Top Up Policy Value Calculator

Work out top up policy value instantly with clear inputs, formula shown and shareable results.

About Top Up Policy Value Calculator

A top-up policy pays only the portion of a claim above its deductible, so it pairs naturally with a base policy sized to that same threshold. The combination buys a far larger total sum insured than a single policy for a similar premium, because the insurer avoids all the small claims.

Formulas

Base policy payment

Base pays = min(Claim, Base sum insured)

Top-up payment

Top-up pays = min(max(0, Claim - Deductible), Top-up sum insured)

Worked example

With the default values below, Top Up Policy Value Calculator returns Total covered by both policies of $1,400,000.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Base policy sum insured: 500,000
Top-up deductible threshold: 500,000
Top-up sum insured: 2,000,000
Claim amount to test: 1,400,000

Results

Total covered by both policies: $1,400,000.00
Paid by the base policy: $500,000.00
Paid by the top-up policy: $900,000.00
Remaining out of pocket: $0.00

Step by step

1Values used
2Base policy payment
3Top-up payment
4Total covered by both policies= 1,400,000.00
5Paid by the base policy= 500,000.00
6Paid by the top-up policy= 900,000.00
7Remaining out of pocket= 0.00

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, fees or charges or compounding frequency 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

Should the deductible match the base cover?

Yes, ideally exactly. A gap between base cover and top-up deductible becomes a band you fund yourself.

Super top-up or ordinary top-up?

A super top-up applies the deductible to cumulative claims in the year, not per claim, and is materially better value for anyone with recurring treatment.