Price dropped after you bought it? Get the difference back.

Target, Best Buy, Costco and Home Depot refund the difference when their own price drops soon after you buy. The catch is that you have to notice and ask in time. PriceLock watches for you.

No store passwords or card numbers. Free.

How it works

You shop the way you already do. PriceLock keeps an eye on the price until the store's refund window closes.

You're owed $50Claim by Oct 16Oct 1: you pay $329.99Oct 9: price drops to $279.99We check the price several times a dayExampleOct 1: you pay $329.99Owed $50by Oct 16Oct 9: drops to $279.99We check the price several times a day.Example
  1. 1

    You buy

    At Best Buy, Target, Costco or Home Depot, online or in store.

  2. 2

    You tell PriceLock

    Paste the product link, or forward the order email the store sent you.

  3. 3

    We watch the price

    Several times a day, for as long as the store will refund a drop.

  4. 4

    You get the difference

    When it drops, you get the amount, the deadline and the message to send.

When a price drops, you get this

One message with everything the store will ask for. You send it in their chat or at the service desk, and the difference goes back to your card.

  • How much you're owed and the last day to ask.
  • The message to send, with your order number, the price you paid and today's price.
  • A button to the store's chat or order page, or what to bring to the desk.
  • Whether to claim now or wait, based on the store's rules.

Stores that refund the difference

Each store refunds its own price drops for a set number of days after you buy.

Target

14 days

Target's own price. It must still be live when you ask.

Target's rules

Best Buy

15 days

Longer for paid members. One adjustment per item.

Best Buy's rules

Costco

30 days

Online orders against costco.com; warehouse buys at the warehouse.

Costco's rules

Home Depot

30 days

Regular-priced items.

Home Depot's rules

Holiday windows run longer. Last season Best Buy covered purchases from October 31 to December 31, with claims until January 15. Target covered its own price drops from November 1 to December 24. We'll post this year's terms as soon as the stores announce them.

Windows as each store describes them, September 2026. Rules and exclusions change, so check the store's page before you rely on them. Compare every window.

Two ways to start

Both are open. Neither needs a password.

Paste a product link

From the store's app or website. Add what you paid and when, and you're done.

Track a purchase

Forward your order email

Forward any Best Buy or Target order email to lock@pricelock.ai. That's it.

What we'll email you

Questions

Do stores really give the money back?

Yes, when their own price drops and you ask inside their window. Each store publishes the policy, with its own rules and exclusions. We link to every one.

What does it cost?

Nothing this holiday season.

Do you need my store login or card?

No. You paste a product link or forward the order email. We never ask for a store password or a card number, and we never contact a store for you.

Which stores are covered?

At launch, automatic price alerts for Best Buy, plus refund dates and claim help for Target, Costco and Home Depot. More stores follow.

What if the store says no?

Tell us why with one tap. We use it to fix the instructions for that store, so the next person's claim goes through.

Shopping early this year?

Buy when it suits you. If the price drops afterwards, we'll tell you what you're owed.

Track a purchase