Spousal Trust vs Outright RRSP Bequest on a $600K Registered Account in Ontario: Which Structure Leaves More to Adult Children After Both Spouses Die in 2026

The Scenario: $600K RRSP, Two Strategies, One Question

Frank, 67, dies in Ontario in 2026. He has a $600,000 RRSP and a surviving spouse, Diane, age 62. Two adult children. Frank earned $30,000 of pension income in the year of death before passing. Diane has $25,000/year of her own income (small pension plus partial CPP). The couple's home is held jointly and passes to Diane outside the estate. The only question is what happens to the $600,000 RRSP.

Two strategies. One sends the RRSP directly to Diane's registered account, preserving tax deferral. The other triggers immediate tax to fund a testamentary trust with income-splitting potential. The question: which structure puts more dollars in the children's hands after both spouses die?

Strategy 1: Direct Spousal Rollover — Full Tax Deferral

Frank names Diane as the direct beneficiary on his RRSP. Under section 60(l) of the Income Tax Act, the RRSP proceeds transfer to Diane's own RRSP as a “refund of premiums.” No tax at Frank's death. Zero. The full $600,000 continues compounding tax-deferred inside Diane's registered account.

Phase 1: Tax-Deferred Growth (Diane ages 62–71)

Diane doesn't need the RRSP money for living expenses. It sits in her registered account, growing at 6% annually. No mandatory withdrawals until she converts to a RRIF, which must happen by December 31 of the year she turns 71.

After 9 years of uninterrupted tax-deferred growth:

$600,000 × 1.06⁹ = $1,013,700

The RRSP has nearly doubled. No tax has been paid on any of it. This is the rollover's superpower — every dollar of growth stays inside the registered account, compounding on pre-tax money.

Phase 2: RRIF Minimum Withdrawals (Diane ages 71–81)

At 71, Diane converts to a RRIF. CRA's prescribed minimum withdrawal factors apply — starting at 5.28% at age 71 and rising to 7.08% at age 81. At a 6% growth rate, the RRIF balance stays remarkably stable because growth outpaces the minimum withdrawal in the early years.

Total RRIF minimum withdrawals over 11 years: approximately $674,000. Those withdrawals are taxable income to Diane each year. With $25,000 of other income plus $54,000–$70,000 in RRIF withdrawals, her annual taxable income runs $79,000–$95,000 — safely below the OAS clawback threshold of $95,323. Average marginal rate on the RRIF withdrawals: approximately 33%. After-tax withdrawals received over 11 years: roughly $451,000.

Phase 3: The Terminal Return (Diane's death at 82)

When Diane dies, the remaining $967,000 RRIF balance is fully included on her terminal T1 return under section 146(8.8). With $25,000 of other income, total taxable income is approximately $992,000. At Ontario's top combined rate of 53.53% on income above $253,000, the tax bill is roughly $440,000.

Net RRIF passing to children at Diane's death: $967,000 − $440,000 = ~$527,000.

Strategy 2: Testamentary Spousal Trust — Immediate Tax, Then Income Splitting

Frank's will directs the $600,000 RRSP proceeds into a testamentary spousal trust for Diane. The trust qualifies under section 70(6) of the Income Tax Act — Diane is the sole income beneficiary during her lifetime, and the capital passes to the children at her death. But here is the part most people miss: an RRSP cannot be held inside a trust. The RRSP deregisters at Frank's death regardless of who the beneficiary is.

The Day-One Tax Hit

The full $600,000 is included on Frank's terminal return under section 146(8.8). Combined with his $30,000 of pension income, his terminal return shows $630,000 of taxable income.

Compare: Strategy 1 sends $600,000 into Diane's RRSP. Strategy 2 sends $325,000 into a trust. On day one, the trust is already $275,000 behind. The question is whether income-splitting advantages and trust taxation during the 20-year holding period can close that gap.

The Trust Years: Income Splitting and Its Limits

The $325,000 is invested inside the testamentary spousal trust at 6% annually. Assume a balanced portfolio: roughly 3% income (dividends and interest) and 3% capital appreciation.

The income-allocation rules for spousal trusts: Under subsection 104(6), the trust can deduct income it allocates and pays to a beneficiary. For a qualifying spousal trust under section 70(6), Diane must be the sole income beneficiary during her lifetime. The children cannot receive trust income while Diane is alive. All investment income — approximately $9,750/year initially — must be allocated to Diane or retained in the trust.

The income-splitting advantage is real but limited. Diane's low marginal rate (~20–24%) beats the flat 53.53% trust rate. But the income being split is only ~$9,750/year on a $325,000 base — the tax saving versus the trust flat rate is roughly $3,200/year. Over 20 years, that cumulative saving is approximately $64,000. It does not come close to covering the $275,000 day-one tax hit.

