Most people who ask how much money they really need for retirement expect to be handed a single figure. Joseph Sleep, Financial Planner and Investments Advisor at Buffint, says a figure does exist, but it comes from a few plain questions about the individual rather than from a headline sum in a newspaper. The reassuring part is that those questions can be answered at a kitchen table with a pen and a recent bank statement.
The method below runs from spending to income to portfolio, in that order. Every sum is an illustration of the arithmetic, not a forecast or a recommendation for any particular household.
The planner begins with a year of actual spending, sorted into two piles. Essentials cover housing, utilities, food, insurance, transport and council tax. Discretionary spending covers holidays, gifts, hobbies and eating out. The split matters because essentials have to be paid whatever markets do, while discretionary spending can flex in a poor year.
Retirement spending is rarely a neat fraction of working income. A mortgage may be finished, yet travel often rises in the early years. Using real figures from real statements beats borrowing a percentage from a rule of thumb.
Sleep insists the starting point is simpler than most people expect. “Nobody needs to guess at a number here,” he says. “Pull out twelve months of statements, sort every payment into must pay or nice to have, and you already hold the most important figure in the plan.”
Next comes guaranteed income: the state pension, any defined benefit pension and any annuity. These are subtracted from essential spending first, because they arrive regardless of markets. Anyone stopping work before state pension age also needs to plan how the years in between will be funded.
Take a purely illustrative household with essential spending of $24,000 a year and guaranteed income of $15,000. The essential gap is $9,000. Add $6,000 of discretionary spending and savings must produce $15,000 a year. If the plan assumes drawing 4% of the pot each year, every $1,000 of annual income needs $25,000 behind it, so $15,000 points to a pot near $375,000. The 4% figure is simply a widely used rule of thumb for how much can be drawn each year without running out too soon; it is not a guarantee.
Sleep is quick to put that figure in context. “A figure like that is a starting point, not a verdict,” he explains. “Move the withdrawal rate a little either way and the pot changes by tens of thousands, which is why we treat it as a range rather than a single target.”
The withdrawal rate is an assumption for illustration. What a household can sustain depends on age, how long retirement may last and how markets behave, so the range deserves more attention than the midpoint.
Once the number is clear, portfolio construction becomes a question of giving money a job. A common layout uses three layers. The first is cash covering the next one or two years of withdrawals. The second is steadier holdings, such as bonds or diversified funds, for the medium term. The third is growth assets for the later years, when inflation will have raised the cost of living.
For Mr. Sleep, the first layer does more than any other to keep clients calm. “The cash layer is what lets people sleep,” he says. “When a market drops, the next year or two of income is already set aside, so nothing has to be sold at a bad moment.”
Refilling the cash layer is the routine task. Once or twice a year, the planner tops it up from whichever layer has done best. A limit order is a sensible tool for this, since it sets the lowest price accepted on a sale or the highest paid on a purchase and avoids rushing at whatever price is showing. Reviewing all holdings together at the same moment also makes it easier to see whether the layers still match the plan.
No retirement figure survives unchanged. A yearly review compares actual spending with the plan, updates the value of pensions and savings, and checks whether the amount drawn still sits inside the range. Small adjustments do most of the work: skipping an inflation rise after a weak year, trimming holidays for a season, or drawing slightly less while markets recover.
Sleep believes the strongest plans are the ones that can adapt. “Flexibility is worth more than precision,” he notes. “A plan that can bend by a few per cent in a bad year is far stronger than one that needs everything to go right.”
The practical sequence is short. List essential and discretionary spending from real statements, subtract guaranteed pension income, then turn the remaining gap into a range for the pot using a cautious withdrawal rate. Build the portfolio in layers so that near term income never depends on a good week for markets, and review the whole picture once a year. Done that way, the question of how much is enough becomes a manageable piece of arithmetic specific to one person.
Joseph Sleep is Financial Planner and Investments Advisor at Buffint.com
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