Aussie FIRE | Financial Independence Retire Early

62. Is the 4% rule for early retirement still relevant?

11 snips
Feb 20, 2026
They trace the origins of the 4% withdrawal rule and why critics worry about very long retirements and sequence-of-returns risk. They explain portfolio allocation choices, practical cash buffers, and automated sell strategies to avoid selling in downturns. They highlight how spending flexibility and behavioural responses matter more than fixating on a single percentage.
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INSIGHT

Origin And Core Assumptions Of 4% Rule

  • The 4% rule originated from Trinity University backtests showing ~95–98% success over 30 years for 75–100% stock portfolios.
  • It assumes a 30-year horizon, yearly inflation adjustments, and worst-case historical sequences including crashes and inflation spikes.
INSIGHT

Longer Horizons Amplify Sequence Risk

  • Early retirees face longer horizons which expose them to greater sequence-of-return risk if they assume a 30-year model.
  • Starting valuations and bad returns early in retirement can deplete portfolios faster than classic 4% tests suggest.
ADVICE

Maintain A Cash Buffer And Automated Top‑Ups

  • Keep a portion of your portfolio in safe liquid assets to avoid selling during crashes and reduce psychological stress.
  • Sell from growth assets periodically to top up a cash buffer and cover planned spending for the year.
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