Using life insurance as supplemental retirement income — pros, cons, and guardrails

There is a legitimate way to use permanent life insurance to supplement retirement income, and there is a version of the same idea that gets oversold to people who should not be doing it at all. The difference is entirely in the guardrails. So this piece leads with them, not the pitch.

Used correctly, cash-value life insurance can be a useful supplemental income source with some genuinely attractive tax characteristics. Used carelessly — overfunded on optimism, over-borrowed in retirement, and allowed to lapse — it can hand you a tax bill precisely when you can least afford one.

How the income actually works

A permanent life insurance policy builds cash value that grows tax-deferred. The retirement-income idea rests on one mechanism: policy loans.

In retirement, instead of withdrawing from the policy, you borrow against its cash value. Because a loan is not income, a policy loan is generally not taxable while the policy remains in force. You can use that borrowed cash for living expenses. The loan (plus interest) is typically settled later from the death benefit, reducing what heirs receive.

The guardrails — read these first

1. Lapse risk is the whole ballgame. Loans and their accruing interest steadily reduce the cash value and the death benefit. If you borrow too aggressively and the policy's cash value can no longer support the loan, the policy can lapse — and here is the trap: if it lapses or is surrendered with a loan outstanding, the previously untaxed gain can become taxable income all at once. You could owe tax on money you already spent years earlier. Keeping the policy funded and in force is not optional; it is the strategy.

2. Funding-level discipline. The approach only works if the policy is adequately funded in the first place. An underfunded policy has too little cash value to produce meaningful income and is far more prone to lapse under loans. This is a fund-it-properly-or-do-not-do-it tool.

3. Watch the MEC line. Fund a policy too fast and it becomes a Modified Endowment Contract (MEC) — at which point the favorable loan tax treatment is lost and distributions are taxed less kindly. There is a specific funding ceiling that avoids this, and staying under it is part of designing the policy.

4. Illustrations are hypothetical. Any projection of future income you are shown rests on non-guaranteed assumptions — crediting rates, expenses, and dividends that can change. Treat the numbers as a demonstration of how the mechanics work, not a promise of what you will receive.

Where it genuinely helps

Two real advantages make this worth considering after the guardrails are respected:

A tax-diversified income source. Retirement income drawn from a policy loan does not add to your taxable income the way traditional account withdrawals do. That can help manage your tax bracket in retirement and complements — rather than replaces — your other buckets.

A volatility buffer against sequence risk. This is the most underappreciated use. Sequence-of-returns risk is the danger that a market downturn early in retirement, combined with withdrawals, permanently damages a portfolio. In a down year, instead of selling investments at a loss, you can draw income from the policy's cash value and give the portfolio time to recover. Used this way, the policy is a buffer asset, not a primary income engine — and that buffer role is often where it adds the most value.

The order of operations

Whether it still makes sense to carry life insurance into retirement at all is worth its own look — see life insurance in retirement.

Who it fits

It tends to fit someone who is already maxing out their tax-advantaged accounts, wants additional tax-advantaged accumulation, has a long time horizon to let the cash value build, and has the cash flow discipline to fund the policy properly for years. For someone still building their emergency fund or not yet capturing an employer match, it is the wrong first move.

Bottom line

Life insurance can supplement retirement income through tax-advantaged policy loans and can serve as a valuable buffer against a bad market at the wrong time. It earns that role only when the policy is adequately funded, kept under the MEC limit, not over-borrowed, and kept in force for life — because the moment it lapses with a loan outstanding, the tax advantages reverse. Model a realistic version with the LIRP calculator, and build it as the supplement it is, on top of a foundation that is already in place.