The “2x Your Salary by 35” Rule Is American. Here’s the Canadian Math.
Part 2 of a five-part series on the math behind your savings number. Part 1 asked what you’re actually saving for. This part anchors on retirement — the goal where the math is hardest to handwave — and shows why the popular salary-multiple rules need a Canadian rewrite.
This is part 2 of a five-part series on the math behind your savings number. Each part stands alone; together, they walk from “what’s the goal?” through “how much do you need?” to “what will you do with the time once you have it?”
If you’ve searched any version of “how much should I have saved for retirement” in the last decade, you’ve seen the same rules of thumb: by 30, save one times your annual salary, 2x by 35, 3x by 40, 6x by 50 and 8–10x by 60.
The rules are easy to remember, they scale with income, and they feel rigorous. They show up in nearly every retirement article published online, including most of the Canadian ones.
They’re also, for Canadians, mis-calibrated.
It’s not because the underlying math is wrong. The math is fine. The problem is that the assumptions plugged into the math are American, and three of those assumptions don’t translate cleanly across the border. This results in the popular salary multiples understating the target.
This post does two things. First, it shows where the rules come from. They’re not arbitrary. They’re the output of a present value calculation with specific assumptions baked in. Second, it re-runs the same math with Canadian inputs and arrives at a different number.
Where the rules come from
The salary-multiple framework was popularized in the early 2010s by U.S. asset managers (most prominently Fidelity), whose age-banded benchmarks have been echoed and republished by competitors for over a decade. The methodology is consistent: assume a retirement age, assume what percentage of pre-retirement income you’ll need to replace in retirement, assume a portfolio return, take a guess at how long you’ll live, and back-solve for what multiple of current salary you’d need at each checkpoint age.
The math itself is a present value calculation, which is the same calculation any retirement planner does. The retirement number is the lump sum needed at retirement to fund a stream of inflation-adjusted spending over a defined period.
Stated formally:
Where:
- PV is the portfolio needed at retirement
- PMT is annual spending in retirement, in today’s dollars
- r is the real (inflation-adjusted) return on the portfolio
- n is the number of years the portfolio needs to last
The American multiples are this formula, run with American assumptions, then divided by a benchmark salary at each age to produce a memorable ratio.
The trouble is in the assumptions.
What’s American about the American answer
Three assumptions baked into the standard derivation don’t translate.
1. Government benefits cover less in Canada than the rules assume
This is the largest single source of distortion, and it matters most for higher earners.
The U.S. Social Security system is more generous than CPP and OAS combined at most income levels, but the gap widens at higher income brackets.
The 2025 Social Security Administration actuarial analysis lays out replacement rates for hypothetical workers claiming at full retirement age:
| Earnings level | Approx. annual income | U.S. Social Security replacement rate |
|---|---|---|
| Very low | $18,000 | 78.7% |
| Low | $31,000 | 57.3% |
| Medium | $69,000 | 42.6% |
| High | $111,000 | 35.2% |
| Maximum | $171,000 | 27.9% |
The Canadian equivalent caps out much lower. For 2026, the maximum CPP retirement benefit at age 65 is $1,507.65 per month. OAS adds $743.05 per month at the same age. Combined, that’s a maximum of about $27,000 per year per person — and that’s the maximum, only achievable by people who earned at or above the Year’s Maximum Pensionable Earnings for most of their working life and those earning under $93k/year because OAS gets clawed back above that number and ultimately is reduced to $0 at just above $150k in annual retirement spending.
For a Canadian that earns $150k annually, CPP replaces roughly 14% of pre-retirement income. The equivalent U.S. earner sees about 30–35% replacement from Social Security. That’s a 20% gap, and it has to come from somewhere. That means you can either spend less or you need a bigger portfolio.
2. Long-run return assumptions in Canadian planning are lower than U.S. equivalents
The American rules typically assume real (inflation-adjusted) returns of 5–6% on a balanced portfolio. This reflects the historical performance of U.S. equity markets, which have outperformed most of the world over the last century.
