What does the unchecked copay cost from age 30 to 65?
The Unchecked Copay
$40, three times a year, age 30 to 65 — the long-term cost is $18,000.
How the number's built.
The billing overcharge stays small enough to feel logistical. At $40 three times a year, the annual spend is $120. Over 35 years, it becomes $18,000 through annuity-due compounding.
Half the pattern stays.
$8,900 stays compounding.
No rush. It keeps until you want it.
cutting the pattern in half
$60 annual spend avoided
compounding (annuity due, 7% annual return)
total recovered = $8,900
$40 three times a year
$120 annual spend
$4,200 cash contributed over 35 years
+ $13,800 compound growth (annuity due, 7% return)
total cost = $18,000
Assumptions
- The behavior costs $40 three times a year.
- The amount stays constant in real terms.
- Annual savings are invested at the start of each year at 7%.
- Timeline spans 35 years from age 30 to 65.
The lifetime cost of unchecked copay
Last reviewed: May 2026.
An estimate built for reflection — not financial, medical, or legal advice. The figures follow the assumptions above.