How Much Disability Insurance Do I Need?
Long-term disability is the biggest gap in most household insurance plans. About 25% of working-age Americans will experience a disability lasting 90+ days at some point in their career, and the average claim lasts 31.6 months. Most people are vastly underinsured because they assume Social Security Disability or employer short-term disability will cover them — neither does.
Use the calculator
Disability Insurance Calculator
Step-by-step
- 1
Calculate your monthly need
Aim to replace 60–70% of pre-tax income. If you earn $7,000/month, target $4,200–$4,900 of monthly disability benefit. This accounts for the fact that disability benefits paid from after-tax-funded policies are tax-free, so 60–70% of gross matches close to 100% of net.
- 2
Subtract employer-provided coverage
Most employer LTD plans pay 50–60% of base salary, capped at $5,000–$15,000/month. Find your plan summary. The gap between what employer LTD pays and your 60–70% target is what you need to buy individually.
- 3
Choose own-occupation vs any-occupation
Own-occupation pays if you cannot do YOUR specific job (a surgeon who can no longer perform surgery still gets benefits even if she can teach). Any-occupation pays only if you cannot do ANY job your training fits. Own-occupation costs 30–60% more but is the right call for high-skill professionals — the definition of "disabled" is far easier to meet.
- 4
Set the elimination period to match your savings
Elimination period (the deductible-equivalent for disability) is typically 30, 60, 90, 180, or 365 days. Each step longer cuts the premium 15–25%. Standard recommendation: match the elimination period to your liquid savings — 90 days if you have 3 months of expenses, 180 days if 6 months.
- 5
Pick the benefit period
Common choices: 2-year, 5-year, 10-year, to-age-65, to-age-67. To-age-65 (or 67) is the standard for primary working-age coverage. Premium increases ~15–25% from 5-year to to-age-65, but the protection from a permanent disability claim is dramatically better.
- 6
Add cost-of-living adjustment (COLA) rider
Without COLA, your $5,000/month benefit is $5,000/month forever — even 25 years into a claim. With COLA (typically 3% annual), the benefit grows with inflation. Adds 15–25% to premium but is essential for claims that may last decades.
- 7
Compare 3+ carriers
Disability insurance pricing varies more than life insurance — same applicant can see 50%+ premium spread across carriers. Top names: Guardian, Principal, Standard, MassMutual, Ameritas. Use an independent broker who shops at least 4 carriers.
💡 Tips
- Buy young. A 30-year-old in good health pays $40–$80/month for $5,000 of monthly disability benefit; a 50-year-old pays $180–$280 for the same coverage.
- Premiums you pay yourself create tax-free benefits at claim time. Premiums paid by your employer create taxable benefits. If your employer offers LTD as a tax-free voluntary benefit you pay for, take it.
- Some occupations (physicians, lawyers, dentists) have specialty carriers that price more aggressively — Berkshire Mutual, Principal Life Specialty Markets, Standard Disability.
FAQ
Will Social Security Disability cover me if I cannot work?
Probably not. SSDI requires you to be unable to perform ANY substantial work, not just your specific job. Approval rates on initial applications are 30–35%, and the average benefit is about $1,500/month — well below most working-age income needs. Treat SSDI as a backstop, not primary coverage.
How long do disability claims typically last?
Average claim duration is 31.6 months according to the Council for Disability Awareness. Roughly 1 in 7 claims becomes permanent. The longer the claim, the more valuable a to-age-65 benefit period becomes vs a 5-year or 10-year cap.
Is short-term disability worth buying separately?
Usually no for individual purchase. Short-term disability is typically only worth it through an employer voluntary plan (heavily subsidized). For personal short-term coverage, an emergency fund of 3–6 months of expenses is the cheaper and more flexible answer.
Does disability insurance cover mental health and substance abuse?
Most policies cap coverage for mental and nervous conditions at 24 months total benefit. Substance abuse is usually limited to 12–24 months. Some carriers offer full mental-health coverage as a higher-cost rider — worth considering for professionals in stress-heavy fields.
Can I deduct disability insurance premiums on my taxes?
Personal disability premiums are not deductible. Business owners deducting LTD premiums for themselves on a business return turn the future benefits into taxable income. Almost always better to pay personal-side and get tax-free benefits.