Safe Withdrawal Rate

The percentage of a portfolio that can be spent annually with low depletion risk.

What is Safe Withdrawal Rate?

The '4% rule' from the Bengen and Trinity studies: withdraw 4% of the initial balance, adjust for inflation, and historically the portfolio lasted 30 years. It is a research finding under specific assumptions, not a guarantee - low starting yields, longer retirements, and fees all pressure it.

Safe Withdrawal Rate: a worked example

$1,000,000 supports about $40,000 in year one, rising with inflation thereafter.

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