Disability Income Protection Calculator
Calculate your monthly essential expense gap if an illness or accident prevents you from working.
If your employer pays for your Long-Term Disability (LTD) policy, IRS rules mandate that benefit payouts are taxed as ordinary income. A 60% gross benefit may only replace 42% to 45% of your take-home pay after taxes. Conversely, benefits from personally paid individual policies are 100% tax-free.
Non-negotiable monthly overhead: mortgage/rent, groceries, utilities, debt, and healthcare.
Net after-tax payouts from employer group LTD plans, spouse income, and passive investments.
The shortfall drained from your emergency savings each month to avoid insolvency.
Monthly Income & Essential Overhead
Establish your baseline earnings and minimum essential burn rate required to keep a roof over your head.
Employer Group Benefits & Outside Income
Factor in group disability insurance provided by your employer and secondary household income.
Liquid Emergency Savings & Survival Runway
Determine how long your emergency cash reserves can sustain monthly shortfalls before severe financial distress.
Estimated Monthly Income Gap & Cash Runway
Monthly Income
Essential Expenses
Existing Protection
Estimated Monthly Gap
What This Means
This estimate suggests how your household overhead coordinates with available replacement benefits during prolonged disability:
- Disability is More Prevalent Than Premature Death: According to the Social Security Administration, just over 1 in 4 of today's 20-year-olds will experience a disabling event before reaching age 67.
- Own-Occupation vs. Any-Occupation: A True Own-Occupation policy pays if you cannot perform the specific duties of your medical, legal, or specialized profession, even if you could theoretically work in another field. Many group employer policies switch to restrictive "Any-Occupation" definitions after 24 months.
- Elimination Periods (Waiting Horizon): Long-Term Disability policies do not pay on day one. They require a 90-day or 180-day elimination period during which you must rely entirely on emergency cash reserves or Short-Term Disability.
Actual disability coverage depends on policy definitions, waiting periods, benefit duration, and medical underwriting exclusions.
How We Calculated It
Important Assumptions
Assumes an effective 25% federal and state tax rate applied to employer-sponsored group disability benefits.
Assumes essential living expenses remain constant without accounting for additional medical copays or caregiver costs.
Assumes a standard 90-day waiting period before Long-Term Disability benefits begin disbursing.
Most group LTD policies dollar-for-dollar offset benefits if you qualify for federal Social Security Disability (SSDI).
Things You May Want to Review
Check whether your employer policy uses "Own-Occupation" or switches to "Any-Occupation" after 2 years.
Nearly all group LTD policies cap benefits for depression, anxiety, or stress-related claims at 24 months maximum.
Adding an individual policy closes the tax gap and provides portable coverage that follows you if you switch employers.
Allows you to increase your disability benefit as your income grows without undergoing repeat medical exams or blood tests.
Related Insurance Concepts
Related Guides & Recommended Next Tools
Actuarial Formula & Assumptions
Models essential living expenses against after-tax employer group LTD benefits and calculates emergency cash runway.
Frequently Asked Questions: Disability Income Protection Calculator
Expert mathematical answers, formula explanations, and related comparison guides.