Balance transfer credit cards offering 0% promotional APR provide a powerful tool to pause compound interest and allocate 100% of monthly payments to principal reduction.
1. Balance Transfer Mathematics
📐 Transfer Fee vs. Interest Savings Formula
Net Savings = (Original Balance × Annual APR × Transfer Duration in Years) - (Original Balance × Transfer Fee %)
| Transferred Balance | 3% Transfer Fee | 18-Month Interest Saved @ 24% APR | Net Consumer Savings |
|---|---|---|---|
| $5,000 | $150 | $1,800 | +$1,650 Net Profit |
| $10,000 | $300 | $3,600 | +$3,300 Net Profit |
| $20,000 | $600 | $7,200 | +$6,600 Net Profit |