Life Insurance Laddering Calculator — Rex's Toolbox

Rex says

Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.

Try a scenario

Click to load — tweak from there.

Inputs

Remaining mortgage balance($)

Years left on mortgage

Coverage needed until kids are independent($)

Years until kids are independent

Long-term income replacement coverage($)

Years of long-term coverage

Base rate per $1,000 coverage (10-yr term equivalent)($)

Result

Estimated annual ladder premium

$1,269

Flat single-term policy premium (comparison)

$1,630

Estimated annual savings from laddering

$361

Total coverage across all layers

$780,000

Psst — share this and help Rex grow

One click, a permanent link with your numbers baked in.

More financial

How to use this

1Enter remaining mortgage balance ($).
2Enter years left on mortgage.
3Enter coverage needed until kids are independent ($).
4Enter years until kids are independent.
5Enter long-term income replacement coverage ($).
6Enter years of long-term coverage.
7Enter base rate per $1,000 coverage (10-yr term equivalent) ($).
8Read your estimated annual ladder premium on the right — it updates as you type.
9Hit Share to keep the scenario or send it to someone.

About this calculator

Laddering means buying multiple term life policies with different lengths instead of one big policy, so coverage steps down as big obligations — a mortgage, a kid's college years, a business loan — get paid off, which usually cuts total premium versus keeping the full amount in force for the full term. This calculator takes your total coverage need, splits it into three layers matched to different payoff horizons (mortgage, kids reaching independence, and long-term income replacement), and estimates the ladder's total premium against a flat single-term policy for the same total coverage and longest term, so you can see the typical savings from structuring it this way.

FormulaLayer coverage = obligation amount for each horizon; ladder premium ≈ sum of each layer's coverage × term-specific rate per $1,000; flat premium = total coverage × longest-term rate per $1,000.

Worked example

Using the values the calculator loads with:

Inputs

Remaining mortgage balance: 280000 $
Years left on mortgage: 20
Coverage needed until kids are independent: 300000 $
Years until kids are independent: 15
Long-term income replacement coverage: 200000 $
Years of long-term coverage: 30
Base rate per $1,000 coverage (10-yr term equivalent): 1.1 $

Results

Estimated annual ladder premium: $1,269
Flat single-term policy premium (comparison): $1,630
Estimated annual savings from laddering: $361
Total coverage across all layers: $780,000

What each field means

Inputs

Remaining mortgage balance ($): The remaining mortgage balance used in the calculation, measured in $. Starts at 280000 $ so you have a working example on load.
Years left on mortgage: The years left on mortgage used in the calculation. Starts at 20 so you have a working example on load. Accepted range: 1–30.
Coverage needed until kids are independent ($): The coverage needed until kids are independent used in the calculation, measured in $. Starts at 300000 $ so you have a working example on load.
Years until kids are independent: The years until kids are independent used in the calculation. Starts at 15 so you have a working example on load. Accepted range: 1–25.
Long-term income replacement coverage ($): The long-term income replacement coverage used in the calculation, measured in $. Starts at 200000 $ so you have a working example on load.
Years of long-term coverage: The years of long-term coverage used in the calculation. Starts at 30 so you have a working example on load. Accepted range: 1–30.
Base rate per $1,000 coverage (10-yr term equivalent) ($): The base rate per $1,000 coverage (10-yr term equivalent) used in the calculation, measured in $. Starts at 1.1 $ so you have a working example on load.

Results

Estimated annual ladder premium: Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
Flat single-term policy premium (comparison): Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
Estimated annual savings from laddering: Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
Total coverage across all layers: Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.

FAQ

Why does laddering save money compared to one big policy?

You stop paying premium on the mortgage-sized layer once the mortgage term ends, instead of carrying that full amount at the longest term's rate for the entire time. Since term life premium rates increase with both coverage amount and term length, shrinking your total in-force coverage as obligations disappear reduces your average annual outlay significantly over the full planning horizon.

What obligations typically define each ladder layer?

A common three-layer structure is: mortgage payoff (matches your remaining loan term), dependent care (matches years until your youngest child is financially independent, often 18-22 years old), and long-term income replacement or final expenses (a smaller amount carried the longest, sometimes converted to permanent coverage later). Adjust the layers to match your actual debts and timeline rather than forcing this exact structure.

Do I need three separate policies, or can one insurer do this in one contract?

Most people buy three separate term policies, sometimes from different insurers to get the best rate at each term length, since a 15-year term and a 30-year term from the same carrier don't always both be competitively priced. Some carriers do offer 'laddered' or multi-term products, but shopping each layer separately usually gets a better blended rate.

What happens to underwriting each time I buy a new layer?

Each policy is underwritten independently, meaning you'll go through health questions or a medical exam again for each layer bought at a different time, and your rate locks in based on your age and health at that purchase date. Buying all layers around the same time while young and healthy avoids re-underwriting risk later if your health changes.

Accuracy and limitations

Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.

Related tools

Umbrella Insurance Sizing Calculator

Figure out how much personal umbrella liability coverage you actually need.

Disability Insurance Benefit Gap Calculator

See how much monthly income you'd lose if you became disabled tomorrow.

Cite this calculator

Writing about this topic? Grab a citation — every link helps keep these tools free.

APA

RevenueLab. (2026). Life Insurance Ladder Sizing Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/life-insurance-ladder-sizing

HTML

<p>Source: <a href="https://www.revenuelab.fyi/toolbox/life-insurance-ladder-sizing" target="_blank" rel="noopener">Life Insurance Ladder Sizing Calculator — RevenueLab</a> (2026).</p>

Markdown

Source: [Life Insurance Ladder Sizing Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/life-insurance-ladder-sizing) (2026).