Knock Knock Promo Codes & Coupons

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 discount code into that field, then hit the apply button and check your savings.

Example:

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

1. It might not be valid without reaching a minimum dollar amount.
2. It might not be valid for 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 you’re logged in) to see if Knock Knock sends you an email with a coupon code as an incentive to complete your order.

There are also a few more tricks to troubleshoot promo codes that don’t work.

*At Dealhack, we do our best to share active Knock Knock coupon codes, but there are some cases where codes can slip through the cracks.

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

Dealhack acquires coupons and codes for the stores featured on our website through various methods. These consist of:

1. Establishing direct relationships with stores through affiliate partnerships, where we receive their offers either via email or through an API,
2. Subscribing to email newsletters,
3. Receiving deal suggestions from our users,
4. Monitoring social media.

Learn more about our editorial process.

To submit a Knock Knock discount code, email codes@dealhack.com with “Knock Knock Promo Code” in the subject field. Be sure to include the code, a description of the offer, any exclusions, and the expiration date.

It’s common to find Reddit users sharing promo codes on the platform. To search, head to Reddit, use the search bar at the top, and type in “Knock Knock + promo code”.

This method can also work on Facebook, Quora, and TikTok.

Pro tip: Join popular subreddits like r/coupons, r/deals, r/dealsreddit, and r/frugal to have discounts from these subreddits appear in your personal feed.

Yes, most Knock Knock discount codes have an expiration date, which is listed below the code when we can confirm it. If you encounter a code that doesn’t work at Knock Knock, please hit the thumbs-down button, and our team will receive a notification to test it again and update this page if necessary.