Canadian financial planners use a more conservative anchor. The 2025 FP Canada Projection Assumption Guidelines (the standard professional reference for long-term projections) assume Canadian equities return 6.6% nominal, fixed income 3.4%, and inflation 2.1%. For a 60% equity / 40% fixed income portfolio, that works out to roughly 3.2% real return before fees. After typical investment fees of 0.5–1.0% per year, the realistic planning assumption sits between 2.5% and 3.0% real.
That’s meaningfully lower than the 5–6% real that anchors the American rules. Lower assumed returns mean a bigger portfolio is required to fund the same spending.
3. Longevity assumptions in older rules are too short
Older versions of the salary-multiple framework assume retirement spending ends around age 85. That was a reasonable planning horizon in the 1990s. It isn’t now.
According to Statistics Canada, a Canadian woman who reaches age 65 today has a roughly 50% chance of living to 88, and a meaningful chance of reaching 95 or beyond. Canadian men at 65 are slightly behind on average but the gap has narrowed considerably. Planning to 90 is the modern conservative baseline; planning to 95 is increasingly the defensible default; planning to 100 isn’t paranoid for someone in their thirties today.
Longer planning horizons mean larger portfolios.
Running the math with Canadian inputs
Let’s work through one example. A 35-year-old Canadian earning $150,000 today, planning to retire at 65, planning for the portfolio to last to age 95.
That’s a 30-year retirement.
Annual spending in retirement. Take 75% of pre-retirement income as a starting point. This is a common assumption that your costs in retirement are lower than pre-retirement because your house is likely paid off, your kids are out of the house and retirement contributions stop. That’s $112,500 per year, in today’s dollars.
Real rate of return. Use 3% real rate of return. That’s slightly above the FP Canada balanced-portfolio assumption after fees, and a reasonable middle-ground number for a long-horizon plan.
Planning horizon. 30 years.
Plug into the formula:
So at age 65, on a fully self-funded basis, this person needs roughly $2.2 million in today’s dollars to fund $112,500 of annual spending for 30 years.
That’s the raw number, but it’s not the whole story. The same person also gets CPP and OAS, and that meaningfully reduces what the portfolio has to cover.
Assume this person qualifies near the CPP maximum and adds OAS with some clawback — call it $24k per year combined, in today’s dollars. The portfolio now needs to fund only $88,400 per year. The real number to write down is about $1.73 million in today’s dollars at age 65.
For a $150,000 earner, that works out to a portfolio target equal to roughly 11.5 times current salary at age 65. The popular American rule suggests 8–10x. The Canadian math, with current Canadian inputs, says the target is meaningfully higher.
The salary-multiple-at-35 question, which is where this series started, gets answered properly in Part 4. We go a little deeper once we work through how the future value math gets you from here to there. The short version is that the multiple at 35 depends heavily on how aggressively you’ve already been saving and how much time is left before retirement. Generic age-banded multiples are weaker as guidance than the underlying math suggests.
Why this matters
The point of this exercise isn’t to make Canadians anxious about their retirement targets. The point is that the rules-of-thumb being repeated across financial content sites were built for someone else’s retirement system, and using them as your benchmark introduces an error you can’t see and can’t correct for.
The error runs in one direction for most of the audience searching these questions, which is toward an artificially low target. A household using the American 8x rule at 65 might land on $1.2 million for a $150,000 earner. The Canadian math, with current numbers, says closer to $1.7 million. Half a million dollars of difference, sitting inside an unstated assumption.
You don’t need to take any specific number from this post and bolt it onto your life. The example uses one set of assumptions; your situation uses another. The point is that the assumptions are the work. Once you know what they are, you can run the calculation honestly, and the answer you get is yours.
Part 3 of this series digs into which of these assumptions matter most. Some of them move the number a lot. Others barely move it at all — and the order of impact is not what most people expect.
For now: the rules of thumb are a starting point, not an answer. The Canadian math, with Canadian inputs, is the answer.
If you would like to understand more about what numbers are right for your life, feel free to run through it on YouGotThis.
See your full picture — investments, debt, retirement, education, estate — in one view, and explore what different assumptions would actually cost.
Get started free →This article is for educational purposes only and does not constitute financial, investment, tax, or legal advice. The illustrative examples use simplifying assumptions that may not reflect any individual’s circumstances. Consider speaking with a qualified professional about your own situation.