Calculating Disability Insurance Coverage

The conventional target is 60% of gross income, on the theory that a tax-free benefit at 60% of gross approximates your after-tax pay. On a $10,000 monthly income that is $6,000 a month, and for a household living close to its income it is a reasonable starting point.

It is the wrong frame at higher incomes, and section “The Contract Terms That Actually Matter at High Incomes” makes the full argument: size the benefit against your deterministic fixed costs, not a percentage of gross. The disabled household pays no FICA, makes no further retirement contributions, has no commuting or work costs, and is drawing on already-saved capital alongside the benefit — so the realistic replacement target for a high earner is usually nearer 40% of gross than 60%. Use 60% as the default only where the fixed-cost calculation is not worth doing; where the income is large, do the calculation instead, because the percentage rule will either overinsure you at real cost or — more often, once the group cap binds — give you false comfort.

Consider adjusting your disability insurance based on several factors:

Expected Income

If you are early in your career and anticipate higher earnings in the future, choose a policy that covers potential future income instead of your current earnings.

Existing Disability Insurance Policies

If your current policy does not meet all your needs, supplemental disability insurance can provide additional coverage.

Retirement Contributions

Some insurers offer riders that continue your regular contributions to retirement plans.

Total Lifetime Earnings

Account for potential raises and select a rider that allows for policy adjustments in the future.

Unpaid Debt

Look for disability insurance options that offer benefits covering obligations like student loans if you become unable to work.

Savings

If you have substantial savings, you might manage with a lower disability insurance benefit.

When purchasing disability insurance, you must select a benefit period—the maximum duration for which the policy will provide payments. Options typically include a fixed number of years, ranging from two to 20, or extending until a standard retirement age, generally 65 or 67.

If you are close to retirement and have substantial savings, a shorter benefit period may suffice to protect your financial reserves. However, for those early or midway through their careers, opting for a benefit period that lasts until age 65 is often advisable, anticipating continued income generation.

Age

Insurance rates generally increase as you age. Therefore, securing a policy when you are younger can help you lock in lower rates.

Benefit Period

The length of time that benefits are paid out after a disability occurs affects the cost of your premiums. Opting for a longer benefit period provides greater coverage but also results in higher premiums. You need to balance the need for extended protection with the cost implications.

Coverage Details

The specifics of what your policy covers can significantly impact the cost. Policies that offer more comprehensive coverage and include additional riders, such as cost-of-living adjustments or provisions for partial disability, typically command higher premiums.

Occupation

The nature of your job strongly affects your insurance rates. High-risk occupations are associated with higher premiums due to the increased likelihood of a claim. Those in less risky jobs pay lower rates.

Smoking History

Lifestyle choices, such as smoking, can increase your insurance costs. Insurers view smoking and other risky habits as factors that heighten the risk of becoming disabled, thereby increasing the likelihood of a claim.

Waiting Period

Also known as the elimination period, this is the duration you must wait before your insurance benefits begin after a disability. Choosing a longer waiting period can reduce your premium costs. This option might be feasible if you have other resources to rely on during the initial period of a disability.