Free tool · Updated July 2026

Minimum payment trap calculator

Tribal lines of credit like Mobiloans let you pay a small "minimum" each cycle — and that is exactly how a $1,000 balance turns into $3,000 repaid. This shows how long minimum-only really takes, and what a fixed payment would save. It runs in your browser.

Your line of credit
Current balance
$
APR (%)
%
Minimum payment (% of balance each cycle)
%

Or pay this fixed amount monthly
$
Minimum only months to clear
You'd repay$0
Interest$0
Fixed payment months to clear
You'd repay$0
Interest$0

Why minimum payments are a trap

On a revolving tribal line of credit, the minimum is a small percentage of the balance — so as the balance drops, the minimum drops too, stretching the payoff over years while interest keeps compounding. A fixed payment stays constant, so more of every dollar hits principal and the balance falls faster. We model the minimum as a percentage of the balance each cycle (with a small floor) at your APR. If even a fixed payment can't cover the monthly interest, the calculator flags it — at that point the balance never falls, and you should look at consolidation or whether the loan is even legal where you live.