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👫 '''Joint-and-survivor annuity''' is a [[Definition:Life annuity | life annuity]] contract that provides regular income payments for as long as either of two designated individuals — typically spouses or domestic partners — remains alive. When the first annuitant dies, the surviving annuitant continues to receive payments, often at the same level or at a reduced percentage (commonly 50%, 66⅔%, or 75% of the original amount), until their own death. This structure addresses a fundamental longevity-planning need: ensuring that a surviving partner does not outlive the household's retirement income, which makes it a staple offering in both individual [[Definition:Annuity | annuity]] markets and employer-sponsored [[Definition:Pension | pension]] schemes worldwide.

🔄 Pricing a joint-and-survivor annuity requires [[Definition:Actuarial science | actuaries]] to model the joint survival probability of both lives, drawing on age- and gender-specific [[Definition:Mortality table | mortality tables]] (or, increasingly, longevity-adjusted projections) for each annuitant. Because the insurer's payment obligation extends until the second death — statistically longer than a single-life annuity on either individual — the periodic payout for a given [[Definition:Premium | premium]] is lower than what a [[Definition:Single-life annuity | single-life annuity]] would offer. The survivor benefit percentage is a key design lever: a 100% continuation rate provides the strongest protection for the surviving partner but results in the lowest initial payment, while a 50% survivor option delivers a higher starting income at the cost of a significant reduction upon the first death. Some contracts embed a [[Definition:Guaranteed period | guaranteed period]] — say, ten or fifteen years — during which payments continue to a [[Definition:Beneficiary | beneficiary]] even if both annuitants die, adding an estate-protection feature. Under [[Definition:IFRS 17 | IFRS 17]] and other reporting frameworks, the insurer recognizes the liability over the expected joint lifetime, regularly updating assumptions for mortality improvement trends.

🛡️ Across many jurisdictions, joint-and-survivor annuities occupy a privileged regulatory position. In the United States, the Employee Retirement Income Security Act (ERISA) mandates that defined-benefit pension plans offer a qualified joint-and-survivor annuity as the default form of benefit unless the spouse consents in writing to an alternative. Similarly, pension schemes in Canada, the UK, and parts of continental Europe either require or strongly incentivize joint-life income options for married participants. For life insurers and [[Definition:Pension buyout | pension buyout]] providers, the joint-and-survivor book of business represents a long-duration [[Definition:Liability | liability]] that demands careful [[Definition:Asset-liability management (ALM) | asset-liability matching]], particularly in a low-interest-rate environment where extending duration to match far-out cash flows can introduce [[Definition:Credit risk | credit risk]] and [[Definition:Liquidity risk | liquidity risk]]. The product remains one of the most direct market solutions to household-level [[Definition:Longevity risk | longevity risk]], and its design continues to evolve — with features such as inflation-linked escalation clauses and deferred-start options — as populations age and retirement income adequacy climbs higher on the policy agenda.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Life annuity]]
* [[Definition:Single-life annuity]]
* [[Definition:Longevity risk]]
* [[Definition:Pension buyout]]
* [[Definition:Asset-liability management (ALM)]]
* [[Definition:Mortality table]]
{{Div col end}}

Definition:Joint-and-survivor annuity - Revision history

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