Disability Income Need Calculator
Calculate your disability income gap by comparing current income against potential disability benefits from employer, Social Security, and savings.
Social Security Disability (SSDI) Benefit Estimator
Estimate your Social Security Disability Insurance (SSDI) monthly benefit based on your average indexed monthly earnings and work credits.
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years
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AIME⧉
$5,833.00
Average Indexed Monthly Earnings used in PIA formula
Est. Monthly SSDI (PIA)⧉
$2,547.00
Replaces 43.7% of pre-disability income
Est. Annual SSDI⧉
$30,564.00
5-year total: $152,820.00
Work Credits⧉
40 / 20
Likely meets work credit requirement
Family Maximum⧉
$2,858.00
Total family benefit: $2,547.00/mo
Dependent Benefit⧉
$0.00
No dependents listed
Total Monthly Income⧉
$2,547.00
Shortfall: $953.00/mo
5-Month Waiting Period⧉
$12,735.00
Benefits start 5 full months after disability onset
Income Replacement Visual
43.7%
SSDI typically replaces 30–60% of pre-disability earnings. Shortfall may need private disability insurance.
SSDI Benefit Breakdown
| Component | Monthly | Annual |
|---|---|---|
| Your SSDI (PIA) | $2,547.00 | $30,564.00 |
| Total Income | $2,547.00 | $30,564.00 |
| Monthly Expenses | $3,500.00 | $42,000.00 |
| Gap / Surplus | -$953.00 | -$11,436.00 |
PIA Bend-Point Calculation
| AIME Range | Factor | Contribution to PIA |
|---|---|---|
| First $1,174 | 90% | $1,056.60 |
| $1,174 – $7,078 | 32% | $1,490.88 |
| Over $7,078 | 15% | $0.00 |
| Total PIA | $2,547.00 |
Work Credits Requirement
| Requirement | Status |
|---|---|
| Total Credits Earned | 40 |
| Credits Needed (age-based) | 20 |
| Recent Work Test (last 10 yrs) | 20 credits needed |
| Eligibility | Likely Eligible |
Planning notes, formulas, and examples
About the Social Security Disability (SSDI) Benefit Estimator
Social Security Disability Insurance (SSDI) provides monthly income to individuals who can no longer work due to a qualifying disability. Your benefit amount depends on your Average Indexed Monthly Earnings (AIME) — essentially your career earnings adjusted for wage inflation — run through a progressive formula that replaces a higher percentage of income for lower earners.
This calculator estimates your Primary Insurance Amount (PIA) using the SSA bend points configured on the page. The formula replaces 90% of the first bend point, 32% of earnings between the two bend points, and 15% above the second.
This is an educational estimate only. Actual SSDI benefits depend on your complete earnings history. Check ssa.gov for your personalized benefit statement.
When This Page Helps
Understanding your potential SSDI benefit helps you plan private disability insurance coverage. Since SSDI benefits are typically modest ($1,500-$2,000/month average), most professionals need supplemental private disability coverage. This calculator shows the gap between SSDI and your actual income needs.
How to Use the Inputs
- Enter your average annual earnings over your working career (or check your SSA statement).
- Enter the number of years you've worked (paying FICA taxes).
- Review the estimated AIME and Primary Insurance Amount (PIA).
- Compare the monthly SSDI benefit to your estimated expenses to identify any coverage gap.
- Consider supplemental private disability insurance to fill the gap.
Formula used
AIME = Total Career Earnings / (Years Worked × 12)
PIA = 90% of first bend point + 32% of AIME between the bend points + 15% of AIME above the second bend point
Maximum SSDI benefit and work-credit requirements change over time; confirm the SSA figures that apply to your claim period.Example Calculation
Result: $2,384/month estimated SSDI benefit
AIME: $70,000 × 20 years / (20 × 12) = $5,833. PIA: 90% of $1,174 = $1,057 + 32% of ($5,833 − $1,174) = $1,491 + 15% of $0 = $0. Total PIA: $1,057 + $1,491 = $2,547/month. With rounding, the estimated benefit is approximately $2,384/month.
Tips & Best Practices
- Check your actual earnings record at ssa.gov — it's the most accurate source.
- SSDI has a 5-month waiting period before benefits begin.
- After 24 months on SSDI, you qualify for Medicare.
- SSDI benefits are taxable if your combined income exceeds certain thresholds.
- Average SSDI benefits are often modest relative to pre-disability income.
- You need to have earned enough work credits (typically 40, or 10 years) to qualify.
- Benefits are based on your highest 35 years of indexed earnings.
Understanding the SSDI Benefit Formula
The Social Security Administration uses a progressive benefit formula designed to replace a higher percentage of income for lower earners. The bend-point formula ensures that workers who earned less during their careers receive a proportionally larger replacement rate, while higher earners still receive meaningful benefits up to the maximum.
SSDI vs. Private Disability Insurance
SSDI has a very strict definition of disability — you must be unable to perform any substantial gainful activity, not just your own occupation. The 5-month waiting period and lengthy approval process (often 1-2 years with appeals) make it unreliable as your only disability protection. Private disability insurance typically has a more favorable "own occupation" definition and shorter elimination periods.
Planning Your Total Disability Protection
Use your estimated SSDI benefit as a foundation, then build private disability coverage on top. Most financial advisors recommend total disability income replacement of 60-70% of gross income. Subtract your estimated SSDI benefit from that target to determine how much private coverage you need.
Sources & Methodology
Last updated:
Frequently Asked Questions
Average Indexed Monthly Earnings (AIME) is your career earnings adjusted for wage inflation, then averaged over your highest-earning 35 years and divided by 12 to get a monthly figure. It's the basis for calculating your SSDI benefit.
The calculator uses the bend points configured on the page. The SSA adjusts these annually for wage inflation, so confirm the bend points for your eligibility year if you need a filing-quality estimate.
Initial SSDI applications take 3-6 months on average, and about 65% are initially denied. Appeals can take 1-2 years. Many applicants need to appeal through a hearing before an Administrative Law Judge. Having a disability attorney can significantly improve approval odds.
SSDI has a Trial Work Period where you can test returning to work. After that, earning above the Substantial Gainful Activity limit for your claim year may cause benefits to stop. Confirm the current SGA amount with SSA because it changes over time.
No. SSDI is based on your work history and earnings. SSI (Supplemental Security Income) is a needs-based program with much lower benefits for disabled individuals with limited income and resources, and its federal payment standard changes over time.
SSDI requires that you cannot perform substantial gainful activity due to a medical condition expected to last at least 12 months or result in death. The SSA uses a 5-step evaluation process. Unlike private disability insurance, there is no "own occupation" definition — the SSA considers any work you could do.
Many private policies have a "social insurance offset" that reduces your private benefit by the amount you receive from SSDI. Check your policy for offset provisions. Some policies are "true own-occupation" and pay regardless of SSDI benefits.
More in this topic
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Elimination Period Savings Need Calculator
Calculate how much savings you need to cover the elimination (waiting) period before disability insurance benefits begin paying.