When individuals purchase life insurance to enable their heirs to pay estate taxes, this is called

Estate conservation typically involves strategies to preserve the value of an estate against taxes and other expenses, but it does not specifically address the immediate need for cash to pay estate taxes. While important, it does not directly relate to the liquidity provided by life insurance.

Estate creation refers to the process of accumulating assets and establishing a financial legacy. This term does not pertain to the use of life insurance for covering estate taxes; rather, it focuses on building wealth rather than addressing the liquidity required after an individual's death.

Survivor protection is a broader term that encompasses various forms of financial security for dependents after the primary income earner passes away. While life insurance does provide protection to survivors, the specific function of enabling heirs to pay estate taxes is more accurately described as liquidity.