Keeping Too Much Cash in Bank Accounts Could Cost You $6,400 Over 5 Years
Keeping too much cash in a bank account could cost households about $6,400 over five years.
The loss does not show up in the balance. It shows up in what that money can buy.
Low interest rates and rising prices steadily reduce the value of cash sitting in checking and traditional savings accounts.
Here is where that loss comes from and how it builds.
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Inflation Eats Purchasing Power
Prices continue to rise across everyday categories like groceries, gas and utilities.
In March, prices increased 0.9% and are up 3.3% over the past year, according to the U.S. Bureau of Labor Statistics (BLS).
That means the same amount of money buys less than it did before. A grocery bill that used to cost $150 can edge closer to $160 without any change in what is in the cart.
When cash sits in a low-interest account, it does not keep up. Even if the balance stays the same, its real value declines. Over time, that gap drives a large share of the $6,400 loss.
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Savings Rates Still Lag Behind
Many traditional savings accounts are still paying very little.
The FDIC reported that the average savings rate is 0.38%, even as prices continue to rise. That's where the gap shows up. Cash in these accounts earns something, but it is not enough to keep up with higher costs.
That shortfall is one of the main reasons money set aside in savings can still lose value.
The Cost of Cash Sitting in Checking
It's easy for extra cash to sit in checking longer than planned. Money set aside for bills or emergencies can build up and stay put.
That convenience comes with a tradeoff. Checking accounts are meant for spending, not saving, so that money earns little while prices keep rising.
Even small amounts left there can fall behind. That money loses ground each month it stays put.
How the $6,400 Loss Adds Up
The typical household keeps about $8,000 in cash accounts, according to the latest Federal Reserve data. At today's rates, that could lose around $1,200 in buying power over five years.
As that balance grows, so does the loss. At higher balances, the difference between what cash earns and what rising prices take away can reach roughly $6,400 over five years using the below example.
Example Information for Comparison
Starting cash balance: $25,000
Time horizon: five years
Cash return: 1% annually (typical checking / low-yield savings)
Invested return: 6% annually (moderate long-term portfolio)
No additional contributions
No taxes (to keep comparison clean)
Scenario 1: Money Stays in Cash
Formula: $25,000 × (1.01)^5 = $26,275 (Principal × (1 + r)^t = Future Value)
Ending value after five years: $26,275
Scenario 2: Money Is Invested
Formula: $25,000 × (1.06)^5 = 33,450
Ending value after five years: $33,450
How Much It Would Cost You
$33,450 − $26,275 = $7,175 (gross opportunity cost)
The actual amount would be closer to $6,400 lost over five years after accounting for:
variability in returns
partial investment timing
slightly higher cash yields
Safer Places for Extra Cash
Cash does not have to sit in low-interest accounts.
High-yield savings accounts, short-term Treasury bills and CDs often offer higher rates while keeping money accessible.
Even a small increase in interest can help close the gap between what cash earns and how quickly prices are rising.
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This article was provided by MoneyLion.com for informational purposes only and should not be construed as financial, legal or tax advice.
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