The phrase "retirement planning" carries an implicit assumption that the hard work ends when you stop accumulating and start spending. In reality, the investment decisions made during drawdown — how the pension is invested, how withdrawals are timed, how the portfolio is rebalanced — are as consequential as anything done during accumulation. They determine whether the pension lasts as long as you do.
The fundamental reason for this is straightforward: a drawdown pension is a depleting asset. Unlike a pension in accumulation — where market falls are partially offset by ongoing contributions buying in at lower prices — a drawdown pension experiences market falls without any offsetting inflows. Every withdrawal from a falling portfolio sells assets at depressed prices and permanently reduces the ability of the remaining portfolio to recover.
Why Drawdown Strategy Is Different from Accumulation
During the accumulation phase, a simplistic objective — maximise long-term real returns — is broadly appropriate. The time horizon is long, volatility is tolerable, and market falls are genuinely helpful to those making ongoing contributions (pound-cost averaging in reverse of the problem).
During drawdown, the objective is more complex: sustain regular income withdrawals throughout a retirement of uncertain length, without depleting the portfolio prematurely, while maintaining sufficient purchasing power against inflation.
This requires balancing:
- Sufficient growth to sustain the portfolio over potentially 30+ years
- Sufficient liquidity to fund income needs without forced selling in down markets
- Inflation protection to maintain real purchasing power over a long period
- Flexibility to adjust withdrawals in response to market conditions and personal circumstances
No single asset class optimises all of these simultaneously. A thoughtful drawdown strategy requires multiple asset classes serving different functions.
Sequence-of-Returns Risk: The Central Problem
The most damaging scenario for a drawdown pension is a significant market fall at the start of retirement. This is the sequence-of-returns risk, and it deserves a concrete illustration.
Consider two retirees, each starting with a £500,000 pension, each drawing £25,000 per year (5% of initial pot), and each experiencing an average annual return of 5% over 30 years. The only difference is the order of returns: Retiree A experiences a 30% fall in years 1–3 followed by strong returns. Retiree B experiences strong returns in years 1–3 followed by the same 30% fall later.
Retiree B's portfolio survives comfortably. Retiree A runs out of money materially earlier, despite having exactly the same average return over the same 30-year period. The sequence of returns — not just their average — determines survival.
This is why the investment framework for a drawdown pension must explicitly address what happens when markets fall — specifically, how you fund living costs without selling equities at the worst time.
The Cash Buffer: The First Line of Defence
The most widely accepted practical solution to sequence-of-returns risk is to maintain a cash or near-cash buffer sufficient to fund 1–2 years (some advisers recommend up to 3 years) of drawdown income needs.
The cash buffer serves one function: it means that when equity markets fall sharply, you do not need to sell equities to fund the next month's income. You draw from the cash buffer instead, and wait for the equity portion of the portfolio to recover before refilling the buffer.
Implementation: The cash buffer can be held in:
- A cash account within the pension (some SIPP platforms allow this)
- A money market fund within the pension
- A short-duration bond fund within the pension
Refilling the buffer: When markets are positive and equity holdings have grown, you sell a portion of the equity holdings and refill the cash buffer. This can be done annually or semi-annually as part of a regular portfolio review and rebalancing exercise.
The psychological benefit: Beyond the financial mechanics, a cash buffer has a significant psychological benefit. Knowing that your next 12–24 months of income are sitting in cash — unaffected by what equity markets do — makes it possible to hold an appropriately aggressive long-term equity allocation without the panic that drives costly selling at market lows.
The Bucket Strategy in Detail
The bucket strategy formalises the cash buffer concept into a structured framework:
Bucket 1 — Immediate income (0–2 years): Cash and near-cash. This funds current and near-term income withdrawals. It is refilled from Bucket 2 when depleted.
Bucket 2 — Medium-term growth and income (3–10 years): Multi-asset funds, global bonds, lower-volatility equities. This bucket grows over the medium term and provides the source for refilling Bucket 1. It is refilled from Bucket 3 when markets have been favourable.
Bucket 3 — Long-term growth (10+ years): Global equities, growth assets. This bucket has the longest time horizon and can absorb short-term volatility. It provides the return engine for the whole portfolio.
The bucket structure imposes discipline: you draw from the right bucket at the right time, and you never sell Bucket 3 assets to fund Bucket 1 needs in a down market. The discipline prevents the most damaging drawdown mistake (selling equities when they are cheap because you need cash).
