Something to think about.
The 4% rule is a starting point. A portfolio with enough money never runs out if well managed.
This is quite obvious and is stated simply to keep us focused on the right thing.
If your requirements are well met with a 4% annual distribution (1% per quarter) and you have some room to flex spending forward or backward along this trend, then you don’t need to worry about a 38% to 50% drawdown…
UNLESS ITS PERMANENT!
Think about a 1% withdrawal every quarter. No more, no less.
If you have a lower balance and you can flex spending back by 90 days, you don’t even NEED to take the 1% draw.
Similarly, if you have flexibility to defer that draw for a year, then you only really need to take 3% for the year (or maybe 2.75%) if you are flexible.
If you think about 4% as a COMFORTABLE target including all manner of discretionary and nice to have budget items covered, simply tightening your belt for a couple quarters could afford you sufficient room to ford any deeper draw downs.
You aren’t withdrawing 4% in a static period, you are taking a draw WHEN you need it.
If your balance is down 38%, you aren’t required to withdraw at that moment, are you?
Along these lines, the short term cash and equivalents that you are likely to be drawing from are not floating along with the longer term investments, so they are not impacted by excessive momentary draw downs.
Let’s assume you are somewhat flexible with your spending above the mandatory minimum monthly and annual payments you must make to eat, retain housing, transportation, insurance, etc.
Also, lets assume that the total of those mandatory payments is comfortably below the 4% that your retirement nut can provide.
Further, let’s assume that you have roughly 5% of your funds in cash, short term equivalents and otherwise liquid like funds.
Now, let’s say on the day before you need to take your next draw, the market falls by 50% to become the largest such fall on record - ever.
Your 5% funds are now worth 10% of your total retirement nut.
Your mandatory expenses are now closer to 5% of your total balance (being more like 2.5% in good times)
Do you run out and withdraw all 5% at this very moment or do you pay out expenses as they come due over the course of 12 months?
In that 12 month period, does the market recover or continue to have PERMANENTLY lost that value?
Also in that period, do you choose to go without the nice to have additional funds or defer discretionary expenditures until the market prices your assets more closely to where you are comfortable selling an allocation?
In this disaster scenario, the 4% withdrawer is still covered for that 12 month period should they withdraw the total of their mandatory and elective expenditures. And they can do with without harming the larger pool of investments in the account.
(in fact, that person can make it 15 months with no issues if there is ANY flexibility)
With a modicum of sense and some concept of what is mandatory, that person can make it almost 2 years at the minimum draw before the non-cash portion of the portfolio is even drawn upon by simply drawing from their cash.
If the portfolio drawdown is permanent, there is no recourse except to reset the 4% budgetary number to the new reality. (effectively 2% of the prior balance)
If the draw down is anything like what we have seen in the last 50 years, it would return to somewhat higher levels over time, supporting incremental withdrawals of .75% per quarter until either the portfolio fully recovers or until you have a chance to realign your lifestyle with the new reality.
In this way, no catastrophic failure would occur in any sort of short time frame. (You can see the train coming and plan accordingly).
Depending on how dire the scenario becomes, any new standard of living commensurate with the new reality of the portfolio’s potential would be realigned with current circumstance and forecasts.
If everything resolves to the positive, then you have survived and are pleasantly surprised.
If conditions persist, you are still far from being a beggar on the street.
— If your portfolio had enough funds at the start–
There is no scenario that will save you from the poor house if a portfolio of insufficient size is your starting point (or retirement day +1)