The Two Approaches to Life Insurance

You can use one of two approaches to estimate how much life insurance you should buy: the needs approach or the replacement-income approach. Using the needs approach, you calculate the amount of life insurance necessary to cover your familys financial needs if you die. Using the replacement-income approach, you calculate the amount of life insurance you need to equal the income your family will lose. Lets look briefly at each approach.

You need how much?

Using the needs approach, you add up the amounts that represent all the needs your family will have after your death, including funeral and burial costs, uninsured medical expenses, and estate taxes. However, your family depends on you to pay for other needs, such as your childs college tuition, business or personal debts, and food and housing expenses over time.

The needs approach is somewhat limiting. The task of identifying and tallying family needs is difficult, and separating the true needs of your family from what you want for them is often impossible.

Replacing Income

Using the replacement-income approach for estimating life insurance requirements, you calculate the life insurance proceeds that would replace your earnings over a specified number of years after your death.

Life insurance companies sometimes approximate your replacement income at four or five times your annual income. A more precise estimation considers the actual amount your family members need annually, the number of years for which they will need this amount, and the interest rate your family will earn on the life insurance proceeds, as well as inflation over the years during which your family draws on the life insurance proceeds.
Note: Do remember as you quantify the income you want to replace that Social Security provides generous survivors benefits if youve qualified. These benefits can easily total $2,000 a month or more.

Calculating Replacement-Income Amounts with Excel

If youve got access to a computer running Microsoft Excel, the popular spreadsheet program, you can use your computer to calculate the amount of insurance you need to replace a specified number of years of income. Suppose, for example, that you want to buy enough life insurance to replace the income from a $50,000-a-year job for 15 years. If you figure your family will earn 5% on the life insurance proceeds should the worst case scenario occur, you enter the following formula into a cell in an Excel workbook to calculate the replacement income life insurance amount:

=-PV(5%,15,50000)

Excel returns the formula result 518,982.90 indicating that you would need roughly $520,000 of life insurance, invested at 5%, to payout $50,000 a year for 15 years.

Two Calculation Tips

If you want to factor in inflation because youre trying to replace income over a long period of time, you should use a real rate of return rather a regular, or nominal, rate of return.
To calculate a real rate of return, subtract the inflation rate from the interest rate in the formula. For example, if you expect 2% inflation, you could replace the formula shown earlier with this formula:

=-PV(5%-2%,15,50000)

Heres a final calculation tip: You probably want to round up your number. For example, if the formula provided earlier returns the value 518982.90, you might want to round up this value to $600,000. Or $750,000.

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If they believe that the applicant will live long and will therefore make a substantial number of insurance premium payments during his/her life, then life insurance companies see the applicant as low risk to their business. However, if life insurance companies believe that an applicant could die soon, and therefore make relatively few insurance premium payments while they are alive, that candidate will be seen as a higher risk by the insurance companies.

How life insurance premiums are calculated

When calculating life insurance premiums two factors are considered by life insurance companies. The first factor involves an evaluation of the general likelihood of death occurring at a particular age, and involves the scaling of applicants against normal life expectancy. This sets the ‘average’ risk level that different age ranges attract; needless to say that the closer you are to your average life expectancy then the higher the risk level that you’ll be measured against.

The second factor is based on whether the applicant is above or below their average risk level for their age. Someone who has an unhealthy lifestyle, suffers from pre-existing health conditions and is in a stressful job is likely to be classified as ‘above average’. On the flip side, someone who goes to the gym regularly, does not smoke and eats a balanced diet is likely to be seen as ‘below average’. Naturally, those who are below average risk will see keener insurance premiums on their life insurance policy for their age than people who are classified as ‘above average’.

Cheaper life insurance?

While there is often little we can do about pre-existing health conditions, there are ways in which to tip the scales in our favour of cheaper life insurance. This we can do by altering our lifestyle and striking a better work-life balance in a stress-free environment. Changing lifestyle habits though can be more effective for some than it can for others.

For instance, a person in their 20s living out an unhealthy existence is likely to be seen as less of an insurance threat for their age to life companies than someone in their 50s with the same unhealthy lifestyle. This is because the body of a 20-year-old will respond more efficiently to improvements in lifestyle than will the body of a 50-year-old. In essence therefore, there are different degrees of being above average and below average, making the calculation of life insurance premiums for each individual definitely a job for the experts at the life companies!

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