Life insurance when one income carries the family
One paycheck pays every bill. If it stops, every bill is due at once. The gap runs bigger, and simpler.
Written by William Litner, FCAS. Last updated November 3, 2026. Numbers: this site's DIME math, worked on a made-up family, in the open below.
- When one paycheck carries the family, the gap is the whole household budget for the years the kids still need it, with no second income to fall back on.
- Work coverage is commonly one year of pay and ends with the job, against a gap built from many years of pay.
- One made-up family: four lines add to $1,390,000, minus $35,000 saved and $84,000 of work coverage, leaving a $1,271,000 gap.
Sam's gap: what his family would still need. Sam is made up. He earns $84,000 a year and one paycheck carries the house. His four lines add to $1,390,000, minus $35,000 saved and $84,000 of work coverage. The full math is below.
What one paycheck really carries
In a two-paycheck home, one income can pause and the other still lands. Here, there is no second landing.
Every bill has one source
Rent or mortgage, food, cars, care. One line of pay feeds all of them. The gap is the whole household budget.
The years run long
The count is the years the kids still need support. Young kids mean many years, at full size.
Savings drain faster
With no second income, savings carry the whole house. They empty at household speed, not half speed.
The other parent works too
The parent at home holds the kids and the house. That job would need hiring. It has its own page: the unpaid job counts.
Worked once, for a one-paycheck family
Sam earns $84,000. Lee is home with their kids, ages 5 and 8.
Their four lines
Debts: $12,000. Income: $84,000 times 12 years is $1,008,000. Mortgage: $310,000. School: $60,000. The lines add to $1,390,000.
Their gap
Minus $35,000 saved and $84,000 of work coverage, the gap is $1,271,000. The work amount is one year of pay against twelve years of need.
The gap has a name
Plain questions, plain answers
Common questions
How much coverage does a single-income family need?
The whole household budget runs on one paycheck, so the gap is the full budget for the years the kids still need it. One family: four lines adding to $1,390,000, minus savings and work coverage, leaves a $1,271,000 gap.
Is work coverage enough for a single-income family?
Work coverage is commonly one year of pay. It ends when the job ends. Against a gap built from many years of pay, it covers only a small share.
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