How long will $500,000 last using the 4% rule?
With the 4% rule, a $500,000 portfolio is commonly used as a rough 30-year guideline of withdrawals. The first-year withdrawal would be $20,000. In later years, that dollar amount is adjusted for inflation. The rule is as a general planning shortcut — rather than an exact guarantee.
How much is it possible to withdraw from $500,000 under the 4% rule?
The calculation for the first year is direct — 4% of $500,000 equals $20,000.
| Starting balance | First-year withdrawal at 4% | Monthly equivalent |
|---|---|---|
| $500,000 | $20,000 | about $1,667 |
That monthly number represents the withdrawal before taxes. It also assumes you pull from the savings on a regular schedule rather than taking out large lump sums unexpectedly.
Why does the 4% rule point to roughly 30 years?
This framework is popular, as it was tested against a standard 30-year retirement timeline. The core action is to withdraw 4% in year one, then raise that distinct dollar amount to keep up with inflation — leaving the rest of the funds invested.
A standard scenario can be summarized as follows:
Year 1 — $20,000
Year 2 — $20,600, assuming a 3% inflation rate
Year 3 — Adjusted again for that year's inflation
The account balance won’t fall by the exact same amount each year. Market performance, inflation rates, and account fees, as well as taxation, all naturally pull the balance in distinct directions.
Will $500,000 always last 30 years?
No. The funds sometimes last longer or they could run out sooner in accordance with the factors outlined below:
Investment returns
Withdrawal habits
Inflation rates over time
Account fees
Taxes on the distributions
The portion of the living costs covered by Social Security & pensions or other income sources
Thanks to the listed variables, the 4% rule works best as a starting estimate. Someone with low fixed costs with outside income may find it comfortable. Someone with high medical bills and a large mortgage or poor market returns will likely require a lower withdrawal rate.
Is the 4% rule still a safe rule of thumb?
It is a widely accepted starting point — though newer research favors a more flexible approach rather than a single fixed rate. Specific models suggest a rate slightly below 4% for recent retirees, in parallel to the portfolio makeup & market conditions. For instance, Morningstar’s 2025 retirement-income research indicated 3.9% as a baseline starting rate for a 30-year retirement window.
Why contact Dimov Partners?
Dimov Partners is available to review the retirement withdrawal plan to confirm if it holds up once housing costs and taxes, as well as other cash needs, are factored in. Before a major purchase or relying heavily on savings for living costs, you can reach out for a direct review of the numbers.