Build a Tax-Efficient Retirement Income Plan

The most tax-efficient retirement income plan

Francine, there isn’t a single “most tax-efficient” lifetime withdrawal strategy that applies to everyone. Tax efficiency depends on timing, life expectancy, benefit timing (CPP and OAS), and how you sequence withdrawals from non-registered accounts, RRSP/RRIF, and TFSA. To illustrate this, four different withdrawal strategies were modelled that all allow retirement at 60, and the results vary depending on assumptions and life span.

It’s essential when working with a financial planner to compare multiple scenarios in a model and to participate in the planning process. The best approach for taxes and long-term wealth will depend on how you balance taxable, tax-deferred and tax-free accounts, and on when you start CPP and OAS. The four strategies examined were:

1. Start withdrawals from non-registered accounts at age 60, and delay converting the RRSP to an RRIF until age 72 (begin RRIF withdrawals at 72).
2. Convert the RRSP to an RRIF and start RRIF withdrawals at age 60 (i.e., use registered funds earlier).
3. Convert RRSP to RRIF at 60, then convert back to an RRSP by age 63, withdraw from non-registered accounts from 64 to 72, then convert RRSP to RRIF again and start RRIF withdrawals at 72. (This is a tactical sequencing strategy to manage taxable income across years.)
4. Transfer most or all non-registered assets into the RRSP between ages 64 and 71 (after accounting for capital gains tax), do not claim the RRSP deduction immediately, defer claiming deductions until later, use TFSA assets for spending from 64 to 71, then claim RRIF deductions starting at 72. This option assumes substantial unused RRSP contribution room.

Before sharing the modelling results, note that two of the strategies keep CPP and OAS starting at 65, while two delay CPP to age 70 (with OAS at 65). Those differences materially affect lifetime income, tax and estate outcomes.

Ways to reduce taxes on retirement investments

The four strategies were modelled using consistent assumptions to compare lifetime taxes, final net worth and after-tax estate value. The summary table below ranks the plans by after-tax estate value.

Interestingly, the strategy that produces the most wealth over time also carries the highest lifetime tax bill. Key assumptions used in the modelling include:

• Inflation at 3% long term.
• Home appreciation at 4%.
• Equity returns assumed at a 6% nominal return (3% dividends, 3% capital gains, 20% turnover).
• Estimated capital gains in the non-registered account of $52,000 at transfer.
• Life expectancy modelled to age 100 for long-term planning sensitivity.

Why did the RRSP top-up strategy rank highest for after-tax estate value? Several factors explain its performance:

• Deferring CPP to age 70 increases guaranteed lifetime CPP income; combined with a long life expectancy, this raises total income later in life.
• Tax-deferred compounding inside registered accounts (RRSP/RRIF) can outweigh the tax on larger future withdrawals when you have a long investment horizon.
• Carefully sequencing income and deductions—maximizing benefits like the Guaranteed Income Supplement (GIS) between 65 and 72—can improve net outcomes.
• Carrying forward RRSP contribution deductions and claiming them strategically over later years, while channeling excess savings into TFSA accounts, optimizes tax-free growth.

What if you spend more or live a shorter life?

To show sensitivity to spending and life span, the model also tested an extra $10,000 per year in spending and a shorter life expectancy to age 83 (near the average female life expectancy). Results shift the rankings:

When life expectancy shortens or spending increases, the plan that performed best under the long-life scenario may rank lower. All four strategies would allow you to retire at 60; the right choice depends on how long you expect to live, how much you plan to spend, and how comfortable you are with the trade-offs.

Update your plan as life changes

Financial plans need to adapt. A lifetime simulation gives a useful overview, but you should update tax and income planning annually or every few years—especially before you reach the ages when CPP and OAS begin. Small changes in timing or spending can change which strategy is most tax-efficient for you.

If you want a definitive answer tailored to your situation, work with a financial planner who will model these scenarios with you and incorporate your personal preferences, health expectations and tolerance for complexity. Planners can run the technical simulations, but you must define how you want to live in retirement and which trade-offs you are willing to accept.

Read more about personal income taxes in Canada:

• Self-employed? Here’s how to file taxes for a side hustle
• The final tax return after death: How it gets done in Canada
• The tax implications of working abroad for residents and non-residents of Canada
• U.S. withholding tax in an RRSP for Canadians