What Is Your Retirement Number?
What Is Your Retirement Number? One of the most common questions people ask me as a financial advisor is, “How much do I need to retire?” While it’s tempting to give a single number—like $1 million or $2 million—the truth is, the right answer is: It depends. That’s because everyone’s retirement number is different. Your retirement number is the amount of money you’ll need saved by the time you retire to support the lifestyle you want, with minimal risk of running out of money.
Let’s break down what this means and how to calculate your retirement number.
What Is a Retirement Number?
Your retirement number is the size of the investment portfolio you’ll need at the start of retirement to generate enough income to bridge the gap between your annual living expenses and your guaranteed income sources, such as Social Security, pensions, or annuities.
This number isn’t about achieving some abstract financial milestone. It’s a personalized target that reflects your lifestyle, goals, expected lifespan, inflation, and financial safety net. Knowing your number helps you set realistic savings goals and plan with confidence.
Why Everyone’s Number Is Different
Every individual or couple has a different combination of the following factors:
- Living expenses: Your number will be higher if you plan to travel extensively, support children or grandchildren, or live in a high-cost area.
- Guaranteed income: If you have a generous pension or expect higher Social Security benefits, you’ll need to rely less on your investment portfolio.
- Lifestyle goals: Early retirement, philanthropy, or legacy goals (like leaving money to heirs) all increase your retirement number.
- Health and longevity: The longer you expect to live, the more you’ll need to save to avoid outliving your assets.
- Risk tolerance and investment returns: Conservative investors may need a larger nest egg because they expect lower returns.
Calculating Your Retirement Number: A Step-by-Step Guide
To find your retirement number, you’ll need to estimate three key figures:
- Your annual retirement expenses
- Your guaranteed retirement income
- The gap your portfolio needs to cover
Let’s walk through a specific example to bring this to life.
Example: Bridging the Income Gap
Let’s say you’re planning for a comfortable retirement that includes travel, hobbies, healthcare, and all the essentials. After careful budgeting, you determine that you’ll need $100,000 per year to support your retirement lifestyle.
Now, let’s say you expect to receive:
- $40,000 per year from Social Security
- $20,000 per year from a pension
That gives you a total guaranteed income of $60,000 per year.
But your expenses are $100,000 per year, meaning there’s a $40,000 gap each year that needs to be funded by your investment portfolio.
Using the 4% Rule to Estimate Your Portfolio Needs
One of the simplest and most widely used rules of thumb in retirement planning is the 4% rule. This rule suggests that you can withdraw 4% of your retirement portfolio in your first year of retirement and adjust that amount for inflation each year afterward, with a reasonable expectation that your money will last for at least 30 years.
So, if you need to withdraw $40,000 per year from your portfolio, we know that at a 4% withdrawal rate, you will need $1,000,000 in that portfolio.
This portfolio, combined with your guaranteed income sources, would give you a total of $100,000 per year, which meets your projected expenses.
Caveats to the 4% Rule
While the 4% rule is a useful starting point, it’s not a perfect fit for everyone. Here are a few important considerations:
- Market fluctuations: If you retire during a market downturn, your portfolio may shrink faster than expected.
- Inflation: If inflation is higher than average (as we've seen in recent years), your purchasing power could erode faster.
- Healthcare costs: These often rise faster than general inflation and can significantly impact your spending.
- Tax implications: Withdrawals from traditional IRAs and 401(k)s are typically taxed as income, reducing your net spending power.
How to Find Your Number
Here’s a simplified roadmap to help you determine your retirement number:
- Estimate Your Annual Retirement Expenses Include housing, food, insurance, taxes, travel, entertainment, and healthcare. Be honest and thorough.
- Add Up Your Guaranteed Income Sources Include expected Social Security, pensions, and annuities. Use conservative estimates.
- Calculate the Gap Subtract your guaranteed income from your expected expenses.
- Apply the 4% Rule (or similar rate) Divide the annual income gap by your chosen withdrawal rate (e.g., 0.04) to find your target portfolio.
Start Planning Today
Your retirement number isn’t just a theoretical figure—it’s your roadmap to financial freedom in your later years. By identifying your income gap and taking steps to close it through disciplined saving and investing, you’ll be far better prepared to enjoy retirement without financial stress.
The earlier you start planning, the easier it becomes. Thanks to compounding, even minor adjustments in your savings rate or investment return can have a significant impact over time.
Final Thoughts
Knowing your retirement number brings clarity to your financial life. It helps you make better decisions about how much to save, when to retire, how to invest, and how to spend in retirement. It's not just about reaching a dollar amount—it's about building a financial future that supports the life you envision.
If you’re unsure where to start, consider meeting with a financial advisor. Together, you can develop a personalized plan based on your goals, income sources, expenses, and risk tolerance. Retirement should be something you look forward to, not something you worry about. The right plan can make all the difference.
Ready to determine your retirement number? Let’s talk.
Written by: Brandon Carter