Income Protection Insurance Calculator
Income protection insurance pays a monthly benefit when illness or injury prevents you from working. The standard industry replacement ratio is 60 to 70 percent of pre-disability gross income, which approximates your net take-home pay when benefits are received income-tax-free from an individually owned policy. This calculator estimates your target monthly benefit, identifies your coverage gap, and estimates how long your emergency fund will sustain you through an elimination period.
Income protection benefit formula
Target Monthly Benefit = Gross Monthly Income x Replacement Ratio
Coverage Gap = max(0, Target Benefit - Existing Group Benefit)
Elimination Period Cost = Monthly Essential Expenses x (Elimination Weeks / 4.33)
Fund Surplus/(Shortfall) = Emergency Fund - Elimination Period Cost
The 60 to 70 percent replacement ratio is the standard used by LIMRA and disability income insurers. Individually purchased policies are paid with after-tax dollars so benefits arrive income-tax-free, meaning a 65% gross replacement closely mirrors 100% of net take-home pay for most earners.
Choosing an elimination period
- A shorter elimination period (4 to 8 weeks) means higher premiums but you need less emergency savings.
- A 13-week (90-day) elimination period is the most common balance of cost and self-insurance.
- If you have significant liquid savings, a 26 or 52-week elimination period substantially reduces your premium.
- Your elimination period should match the length of time your emergency fund can cover your essential expenses without any income.
Frequently asked questions
What is income protection insurance?
Income protection insurance (also called disability income insurance) pays a monthly benefit if you cannot work due to illness or injury. In the US, individually owned policies typically cover 60 to 70 percent of pre-disability gross income. Benefits continue until you can return to work, or until the benefit period ends (typically to age 65 or for a defined number of years).
How is the benefit amount calculated?
The standard method used by US disability insurers is to cap the monthly benefit at 60 to 70 percent of your gross monthly income. Some insurers also consider your after-tax income to ensure you do not earn more on claim than you did while working. The benefit amount is set at policy issue based on your documented income.
What is the difference between income protection and life insurance?
Life insurance pays a lump sum on death. Income protection pays a monthly benefit while you are alive but unable to work. Statistics from the Social Security Administration show you are 3.5 times more likely to be disabled for 90 days or more during your working life than you are to die before age 65, making income protection a critical but often overlooked coverage.
Does employer group disability insurance provide enough coverage?
Employer group disability insurance typically replaces 60 percent of base salary, but may exclude overtime, bonuses, and commissions. Benefits are taxable if premiums were paid by the employer (before-tax). This reduces the effective replacement ratio. Additionally, group coverage ends when you leave employment, making individual coverage important.
What occupation class affects income protection premiums?
Insurers classify occupations into classes (typically 1 to 6, or A to E) based on injury risk and ability to return to work. A sedentary office professional is class 1 (lowest risk, lowest premium). A manual laborer or someone working with machinery is a higher class (higher risk, higher premium or restricted coverage).
Official sources
- Social Security Administration: Disability and Death Probability Tables for Insured Workers.
- LIMRA: Disability Insurance Awareness Research.
- DOL: DOL Disability Insurance Resources.
Reviewed by the CalculatorHub team, edited by James Graham, 14 June 2026. See our methodology.