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Put $10,000 into your spouse’s RRSP and you get the same deduction as from your own plan: about $3,689 of Ontario tax saved on a $120,000 income. The payoff comes on the way out. Grow it at 5% for 15 years, draw it over 10, and with $20,000 of other income for your spouse against $70,000 for you, the withdrawals are taxed about $2,721 less ($6,647 against $9,367).
Those figures are estimates from the site’s 2026 tax engine. The catch is timing. A spousal withdrawal that comes too soon is taxed to you, so the calculator checks the three-year window and shows which of your own limits the deposit uses.
When does a spousal RRSP save tax, and when doesn’t it?
It saves tax only if your spouse will be in a lower bracket than you when the money comes out. Flip the example, with $150,000 of other income for your spouse and $20,000 for you, and the plan costs you about $5,285 more ($11,932 against $6,647). Equal incomes give no gain at all. From 65, RRIF payments can also qualify for pension income splitting of up to 50%, which may do part of the same job without a spousal plan (Canada Revenue Agency: pension income splitting).
How does the three-year attribution rule work?
If you put money into any of your spouse’s RRSPs in the year they withdraw, or in either of the two years before, part of the withdrawal is taxed to you. The CRA says you generally avoid this when you made no spousal contributions in the withdrawal year or the two years before it (Canada Revenue Agency: withdrawing from spousal RRSPs). The amount added to your income is the lesser of the withdrawal and your contributions in that window. A deposit in 2026 means waiting until 2029, and a fresh deposit in 2028 restarts the count. For a spousal RRIF, only the part of a payment above the year’s minimum is caught.
Whose RRSP room does a spousal contribution use?
Yours. Your limit for 2026 is the lesser of 18% of last year’s earned income and $33,810, less any pension adjustment, plus unused room, and a spousal deposit cuts it exactly like a deposit to your own plan (Canada Revenue Agency: RRSP limits). In the example, earned income of $120,000 gives $21,600 of room and the $10,000 deposit leaves $11,600. Your spouse’s room stays whole, so you can both contribute. Go over your room by more than $2,000 and the tax is 1% a month (Canada Revenue Agency: contributing to a spouse’s RRSP). The dollar limit rises to $35,390 for 2027, and the deadline for the 2026 tax year is March 1, 2027.
What does the estimate leave out?
It assumes a flat growth rate, 2026 tax rates in every year and one province for both of you. The age and pension credits, OAS recovery tax and pension income splitting aren’t in it. Real results move with returns, rule changes and how long each of you lives, so read the dollar gap as a rough size, not a forecast.
Where does this information come from?
The attribution and room rules come from the Canada Revenue Agency pages linked above. Every tax figure and the 2026 RRSP limit of $33,810 come from the site’s own 2026 tax engine. Checked in October 2026. This is an independent information site: we provide no services, we do not represent the CRA or any organization, and we do not guarantee that anything here is accurate or current. We accept no liability for decisions based on it. Check the official source before you rely on it. See the full disclaimer.
Frequently asked questions
Can I still contribute to a spousal RRSP after I turn 71?
Yes, as long as you still have room of your own. You can contribute to your spouse's or common-law partner's RRSP until December 31 of the year they turn 71. Your own RRSP contributions end in the year you turn 71.
Does a spousal RRSP use my spouse's contribution room?
No. RRSP room can't be transferred between spouses, so every dollar you put in a spousal plan reduces your own limit. In the example, a $10,000 deposit takes your remaining room from $21,600 to $11,600.
What if my spouse withdraws the money too soon?
You report the lesser of the withdrawal and your recent spousal contributions as your own income. Say you contributed $10,000 and your spouse withdrew $12,000 two years later: $10,000 lands on your return.
Does a common-law partner count?
Yes. The CRA applies the same rules to a spouse or common-law partner, for contributions and for the three-year withdrawal rule. The annuitant generally completes Form T2205 to work out who reports what.