The nest egg you need to live off investments — roughly 25× your annual expenses.
Your FI (financial independence) number is the amount of invested assets that could cover your spending indefinitely. Using the 4% rule, it is about 25 times your annual expenses — the point at which work becomes optional because your portfolio can sustainably fund your life.
If you spend $60,000 a year, your FI number is about $1.5 million (60,000 × 25).