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What This Calculator Does
This disability income coverage calculator helps working professionals, self-employed individuals, and financial advisors determine the right amount of disability insurance (DI) to carry. It calculates your target monthly benefit based on a percentage of gross income, compares it against existing employer and individual DI policies, and identifies the coverage gap. The tool also projects the total benefit needed through age 65 and provides 2026 industry benchmarks for elimination periods, benefit amounts, and premium costs.
The Formula
Disability insurance replaces a portion of your income if you cannot work due to illness or injury. The standard target is 60% to 70% of gross income. This percentage accounts for the fact that individual DI benefits are typically tax-free when you pay the premiums yourself, so 60% of gross income often approximates your take-home pay. The gap between your target benefit and any existing employer-provided coverage determines how much additional individual DI insurance you need.
Step-by-Step Example
Calculate monthly income
Annual gross income of $95,000 equals $7,917 per month.
Apply replacement target
At 60% replacement, your target monthly benefit is $4,750.
Subtract existing coverage
Employer DI provides $2,000 per month. Individual DI: $0. Coverage gap: $2,750 per month.
Project long-term need
At age 35, with 30 years to age 65, the total unprotected income risk is $2,750 x 12 x 30 = $990,000.
Real-World Use Cases
Self-Employed Professionals
Doctors, lawyers, dentists, and business owners who have no employer DI coverage and depend entirely on their ability to work for income.
High-Income Earners
Professionals earning above the employer group DI cap (often $5,000 to $10,000 per month) who need supplemental individual DI to close the gap.
Financial Planning Reviews
Advisors can identify DI coverage gaps during annual reviews, especially for clients whose income has increased since they last reviewed their policies.
Common Mistakes to Avoid
Relying solely on employer group DI. Most employer plans cap benefits at 60% of base salary up to $5,000 to $10,000 per month and often exclude bonuses and commissions.
Choosing "any occupation" coverage instead of "own occupation." Any-occupation policies only pay if you cannot work in any job, which is a much harder standard to meet.
Selecting a benefit period that is too short. A 2-year benefit period provides minimal protection. Choose coverage to age 65 for true income protection.
Ignoring the elimination period trade-off. A 90-day elimination period is standard and reduces premiums. Shorter periods (30 days) cost significantly more and may not be necessary if you have an adequate emergency fund.
Not understanding that employer-paid DI benefits are taxable. If your employer pays the premium, your benefit is taxed as income, reducing the effective replacement percentage.
Frequently Asked Questions
Accuracy and Disclaimer
This calculator provides estimates for planning purposes. Actual disability insurance coverage, premiums, and policy terms depend on your health, occupation, insurer, and policy structure. Consult a licensed insurance professional for personalized recommendations. Benchmarks reference 2026 industry data.
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