How is life insurance need calculated?
Your annual income multiplied by the years you choose is added to your mortgage, debts, education goal, final expenses and other obligations. Existing life insurance and the assets you choose to count are then subtracted. The additional estimate never goes below $0.
Use a consistent set of assumptions. If income replacement already covers an expense, adding it again may overstate the need. This simple method does not model inflation, investment returns, taxes, changing expenses or the affordability of an actual policy. An estimate of $0 does not prove that you have sufficient protection.