What’s Your Number?

The importance of planning and going beyond “rules of thumb”

Rules of Thumb

Many “rules of thumb” attempt to help guide us toward a successful retirement; perhaps you’ve heard of some of them:

  • You will need 70-85% of your pre-retirement annual income in retirement.
  • By age 50, you should have saved enough to equal six times your salary. By age 60, your savings should be eight times your salary. Finally, you should have 10 times your final salary in savings by the time you retire.
  • An annual portfolio withdrawal rate of 4% is ideal.
  • Your portfolio should generate enough in dividend and interest income to sustain you.

While coming up with these numbers (based on rules of thumb) can provide a reference point for what has generally worked for some people, in truth they are broadly accurate principles that do not directly apply to you or your situation. Meaning they are unlikely to be very useful in helping you achieve your specific goals or assess where you currently stand.

In addition, let’s be honest, rules of thumb are not only loosely applied generalizations, they are lazy. The implication is that, rather than doing the work to figure out what is truly best for your situation, you can simply apply a loose guideline and call it good. In reality, you will need to examine your situation, rather than the general circumstances of others, in order to make a genuine assessment of your retirement readiness. This means closely evaluating your lifestyle, your resources, and your objectives while making reasonable assumptions for factors such as longevity, inflation, and investment returns.

Planning

A quality financial plan will address all of these concerns, which really boil down to three important questions: 

  • How much income will you need when you retire? (Read this)
  • How much capital do you need to save or accumulate for retirement?
  • What is a safe distribution strategy or what is the optimum distribution strategy for you?

When we analyze a client’s on-track status for retirement, using meaningful and carefully considered data and assumptions, we are able to provide them with a Probability of Success. To do so, we first compile all of their information, quantify their goals, and make reasonable assumptions. Next, we run their plan through a thousand random and varied scenarios to see how many trials succeed. The resulting number of successful trials gives us their Probability of Success, which lets the client gauge how on-track they are and whether adjustments should be made to strengthen their plan. We can also see how each adjustment (delaying retirement, saving more, spending less, etc.) impacts their plan and Probability of Success. While this does require more work, you will find that this number is much more useful than one produced by applying a simple rule of thumb.   

Summary

To illustrate the importance of planning, a study in 2006 by Annamaria Lusardi and Olivia S. Mitchell found that investors who had taken even a small amount of time to do some planning, ended up with two- to three-times more money at retirement than investors who chose not to plan at all. If that isn’t a compelling reason to put in the work, I don’t know what is.

Now that you understand the importance of taking the time to put together a well-thought-out plan, please remember this: planning is a process. The plan itself has no real value. The value comes from taking the time to examine where you are and where you are headed, evaluating the plan regularly, making adjustments as needed, and staying disciplined.

So, what is your number (i.e. probability of success)? If you don’t know the answer, we are happy to help.

Megan Nichols, CFP®

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