Ask people how much they need to retire and they’ll name a number. Die With Zero reframes the question. The important thing, Bill Perkins argues, isn’t a number — it’s a date: the point where your net worth should peak and you start spending more than you earn.

Why a date, not a number

Your ability to enjoy money declines with age and health. Ten thousand dollars buys a very different experience at 50 than at 85. So past a certain point, every extra dollar saved buys less life, not more. Your peak is the moment to switch from building wealth to using it — and it depends on your body’s timeline more than your account balance. Perkins suggests that for many people it falls somewhere between their mid-40s and 60.

Working out yours

  • Know your survival cost. Estimate what it costs per year to live the way you want in retirement, where you plan to live.
  • Get honest about health. Your biological age, family history and current fitness all move your peak.
  • Map your favourite activities to your health curve. When will the things you love start getting noticeably harder?
  • Protect the downside. The book points to tools such as annuities so spending down never means running out.

The hard part

Stopping accumulation feels unsafe, especially for people who are good at saving. That psychological resistance is real — and it is one of the things the Die With Zero podcast keeps coming back to with its guests.

This is general information about the ideas in a book, not financial advice. Talk to a financial planner about your own situation.