What is Flamingo FIRE and how does it work?
Flamingo FIRE is a hybrid strategy where you save to 50% of your full FIRE number, then semi-retire — letting compound growth double that amount over roughly 10 years while you work part-time. At a 7% real return, money doubles in about 10.2 years, so reaching half your number today means full financial independence a decade later without saving another dollar.
Formula
Flamingo Number = Full FIRE Number ÷ 2. Years to Full FIRE after hitting Flamingo = 72 ÷ expected real return rate
Example
Annual expenses: $60,000. Full FIRE number at 25x = $1,500,000. Flamingo FIRE number = $750,000. At 7% real return, $750,000 doubles to $1,500,000 in 10.2 years (Rule of 72 ÷ 7). You semi-retire at $750,000, work a low-stress job covering daily expenses, and reach full FIRE at year 10 without contributing another dollar.
How it works in detail
Flamingo FIRE sits between Coast FIRE and full FIRE on the financial independence spectrum. The name reflects the idea of 'one-legged' retirement — you're half in, half out. The mechanics rely on the Rule of 72: at a 7% average real return, a portfolio doubles every 10.2 years. So if your full FIRE number is $1.5 million, reaching $750,000 in invested assets means you can stop aggressive saving, downshift to part-time or passion work, and let compounding do the rest. Unlike Barista FIRE — where part-time income covers ongoing expenses — Flamingo FIRE is specifically defined by the 50% portfolio milestone rather than income coverage. Once you hit the flamingo threshold, your timeline to full FIRE is locked regardless of whether you earn anything at all, though continued earnings accelerate the date. Researchers like Karsten Jeske (Big ERN) note that sequence-of-returns risk is lower during the coast/flamingo phase because you're not drawing down the portfolio. The primary risk is underestimating future spending or assuming too high a real return. Using a conservative 5–6% real return rather than 7% adds 2–4 years of buffer to your timeline, which most planners recommend for safety.
Use Rightmont's FIRE calculator to find your Flamingo number and model your semi-retirement timeline.
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What is Coast FIRE and how much do I need?
Coast FIRE is the invested balance today that will compound to your FIRE number by retirement age without any additional contributions. If your FIRE number is $1.5M and you're 30 with a 7% real return, you need $194,000 today to coast — meaning you only need to earn enough to cover current expenses.
What is Barista FIRE and how much do I need?
Barista FIRE means retiring from your full-time career with a partially-funded portfolio and covering the gap with part-time income. A typical Barista FIRE target is 50–75% of your full FIRE number — often $500,000–$750,000 for someone who needs $40,000/year — with part-time work covering the remaining $10,000–$20,000 annually.
What is the 25x rule for retirement?
The 25x rule says you need to save 25 times your annual expenses to retire safely. It is derived from the 4% safe withdrawal rate: if you withdraw 4% of your portfolio each year, a portfolio 25x your expenses lasts 30+ years with high historical success rates.
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