Data study Published July 13, 2026

Does Infinite Banking Work? Your Policy Earns 3.99%. The Illustration Just Never Says So.

Search “does infinite banking work” and look at who answers. Seven of the first nine results sell whole life insurance — agents, brokers, an insurance carrier. Search for the comparison itself, “infinite banking vs buy term and invest the difference”, and the top result is a page titled “Debunking ‘Buy Term and Invest the Difference’” — published on the website of the man who invented infinite banking.

Now search the people who would normally settle this. Investopedia: nothing. Bankrate: nothing. Chase: nothing. The CFPB: nothing. NerdWallet has exactly one hedged page, filed under insurance, and it does not rank.

The sellers cannot be honest, and the giants are not being. There is a reason for that too: the big personal-finance sites earn affiliate revenue from life insurance, and “whole life is a poor place to build wealth” is not a sentence you print beside a whole life lead form.

We sell nothing. So we ran it. Every figure below is reproducible in the infinite banking calculator.

We refused to model the policy — and that is the point

Almost every “infinite banking calculator” online simulates a policy for you. We will not, because nobody honestly can. A whole life policy’s cash value depends on the carrier’s dividend scale, its internal cost of insurance, its expense loads and its surrender schedule — proprietary figures that differ enormously between carriers. A site that models “a typical policy” is publishing an assumption dressed as a fact.

Your illustration already contains the real numbers. So our calculator asks for three of them — premium, years, and the cash value at that year — and does the arithmetic your agent did not. That arithmetic is exact.

For this study we went further and gave the policy the return the industry claims for itself: roughly 4% over a long horizon. We did not pick a bad policy to beat up.

Key findings

  1. The policy earns 3.99% a year. $20,000 a year for 20 years — $400,000 paid in — becomes $619,000 of cash value. That is an internal rate of return, and it is the one number the illustration does not print.
  2. Buying term and investing the difference finishes $172,608 aheadafter capital gains tax on every dollar of the gain, which is harsher than reality.
  3. The break-even is 4.7%. Your investments need to earn less than five percent merely to tie the policy. A bond fund clears that.
  4. “You pay the interest to yourself” is false. A policy loan is a loan from the insurer, and the interest is the insurer’s revenue.
  5. But the loan really is cheap — about 1% net. That part of the pitch is true, and it is the only part. You bought that 1% loan by giving up $242,951 of growth.
  6. At year 20 you no longer need the insurance. The invested difference is worth $791,608 against a $500,000 death benefit. That is not a hole in the case for term — it is the case for term.

The result

Same death benefit. Same money out of pocket. The only difference is where it goes.

The policyTerm + invest the difference
Out of pocket, per year$20,000$20,000
Of which, insurancebundled$350 (term)
Of which, invested$19,650
Death benefit$500,000$500,000
Total paid in over 20 years$400,000$400,000
Value after 20 years$619,000$861,951
After 15% tax on the gain$619,000$791,608
Real annual return3.99%7%

Even taxed on every dollar, the index fund wins

We handed the policy its single best argument — the cash value grows tax-deferred and policy loans are tax-free — by taxing every dollar of the index fund’s gain at 15%. In reality you would only pay tax on what you sold. It still lost by $172,608.

And the comparison is against a taxable brokerage account. A 401(k) or an IRA is tax-deferred too, costs a fraction of a percent a year, and does not take fifteen years to break even.

The sentence the whole strategy rests on

“You pay the interest to yourself. You become your own bank.”

This is false, and it is not a subtle falsehood.

A policy loan is a loan from the insurance company. Your cash value is the collateral. The interest you pay is the insurer’s revenue, and not one cent of it is credited to you. If it were, the insurer would be lending money for free, which is not a business anyone runs.

What is true — and we model it, because a debunk that cheats proves nothing — is that many policies are non-direct recognition: your full cash value keeps earning dividends even while it is pledged against the loan. So if the loan costs 6% and your cash value is still being credited 5%, the net cost of borrowing is about 1%.

That is a genuinely cheap loan. It is a real feature of the product and we will not pretend otherwise.

You bought that 1% loan by giving up $242,951 of growth.

That is the trade, stated plainly. You may borrow against your own money very cheaply — after twenty years of earning 3.99% on it instead of 7%. Every dollar of the loan’s cheapness was pre-paid, at an enormous markup, in returns you never received.

”But the death benefit lasts forever”

It does. And if you die during the term, the term policy pays the same $500,000 — for $350 a year instead of $20,000.

So the permanent death benefit only becomes the deciding argument if you live, and the term expires. Look at what you are holding on that day:

You have more money than the insurance would ever have paid you. You do not need the insurance any more.

That is not a loophole in the argument for term. That is the entire argument for term: buy cover for the years your family would be ruined without you, and use the money you saved to make those years finite.

The years the pitch never puts on a slide

Whole life is front-loaded. Commissions and expenses come out of the earliest premiums, so the cash value in the first years is a fraction of what you have paid, and surrender charges can run for a decade or more.

Our calculator will show you this on your own numbers: enter an early year with the cash value from your illustration, and read the annual return. It is usually deeply negative — the tool prints a warning when your cash value is still below what you have paid in, because a great many policies are surrendered in exactly that window.

This matters more than it looks. If there is any real chance you stop — income drops, life changes, or you simply lose patience with a 3.99% return — then you are not buying the product described above. You are buying its worst years, at full price.

What is actually true about it

We will not tell you whole life is a fraud, because it is not. It is a legitimate, heavily-regulated product that does exactly what it promises: it pays a guaranteed death benefit, and it accumulates cash slowly and safely. If your goal is a guaranteed estate for a dependant who will need it whatever happens — a child with a disability, say — that is a real use, and none of the arithmetic above argues with it.

“Infinite banking” is a different claim. It says this is a superior way to build and access wealth. That claim is the one the numbers refuse.

And one last thing, which for most readers should settle it: the strategy is almost always explained to you by someone earning a commission worth a large share of your first year’s premium. That does not make them dishonest. It does mean the person walking you through the maths is the last person on earth who can afford to run it.

So run it yourself. Bring your own illustration.


Methodology: the policy’s return is the internal rate of return of an annuity-due — premiums paid at the start of each year — solved by bisection against the cash value from the illustration. We do not model the policy’s internals; they are carrier-specific and proprietary, and any figure we invented would be an assumption presented as a fact. The buy-term-and-invest comparison holds the death benefit and the annual outlay identical, and taxes the entire investment gain at the capital gains rate, which overstates the tax you would actually pay. Defaults use a cash value consistent with roughly the 4% long-run return the industry claims for a well-designed policy. Reproduce any figure in the infinite banking calculator.

Run your own numbers

Disclaimer: This article is for educational purposes only and is not financial advice. Figures are computed with the models described on our methodology page; actual loan terms depend on your lender and circumstances.