Calculator Inputs
Example Data Table
| Scenario | Income | Target Ratio | Waiting | Period | Inflation | Recommended Monthly Benefit | Estimated Monthly Premium |
|---|---|---|---|---|---|---|---|
| Office Professional | $90,000 | 60% | 90 days | To 65 | 3% | $4,500 | $95 |
| Skilled Trade | $70,000 | 55% | 180 days | 10 years | 2% | $3,208 | $110 |
| Medical Specialist | $220,000 | 65% | 60 days | To 65 | 3% | $10,000 (cap) | $410 |
Formula Used
- Monthly Income = Annual Income ÷ 12
- After-tax Target = Monthly Income × Replacement Ratio
- If benefits are taxable: Gross Target = After-tax Target ÷ (1 − Tax Rate)
- Coverage Gap = Gross Target − Existing Monthly Benefit
- Recommended Benefit = min(Coverage Gap, Benefit Cap)
- Annual Benefit = Recommended Benefit × 12
- Base Premium = Annual Benefit × Base Rate
- Adjusted Premium = Base Premium × Factors
- Factors include waiting period, benefit period, inflation, risk, smoker, health, policy type, and riders.
- Each year: Annual Benefit = Monthly Benefit × 12
- Cumulative payout adds annual benefits over the benefit period.
- If inflation protection is selected, monthly benefit increases annually by that rate.
How to Use This Calculator
- Enter your age, annual income, and your target replacement ratio.
- Add any existing employer disability benefits to avoid double counting.
- Choose benefit period and waiting period to match your emergency fund.
- Select risk and underwriting proxies (occupation class, smoker, health rating).
- Toggle riders to see trade-offs between features and estimated premiums.
- Click Calculate Coverage and review results above the form.
- Use Download CSV or Download PDF for reports.
Insights
Income Replacement Targets
This calculator converts annual income into a monthly baseline, then applies a replacement ratio to set a target. Many households model 50% to 70% coverage to protect essentials. If benefits are taxable, the tool gross-ups the target using your marginal rate, so the modeled net support stays closer to the goal. For example, a $7,500 monthly income at 60% produces a $4,500 target.
Benefit Gap and Caps
Existing coverage is deducted from the modeled target to estimate the remaining gap. The recommended additional benefit is then capped by the monthly maximum you choose. Caps matter when income is high or when riders increase cost: a $10,000 cap can limit the modeled solution even if the gap is larger. The “Unfunded Gap” percentage highlights how much of the gross target remains uncovered after applying the cap.
Waiting Period and Benefit Duration
Waiting period is treated as a pricing lever: longer elimination periods reduce the modeled premium because claims are less frequent. Benefit duration also shifts cost. A two-year period is modeled cheaper than long-term coverage, while “to age 65” increases the factor as potential payout months expand. The projection table translates these choices into year-by-year totals and cumulative payout.
Rider and Underwriting Factors
Riders are modeled as multipliers that raise estimated premium in exchange for broader protection. Residual disability can support partial income loss. Future increase options can help keep pace with earnings. Own-occupation definitions can broaden eligibility for specialized work. Occupation class, smoking status, and health rating are combined into an overall risk adjustment to approximate underwriting sensitivity without requiring medical detail.
Scenario Testing and Export Controls
The most effective workflow is to run three scenarios: baseline, conservative (higher waiting, fewer riders), and comprehensive (inflation protection plus riders). Compare monthly premium versus projected total payout. Use the CSV export for spreadsheet comparisons and the PDF export for sharing a clean snapshot. Store outputs with your date and assumptions so later runs remain comparable and auditable clearly.
FAQs
1) What does “replacement ratio” represent?
It estimates the portion of your monthly income you want covered during disability. Many users start between 50% and 70%, then refine it using required bills and savings goals.
2) Why does taxable benefit selection change my target?
If benefits are taxed, the same gross benefit produces less take-home value. The calculator gross-ups the target using your marginal rate to keep modeled after-tax support closer to your goal.
3) How should I choose a waiting period?
Match it to your emergency fund and paid leave. A longer waiting period can reduce modeled premiums, but it also increases how long you must self-fund before benefits begin.
4) What is the benefit cap used for?
Insurers often limit monthly benefits. The cap prevents unrealistic recommendations and shows when high income or high targets exceed typical limits, leaving an uncovered portion in the gap metric.
5) Are the premium numbers real quotes?
No. They are educational estimates based on simplified factors from your selections. Actual pricing depends on carrier rules, occupation definitions, medical underwriting, and policy details.
6) How can I compare multiple scenarios efficiently?
Run each scenario, then export CSV files and compare recommended benefit, premiums, and cumulative payout side-by-side. Keep inputs consistent so differences reflect only the parameter you changed.