The drawback is that the bucket approach is more complex to administer than a simple blended portfolio, and requires regular rebalancing and deliberate management of flows between buckets. A financial adviser — particularly one with a drawdown-focused platform — can administer this systematically.
Asset Allocation Through Retirement
Asset allocation in drawdown is not static. As you age, the relevant time horizon shortens, and the proportion of the portfolio that can be held in long-term growth assets typically reduces.
As a framework (not a prescription — individual circumstances vary significantly):
Age 60–65 (early drawdown): 55–65% global equities; 25–35% bonds/multi-asset; 10–15% cash. Strong equity allocation is warranted by the 30+ year time horizon.
Age 70–75 (mid drawdown): 45–55% global equities; 30–40% bonds/multi-asset; 10–15% cash. Modest reduction in equity allocation as time horizon shortens and capital preservation becomes more relevant.
Age 80+ (late drawdown): 30–45% global equities; 40–50% bonds/multi-asset; 10–20% cash. Equity allocation further reduced, but not eliminated — many people in good health at 80 have a 10–15 year remaining life expectancy and need continued real growth.
These are starting-point allocations. They should be adjusted based on:
- Health status and realistic life expectancy
- Other income sources (State Pension, DB pension income, property rental) — if most income needs are covered by guaranteed sources, the pension portfolio can take more risk
- The size of the pot relative to income needs — a pot much larger than required for income has more scope for growth
- Personal risk tolerance and emotional response to market falls
Natural Yield vs Total Return
Two schools of thought compete in drawdown portfolio construction:
Natural yield: Invest in assets that generate natural income — dividends from equity income funds, coupon payments from bonds, distributions from property income funds. Draw only the natural income; leave capital untouched. The appeal: the portfolio value appears stable (you are not eroding capital) and income is perceived as "from income, not principal."
Total return: Invest for maximum risk-adjusted total return without regard to income generation. Take withdrawals by selling whichever asset class is at an appropriate point in its cycle. Total return gives maximum flexibility in portfolio construction (not constrained to income-generating assets) and in timing of withdrawals.
The academic case for total return is strong: it produces a more efficient portfolio with more flexibility. The case for natural yield is partly behavioural: many retirees feel more comfortable spending "income" than selling capital. Both can work, but total return generally provides better long-term outcomes for those who can manage the complexity.
Dynamic Withdrawal Rates: Reducing and Increasing
A fixed withdrawal rate — drawing a defined percentage of the original pot, increased annually for inflation — is the simplest approach but ignores the reality of how markets behave.
A dynamic withdrawal strategy adjusts drawdown levels based on portfolio performance:
In good years (portfolio has grown above target): increase withdrawals or direct excess to reserves.
In poor years (portfolio has fallen): reduce withdrawals temporarily (to a pre-agreed minimum that covers essential costs), drawing from the cash buffer to fill the gap between the reduced drawdown and full income needs.
Dynamic withdrawal management extends portfolio longevity considerably compared to rigid rules. The key is agreeing in advance on the floor (minimum withdrawal that covers essential costs) and ceiling (maximum withdrawal in good years) and building the cash buffer to span the gap between the floor and normal income in lean periods.
Inflation Protection in Drawdown
Inflation is one of the most significant long-term risks for a drawdown pension. A 3% annual inflation rate over 25 years doubles the cost of living. A drawdown pension that was comfortable at age 65 may be inadequate at age 90 if it has not grown sufficiently to keep pace with inflation.
The primary inflation protection in a drawdown portfolio is the equity component. Over the long run, global equities have historically outpaced inflation significantly. The reason this works is that equity returns reflect the earnings and dividends of real businesses, which broadly track or exceed economic output and inflation over long periods.
Secondary inflation protection elements include:
- Index-linked government bonds (gilts or TIPS equivalents in other markets) — their income and capital values are explicitly linked to inflation indices
- Property-related assets — commercial property and infrastructure tend to produce income that grows with inflation over time
- Commodity exposure — provides some hedge against commodity-driven inflation episodes
In the current interest rate environment, diversification across these inflation-sensitive assets is more straightforward than in the near-zero-rate period that prevailed from 2009 to 2022, when bonds provided almost no inflation protection.
Regular Portfolio Review
A drawdown pension requires at minimum an annual review covering:
Portfolio performance and rebalancing: Has the actual allocation drifted significantly from target? Rebalance if equity has grown significantly above target (sell some equity, refill cash buffer and bonds) or if equity has fallen significantly below target (buy more equity from bond/cash holdings if the timing is appropriate).
