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Single-premium life insurance

Single-premium life insurance is paid with one lump sum. How it works, why it is almost always a modified endowment contract, and who uses it.

4LifeInsurance · Published October 4, 2026

Single-premium life insurance is a permanent policy you buy with one lump-sum payment instead of ongoing premiums. The policy is paid up on day one, builds cash value from the start and pays a death benefit that is usually a multiple of what you paid. Because it is funded so quickly, it almost always fails the federal seven-pay test and is treated as a modified endowment contract (MEC), which changes how loans and withdrawals are taxed.

How it works

You give the insurer a lump sum, which might come from savings, an inheritance, a home sale, a bonus or a 1035 exchange of an old policy. In return you receive a policy with a stated death benefit that does not require further premiums. The policy can be built on a whole life, universal life, indexed universal life or variable universal life chassis, so the cash value mechanics depend on which. The whole life version has guaranteed values. The others have crediting or investment risk, covered in the related guides.

Typically:

  • The death benefit is higher than the premium, often a few times the amount paid, and the multiple falls as the insured's age rises. Underwriting still applies: you generally need to qualify medically, although some products use simplified underwriting.
  • There may be a surrender charge schedule that makes early exit costly.
  • Cash value starts positive on day one, but is lower than the premium paid because of costs.

Why it is almost always a MEC

Federal tax law imposes the seven-pay test on life insurance contracts. A policy fails it if the total premiums paid during the first seven years exceed the amount that would have been needed to pay up the contract in seven level annual payments. A single premium obviously exceeds that, so the contract is a MEC from issue. See modified endowment contracts and the 7-pay test and section 7702.

What a MEC means in practice:

Ordinary life policy MEC
Death benefit to beneficiaries Generally income-tax-free Generally income-tax-free
Tax-deferred growth Yes Yes
Policy loans Generally not taxed while in force Taxed on gains first, as income
Withdrawals Basis first Gains first
Penalty before 59 and a half None Generally 10 percent additional tax on the taxable portion

So the tax-free access that makes ordinary permanent insurance attractive for living benefits mostly goes away. The tax-free death benefit remains. Because the rules are technical, confirm treatment with a tax professional before you rely on anything below.

Who uses it

  • Legacy and estate planning. A person with idle cash and a wish to leave a larger, tax-free amount to heirs may use a lump sum to create a larger death benefit. Wealthier buyers may place the policy in a trust. See using life insurance in an estate plan and irrevocable life insurance trusts.
  • Older buyers with an unwanted asset. Someone with an old annuity or cash they will not spend may want to convert it into a death benefit. Note that tax on annuity gains can apply when you take the money out to buy the policy, unless a tax-free exchange is allowed. See 1035 exchanges: swapping policies without tax.
  • Gifts to children or grandchildren. A policy bought on a child's life with one payment locks in coverage at young-age prices. See whole life insurance for children: pros and cons.
  • Funding a charitable or business goal with a defined, one-time commitment.

A hypothetical example

Say a 60-year-old with a medical clearance puts $100,000 into a single-premium whole life policy. In this example the policy offers a $230,000 death benefit and a guaranteed cash value of about $93,000 in the first year. The figures are invented.

  • If she dies in year 10, her beneficiaries get $230,000 income-tax-free, a gain of $130,000 over the premium.
  • If she needs money in year 10 and takes a loan, the gain portion is taxable as income and the 10 percent additional tax applies if she is under 59 and a half.
  • If she lives to 90, the death benefit is fixed, so the return depends entirely on when she dies.

A buyer comparing this with leaving the $100,000 invested would need to compare the guaranteed death benefit with the likely after-tax result of investing, including taxes on investment gains and estate tax if applicable. The 2026 federal estate tax exemption is $15,000,000 per person according to IRS announcement IR-2025-103, so most families will not owe federal estate tax. See life insurance and the federal estate tax.

Costs and drawbacks

  • Liquidity. The money is largely committed. Early surrender can mean a loss because of costs and surrender charges.
  • No growth in coverage if inflation rises, unless you choose a policy design that includes it.
  • Underwriting. Most designs require you to qualify medically, so a buyer in poor health may be offered less coverage per dollar or be declined.
  • Product risk. Non-whole-life designs depend on crediting rates or investment performance and could underperform illustrations.
  • Opportunity cost. The lump sum could earn a return elsewhere.

Alternatives

If the goal is lifelong coverage with less money up front, limited-pay whole life: 10-pay, 20-pay and paid-up at 65 spreads payments over 10 or 20 years, though it can also approach MEC limits. If the goal is estate liquidity, a policy in a trust with annual premiums covered by gifts may fit. If the goal is simply guaranteed income, an annuity may serve better; see life insurance vs annuities: opposite tools for opposite risks and Single premium immediate annuities (SPIAs): how they work.

Checklist before buying

  1. Is the policy a MEC, and have I confirmed the tax treatment with a tax professional?
  2. What is the guaranteed death benefit and cash value, not just the projected values?
  3. What is the surrender charge schedule?
  4. Where is the lump sum coming from, and are there taxes on moving it?
  5. Who owns the policy, and should it be owned by a trust?
  6. Is the insurer financially strong? See AM Best, S&P, Moody's and Fitch ratings explained.

Key takeaways

  • Single-premium life is a permanent policy paid with one lump sum, producing a larger death benefit than the premium.
  • It almost always fails the seven-pay test and becomes a MEC, so loans and withdrawals are taxed gains-first, with a possible 10 percent additional tax before 59 and a half.
  • The death benefit generally stays income-tax-free to beneficiaries.
  • It suits people with spare capital and a legacy goal, not people who need liquidity.
  • Compare guaranteed values and alternatives such as annuities or limited-pay policies before committing.

Terms used in this guide

Whole life insurance Permanent life insurance with fixed premiums, a guaranteed death benefit and guaranteed cash value growth, sometimes boosted by dividends. Cash value The savings component that builds inside whole life, universal life and other permanent policies, which the owner can borrow against or withdraw. Seven-pay test The IRS test that flags a policy as a modified endowment contract if premiums in its first seven years exceed what would pay it up in seven level payments. Section 7702 The federal tax code section that defines which contracts count as life insurance, limiting how much cash value a policy can hold for its death benefit. Cost basis For life insurance and annuities, the after-tax money put in (premiums minus tax-free amounts taken out), which sets how much of a payout is taxed. Death benefit The money a life insurance policy pays to the beneficiaries when the insured dies, usually the face amount adjusted for loans, riders and dividends.

Related tools

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