How Much Cash Is Too Much?
Cash has no volatility and a guaranteed slow loss. Both halves matter.
At a glance
Figures checked 1 Sep 2026
What to take away
- Cash covers the emergency fund, sinking funds and anything needed within five years.
- Beyond that, cash is a slow, certain loss in real terms.
- After tax, a 4% yield against 3% inflation leaves very little real return.
There is a right amount of cash and it is defined by purpose, not by comfort. Emergency fund, sinking funds, and known spending within five years. Everything beyond that is money whose job you have not decided.
The real return, honestly
A 4.10% savings account taxed at a 24% marginal rate nets roughly 3.1%. With annual inflation running near 3.4% recently, the real return is about zero or slightly negative. Cash is preserving nominal dollars, not purchasing power.
Waiting for a better entry point is the most common reason large cash balances persist. The cost accrues quietly every month while the decision is deferred.
Common questions
For someone who would sell a portfolio in a downturn, a larger cash allocation can be the price of staying invested at all. It is a behavioural trade, and worth making consciously.