Back to Financial & Investment

TPD & Trauma Insurance Calculator

Estimate annual premiums for TPD (Total Permanent Disability) and Trauma (critical illness) insurance in NZ. Stepped vs level premium comparison.

By Konstantin IakovlevPublished 28 March 2026Last reviewed
Data stays on your deviceVerified formula

About this calculator

This calculator implements NZ life insurance market premium rate cards (TPD + Trauma) from Partners Life, AIA, Asteron. Last consulted 18 May 2026. Verify the figures yourself by following the link.

NZ TPD & Trauma insurance market

Indicative premium rates 2026
  • Trauma cover lump sum (typical): $100,000-300,000
  • TPD cover lump sum (typical): $200,000-600,000
  • Trauma covered conditions: 40+ (cancer, heart attack, stroke...)
  • Stepped premium rise (35→55): ~5× over 20 years
  • Level premium loading: +65% vs stepped initially
  • Major NZ providers: Partners Life, AIA, Asteron, Cigna

Source: Financial Services Council NZ

Disclaimer

This calculator provides estimates for general information purposes only. Results should not be relied upon as professional financial, tax, or legal advice. Tax rates and thresholds are based on publicly available IRD data and may change. Always consult a qualified tax agent or financial adviser for advice specific to your circumstances.

How NZ TPD & Trauma premiums are priced

Premium = (cover ÷ $100k) × age-band rate × smoker loading × structure loading.

  1. 1

    Base rate from table

    Base = TPD_or_Trauma_rate[age_band, gender] per $100k cover

    Trauma is ~2× TPD at same age (more frequent claims).

  2. 2

    Smoker loading

    Loading_smoker = ×2.1 if smoker, else ×1.0

    Material — declare honestly.

  3. 3

    Premium structure

    Loading_level = ×1.65 if level premium, else ×1.0 (stepped)

    Stepped starts cheaper but rises ~5× by age 55.

  4. 4

    Annual premium

    Annual = (cover ÷ 100,000) × base × loadings × 12

    Real underwriting may apply further loadings/exclusions for health.

Worked example

Inputs: Trauma $200k, 35-39 male, non-smoker, stepped

Result: Rate $330/$100k × 2 = $660/yr stepped. ~$55/mo.

Frequently Asked Questions

What's the difference between TPD and Trauma insurance?
Trauma cover (also called Critical Illness) pays a lump sum if you're diagnosed with one of a defined list of serious conditions (cancer, heart attack, stroke, major surgery, etc.) — even if you fully recover. TPD (Total Permanent Disability) only pays if you become totally and permanently unable to work. Trauma is more commonly claimed; TPD is for catastrophic outcomes. Source: Financial Services Council NZ.
Should I get stepped or level premiums?
Stepped premiums start cheap (e.g. $40/mo at 35) but rise sharply with age (potentially $400+/mo at 60). Level premiums start ~65% more expensive but stay flat for life. If you plan to hold the policy 10+ years, level premiums often cost less over the lifetime of the policy. Run the numbers carefully. Source: Partners Life, AIA.
Can I buy TPD or Trauma cover through KiwiSaver?
No — KiwiSaver is purely a retirement savings scheme. It doesn't include life, TPD, or trauma insurance. These must be bought as separate policies through life insurance providers (Partners Life, AIA, Asteron, Cigna, Fidelity). However, some KiwiSaver schemes offer 'bolt-on' insurance as an optional add-on (e.g. AMP Lifestages with optional Group Life cover) — premiums deducted from your KS contributions. Generally cheaper than retail policies but with less flexibility (fixed cover amounts, limited claim definitions). A 'salary sacrifice' strategy can route some of your pre-tax income to insurance via your employer's group scheme. Source: Financial Services Council NZ.
What conditions qualify as TPD vs Trauma in NZ?
TPD (Total Permanent Disability) pays a lump sum if you become totally and permanently unable to work in your usual or any reasonable occupation. Common qualifying conditions: severe stroke with paralysis, advanced multiple sclerosis, terminal cancer, severe brain injury, blindness. Definition matters: 'Own Occupation' TPD (most generous) vs 'Any Occupation' (cheaper, narrower). Trauma pays on diagnosis of a specified condition, even if you fully recover. Standard NZ Trauma policies cover 40+ conditions including: heart attack, stroke, cancer, major organ transplant, paralysis, blindness, deafness, coronary bypass, kidney failure, severe burns, motor neurone disease, Parkinson's, Alzheimer's, Huntington's, MS, ALS. Some policies extend to coverage for children's trauma at no extra cost. Source: Partners Life + AIA NZ product disclosure.

How this calculator works

This tpd & trauma insurance calculator uses the latest data from official New Zealand government sources to provide accurate results. All calculations are performed in your browser — your data never leaves your device.

All calculations are performed in your browser — your data never leaves your device. Results are for general guidance only and should not be considered professional financial advice.

Built and maintained by Konstantin Iakovlev. Data sourced from the IRD and official New Zealand government sources.

Last reviewed: