Good investment advice starts with an uncomfortable truth: the biggest threat to your long-term wealth is rarely a market crash. It is inflation, working quietly in the background, year after year. Markets fall and recover. Inflation never gives anything back. Yet most of the investment planning guidance people receive barely mentions it, focusing instead on headline returns that look impressive on paper and mean far less in practice.
This article explains how inflation and investments interact over the long term, why the standard information from pension and investment providers does not tell you the full story, and what a realistic strategy for protecting your purchasing power actually involves.
Why Inflation Is the Risk Most Investors Underestimate
Ask most people what they fear as investors and they will describe a sudden market fall. That fear is understandable, but it is also incomplete. A 20% market drop is visible, painful and usually temporary. Inflation of 3% a year is invisible, painless and permanent.
Here is the arithmetic that rarely appears in a provider’s annual statement. At 3% annual inflation, £100,000 held today buys the equivalent of roughly £74,000 of goods and services in ten years, and around £55,000 in twenty. At 5% inflation, that twenty-year figure falls below £38,000. Nothing dramatic happens on any single day. The damage is simply cumulative and irreversible.
The UK had a sharp reminder of this between 2021 and 2023, when CPI inflation peaked at 11.1% in October 2022, its highest level in over 40 years. Savers holding cash watched the real value of their money fall faster in two years than in the previous decade combined. Even now, with inflation closer to the Bank of England’s 2% target, the lost purchasing power from that period has not been restored and never will be.
The practical consequence for long-term investing is this: your true return is not what your statement says. It is what your statement says minus inflation. A portfolio returning 5% during a year of 4% inflation has grown your real wealth by roughly 1%. That distinction between nominal and real returns should sit at the centre of every investment decision, and it almost never does.
What Actually Matters When Building an Inflation-Resilient Portfolio
Generic guidance tells you to “diversify” and “think long term”. Both are true and neither is useful on its own. These are the factors that genuinely determine whether your wealth keeps pace with rising prices.
Real returns, not headline returns
Every projection you review should be assessed in real terms. If a pension illustration shows your fund growing to £600,000 in 25 years, the meaningful question is what £600,000 will buy in 25 years, not what it would buy today. Provider projections do include inflation-adjusted figures, but they are typically buried in the documentation and based on assumptions that may not match your circumstances. Reading them properly, and stress-testing them against higher inflation scenarios, changes how most people view their plans.
The hidden cost of holding too much cash
Cash feels safe because its nominal value never falls. In real terms, cash held long term is one of the most reliably loss-making assets available. Even competitive savings rates have historically struggled to match inflation after tax, particularly for higher-rate taxpayers.
This does not mean cash has no role. An emergency fund and money earmarked for spending within the next few years belong in cash. The problem arises when six-figure sums sit in savings accounts for a decade because holding them there feels prudent. It is not prudence. It is a slow, guaranteed erosion of wealth, and it is one of the most common issues we see when reviewing new clients’ finances.
Asset allocation does the heavy lifting
Over long periods, equities have been the most dependable way to outpace inflation, because company revenues and profits tend to rise with prices over time. Other assets play supporting roles. Index-linked gilts provide explicit inflation protection, though their pricing and duration risk need to be understood before relying on them. Commercial property and infrastructure can offer income streams with inflation linkage. Conventional fixed-rate bonds, by contrast, are directly vulnerable to unexpected inflation, as bondholders discovered painfully in 2022.
The right blend depends on your time horizon, your capacity for loss and when you will need to draw on the money. There is no universal answer, which is precisely why generic model portfolios so often disappoint. Proper wealth management means matching the asset mix to your actual life, not to a risk questionnaire score.
Time horizon changes everything
Inflation risk and market risk pull in opposite directions depending on your timescale. Over one year, equities are volatile and cash is stable. Over twenty years, the picture reverses: equities have historically delivered positive real returns with high reliability, while cash has delivered real losses with equal reliability.
This is why the same person might sensibly hold very different portfolios for different goals. Money for a house purchase in three years and money for retirement in twenty are not the same problem, and treating them as one portfolio with one risk level serves neither goal well.
Inflation in retirement is a different problem entirely
While you are working, your salary usually rises with inflation, giving you a natural buffer. Once you retire, that buffer disappears. A retirement lasting 25 or 30 years, which is now entirely normal, will span multiple inflation cycles.
Consider a retiree drawing £30,000 a year. At 3% inflation, maintaining the same standard of living requires around £40,000 a year after ten years and over £54,000 after twenty. A drawdown plan that looks comfortable at the outset can become fragile if withdrawals must rise while markets are weak, a combination known as sequencing risk. Equally, a level annuity that felt generous at 65 can feel tight at 80. These trade-offs, between guaranteed income, inflation-linked income and invested flexibility, are among the most consequential decisions in financial planning, and they deserve more than a default option ticked on a form.
