The Closest-Cousin Comparison

IUL vs Roth IRA: the ceiling is the story.

Both go in after-tax and come out tax-free — which is exactly why comparing them honestly comes down to one thing: the Roth stops at the IRS limit, and everything above it lands somewhere taxable. Model your overflow below.

Interactive — The Overflow Problem

Your savings goal vs the IRS ceiling.

At $1,500/mo ($18,000/yr), the Roth IRA absorbs $7,500 and $10,500 (58%) overflows into a taxable brokerage account every year.

Both market legs ride the actual S&P 500 total-return sequence (trailing 30 years, 1995–2024 data — 6 loss years en route), the brokerage overflow minus 0.75% fees and 15% long-term capital gains. IUL at 11.48% carrier-illustrated crediting with a 0% floor. Roth limit $7,500 (2026, under 50).

Max-funded IUL (all dollars, one structure)Roth to the limit + taxed brokerage overflow
$0.0$1.3M$2.5M$3.8M$5.1MTodayYr 15Yr 30
$4.7M
IUL path
$2.9M
Roth + brokerage, net
$205.1K
Capital gains tax on the overflow

If your savings fit inside the Roth limit, the lines tell you the honest answer: use the Roth. The IUL case is built on the overflow.

Feature by Feature

The full side-by-side.

Max-Funded IUL
Roth IRA
Tax at contribution
After-tax dollars
After-tax dollars
Tax at access
Policy loans — not income under §72(e)
Qualified withdrawals tax-free (§408A)
Annual contribution ceiling
No IRS cap — limited only by MEC design rules
$7,500 (2026, under 50) — overflow goes to taxable accounts
Income eligibility limit
None — any income level
Phases out at higher MAGI; then backdoor mechanics only
Access before 59½
Loans at any age, no IRS penalty
Contributions anytime; earnings penalized before 59½
Market crash exposure
0% floor — index losses can’t touch it
Full downside exposure
Upside potential
Capped / participation-limited by carrier
Uncapped market returns
Costs
Policy charges, front-loaded
Low fund fees
Death benefit
Income-tax-free, from day one
Balance passes to heirs; no leverage
Required minimum distributions
None
None for the original owner
The Part Nobody Selling You Something Says

When the Roth IRA wins.

  • Dollar for dollar, up to the limit. No insurance costs, no caps on upside, dead-simple tax treatment. If your savings fit inside the Roth ceiling, fill the Roth and stop reading.
  • Simplicity. A Roth needs no design, no funding discipline, no policy maintenance. An IUL needs all three.
  • Short or uncertain horizons. Roth contributions come back out anytime, tax- and penalty-free. IUL charges are front-loaded — quitting early costs real money.
Where the IUL Earns Its Keep

When the structure wins.

  • The dollars above the ceiling. Saving $1,500/month against a $7,500/year limit means most of your money overflows into taxable accounts — unless it has somewhere tax-advantaged to go.
  • Income too high to contribute at all. The Roth phases out at higher MAGI. Life insurance never asks what you earn.
  • Sequence protection. The 0% floor means a crash the year before retirement can’t force the plan to change.
  • Protection included. The income-tax-free death benefit is there from the first premium — a Roth balance is only ever what you’ve saved.
The Mechanics — With Sources

Don’t take our word for it.

Asked Constantly

IUL vs Roth IRA — the honest answers.

Usually, yes — up to the limit. The Roth IRA is cheaper: no cost of insurance, no policy charges, uncapped market upside. A well-designed plan typically fills the Roth first and routes the dollars ABOVE the IRS limit into a max-funded IUL, because those dollars would otherwise land in a taxable brokerage account.
The Next 15 Minutes

Roth to the ceiling.
Structure for everything above it.

A licensed CentraLife advisor maps your savings across all three tax buckets — including exactly how much belongs in the Roth first. No cost, no obligation.

Projections on this page are illustrative, based on user-selected assumptions — not a quote, illustration, or guarantee. IUL policies involve costs, caps, participation rates, and surrender charges that affect results. Contribution limits and phase-out thresholds are set by the IRS and adjust annually — verify current figures at irs.gov. Tax treatment described reflects current federal law and can change; discussion of tax concepts is educational, not tax advice — CentraLife does not provide tax preparation or legal services. Consult your own tax and legal professionals. CentraLife LLC · NPN 21105331.