Should coverage equal the mortgage balance?
Matching the loan can protect the home, but it may ignore the loss of income or unpaid work that keeps the household functioning. Survivors still face groceries, taxes, utilities, maintenance, transportation and long-term goals.
For a household with strong savings and two stable incomes, the necessary amount may be closer to the debt. For a single-income family with young children, the need may be much higher.
How do you calculate an initial estimate?
List immediate obligations: mortgage, other debts, final expenses and an emergency reserve. Then estimate the income or caregiving support needed for a chosen number of years and add education or dependent-care goals.
Subtract liquid savings, existing personal life insurance and dependable employer benefits. Be cautious about counting assets that would be difficult or undesirable to sell.

How should couples calculate coverage?
Calculate each person separately. Equal mortgage ownership does not mean equal insurance needs. One partner may earn more income, while the other provides childcare or household work that would be expensive to replace.
Consider whether one survivor would keep the home, reduce the mortgage, move or temporarily stop working.
How often should the amount be reviewed?
Review after a home purchase, renewal, refinance, birth, marriage, separation, job change, major debt change or significant increase in savings.
Personal policies can sometimes be adjusted or supplemented. Lender coverage may change automatically with the mortgage balance, but that does not ensure the broader need remains covered.