Is $500K enough to retire?

Start with the gap that $500,000 must cover

Suppose retirement spending is $4,500 per month and dependable income is $3,500. The portfolio supplies a $1,000 monthly gap before considering changing costs. A household spending $6,500 with only $2,000 of income asks far more of the same balance.

These examples illustrate the relationship; they are not conclusions about how long $500,000 will last. Investment returns, the timing of income, debt, healthcare, housing, taxes, and the planning horizon can all change the outcome.

Five variables that can reverse the answer

1. Retirement age. Retiring at 62 requires more years of funding than retiring at 67.
2. Social Security timing and amount. A later benefit can improve long-term income while increasing the bridge funded from assets.
3. Housing. Rent, mortgage, property costs, and maintenance can make identical portfolios support very different lifestyles.
4. Healthcare. Routine healthcare belongs in the baseline budget; paid long-term care is a separate scenario rather than an invisible assumption.
5. Other dependable income. A pension or time-limited income stream reduces withdrawals only while it is actually being paid.

Why “$20,000 per year under the 4% Rule” is not the full answer

Multiplying $500,000 by 4% produces $20,000, but that shortcut does not establish that the plan is funded. It does not by itself model when Social Security starts, when debt ends, how healthcare changes, or whether the plan must last to age 90.

BonusMetric uses the same canonical annual cash-flow engine for the Baseline and both sensitivity scenarios. It does not display a competing safe-withdrawal-rate answer.

How long might $500,000 last?

The responsible answer is a range derived from your inputs, not a universal number of years. The calculator reports the first modeled depletion age if assets run out. If they do not, it reports the ending balance at the chosen planning age.

Use the result to identify the strongest lever

Test one change at a time: a later retirement date, an additional monthly contribution, lower discretionary spending, reduced housing costs, or debt payoff. A change that materially extends runway is more informative than a generic claim that $500,000 is either enough or not enough.

If the key question is longevity rather than the starting amount, use the guide to understand retirement runway.