Retirement planning

The two phases

Accumulation runs from the first contribution to the last day of work. Its levers are the savings rate, the time available, the allocation and the cost drag. Volatility during this phase is uncomfortable but not structurally dangerous, because contributions continue and there is time to recover. For a long-horizon saver, a market decline is buying at lower prices.

Decumulation begins when withdrawals start, and it changes the mathematics. Money leaving the portfolio during a decline is money that never participates in the recovery. The same average return, delivered in a different order, produces materially different outcomes once withdrawals are underway. This is the single most important idea in retirement planning and the one most often discovered too late.

The main US account types

The following is a general orientation to structures available in the United States. Eligibility, contribution limits, income phase-outs, penalties and distribution rules change from year to year and depend on personal circumstances — confirm current details at IRS.gov or with a qualified tax professional before acting.

How much is enough

Two approaches dominate, and they answer different questions.

Replacement ratio methods estimate the proportion of pre-retirement income needed afterwards. They are quick and useful as a sanity check, but they assume your spending resembles your income, which for high savers and people with unusual cost structures it does not.

Expense-based methods build the number from actual projected spending: essential costs, discretionary costs, one-off items such as vehicle replacement or travel, and healthcare. This takes longer and is considerably more reliable, because retirement is a spending problem rather than an income problem.

Real retirement spending is rarely a straight line. A widely observed pattern is higher spending in early, active years, a decline as travel and activity reduce, and a rise in later years driven by healthcare and care needs. Planning on a flat inflation-adjusted figure is simple, but it may misstate both the early and the late years.

Sequence-of-returns risk

Consider two retirees with identical portfolios, identical withdrawals and identical average returns over thirty years. One experiences poor returns in the first five years and good returns later; the other has the reverse. The second finishes far better off, sometimes dramatically so, despite the same average.

The reason is that withdrawals during a decline permanently remove capital that would otherwise have recovered. The order of returns does not matter while you are contributing. It matters enormously once you are withdrawing.

Approaches commonly used to manage it include holding a cash or short-bond reserve to fund spending during declines so that depressed assets need not be sold; reducing equity exposure approaching the retirement date and increasing it again afterwards; keeping some flexibility in discretionary spending; and retaining the option of part-time earnings in the early years. Each carries its own trade-off, and none removes the risk.

Withdrawal strategies

• Fixed real withdrawal. Take an initial percentage and adjust it for inflation each year. Predictable for the retiree; entirely unresponsive to how the portfolio is actually doing.
• Fixed percentage. Withdraw a set percentage of the current balance annually. The portfolio cannot be exhausted by the rule itself, but income swings with markets.
• Guardrails. Set upper and lower bands around a target withdrawal rate and adjust spending when the rate strays outside them. More responsive, more complex to administer.
• Bucketing. Segment assets by time horizon — near-term spending in cash, medium-term in bonds, long-term in equities — and refill periodically. Behaviourally reassuring; the underlying allocation still needs to make sense in aggregate.
• Floor plus upside. Cover essential spending with predictable sources such as Social Security or an income annuity, and use portfolio withdrawals for discretionary spending.

Social Security timing

For most US households, Social Security is the largest inflation-adjusted lifetime income source they will ever hold, which makes the claiming decision consequential. Benefits can generally be claimed within a range of ages, with the monthly amount increasing for each year claiming is deferred within that range.

The trade-off is between more payments of a smaller amount and fewer payments of a larger one, with the balance depending on longevity, current income needs, employment, marital status, spousal and survivor benefits, and tax interactions. Survivor benefits in particular make the higher earner's claiming decision important for both members of a couple.

Because the rules are detailed and personal, verify your own figures directly with the Social Security Administration and consider professional analysis before deciding.

Healthcare and long-term care

Healthcare is frequently the largest under-planned cost in retirement. Two distinct issues need separate thought.

The first is coverage before Medicare eligibility. Retiring before the eligibility age leaves a gap that must be bridged, and the cost of doing so is often the deciding factor in an early retirement decision.

The second is long-term care, which is generally not covered by standard health insurance. Extended care is expensive, its need is unpredictable, and it frequently falls on family members when no plan exists. Options include self-funding, traditional long-term care insurance, hybrid life-and-care policies and, in some circumstances, means-tested public programmes. This is an area where the rules vary significantly by state and where professional guidance genuinely pays for itself.

Frequent mistakes

• Planning for an average lifespan. Averages mean roughly half of people live longer. For a couple, the relevant horizon is the second death, not the first.
• Forgetting tax in the projection. A pre-tax balance is not spendable income; withdrawals from tax-deferred accounts are generally taxable.
• Ignoring required distributions. Tax-deferred accounts eventually force withdrawals under rules that have changed several times — check current requirements.
• Holding stale beneficiary designations. These generally control the account regardless of what a will says. See estate planning.
• De-risking to nothing. A thirty-year retirement still needs protection against inflation; all-cash is a risk decision, not the absence of one.
• Treating the decision as irreversible. Phased retirement, part-time work and adjustable spending are legitimate parts of a plan.