Liquidity (Liquidität)
Liquidity is how quickly an asset can be turned into cash without losing value. Liquidität ranks money on a spectrum: cash and Girokonto (checking account) balances sit at the fully liquid end, available instantly. Real estate and long-term Festgeld (fixed-term deposit) sit at the illiquid end, where converting to cash costs time, a penalty, or a lower sale price.
Why it matters
Liquidity is the hidden variable behind every "where do I keep this money" decision. Money held for near-term needs — rent, an unexpected repair, a gap between jobs — has to sit somewhere fully liquid, because the whole point is being able to reach it on short notice. Money that will not be touched for years can trade liquidity away for a higher rate or return. Confusing the two is a common way to lose access to cash exactly when it is needed.
Worked examples
1. The liquidity spectrum. The same €10,000 behaves differently depending on where it sits:
| Where the money sits | Access | Cost to access it early |
|---|---|---|
| Cash / Girokonto (checking account) | Instant | None |
| Tagesgeld (instant-access savings account) | Instant to next business day | None |
| Festgeld, 12-month term | End of term only | Often blocked entirely, or a rate penalty if the bank allows early withdrawal |
| Real estate | Weeks to months (sale process) | Broker fees, transfer tax, market timing risk, possible loss versus purchase price |
The table reads top to bottom as decreasing liquidity and, often, increasing potential return — the two tend to move together, but not always: a Tagesgeld account can pay a similar rate to a Festgeld account while staying fully liquid.
2. The cost of being illiquid at the wrong moment. Suppose €8,000 sits in a 12-month Festgeld that started 4 months ago, and a car repair bill for €2,000 arrives. Two outcomes are possible: the bank refuses early withdrawal until month 12, or it allows it but strips some or all of the earned interest as a penalty. Either way, the saver either cannot pay the bill from that account or pays for the privilege — the interest gained from locking the money in is offset, sometimes entirely, by the cost of breaking the lock early. The same €2,000 need, if it had sat in Tagesgeld instead, costs nothing to access.
Check yourself
Which of these count as relatively liquid ways to hold money? Select all that apply.
A saver says: "My Festgeld pays a higher rate than my Tagesgeld, so it's the better place to keep money I might need next month." What's wrong with this reasoning?
An illustrative 12-month Festgeld pays 3% annual interest, simple (non-compounding). A saver deposits €8,000. After exactly 4 months, they withdraw early, and the bank's terms mean they forfeit all interest accrued so far. How many euros of interest do they forfeit?
Which best defines liquidity?