Finance & Property · How to use
Savings Insurance IRR Calculator
Follow the steps to enter your numbers and check the limits.
Updated 2026-10-25 · ThinkVault Tools
Get started in three steps
- 1
Step 1
Prepare your amounts, terms and applicable rates or prices.
- 2
Step 2
Open the tool, check the units and compare scenarios.
- 3
Step 3
Read the results and notes. Check official documents and sources before deciding.
Method and common questions
Why look at IRR for savings insurance?
A simple total return divides the gain by total premiums and ignores when the money was paid. The internal rate of return (IRR) accounts for the timing of every premium and the final payout, so it is better for comparing different premium and maturity terms.
Guaranteed vs non-guaranteed
The guaranteed maturity value must come from the insurer’s official benefit illustration. The tool never derives guaranteed figures from an assumed rate and never treats non-guaranteed bonuses as certain.
The scenario return only builds a mathematical illustration of how premium, term and return interact. It is not a quote, a sales recommendation or a bonus forecast.
What you need before calculating
- The actual monthly or annual premium.
- The premium term and how long you expect to hold the policy.
- The guaranteed cash value or maturity value for the chosen policy year.
- For non-guaranteed scenarios, the total cash value and whether bonuses can be withdrawn.
Example: $2,000 a month
Paying for 10 years gives total premiums of $240,000. After you enter the guaranteed value for year 10, the tool treats each premium as a negative cash flow and the payout as a positive one, solves the monthly IRR and annualises it.
What IRR still leaves out
- Partial withdrawals, policy loans, premium holidays and bonus withdrawals.
- Currency risk.
- Surrender charges, death-benefit value and other protection costs.
- Differences in actual payment dates; use XIRR for complex cash flows.
FAQ
- Can I treat the non-guaranteed value as an expected return?
- Do not treat it as guaranteed. It is usually based on the insurer’s current assumptions, and actual payouts can be higher or lower.
- Can I compare policies on maturity value alone?
- If premiums, premium terms or holding periods differ, the maturity value alone is misleading. Compare IRR, guaranteed share, liquidity and protection too.
Method
Both IRRs assume premiums at the start of each month and one maturity payout, with effective annualization: (1 + monthly IRR)^12 − 1. The scenario input is also an effective annual return converted to a monthly rate. Guaranteed values still come only from your policy input.
Last checked: 2026-08-21
Before you begin
Tax, lending, holiday and protection rules vary by place and date. Check current local rules and provider terms. Results are estimates.