Income sustainability: At the current withdrawal rate and market assumptions, is the pot on track to last to the required horizon? Stress test against a scenario of lower-than-expected returns.
Withdrawal rate review: Is the withdrawal rate still appropriate given the portfolio value, income needs, and life expectancy?
Cash buffer check: Is the cash buffer at its target level? Does it need refilling?
Tax planning: Are withdrawals being taken in a tax-efficient way given current tax thresholds, personal allowances, and the client's overall tax position?
Nomination check: Are expression of wishes up to date?
How Global Investments can help
Managing a pension in drawdown is one of the more sophisticated financial planning disciplines — and one that requires ongoing attention throughout retirement, not a one-off decision at the point of commencing drawdown. Global Investments works with internationally mobile clients worldwide to establish and manage drawdown investment strategies that are appropriate to their circumstances, adjusted over time as conditions and needs evolve.
We work with clients on portfolio construction, cash buffer management, dynamic withdrawal planning, and the annual reviews that keep a drawdown strategy on track. Contact our pensions advisory team to discuss your drawdown investment strategy.
Frequently Asked Questions
Is a pension in drawdown a fundamentally different investment problem to accumulation?
Yes, in important ways. In accumulation, you are buying assets with regular contributions. Market falls during accumulation are not inherently harmful — you buy more cheaply. In drawdown, you are selling assets to fund living costs. Market falls during drawdown are genuinely harmful — you sell at depressed prices and permanently reduce the remaining pot's ability to recover. Additionally, the objective changes: in accumulation, maximising long-term returns is the primary goal. In drawdown, the primary goal is sustaining income throughout retirement without depleting the pot prematurely — a more complex optimisation that requires balancing growth, income, and liquidity.
What is sequence-of-returns risk and how serious is it?
Sequence-of-returns risk is the risk that poor investment returns occur early in retirement. A 30% market fall in the first three years of a 30-year retirement is far more damaging than the same fall in years 20–23, even if the average annual return over the full period is identical. This is because early losses reduce the pot from which all future income is drawn. An early portfolio loss permanently impairs the income capacity of the remaining assets. Research (including the well-known 'safe withdrawal rate' work from Bengen and the subsequent Trinity Study) consistently shows that the sequence of early returns dominates long-term outcomes for drawdown portfolios.
What asset allocation is appropriate for a 65-year-old in drawdown?
There is no single right answer — it depends on health, longevity expectations, other income sources, risk tolerance, and the size of the pot relative to income needs. As a general framework, a 65-year-old in good health who is drawing from a SIPP that funds a significant portion of their income might hold 50–60% in global equities, 20–30% in bonds and multi-asset funds, and 10–20% in cash and near-cash (the income buffer). The equity component should not be eliminated — a 65-year-old has a potential 30-year drawdown period and cannot afford to sacrifice all equity growth. But the equity component should be held in the long-term bucket and never sold in a market downturn to fund immediate income.
What is the difference between the natural yield approach and the total return approach in drawdown?
The natural yield approach invests in income-generating assets (dividend-paying equities, bonds, property income funds) and draws only the natural income they produce — not the capital. This is psychologically comfortable (the capital appears intact) but is not always optimal: it ignores total return, may force a higher-income/lower-growth portfolio than is ideal, and dividend income is not guaranteed. The total return approach invests for maximum risk-adjusted total return and treats capital and income as interchangeable — taking withdrawals from whichever asset class is most sensibly sold at the time. The total return approach is generally more flexible and often more efficient, but requires more active portfolio management.
What is a sustainable withdrawal rate and should I aim for 4%?
The '4% rule' (drawn from US research suggesting that a 4% initial withdrawal rate, increased annually for inflation, has historically sustained a 30-year retirement portfolio in most market scenarios) is a useful rule of thumb but not a universal prescription. It was derived from US historical data, assumes a specific portfolio (roughly 50-60% equities, 40-50% bonds), and refers to the worst historical starting points. For UK pensioners, the relevant historical data, inflation environment, and asset return assumptions differ. As a starting point, a withdrawal rate of 3–4% of the initial portfolio is broadly sensible for a 30-year drawdown horizon, but should be reviewed dynamically — reduced in poor years, potentially increased in strong years — rather than rigidly maintained.
This guide is for general information only and does not constitute financial, legal or tax advice. Pension rules, tax rates and programme details change; verify current requirements with a qualified and FCA-regulated pensions adviser before acting. Pension transfers involving defined benefits over £30,000 require regulated advice.