There’s a retirement idea getting a lot of attention lately, especially among younger savers. The concept is simple: What if you could reach a point where you never had to save another dollar for retirement?

It’s called Coast FI, short for “Coast Financial Independence.”

The idea is that you save and invest enough early in life that, even if you stop contributing to retirement accounts, your investments should have enough time to grow into what you will need when you retire.

In other words, you’ve done the heavy lifting early. Now you let time and compound growth do the rest.

It sounds appealing. And there is a valuable lesson behind it. But I would be careful about treating any retirement formula as a finish line.

Why This Matters

Here’s a simple example.

Suppose someone is 40 years old and has $500,000 invested for retirement. They plan to retire at 65.

If that money earns an average of 7% per year, it could grow to more than $2.7 million by age 65—even if they never add another dollar.

That’s the basic idea behind Coast FI.

Once you reach your “Coast FI number,” you may have more freedom with the money you earn today. Maybe you take a lower-paying job you enjoy more. Maybe one spouse stays home with the kids. Maybe you start a business, work fewer hours, or simply spend a little more and save a little less.

There’s a lot to like about that way of thinking.

The problem is that retirement rarely follows a neat mathematical formula.

Investment returns can be lower than expected. Inflation can be higher. You may retire earlier than planned. You may live longer than expected. Taxes can change. And health or long-term care expenses can become a major part of the picture.

There’s also an important difference between having a large retirement account and having a complete retirement plan.

Where will your income come from each month? When should you claim Social Security? How will taxes affect withdrawals? What happens if one spouse needs long-term care? What happens financially when the first spouse dies?

Those questions become increasingly important as retirement gets closer.

Coast FI can be a useful measuring stick. But I wouldn’t view it as permission to put your retirement planning on autopilot.

Simple Lesson

The earlier you save, the more time can do the work for you—but retirement planning is about more than reaching one magic number.

Compound growth is incredibly powerful. Giving your money 20, 30, or 40 years to grow can dramatically change your financial future.

But a good retirement plan also needs enough flexibility to handle the things you cannot predict.

Action Step

Take a look at what you have saved and ask a slightly different question.

Instead of simply asking, “Do I have enough?” ask, “If life doesn’t go exactly as planned, do I still have enough?”

Run the numbers using more conservative investment returns, higher inflation, a longer life expectancy, and possible long-term care expenses.  If you need some math help, here’s a “Coast FI Calculator” that allows you to play with the numbers.

If the plan still works, you may have something even better than a Coast FI number—you may have real financial flexibility.

If this topic raises questions for you or your family, feel free to call (517) 548-7400 or contact us online: https://www.michiganestateplans.com/contact-us