Use the result for a transparent first-pass actuarial calculation when the probability, interest, exposure, and timing assumptions are already defined on a consistent basis.

Interest rate

Annual effective interest rate as a decimal, such as 0.05 for 5%; must be greater than -1.

Periods per year

Number of installments per year, for example four for quarterly.

Calculate the apportionable premium factor that adjusts an annual premium for installment payment frequency assuming claims occur uniformly over the year. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Apportionable factor

Multiplier applied to the total annual premium to obtain the apportionable installment total.

• Actuarial results are conditional on the supplied mortality, survival, loss, interest, or development assumptions. They are not a premium opinion, reserve certification, or substitute for experience analysis and regulatory judgment.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Compare the result with a second reserving, credibility, or life-contingency method and test how it changes under plausible assumption ranges. Retain the basis and valuation date with the result.

• Net Level Annual Premium Calculator

  Calculate the net level annual premium whose expected present value funds a whole life benefit paid at the end of the year of death.

• Net Single Premium Calculator

  Calculate the net single premium that funds a whole life benefit paid at the end of the year of death.

• Zillmer Reserve Calculator

  Calculate the Zillmer reserve, which raises the valuation premium to recover a per-unit first-year expense allowance and values the policy prospectively with that modified premium.