Disability Insurance Calculator

Why disability coverage is so often overlooked

People insure their homes and cars without a second thought, yet the asset that pays for those things — their income — frequently goes unprotected. The odds matter: a working-age adult is far more likely to experience a disabling illness or injury that interrupts income than to die during their career. Disability insurance replaces a portion of your paycheck when you can’t work, keeping the mortgage paid and the lights on while you recover. The calculator above sizes that benefit to your real bills.

How the calculation works

The logic is deliberately simple: figure out what you must keep paying each month, then subtract what you’d already receive. Your essential expenses — housing, food, utilities, minimum debt payments, insurance — are what the benefit needs to cover. From that, subtract any existing monthly disability benefit, such as employer group long-term disability or an estimate of Social Security disability. The remainder is the monthly benefit gap an individual policy should fill. The tool also shows roughly 60% of your gross income, because that’s the usual ceiling on how much benefit insurers will issue.

A worked example

Say you earn $6,000 a month gross, your essential expenses are $4,200, and your employer’s group plan would pay $1,500 a month. Your benefit gap is $4,200 − $1,500 = $2,700 a month. Check it against the cap: 60% of $6,000 is $3,600, so a $2,700 benefit is well within the insurable range. If your essential expenses had been $5,000, your raw gap would be $3,500 — still under the $3,600 cap, but close enough that you’d want to keep an emergency fund for anything above it.

The features that shape your cost

• Elimination period. The waiting period before benefits begin (30–180 days). A longer wait lowers the cost but demands more savings.
• Benefit period. How long benefits last — 2 years, 5 years, or to age 65/67. To protect against a career-ending event, longer is safer.
• Definition of disability. “Own-occupation” pays if you can’t do your specific job; “any-occupation” only pays if you can’t do any job. Own-occupation is stronger (and pricier).
• Riders. Cost-of-living adjustments, residual benefits for partial disability, and future-increase options can be valuable depending on your career stage.

Group vs. individual coverage

If your employer offers group long-term disability, take it — but understand its limits. It usually covers around 60% of base salary (not bonuses or commissions), the benefit may be taxable if the company pays the cost, and it ends when you leave. An individual policy is portable, can be structured as own-occupation, and pays tax-free when you fund it yourself. Many professionals layer an individual policy on top of group coverage to close the gap the calculator reveals and to make sure their protection follows them between jobs.

What to do with your number

Take the monthly benefit from the calculator to an independent agent and request quotes that specify your desired elimination period, benefit period and definition of disability. Protecting your income is the foundation that makes your other financial plans — your life insurance, your savings, your mortgage — actually hold up if the unexpected happens to you while you’re still working.