Why cash loses ground to inflation

Inflation is a rise in prices. The same notes in your account buy a smaller basket of ordinary things after it has done its work. You do not receive a statement that says “inflation deducted 3 percent.” You notice later, when the groceries and the rent have moved and the cash balance has not.

That slow leak is the respectable argument for investing. It is not an argument for investing money you cannot leave alone.

What cash is good at

Cash is stable in nominal terms. One hundred units is still one hundred units next year, assuming the bank remains a bank and you stay inside the protection rules that apply to the account. That stability is exactly what an emergency fund needs. A repair does not care that your shares might recover by 2029.

Keep that job for cash even when a chart of inflation makes you impatient. The guide to building an emergency fund before you invest is the practical version. Risk and time horizon is the reason a short-dated goal stays in cash anyway.

What cash is bad at

Over long periods, interest on cash has often failed to keep up with inflation after tax. Some years savings rates are generous. Some years they are not. You cannot plan a twenty-year goal on the generous year.

The loss is in buying power, not in the number printed on the account. A balance that never falls can still be a balance that affords less. People who say they are “not losing money” in cash are often measuring the wrong unit.

What investing changes, and what it does not

A broad portfolio of productive assets — companies, and sometimes property or bonds held through funds — is a claim on economic activity, not a claim on a fixed number of currency units. Over long horizons that claim has tended to grow faster than consumer prices. The path is jagged. A year of inflation can also be a year of falling markets, so the “inflation hedge” can look like a failure at the exact moment you check.

Investing does not cancel inflation on a timetable. It is a way to stop relying on cash for a job cash does badly, once the time horizon is long enough that the jagged path is tolerable.

The shape we keep returning to is a simple global ETF portfolio. The fee you pay to own it matters more when inflation is already taking a cut. That is expense ratios explained.

A worked sense of the leak

Suppose prices rise at 3 percent a year. Something that costs 100 currency units today costs about 134 in ten years and about 181 in twenty, if that rate held, which it will not in a straight line. Cash that earned nothing would buy a little over half as much at the end of those twenty years. Interest narrows the gap. It rarely feels, in the calm years, as urgent as a falling stock chart. Urgency is a poor editor.

Do not “solve” inflation with a story

Gold, commodities, a single property fund, a currency tip: each is a specific bet that can help or hurt. None is a mandatory response to a consumer-price chart. Adding them because the word inflation was in the news is how simple portfolios become cluttered. If you add one, write the reason and the maximum size. Otherwise you are collecting headlines.

Where the invested slice can live

When the cash buffer exists and the long-term amount is clear, you need a brokerage account that will take a modest monthly sum. Fractional shares matter here, because inflation does not wait until you can afford a whole expensive ETF unit. Fractional shares explained covers the mechanics.

You can open an account with this Trading 212 invite (referral link, opens in a new tab) and use the Invest account if you want to own funds rather than trade price derivatives. Confirm what interest, if any, is paid on uninvested cash, and do not confuse that cash with the emergency fund you may want outside the broker.

Inflation is a reason to have a long-term portfolio. It is not a reason to hurry money into one.