One of the most common questions in personal finance is "how much do I need to retire?" The answer depends on your desired lifestyle, life expectancy, and investment returns. This guide covers the key concepts and gives you a framework to calculate your own number.
For a personalized projection, use our Retirement Calculator with data from the US, UK, Canada, and Australia.
The 4% Rule
The 4% rule comes from the Trinity Study (1998), which found that withdrawing 4% of your portfolio in the first year of retirement (adjusted for inflation each year) gives you a high probability of not running out of money over 30 years.
To calculate your target: Target Savings = Annual Expenses ÷ 0.04
Example: If you need $50,000/year in retirement (including health care, travel, and everyday expenses):
$50,000 ÷ 0.04 = $1,250,000
With Social Security benefits (average ~$22,000/year in 2026), you'd need less from your own savings. If Social Security covers $22,000, you only need $28,000 from savings: $28,000 ÷ 0.04 = $700,000.
Social Security
Social Security is a critical piece of retirement income for most Americans. In 2026:
- Full Retirement Age (FRA) is 67 for those born in 1960 or later
- Early retirement at 62 reduces benefits by about 30%
- Delaying to 70 increases benefits by about 24%
- Maximum monthly benefit at FRA: approximately $3,950
- Average monthly benefit: approximately $1,830
Your decision on when to claim Social Security is one of the most important retirement choices you'll make.
Tax-Advantaged Accounts
Maximize these retirement accounts to minimize taxes:
- 401(k): $23,500 contribution limit for 2026 ($31,000 if 50+)
- IRA: $7,000 limit for 2026 ($8,000 if 50+)
- Roth accounts: Tax-free growth and withdrawals
- HSA: Triple tax advantage if used for medical expenses
A Roth vs Traditional decision depends on your current vs expected future tax bracket. Our After Tax Calculator can help you estimate your current tax situation.
The Power of Starting Early
Starting at 25 vs 35 makes a massive difference. Assuming 7% returns:
| Start Age | $500/mo At 67 | Total Invested |
|---|---|---|
| 25 | $1,525,000 | $252,000 |
| 30 | $1,042,000 | $222,000 |
| 35 | $703,000 | $192,000 |
| 40 | $466,000 | $162,000 |
| 45 | $302,000 | $132,000 |
Starting 10 years earlier means more than double the retirement savings with only slightly more total contributions.
International Retirement Systems
Our Retirement Calculator supports four countries:
- USA: Social Security + 401(k)/IRA
- UK: State Pension + Workplace Pension (auto-enrollment)
- Canada: CPP/QPP + OAS + RRSP/TFSA
- Australia: Age Pension + Superannuation (SGC)
Plan Your Retirement
Use our Retirement Calculator to project your savings, see the impact of inflation, and find your target retirement age.