The minimum-payment trap
Card issuers set minimums low (often 1–3% of the balance or a fixed floor). That protects their interest income: most of your payment goes to interest early on, and principal shrinks slowly. A $5,000 balance at 22% APR with a $100 minimum can take a decade-plus and cost more in interest than the original balance.
What “extra” actually does
Every dollar above the minimum goes straight to principal (after that month’s interest accrues). Lower principal next month means less interest the month after—compounding in your favor. The same $5,000 debt with $100 minimum + $100 extra can finish in a few years instead of more than ten.
- $50 extra / month — often shaves years on mid-size consumer debt.
- $100–$200 extra — the “sweet spot” for many household budgets without extreme sacrifice.
- One-time snowflakes (tax refund, bonus, side hustle) — applied in a specific month on the current target debt, they can knock multiple months off the plan.
Snowball or avalanche still needs extra
Strategy (lowest balance first vs highest APR first) only decides where the extra goes. Without extra, both methods crawl. Use a side-by-side calculator so you can see months and interest for your real balances, then drag an extra-payment slider until the debt-free date feels achievable.
Practical ways to find the extra
- Redirect one recurring subscription or dining-out category for 6–12 months.
- Round every payment up to the next $25 or $50.
- Automate the extra on payday so it never sits in checking.
- When one debt dies, keep the same total payment (don’t shrink lifestyle)—that “found” minimum becomes pure principal on the next debt.
Try your numbers
Enter your debts, set a realistic extra, and compare snowball vs avalanche. Add snowflake months if you expect a bonus. Everything stays in your browser—nothing is uploaded.