IUL vs traditional UL vs VUL vs participating whole life vs ILP vs term life: a like-for-like comparison

First, the definitions: what each of the six products is

All six are life insurance products, and five of them carry a cash value. What separates them is who determines the cash value, who bears the outcome and whether there is a floor. In this article, IUL means a policy sold in Singapore as non-participating universal life whose interest is credited by a contract formula referencing an index (see the overview). VUL means variable universal life, offered to accredited investors, in which the policy owner makes investment selections within a custodial account (see the sister site vul.sg). A retail ILP means an investment-linked policy whose underlying assets are the insurer's sub-funds.

The eleven-row comparison table

The PPF caps are from SDIC (accessed 22 October 2026). The PPF is not a government guarantee of a policy.

Rows 1 to 3: growth, decision-making and floors

These three rows are the root of the classification. An IUL's account value holds no assets; the interest is calculated by a contract formula. Each segment compares the index level at its start and end, and a single credit is made after the parameters are applied (see index crediting). Traditional UL interest is also calculated, but from a declared rate rather than an external index. MoneySense describes the two together this way: returns depend on the crediting rate the insurer declares from time to time, which cannot fall below the minimum crediting rate, and the minimum can be set at 0% (updated 28 September 2026).

The account value of a VUL or a retail ILP is held rather than calculated. The former holds a selected portfolio in a custodial account and the latter holds sub-fund units, so market movements flow straight into the account value, with no floor. Participating whole life sits between the two: the guaranteed cash value is fixed by the contract, and bonuses are declared through a smoothing process. Term life has no account.

The value of a floor is easily overstated. Each of the three kinds of floor constrains only its own crediting or guaranteed component and does not protect the account value after charges. The LIA consumer guide cautions that for all universal life products the cost of cover generally rises with age (May 2020).

Rows 4 and 5: degree of guarantee and nature of the non-guaranteed part

Guarantees are clearest in term life (sum assured and premium fixed within the term) and participating whole life (guaranteed sum assured and guaranteed cash value). For IUL and traditional UL, the guarantees are floors rather than figures: the floor, the fixed-account minimum rate, maximum charges and a conditional no-lapse guarantee. The account value itself is not guaranteed, which is why the LIA requires a guaranteed column in the illustration. For VUL and retail ILPs, what usually remains is the underwriting decision, the benefit formula and a cap on cost-of-cover charges.

The nature of the non-guaranteed part determines how risk is transmitted. For an IUL it is the parameters: the insurer resets the cap rate and participation rate under the contract procedure, and new and old segments can differ. For participating whole life it is the bonuses, declared from the participating fund's experience and under smoothing principles, and a declared reversionary bonus becomes guaranteed once added. For VUL and ILPs the non-guaranteed part is the entire account value, with no declaration layer. When comparing, ask how bad the non-guaranteed part can get, not which non-guaranteed part is higher.

Rows 6 and 7: charge structure and illustration format

IUL, traditional UL and VUL have similar policy-level charges: a premium charge, a policy charge, a cost of insurance levied on the net amount at risk and a surrender charge; VUL adds custody and asset-management fees. A retail ILP has a different shape: bid-offer spread, fund management fee and cost-of-cover charges deducted by cancelling units. In participating whole life and term life the charges are embedded in the premium and cannot be checked item by item. Each IUL charge is explained in charges.

The illustration format follows directly from the regulatory class. Non-participating universal life, IUL included, is illustrated under the LIA guidelines on two scales, the second using the guaranteed crediting rate and maximum charges (LIA MU 22/24, 7 June 2024). An ILP illustration must add a third column at 0% return to the upper and lower investment-return rates, with a statement that the policy value could fall to zero (LIA ILP illustration enhancements, accessed 22 October 2026). The twelve checks for reading an IUL illustration are in how to read a benefit illustration.

Rows 8 to 10: liquidity, premium financing and regulatory class

On liquidity, IUL, traditional UL and participating whole life all offer partial withdrawals (or bonus withdrawals) and policy loans. VUL and ILPs rely mainly on partial withdrawals or redemption of units, and term life has no value to take out. What they share is that surrender during the surrender-charge period returns the surrender value rather than the account value, and that withdrawals and loans reduce the base on which interest is later credited and the death benefit paid (LIA consumer guide, May 2020).

Whether a policy can serve as premium-financing collateral is not a product attribute but a credit decision by the lender: whether to accept it, at what loan ratio and rate, are decided case by case, and the loan may not be rolled over or may call for additional collateral. MoneySense warns that if you take out premium financing and fail to repay on time, you may lose your cover (updated 28 September 2026). Financing platforms and process are on the premium-financing page of the sister site iul.sg; the difference between a policy loan and premium financing is explained in policy loans.

Regulatory class determines PPF treatment. The PPF covers guaranteed benefits only: up to S$500,000 of guaranteed sum assured and up to S$100,000 of guaranteed surrender value per life assured per insurer. Investment-linked policies whose benefits are directly linked to underlying net asset value are not protected, because those are not guaranteed benefits (SDIC, accessed 22 October 2026). The guaranteed part of an IUL is therefore protected within the caps, whereas non-guaranteed index interest and illustrated values are not. The parts of an ILP or VUL that are directly linked to underlying assets are not protected.

After the table: choosing the next step

The table answers which category, not which product. Working through the four questions below usually narrows the field to one or two categories.

Once you have settled on IUL, the next step is to obtain illustrations and product summaries prepared on the same basis. Start with the age at which the guaranteed column runs out and with the charges table, and only then read the illustrated column. Side-by-side parameters for individual products are on the comparison page of the sister site iul.sg. After you receive the policy there is a 14-day free-look period (MoneySense, updated 11 May 2026). Readers who want this interpreted for their own situation can register an enquiry through the contact details on this site.