Lean, Coast, Barista, Full, Fat: Which Type of Financial Independence Are You Aiming For?

“Financial independence” sounds like a single destination, but it isn’t. The FI number for someone who wants to live simply on $35,000 a year looks very different from the number for someone planning to spend $120,000 a year in early retirement. And there are paths — like Coast FI and Barista FI — where the goal isn’t even to stop working, but to stop needing to save, or to keep working part-time while the portfolio carries the rest.

The five main FI archetypes have different targets, different timelines, and appeal to different people. Knowing which one fits your life changes how you plan.

Lean FI

Lean FI means your investments cover a modest, essentials-focused budget — housing, food, healthcare, transportation, not much else. A common Lean FI target in the US is around $800,000–$1,000,000, supporting annual spending in the $32,000–$40,000 range.

The appeal is speed. Because the target is lower and the savings rate required to reach it tends to be high, Lean FI is the fastest path to getting off the treadmill. The trade-off is real: there’s limited buffer for unexpected expenses, and any lifestyle inflation after reaching FI can create pressure.

This path fits people who genuinely value minimalism, who are comfortable in low-cost environments, or who need to exit their current work situation quickly and are willing to optimize hard for speed.

Coast FI

Coast FI is different in kind from the others. The goal isn’t to accumulate enough to live on now — it’s to invest enough now that, left to compound untouched until traditional retirement age (around 65), your portfolio will grow into a full retirement number without you adding another dollar.

Once you’ve hit your Coast FI number, you only need to cover your current living expenses through work — not save on top of them. For many people, that changes everything: it opens the door to lower-stress, lower-paying work, career pivots, or going part-time while the investments do the long-term heavy lifting.

Someone in their early 30s might reach Coast FI with $200,000–$400,000 invested, depending on their target spending in retirement and how many years the portfolio has to compound. It’s often reachable much earlier than people expect.

Barista FI

Barista FI is a halfway house between still-working and fully-independent. The idea: build a portfolio large enough that, combined with part-time work that covers part of your expenses, your investments cover the rest at a 4% safe-withdrawal rate. The name comes from the iconic example of working a coffee-shop job partly for the income, partly for the health insurance, while the portfolio carries the heavy lifting.

The math is straightforward. If your annual expenses are $60,000 and you expect part-time work to bring in $20,000, you need your portfolio to cover the remaining $40,000 — that’s a $1,000,000 target at the 4% rule. Compare that to Full FI’s $1,500,000 target for the same spending: Barista FI gets you there meaningfully faster, in exchange for keeping a foot in the workforce.

This path tends to resonate with people on long Full-FI timelines who don’t actually want to stop working entirely — or who want a softer landing where they can scale down from a stressful career into work that feels lighter. It also de-risks the plan: continuing income in early retirement years is one of the most powerful safeguards against sequence-of-returns risk.

Full FI

Full FI is what most people picture when they hear “financial independence.” Your investment portfolio, sized at 25 times your current annual expenses (the 4% Rule), fully covers your lifestyle. Work is optional. You could stop today and not run out of money.

For a household spending $60,000 a year, that’s a $1,500,000 portfolio. For $80,000 in annual spending, it’s $2,000,000. The number scales directly with expenses, which is why savings rate — which compresses both the target and the time to reach it — matters so much.

Full FI is the most common target because it’s the most legible one: it maps directly to your current life, no lifestyle changes required on either side of reaching it.

Fat FI

Fat FI means targeting a portfolio large enough to support a lifestyle more expansive than your current one — more travel, more generosity, a bigger home, more cushion against healthcare costs or market downturns. Typically this means multiplying annual target spending of $100,000 or more by 25, resulting in portfolio targets of $2,500,000 and up.

It takes longer, by definition. But it also provides something the other paths don’t: a lot of room for things to go wrong. For high earners who want to retire without any financial anxiety, Fat FI can be worth the longer runway.

How to Choose

The right path isn’t the one that sounds most impressive or most virtuous — it’s the one that honestly reflects how you want to live. Some people genuinely thrive on simplicity and would find Fat FI targets alienating. Others would find Lean FI too constrained to feel like freedom.

The independence.money calculator lets you model all five. Enter your numbers, switch between paths, and watch your FI target and projected timeline update. The most useful thing that usually happens: people discover that Coast FI is much closer than they thought, that Barista FI cuts a long Full-FI timeline roughly in half, or that the gap between Lean and Full FI is smaller than expected. That clarity tends to make the whole thing feel more achievable.