Janet Morrison's RRSP held $420,000 on her 71st birthday. By law, she had until December 31 to close it. The money itself wasn't going anywhere, she could roll it into a Registered Retirement Income Fund and keep most of it invested exactly as before, but the tax implications of that rollover would follow her for the rest of her life.

The conversion from RRSP to RRIF is not optional. The Income Tax Act sets a hard deadline: the year you turn 71. After that, the account must shift from accumulation mode to decumulation mode, which means mandatory annual withdrawals calculated as a percentage of the fund's total value. For someone Morrison's age, that percentage is 5.28% in 2026. On $420,000, that's $22,176 she must withdraw whether she needs the cash or not.

The withdrawal itself is taxable income. Combined with her Old Age Security and the Canada Pension Plan benefits she's already collecting, Morrison's total income for the year will land somewhere near $85,000. That puts her in a marginal tax bracket of 30.4% in British Columbia. The $22,176 RRIF payment adds roughly $6,700 to her tax bill. If she had withdrawn the same amount from her RRSP the year before, the tax outcome would have been identical, but once the RRIF is established, the floor on withdrawals rises every year. At 75, the mandatory rate jumps to 5.82%. At 80, it's 6.82%. The percentage climbs because the government assumes the fund should be largely depleted by the time the owner reaches their late 80s.

Morrison's larger problem is proximity to the Old Age Security clawback threshold. In 2026, that threshold sits at $95,323. It adjusts annually for inflation, but not by much. A senior whose net income exceeds that line loses 15 cents of OAS for every dollar over. The clawback is technically a recovery tax, but the effect is the same: it functions as an additional marginal rate stacked on top of the regular income tax. If Morrison's income creeps above $95,323 in a future year, say, because she sold a rental property or because her RRIF grew faster than expected, she'll face an effective marginal rate over 47% on the excess. That's federal and provincial income tax plus the OAS recovery combined.

The Spouse Age Strategy

The conversion deadline is fixed, but the withdrawal calculation is not. Morrison could have based her RRIF minimums on her husband's age instead of her own. He's 68. At that age, the mandatory rate is 4.55%, nearly a full percentage point lower. On the same $420,000, that brings the first-year withdrawal down to $19,110, saving roughly $1,000 in tax and keeping her further from the clawback line. The Income Tax Act allows this election at the time of conversion. It cannot be changed later.

She didn't take it. Her advisor never mentioned it, and the paperwork her bank sent didn't highlight the option. It was buried in a paragraph on page three of the transfer form. Most people sign where the institution flags and move on.

The cost of that oversight compounds. The gap between the two rates widens as both spouses age, but the RRIF stays locked to whichever age was selected at setup. By 75, Morrison will be pulling out $24,444 annually under her own age bracket. Under her husband's age, she'd be withdrawing $21,462. That's a $3,000 difference in a single year, and it grows.

The RRIF minimum isn't the RRIF maximum. Morrison can take out more anytime she wants. But anything she takes beyond the minimum triggers withholding tax, and anything she takes can never go back into the tax-sheltered account. The system is designed for one direction: out.