The Formula for Retirement
When it comes to retirement, there are few things more important than having a plan—and the earlier you start, the better. In a recent episode of Your Money, Your Wealth, financial pros we walked viewers through key retirement planning strategies, formulas, and tax moves to help secure long-term financial goals.
The Power of Compound Interest and the Rule of 72
We kicked things off by highlighting compound interest, famously referred to by Albert Einstein as the “eighth wonder of the world.” Unlike simple interest, compound interest grows your money exponentially over time by earning interest on both your initial investment and accumulated interest.
They broke down the Rule of 72, a simple formula to estimate how long it takes for an investment to double. Divide 72 by your expected rate of return: a 7% return means your money will double in about 10 years. But at 2%, it takes a staggering 36 years. Clearly, rate of return and time are your biggest allies.
Start Early, Save Consistently
To drive home the importance of starting early, they compared saving $100 a month beginning at age 25 versus age 35. That 10-year head start could result in an additional $100,000 or more in savings over a lifetime thanks to compounding. Even modest annual increases in savings can have a profound impact on retirement outcomes.
Calculating Retirement Spending and the Shortfall
Next, we explained how to calculate retirement needs. Start with your current expenses and adjust for 3% inflation. Subtract expected income like Social Security, then multiply the annual shortfall by 25 to find your target retirement savings. For example, someone expecting $144,000 in annual expenses with $55,000 from Social Security needs to fund an $89,000 shortfall. Multiply by 25, and you get a $2.2 million savings goal.
Understanding the “Retirement Smile”
Spending in retirement isn’t linear. I want to introduce you to the “retirement smile”: higher spending in early retirement (“go-go years”), a dip during the “slow-go” years, and a rise again due to healthcare costs in the “no-go years.” Many retirees spend more in retirement than they expected, making accurate planning crucial.
Applying the 4% Rule
The 4% rule remains a helpful benchmark. If you retire with $1 million, withdrawing $40,000 per year (4%) gives you a strong chance of not outliving your money, assuming a 6% return. However, the duo stressed that withdrawals should be adjusted dynamically based on market performance and personal needs.
When to Claim Social Security
Social Security claiming strategies also play a huge role. Claiming at age 62 could reduce benefits by 30%, while delaying until 70 can boost payments to 124% of your full retirement amount. We suggested evaluating factors like health, income needs, and whether you’re still working when making this decision.
Reevaluating the Rule of 100
The traditional Rule of 100, which suggests subtracting your age from 100 to determine stock allocation, was challenged. They argued that allocation should reflect individual risk tolerance, goals, and legacy plans. For example, a risk-tolerant investor may opt for more stock exposure, while others may want more cash for security.
Tax Planning and Roth IRA Conversions
One of the most actionable strategies they shared was Roth IRA conversions. With tax rates expected to rise in 2026, converting pre-tax retirement funds now could yield massive long-term savings. Converting in lower tax brackets (like 12% or 24%) today helps reduce your required minimum distributions (RMDs) and future tax bills.
Tax Allocation Across Account Types
Understanding how different accounts are taxed is another key strategy. Use tax-deferred accounts (like IRAs) strategically during low-income years, and prioritize Roth IRAs for tax-free growth. Taxable brokerage accounts provide flexibility but may generate capital gains.
Plan for Longevity
With life expectancy on the rise, couples have a 50% chance one partner will live to 92. We emphasized planning for a longer-than-expected life to avoid outliving your money, especially considering rising healthcare costs.
Use the Retirement Readiness Guide
Finally, the team encouraged everyone to download their Retirement Readiness Guide. It’s packed with practical tools to calculate savings targets, plan withdrawals, and optimize investments for a confident retirement.
Bottom line: Retirement success is about more than just saving—it’s about making smart decisions across the board. The earlier you start, the more prepared you’ll be to live your best retired life.
Intended for educational purposes only. Opinions expressed are not intended as investment advice or to predict future performance. Past performance does not guarantee future results. Neither the information presented, nor any opinion expressed constitutes a solicitation for the purchase or sale of any security. Consult your financial professional before making any investment decisions. Opinions expressed are subject to change without notice.
IMPORTANT DISCLOSURES:
• Investment Advisory and Financial Planning Services are offered through Pure Financial Advisors, LLC. A Registered Investment Advisor.
• Pure Financial Advisors, LLC. does not offer tax or legal advice. Consult with a tax advisor or attorney regarding specific situations.
• Opinions expressed are subject to change without notice and are not intended as investment advice or to predict future performance.
• Investing involves risk including the potential loss of principal. No investment strategy can guarantee a profit or protect against loss in periods of declining values.
• All information is believed to be from reliable sources; however, we make no representation as to its completeness or accuracy.
• Intended for educational purposes only and are not intended as individualized advice or a guarantee that you will achieve a desired result. Before implementing any strategies discussed you should consult your tax and financial advisors.
