Knock Knock Coupons & Sales

First, go to the Knock Knock website or app. Add item(s) to your Knock Knock cart, then click on checkout. Look for the promo code, coupon code, or discount code field on the checkout page. Enter the Knock Knock promo code into that field, then hit the apply button and check your savings.

Example:

There are several potential cases where a promo code may not work at Knock Knock:

1. It might not be valid without reaching a minimum spend amount.
2. It might not be valid on specific items in your Knock Knock shopping cart.
3. It might only be valid for first-time Knock Knock customers.
4. It might be past its expiration date.*

If a Knock Knock promo code doesn’t work at checkout, try another one if more are listed. Alternatively, you can try these promo code hacks to see if one of them works. You can also try abandoning your cart (while logged in) to see if Knock Knock sends you an email with a coupon code as an incentive to complete your order.

*At Dealhack, we do the best we can only to show active promo codes, but there are some cases where codes can slip through the cracks.

If you forgot to apply your discount code at checkout, contact Knock Knock support and they might be able to process a credit or refund if the promo code is applicable to your order.

To submit a Knock Knock promo code, email [email protected] with “Knock Knock Promo Code” in the subject field. Be sure to include the code, a description of the offer, any exclusions, and the expiry date.

Yes, most Knock Knock promo codes have an expiry date, which is listed below the code when we can confirm it. If you happen to come across a code that doesn’t work at Knock Knock, please hit the thumbs-down button and we’ll get a notification to check it again.