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Disability Benefit Calculator

Work out disability benefit instantly with clear inputs, formula shown and shareable results.

About Disability Benefit Calculator

Disability benefits are usually a percentage of pre-disability income, scaled by the assessed degree of disability and payable for a defined benefit period or to a stated age. The replacement rate is deliberately below 100% to preserve the incentive to return to work.

Formulas

Monthly benefit

Benefit = Monthly income x Replacement % x Assessed disability %

Total benefit

Total = Monthly benefit x Benefit period in months

Worked example

With the default values below, Disability Benefit Calculator returns Monthly disability benefit of $50,400.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Monthly pre-disability income
120,000
Assessed degree of disability
60
Benefit as % of income at total disability
70
Benefit period
120 months

Results

Monthly disability benefit
$50,400.00
Total benefit over the benefit period
$6,048,000.00
Monthly income shortfall
$69,600.00
Effective income replacement
42.00%

Step by step

  1. 1Values used
  2. 2Monthly benefit
  3. 3Total benefit
  4. 4Monthly disability benefit= 50,400.00
  5. 5Total benefit over the benefit period= 6,048,000.00
  6. 6Monthly income shortfall= 69,600.00
  7. 7Effective income replacement= 42.00

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax or fees or charges into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Indicative estimate only. Fees, entitlements, limits and formulas vary by jurisdiction, statute, policy wording and the facts of the case. This is not legal, tax, insurance or financial advice — confirm with a qualified professional or the relevant authority.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Indicative estimate only. Fees, entitlements, limits and formulas vary by jurisdiction, statute, policy wording and the facts of the case. This is not legal, tax, insurance or financial advice — confirm with a qualified professional or the relevant authority.

Frequently Asked Questions

What is the difference between own-occupation and any-occupation cover?

Own-occupation pays if you cannot do your own job; any-occupation only pays if you cannot do any suitable work. Own-occupation is materially more valuable.

Is there a waiting period?

Almost always — commonly 30 to 180 days, known as the deferred or elimination period. A longer wait reduces the premium.

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