# Knock Knock Cashback — Compare Rates Across 2 Cashback Portals

> GotCashback.com tracks Knock Knock cashback rates across 2 cashback portals, updated 2026-08-10T20:30:48Z. Current best rate: **5%** via **BeFrugal**. This page is the agent-readable version of https://www.gotcashback.com/Stores/Knock-Knock/.

- Canonical HTML page: https://www.gotcashback.com/Stores/Knock-Knock/
- Store website: https://knockknockstuff.com
- Data freshness: rates last checked 2026-08-10T20:30:48Z; rates change frequently — treat values older than 24 hours as stale and re-fetch.
- All rates apply to online purchases initiated through the portal's tracking link unless noted otherwise.

Discover Knock Knock cashback offers up to 5% from 2 trusted cashback websites.

## Best Current Rate

| Field | Value |
|---|---|
| Best rate | 5% |
| Portal | [BeFrugal](https://www.gotcashback.com/Portals/befrugal/) |
| Rate type | flat |
| Cashback link | https://www.gotcashback.com/Click/befrugal/Knock-Knock/ |

## All Portal Rates

Sorted by cashback rate, highest first. Use the "Cashback link" URL to activate rate comparison and tracking.

| Portal | Cashback rate | End date | Conditions | Cashback link |
|---|---|---|---|---|
| [BeFrugal](https://www.gotcashback.com/Portals/befrugal/) | 5% | — | — | https://www.gotcashback.com/Click/befrugal/Knock-Knock/ |
| [GoCashBack](https://www.gotcashback.com/Portals/gocashback/) | Up to 4% (up to) | — | — | https://www.gotcashback.com/Click/gocashback/Knock-Knock/ |

## Rate History

Chart-ready JSON with historical best rates per portal:

- Last 12 months: https://www.gotcashback.com/Stores/Knock-Knock/History/Json/year/
- Last 30 days: https://www.gotcashback.com/Stores/Knock-Knock/History/Json/month/

## Terms & Exclusions

Common conditions for cashback (verify per portal before purchase):

- Cashback typically applies to orders initiated through the portal's tracking link; in-store offers, where available, are listed separately above.
- Gift card purchases usually do not earn cashback.
- Cashback is voided if another browser extension or coupon code claims the affiliate attribution.
- Tracking requires clicking through the portal link with ad/tracker blocking disabled.
- Portal-specific conditions are listed in the "Conditions" column above.

## How It Works

1. Compare rates in the tables above and pick a portal.
2. Follow the cashback link, sign in (or register) at the portal, and click through to Knock Knock from the portal.
3. Complete your purchase in the same session without visiting other coupon sites.
4. Cashback tracks in your portal account and becomes withdrawable after the portal's payout waiting period.

## FAQ

**How does earning cashback using cashback portals work?**
Cashback portals partner with retailers to offer users a percentage of their purchase back as cashback when they shop through the portal.

**Is it free to use cashback portals like SimplyBestCoupons.com?**
Yes, using cashback portals is free for users. There are no fees to sign up or earn cashback.

**How do I earn cashback on my purchases?**
To earn cashback, simply visit the cashback portal, find the retailer you want to shop with, click the link provided, and complete your purchase on the retailer's website.

**How long does it take to receive cashback after making a purchase?**
The time it takes to receive cashback varies by retailer and can range from a few days to several weeks.

**Are all purchases eligible for cashback through cashback portals?**
Not all purchases may be eligible for cashback. It is important to check the terms and conditions of each retailer before making a purchase.

**Can I earn cashback on top of other discounts, coupons, or promotions?**
In most cases, you can earn cashback on top of other discounts, coupons, or promotions. However, it is advisable to check the specific terms of each offer.

**What happens if my cashback doesn't track or is not credited?**
If your cashback doesn't track or is not credited, you can usually submit a claim or contact customer support for assistance.

**Is there a limit to how much cashback I can earn?**
The amount of cashback you can earn may be subject to individual retailer limits. It is important to check the terms and conditions for each retailer.

**Are there any requirements to earn cashback?**
Some cashback portals may have specific requirements such as minimum purchase amount or unique terms for earning cashback. It is advisable to review the guidelines.

**Can I earn cashback on purchases made with gift cards or store credit?**
Earning cashback on purchases made with gift cards or store credit may vary by retailer. It is recommended to check the terms and conditions.

**Do I need to provide personal information to earn cashback?**
To earn cashback, you generally need to provide basic personal information for account creation and payment processing purposes.

**How secure are cashback portals in terms of protecting user information?**
Cashback portals prioritize user privacy and employ security measures such as encryption to protect personal and financial information.

**Can I use multiple cashback portals for the same purchase?**
In most cases, you cannot use multiple cashback portals for the same purchase. It is recommended to choose one portal to shop through for each transaction.

**What payment methods are available for receiving cashback?**
Payment methods for receiving cashback may include PayPal, bank transfer, gift cards, or other options depending on the cashback portal.

**Do cashback portals have a mobile app for earning cashback on the go?**
Many cashback portals offer mobile apps that allow users to earn cashback on their purchases while shopping on the go.

**Can I earn cashback on all types of purchases, including travel bookings and electronics?**
Cashback portals cover a wide range of categories including travel bookings, electronics, fashion, home goods, and more, offering cashback on various types of purchases.

**Are there any fees associated with cashback portals?**
Using cashback portals is typically free for users, with no fees for signing up, earning cashback, or accessing the portal's services.

**Is there a referral program for inviting friends to join cashback portals?**
Many cashback portals offer referral programs where users can earn bonuses or rewards for inviting friends to join and shop through the portal.

**Do cashback portals offer customer support in case of any issues or questions?**
Cashback portals often provide customer support services to assist users with any issues, questions, or concerns related to earning cashback.

**What should I do if my cashback is lower than expected or missing?**
If your cashback is lower than expected or missing, you can reach out to customer support for assistance in resolving the issue.

## Related

- All stores index (HTML): https://www.gotcashback.com/Stores/
- Site index for agents: https://www.gotcashback.com/llms.txt

---
*Machine-readable metadata*

```json
{
  "type": "CashbackStoreOffer",
  "store": "Knock Knock",
  "storeUrl": "https://knockknockstuff.com",
  "canonical": "https://www.gotcashback.com/Stores/Knock-Knock/",
  "lastUpdated": "2026-08-10T20:30:48Z",
  "bestRate": {
    "advertised": "5%",
    "effectivePercent": 5,
    "tiered": false,
    "portal": "BeFrugal",
    "portalUrl": "https://www.gotcashback.com/Portals/befrugal/",
    "clickUrl": "https://www.gotcashback.com/Click/befrugal/Knock-Knock/"
  },
  "portalCount": 2,
  "portals": [
    {
      "name": "BeFrugal",
      "rate": "5%",
      "effectivePercent": 5,
      "tiered": false,
      "locationType": "Online",
      "offerType": "Cashback Portals",
      "url": "https://www.gotcashback.com/Click/befrugal/Knock-Knock/"
    },
    {
      "name": "GoCashBack",
      "rate": "Up to 4%",
      "effectivePercent": 4,
      "tiered": true,
      "locationType": "Online",
      "offerType": "Cashback Portals",
      "url": "https://www.gotcashback.com/Click/gocashback/Knock-Knock/"
    }
  ]
}
```