Cash Back vs. Discount Comparison

Why Discounts Are Almost Always Better Than Cash Back

At the same percentage, a discount beats cashback in most scenarios. Why? Because you pay sales tax on the pre-discount price with cashback, but on the reduced price with a discount.

On a $200 item at 10% and 8% tax: the discount saves you an additional $1.60 in tax vs. cashback. On big purchases (furniture, electronics), this adds up.

When Cash Back Wins

The Credit Card Cash Back Trap

Credit cards offering "5% cash back" sound great, but: you need to pay the balance in full. At 24% APR, carrying a balance for even one month wipes out months of cash back rewards. A $200 purchase earning $10 cash back but accruing $4/month in interest becomes a net loss by month 3.

The psychology: Cash back encourages spending. Studies show cash-back cardholders spend 12-18% more than non-reward cardholders. That "5% back" may cost you 12% in extra spending.