Smart loan repayment strategies
Avalanche, snowball, biweekly, refinance — when each approach actually saves the most money.
5 min readReviewed May 1, 2026
Quick answer
Pay highest-rate debt first if you want to save the most money. Pay smallest-balance first if you want momentum. Either way, every extra dollar goes straight to principal.
Strategies that work
- Avalanche — extra payments to the highest-APR loan; mathematically optimal.
- Snowball — extra payments to the smallest balance; psychologically optimal.
- Biweekly payments — half the monthly payment every 2 weeks adds one extra payment per year.
- Refinance — only a win when the new APR (after fees) is meaningfully lower.
- Lump-sum windfalls — apply directly to principal, not the next month's payment.