One of the most common questions in retirement planning is:
How much can I withdraw from my savings each year without running out of money?
The 4% rule is a simple guideline designed to answer that question. While it’s not perfect, it provides a helpful starting point for planning retirement income.
What Is the 4% Rule?
The 4% rule suggests that:
You can withdraw 4% of your retirement savings in the first year of retirement, then adjust that amount each year for inflation.
This approach is designed to make your savings last about 30 years.
Example
If you retire with:
- $500,000 in savings
- 4% of $500,000 = $20,000
You would withdraw:
- Year 1: $20,000
- Year 2: $20,000 plus inflation adjustment
- Year 3: Previous amount plus inflation
- And so on
The goal is to maintain your purchasing power while giving your investments time to grow.
Where the 4% Rule Comes From
The rule is based on historical market data using a mix of:
- Stocks (for growth)
- Bonds (for stability)
Historically, a balanced portfolio following this strategy had a high probability of lasting 30 years or more, even through market downturns.
How the 4% Rule Fits with CPP and OAS
For Canadians, retirement income usually comes from multiple sources:
- Canada Pension Plan (CPP)
- Old Age Security (OAS)
- Workplace pensions (if any)
- Personal savings (RRSP, RRIF, TFSA)
The 4% rule applies only to your personal savings.
Example
If you have:
- CPP + OAS: $18,000 per year
- Savings: $500,000
- 4% withdrawal: $20,000
Your total income would be:
$18,000 + $20,000 = $38,000 per year
This helps you estimate whether your retirement income will meet your needs.
Important: Taxes Matter
If your savings are in:
- RRSP or RRIF → withdrawals are taxable
- TFSA → withdrawals are tax-free
RRIF withdrawals also count toward your income and may affect:
- Your tax bracket
- Income-tested benefits
- OAS clawback if income becomes too high
This is why withdrawal planning matters — not just the percentage.
When the 4% Rule May Be Too High
The rule is a guideline, not a guarantee. A lower withdrawal rate (3–3.5%) may be safer if:
- You retire early (before 60)
- You expect to live well into your 90s
- Markets perform poorly early in retirement
- You want to leave an inheritance
- Your investments are conservative
When You May Be Able to Withdraw More
You might withdraw more than 4% if:
- You retire later (65–70)
- CPP and OAS cover most of your expenses
- You plan to spend more in early retirement and less later
- You are comfortable adjusting spending if markets decline
A Canadian Reality Check
The 4% rule works best when combined with government benefits.
Because CPP and OAS provide lifetime indexed income, many Canadians can safely rely on:
- Government benefits for basic expenses
- Investment withdrawals for lifestyle spending
This reduces the risk of running out of money.
A Simple Planning Shortcut
To estimate the savings you need:
Annual income needed from savings ÷ 0.04
Examples:
- Need $10,000 → $250,000 savings
- Need $20,000 → $500,000 savings
- Need $30,000 → $750,000 savings
Limitations of the 4% Rule
The rule does not account for:
- Changing spending needs
- Taxes
- OAS clawback planning
- Market timing risk
- RRIF minimum withdrawals after age 71
In real retirement planning, withdrawals should be adjusted based on:
- Market performance
- Your income level
- Tax efficiency
- Age and life expectancy
The Bottom Line
The 4% rule is a useful starting point for estimating retirement income from your savings.
But for Canadians, the best approach is to combine:
- CPP and OAS for stable lifetime income
- Tax-efficient withdrawals from RRSP, RRIF, and TFSA
- Flexible spending based on market conditions
Retirement success isn’t just about how much you saved — it’s about how you manage withdrawals over time.
