How Does the Monthly Deduction Work in a Universal Life Policy?

Updated July 9, 2026 6 min read

Universal life insurance is often marketed around its flexibility, but underneath that flexibility sits a mechanism that runs on a fixed schedule: once a month, a bundle of internal charges gets pulled from the policy’s cash value whether or not anyone is watching.

The short answer

A universal life policy’s monthly deduction is the sum of several internal charges taken from the policy’s cash value each month: the cost of insurance for that month, charges for any attached riders, and administrative or expense charges built into the contract. Whatever remains after that deduction is what continues to earn interest or investment return inside the policy. Because the cost of insurance generally rises with the insured person’s age, the size of this monthly deduction tends to grow over the life of the policy.

What makes up the deduction

Why the deduction grows over time

Because cost of insurance is priced by attained age, the same face amount of coverage generally costs more to insure at an older age than it did when the policy was issued. Early in a policy’s life, the deduction is often small relative to the premium being paid, which is part of why universal life cash value can build up in the early years. As the insured ages, that same premium may cover a shrinking share of the rising internal cost, which is one reason the relationship between premium, cash value, and coverage needs periodic attention rather than being assumed to run itself.

How the deduction interacts with cash value growth

Cash value inside a universal life policy grows from two competing forces: whatever interest or investment return gets credited, and whatever gets deducted for the month’s charges. When credited growth exceeds the deduction, cash value rises. When the deduction is larger than what’s credited — something more likely during periods of low crediting rates or as cost of insurance climbs with age — cash value can shrink even if no withdrawals were taken. That dynamic is different from term life insurance, where there’s no cash value account absorbing these internal charges at all.

Why this differs from other permanent designs

Some permanent life insurance designs, like certain variable life contracts, share this same monthly-deduction structure but add investment risk into the mix, since the underlying subaccounts can lose value independent of the deduction itself. In either case, the deduction mechanics work the same way: it’s a running cost the policy pays itself before crediting anything to the cash value.

What this means for a policy’s long-term health

Because the monthly deduction isn’t fixed, a policy funded at a level that worked comfortably in its early years may not automatically stay funded as costs rise decades later. Illustrations provided at issue typically show projected values under certain assumptions, but actual crediting rates and, in some cases, actual charges can differ from those projections over time. That gap is exactly why periodic policy reviews exist as a general practice in this type of coverage — not because something has gone wrong, but because the underlying costs are inherently variable.

The takeaway

The monthly deduction is the ongoing price a universal life policy pays for its own protection and upkeep, made up of cost of insurance, rider charges, and administrative fees. Understanding that this cost typically increases with age — and that it draws directly from the same cash value meant to sustain the policy — helps explain why these policies are generally built to be monitored over time rather than left untouched indefinitely.