Real-World Scenarios: How Inflation Quietly Reshapes Plans
The following illustrative scenarios reflect situations we regularly encounter in practice, with details generalised.
The cautious saver. A professional couple in their fifties held over £300,000 in cash ISAs and savings accounts, built up carefully over 15 years. They viewed themselves as risk-averse and were proud of never having “gambled” on markets. In real terms, their savings had lost a substantial portion of their purchasing power over that period. The risk they thought they were avoiding had simply been replaced by one they could not see. Restructuring even part of that capital into a diversified portfolio, while keeping a sensible cash reserve, transformed their realistic retirement date.
The level annuity decision. A retiree comparing annuity quotes saw that a level annuity paid noticeably more per year than an inflation-linked one and chose the higher starting figure. Fifteen years later, with cumulative inflation having eroded a third of its real value, the income no longer covered comfortable living. Neither option was inherently wrong, but the decision was made on starting income alone, without modelling what each would buy at 80 or 85.
The projection that looked fine. A business owner reviewed a pension projection showing a fund of £750,000 at retirement and concluded he was on track. Adjusted for inflation at his intended retirement date, the equivalent purchasing power was closer to £450,000 in today’s terms, well short of what his intended lifestyle required. The provider’s paperwork technically contained this information. Nobody had ever walked him through it.
The Questions Your Provider’s Paperwork Will Not Answer
Pension and investment providers supply factually accurate documents that are genuinely difficult to act on. Statements show nominal values. Projections rely on standardised growth assumptions. Nothing connects the numbers to your actual life.
The questions that matter are the ones the paperwork cannot answer. What do these figures mean in real terms at the point I will actually spend the money? If inflation runs at 4% rather than 2% for the next decade, does my plan still work? How much cash am I holding beyond what I genuinely need accessible, and what is that costing me each year? Is my asset allocation positioned for inflation, or merely for a risk score I filled in years ago?
Most people sense that they are not getting the full picture from their providers, but they do not know which questions to ask. That gap, between the information given and the understanding needed, is where independent advice earns its keep.
Why Independent Investment Advice Matters When Inflation Bites
There is a meaningful difference between information and advice. Providers give you information about their products. An Independent Financial Adviser (IFA) is not tied to any provider, which means the advice can be built around your circumstances rather than around a product range.
In the context of inflation, that independence matters in practical ways. It means projections can be stress-tested against realistic inflation scenarios rather than standardised assumptions. It means asset allocation can be reviewed across everything you hold, including the cash sitting outside your investment accounts. It means retirement income options can be compared honestly, including the real-terms trade-offs between annuities, drawdown and blended approaches. And it means the plan gets revisited as inflation, markets and your life change, rather than being set once and left to drift.
Veracity Financial Planning has been providing independent investment advice, pension advice and financial planning since 2009, working with individuals, families and business owners who have built meaningful assets and want them to last a lifetime. Our approach is built on a transparent, visible charging structure and on planning techniques that translate confusing provider information into decisions you can actually understand and act on. Our clients typically come to us not because they lack information, but because they want to know what they are not being told.
Frequently Asked Questions
What is a good investment return during high inflation? The honest benchmark is inflation plus a margin. A return of 7% during 6% inflation is a real return of roughly 1%. Over the long term, a diversified portfolio targeting a real return of 3% to 4% above inflation has historically been an achievable, though never guaranteed, objective.
Should I move everything out of cash? No. Cash remains the right home for emergency funds and money needed within the next few years. The issue is holding long-term wealth in cash, where inflation makes real losses close to certain over time.
Do index-linked gilts fully protect against inflation? They provide direct inflation linkage, but their market price still fluctuates with interest rates, and buying them at the wrong price or duration can undermine the protection. They are a useful tool within a portfolio rather than a complete answer.
How often should an investment strategy be reviewed? At least annually, and additionally after significant life events or major shifts in the economic environment. A strategy set during 1% inflation may be poorly positioned during 5% inflation.
The Bottom Line
Inflation is not a temporary news story. It is a permanent feature of the economic landscape and the single most persistent force working against long-term wealth. A strategy that ignores it can look healthy on paper for years while quietly failing in real terms.
The remedy is not complexity. It is clarity: understanding your real returns, holding the right amount of cash for the right reasons, allocating assets to match your actual time horizons, and planning retirement income that keeps its value across decades rather than just at the point of purchase.
If you would like to understand what your current plans really mean in tomorrow’s money, and what a genuinely inflation-aware strategy would look like for your circumstances, speak to an adviser at Veracity Financial Planning. Call 0115 967 0888 or email financialadvice@veracityfp.co.uk to book an initial meeting.
Veracity Financial Planning is an independent financial advice firm based in Nottingham, serving clients across the UK since 2009. The content of this article is for general information only and does not constitute personal financial advice. The value of investments can fall as well as rise, and you may get back less than you invest.
