Life insurance policy loans are often marketed as a flexible, tax-free way to access cash. But when loans aren’t managed carefully, they create a quiet drag that erodes a policy’s value over time.
One reason for loan drag is negative arbitrage. Negative arbitrage happens when the interest rate charged on a policy loan exceeds the rate of return earned on the policy’s cash value, resulting in a net loss. Taking large loans against the cash value might ultimately lead to a policy lapse.
How Negative Arbitrage Works
When you take a loan from a permanent life insurance policy, you don’t actually withdraw your cash. Instead, your insurance company lends their money and uses your cash value as collateral.
Most cash value policies earn interest at a set rate. But the insurer charges interest on the outstanding loan balance at a separate rate. If the loan rate is higher than the earned interest, your debt outpaces your growth.
Compounding interest can accelerate this loss. Each year, unpaid loan interest is added to your total debt. The next year, interest is charged on the original loan plus the interest from the year before.
In the beginning, the difference might only be a few dollars. But those few dollars can turn into thousands over time. Eventually, the loan balance catches up to the total policy value, causing it to lapse.
Why Loans Snowball
Interest accrual creates a snowballing effect because the interest is being calculated on an ever-larger pile of debt. But other factors also contribute to why and how loans snowball.
Reduced Crediting
Reduced crediting is when an insurance company reduces the interest or dividends credited to the cash value used as loan collateral.
When you take a fixed loan, your insurance company moves your collateral into a loan reserve account. This reserve often earns a lower, fixed interest rate compared to the rest of your “unborrowed” cash value.
While this can make your loan more affordable, it limits cash value growth, which, combined with unpaid interest, increases the risk of policy lapse.
Market Conditions and Volatility
Market volatility can affect a loan both directly and indirectly.
During poor market conditions, cash value growth in Indexed Universal Life (IUL) policies may be minimal. This can cause a lower borrowing ceiling and less interest earned, making it harder to outpace interest charges.
In Variable Universal Life (VUL), a decline in cash value increases the net amount at risk, causing a higher cost of insurance. When combined with an outstanding loan, this can erode the cash value faster than in a stable market.
At the same time, a policy may earn less income as interest charges rise. In volatile or low-return markets, insurance companies may reduce dividends, giving policyholders less income to use for paying down loan interest.
And if the policy loan has a variable interest rate, periods of high interest rates can increase the cost of borrowing, further compounding the interest.
Timing
Loans can also snowball when there are timing issues. A loan taken early, left unpaid for too long, or stacked with added borrowing has more time to compound.
For example, if you borrow too early, the cash value hasn’t had enough time to build. This can create debt that slows policy growth.
Another scenario is when you borrow right before a market downturn (IUL) or a dividend cut (Whole Life). You might end up paying high interest charges while your collateral flattens or declines.
Regardless, the longer a loan is unpaid, the more the interest grows. That makes the timing of when you pay it back (or don’t) critical.
Containing the Damage
Unlike traditional bank loans, life insurance loans have no mandatory repayment schedule. That means it’s easy for debt to go unnoticed. Without repayment planning, interest accrues, debt grows, and a policy might lapse before the borrower realizes it.
When it does lapse, the IRS treats the total outstanding loan (minus your cost basis) as taxable income. This can cause a massive, unexpected tax bill at exactly the wrong time.
The good news is that loan drag is manageable if you catch it in time. By following loan management rules, tracking your balance, and checking your cash value, you can stop loan drag before it starts.
Ready to review your policy loan strategy? Collaborating with a qualified analyst can make a difference. As one of the 1% Life and Disability Analyst agents in California, Frank Campbell has spent over 30 years protecting clients by finding policy risks that most agents miss.
Don’t let your policy go underwater — take the first step today.