Coasting to FI: Compounding my way to Coast FIRE and $1 Million

Reading, Read, Peaceful, Woman, Dusk

“One minute of patience, ten years of peace.”  – Greek Proverb

Patience and perseverance have a magical effect before which difficulties disappear and obstacles vanish.” —John Quincy

It was a hot summer day. Same as any other. I was busy working as usual.

I have been working so hard since I was like 5 years old. That was the age that I decided I was going to be rich.

I used to go outside and play on the playground every day. Those were some of the most important days of my life. I learned so much on the playground. The virtue in helping others, sharing, caring, making friends, solving conflicts and exercise.

Nothing came easy. You had to earn every inch when playing sports with other kids whether it was jumping rope or running. You played to win.

I was always pretty good at academics so I put a lot of my energy into that. I figured that could be my path to riches. It turns out I was right.

I was working 8-hour days and studying up to 8 hours a day in college. At one point, just a couple years ago I was reading 25-50 books a year.

I had a hunger for knowledge; especially, personal finance.

Once I learned what compound interest was, I knew I found my road to wealth. I would save and invest money consistently until interest would do the rest for me on my journey to $1 million dollars.

I had been grinding it out so long that sometimes the days blurred and I feel asleep at night from pure exhaustion. Then one day I looked up and realized I had made it to Coast FIRE.

Coast FI refers to saving enough to “coast” to financial independence. This allows participants in this version of FIRE (financial independence, retire early) to take jobs with less stress or pay due to reaching a certain amount of money needed to retire earlier than age 65.

Coast FIRE is a sub-genre of this early retirement movement. This version calls for having enough invested or saved so that without adding another penny of contributions to your retirement portfolio it will still grow to fully support retiring at a traditional retirement age. Your nest egg, simply put, has reached a tipping point so that it will “coast” to the target amount needed for retirement.

People who have successfully achieved their Coast FIRE (like me) still need to work, but they only work to cover current living expenses – not to build up their savings or investments for a future retirement.

The thing about Coasting to FI is that you must first do this before you can get to any of the other versions of complete financial independence; never having to work again – such as Fat FIRE, Lean FIRE, or Barista FIRE. Where compounding does the heavy lifting for you.

FIRE requires you to save up at least 25 times your anticipated annual spending and you have got a 97% or better chance of that money lasting at least thirty years. 

Fat FIRE typically means a budget of $100,000 a year, which requires a retirement savings of $2.5 million.

Lean FIRE typically involves being frugal and living in a lower-cost area, or even other countries with a lower cost of living with a budget of $30,000-$50,000 a year, which can require a retirement savings of a minimum $500,000 to $750,000.  

Barista FIRE is a hybrid between Fat FIRE And Lean FIRE. Barista FIRE is being able to retire before the conventional age of 60+, but taking on a part-time job for supplemental income and potentially health insurance. You will need to have at least $1 million in retirement accounts.

Coast FIRE requires you to save a certain dollar amount that will allow you to coast to FI such as saving $200,00, which will allow you to coast to $1 million in 15 years with a 10% rate of return.

 Coast FIRE formula for determining how large the participant’s nest egg must grow would begin with a regular FIRE number (estimated in the example below at 25 times annual spending of $50,000). In the formula below, note that “Years to grow” is an exponent.

25 x $50,000 / (1 + annual growth rate)Years to grow = Coast FIRE number

Suppose someone estimates they need 30 years to reach their Coast FIRE number and an average annual growth rate over those 30 years of 7%. The calculation would then be:

$1,250,000 / (1 + 0.07)30 years = $164,209

In this example, the Coast FIRE number would be $164,209, which would grow over 30 years (given the above-stated estimates) to the target figure (or regular FIRE number) of $1,250,000.

I like to use the $1,000,000 target for my estimate. The calculation would then be:

$1,000,000 / (1 + 0.07)30 years = $131,367

If you want to retire sooner, then just see what a different target number will do or by shortening the number of years.

For example, $1,000,000 / (1 + 0.07)20 years = $258,419. That means your Coast FIRE number would be $258,419.

Once you reach this dollar amount, you could stop investing in your retirement accounts and reach $1 million in 20 years. The higher the compound interest rate, the quicker you are able to get out of the rat race.

Once I hit $300,000 in cash and investments, I knew that with a 10% rate of return that it could turn into $1 million in 12.5 years.

$1,000,000 / (1 + 0.10)12.5 years = $303,802.

Paying off debt faster and more aggressively plus investing those funds and more could allow folks like me to get to $1 million in less than a decade.

I can now put on my eye mask, kick back and coast to $1 million. If I can do it, then anyone can.

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I started with $0 in retirement savings. I started stashing money into my 401(k) and then opened a Roth IRA to start saving even more.

If you want to coast to FI, then let compound interest do the heavy lifting for you, save $100k because the first $100k is the hardest, and allow it to coast you to $1M in 30 years.

Happy wealth coasting!

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