Trust Capital at Diane's Death (Age 82)

If income is allocated to Diane annually (and not reinvested in the trust), the trust principal grows only through capital appreciation. At 3% annual growth on $325,000 over 20 years:

$325,000 × 1.03²⁰ = ~$587,000

At Diane's death, the trust triggers a deemed disposition on all capital property. The capital gain: $587,000 − $325,000 = $262,000. Trusts do not get the individual's tiered capital gains inclusion — the full gain is included at 66.67% (the trust/corporation rate from the 2024 federal budget).

Plus Diane received approximately $7,700/year × 20 years = ~$154,000 in after-tax income distributions from the trust. If she saved and reinvested any of that, it adds to the estate — but it was taxed as income along the way. For a broader look at how spousal trusts compare on non-registered assets (where the calculus is different), see our spousal trust vs outright inheritance guide on a $1.5M estate.

The Head-to-Head Comparison

The direct rollover wins by roughly $330,000–$450,000 depending on how much of the RRIF withdrawals Diane reinvests. Even comparing just the capital passing at the second death ($527,000 vs $493,500), the rollover is ahead. Add the $451,000 in after-tax RRIF withdrawals and the comparison is not close.

When the Spousal Trust Wins Anyway

The numbers say rollover. But estate planning is not always about the numbers.

Second marriages

If Frank and Diane are in a second marriage and Frank has children from a prior relationship, a direct RRSP rollover gives Diane full control of $600,000. She can name her own children as beneficiaries, spend it all, or remarry and leave it to a third spouse. A testamentary spousal trust locks the capital for Frank's children — Diane gets income for life, the children get the principal at her death. The $275,000 tax cost may be the price of certainty.

Creditor protection

RRSP and RRIF assets generally have creditor protection under provincial legislation while the original annuitant is alive. But once Diane takes RRIF withdrawals and deposits the after-tax cash into a non-registered account, that protection vanishes. A testamentary trust provides ongoing creditor protection for the trust capital — it is not Diane's personal asset.

Capacity concerns

If Frank is concerned about Diane's ability to manage a large registered account in her 70s and 80s — cognitive decline, vulnerability to financial abuse, susceptibility to poor advice — a testamentary trust with a professional trustee provides oversight. The trustee makes investment decisions, controls distributions, and protects the capital. An RRSP in Diane's name offers no such guardrail.

The Hybrid Approach: Rollover Plus Trust on Other Assets

In practice, the choice is not binary. Frank can name Diane as direct RRSP beneficiary (capturing the rollover) and create a testamentary spousal trust in his will for non-registered assets. The RRSP rolls tax-free. The non-registered portfolio transfers to the spousal trust at the original adjusted cost base under section 70(6) — no deemed disposition, and the trust provides control over those assets.

This hybrid captures the best of both: tax-deferred compounding on the registered money, and control + eventual income-splitting potential on the non-registered money. Most estate lawyers working with $500K+ registered accounts in Ontario will recommend this structure unless there is a specific reason to sacrifice the RRSP rollover.

RRIF Minimum Withdrawal Rates Used in This Model

The RRIF minimum withdrawals in Strategy 1 use CRA's prescribed factors under ITA Regulation 7308 (post-2015 federal budget schedule). These rates apply to all RRIFs regardless of when they were opened. For the full table at every age from 71 to 95+, see our RRIF minimum withdrawal rates 2026 guide.

Ontario Probate on the Remaining Estate

One difference rarely discussed: the RRSP with a direct beneficiary designation bypasses probate entirely. It flows directly to Diane without going through the estate. The testamentary trust receives RRSP proceeds through the estate — and Ontario's Estate Administration Tax of $15 per $1,000 above $50,000 applies to whatever passes through the will. On $600,000 of RRSP proceeds flowing through the estate: ($600,000 − $50,000) × $15/$1,000 = $8,250 in probate fees that the rollover strategy avoids.

That $8,250 is a further cost against Strategy 2. When you add it to the $275,000 tax hit, the spousal trust is $283,250 behind on day one. For more on Ontario probate mechanics and avoidance strategies, see our inheritance tax Canada 2026 complete guide.

The 21-Year Deemed Disposition Rule for Trusts

One risk specific to Strategy 2: if Diane lives more than 21 years after the trust is created, the trust faces a deemed disposition on all capital property at the 21st anniversary — triggering capital gains tax inside the trust at the top flat rate. In our scenario (20-year horizon), we clear this deadline. But if Diane were 55 when Frank died, the 21-year rule would create a forced tax event when she is 76, potentially eroding trust capital when it is needed most.

A qualifying spousal trust is exempt from the 21-year deemed disposition rule until the spouse dies — but only for property that transferred to the trust under section 70(6). For RRSP proceeds that were deregistered and flowed to the trust as cash (then reinvested), the 21-year rule applies to the reinvested assets. Estate lawyers must track which trust assets qualify for the spousal trust exemption and which are subject to the 21-year clock.

Three Takeaways for a $600K RRSP in Ontario