automatic rules described in the CRA bulletin do not, though other anti-avoidance rules may apply.
- How Canadian income tax works: brackets and credits
How federal and provincial Canadian income tax stack up, what marginal and average rates mean, and how credits and deductions change your bill