Lean FIRE

Lean FIRE is a variant of the FIRE movement where individuals retire early on a minimal, frugal budget — typically defined as annual retirement spending below $40,000 (for a single person in the US) or below $60,000 for a couple. The FIRE number for Lean FIRE is generally under $1,000,000.

Lean FIRE practitioners embrace intentional minimalism as a lifestyle choice, not deprivation. They tend to live in low cost-of-living areas, own homes outright, have few or no dependents, and focus on free or low-cost activities and experiences rather than material consumption.

The primary advantage of Lean FIRE is speed — a lower FIRE number means reaching financial independence years or decades earlier than those pursuing higher spending levels. The primary risk is that a lean budget leaves little buffer for unexpected expenses, healthcare costs, or lifestyle changes.