About the Life Insurance Ladder Calculator
This life insurance ladder calculator compares two ways to buy term cover. Instead of one large policy that lasts as long as your longest need, a ladder stacks several smaller policies with different terms — for example $500,000 for 10, 20 and 30 years. Total cover starts high while children are young and the mortgage is large, then steps down as each policy expires and your need shrinks.
Enter the amount, term and yearly premium quote for up to three policies, plus a quote for a single policy equal to their combined amount. The calculator totals the premiums for both approaches, shows how much the ladder saves and charts coverage year by year against a need that declines from today’s figure to the amount you will still need at the end.
Premium quotes depend on your age, health and insurer, so use real quotes; the defaults are illustrative only. The need line assumes your cover requirement falls in a straight line, which roughly matches a mortgage being paid down and children becoming independent. Any year where the ladder falls below that line is flagged as a coverage gap.
With the default inputs, the premium savings from laddering is $15,800.00. Change any value above to recalculate instantly.
How to use the life insurance ladder calculator
- 1Enter how much cover you need today and how much you will still need at the end.
- 2Get quotes for up to three term policies with different lengths and enter amount, term and yearly premium for each.
- 3Get a quote for one policy equal to the combined amount and enter its term and premium.
- 4Compare total premiums and check the chart for any years where cover dips below your need.
- 5Adjust rung sizes or terms until the ladder tracks your need at the lowest cost.
Formula and method
Each policy in the ladder is paid for every year of its term, so its lifetime cost is the yearly premium times the term; the ladder total is the sum across policies. The comparison policy covers the combined amount of all rungs for one term, and its lifetime cost is its premium times that term. The difference is the premium you save by laddering, ignoring the time value of money.
In policy year y, ladder coverage is the sum of all policies whose term is at least y. The need line falls in a straight line from today’s need to the end need over T years, where T is the longest ladder term. Coverage is compared with the need at the start of each year; any year where coverage is lower counts as a gap, and the largest difference is the maximum shortfall.
- Premium_i
- Yearly premium of ladder policy i
- Term_i
- Term in years of ladder policy i
- Need₀
- Coverage needed today
- Need_end
- Coverage still needed when the longest policy ends
- T
- Longest ladder term in years
Worked examples
$1.5M need: three $500k rungs vs one $1.5M 30-year policy
The rungs cost $220 × 10 + $300 × 20 + $450 × 30 = $21,700 over their lives, against $1,250 × 30 = $37,500 for one $1.5M policy, saving $15,800. Cover steps from $1.5M to $1M after year 10 and $500k after year 20, exactly meeting a need that falls $50,000 a year.
Two-rung ladder with a gap
The ladder costs $2,000 + $6,400 = $8,400 versus $12,000 for one $1M 20-year policy. But the need only falls from $1M to $400,000 over 20 years ($30,000 a year), so after the 10-year rung expires, years 11–17 have less cover than needed — up to $200,000 short in year 11, when the need is still $700,000.
When a ladder costs more
With small $100,000 rungs, per-policy fees push the premiums up: $1,500 + $3,600 + $6,900 = $12,000, compared with $380 × 30 = $11,400 for one $300,000 policy. The ladder costs $600 more, so a single policy is the better buy here.
Frequently asked questions
What is a life insurance ladder?+
It is a strategy of buying several term life policies with different lengths instead of one large policy. Total cover is highest early on, when debts and dependants are greatest, and drops as each policy expires, so you stop paying for cover you no longer need.
Does laddering term life insurance save money?+
Often, because the shorter policies are cheaper per dollar of cover and stop charging premiums when they expire. Savings shrink if each policy is small, since every policy carries its own fee, so compare real quotes for both approaches.
How do I decide the size and length of each rung?+
Match rungs to specific needs: a policy that lasts until the mortgage is paid off, one until your youngest child finishes college, and one for long-term needs such as a spouse’s retirement. The chart shows whether the combined cover tracks your declining need.
What are the downsides of a life insurance ladder?+
You need to qualify medically for several policies, track several renewal dates and beneficiaries, and you may have too little cover if your needs do not decline as planned — for example, a later child or a larger home. Some policies can be converted to permanent cover, which adds flexibility.
Can I reduce one policy instead of laddering?+
Some insurers let you reduce the face amount of a term policy later, which lowers the premium. That can achieve a similar result with one policy, but the option and pricing vary by insurer, so check the policy terms before relying on it.
Results are estimates for educational purposes and are not financial advice. Rates, fees and terms vary — confirm with your lender or a licensed advisor before making decisions.