
Store promos can make sense when you get a real discount and interest-free financing and you can pay it off before the deadline. On a $1,200 fridge, 10 percent off saves $120, which beats most rewards cards. The big gotcha is the wording: "0% APR for 12 months" is different from "no interest if paid in full in 12 months" which is deferred interest. With deferred interest, leave even $1 at month 13 and they add back all interest from day one at a sky-high rate, often around 29.99 percent. Verify the phrase on the application screen and ask the APR printed for purchases and for deferred interest.
Read when the promo clock starts because some stores start it at order date rather than delivery, which matters if your town has slow shipping. Plan the payoff on paper: take the financed amount after the discount, divide by the promo months, add a small buffer, and set automatic payments for that amount to post a week before the due date. Do not put any other purchases on that card since they can accrue interest differently and confuse the payoff. Check for an annual fee, late fees, and whether the discount stacks with sale prices and price matching after purchase. If you care about your credit score in the near term, expect a hard pull and a low limit that can spike utilization, so either pay most of it before the first statement or skip the card if a mortgage or car loan is coming soon. If you and your roommate are splitting, have their share flow to you and keep a single autopay so no one forgets and triggers the retroactive interest.