# Carbon38 Cashback — Compare Rates Across 8 Cashback Portals

> GotCashback.com tracks Carbon38 cashback rates across 8 cashback portals, updated 2026-07-31T02:31:48Z. Current best rate: **10.10%** via **TopCashback.com**. This page is the agent-readable version of https://www.gotcashback.com/Stores/Carbon38/.

- Canonical HTML page: https://www.gotcashback.com/Stores/Carbon38/
- Store website: https://carbon38.com
- Data freshness: rates last checked 2026-07-31T02:31:48Z; 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 Carbon38 cashback offering of up to up to 10.10% from 8 trusted cashback websites.

## Best Current Rate

| Field | Value |
|---|---|
| Best rate | 10.10% |
| Portal | [TopCashback.com](https://www.gotcashback.com/Portals/TopCashback/) |
| Rate type | flat |
| Cashback link | https://www.gotcashback.com/Click/TopCashback/Carbon38/ |

## 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 |
|---|---|---|---|---|
| [TopCashback.com](https://www.gotcashback.com/Portals/TopCashback/) | 10.10% | — | — | https://www.gotcashback.com/Click/TopCashback/Carbon38/ |
| [Rakuten](https://www.gotcashback.com/Portals/rakuten/) | 6% | — | — | https://www.gotcashback.com/Click/rakuten/Carbon38/ |
| [Active Junky](https://www.gotcashback.com/Portals/active-junky/) | 4.00 % | — | — | https://www.gotcashback.com/Click/active-junky/Carbon38/ |
| [Yazing](https://www.gotcashback.com/Portals/yazing/) | 3.60 % | — | — | https://www.gotcashback.com/Click/yazing/Carbon38/ |
| [SimplyBestCoupons.com](https://www.gotcashback.com/Portals/SimplyBestCoupons/) | 3.00% | — | — | https://www.gotcashback.com/Click/SimplyBestCoupons/Carbon38/ |
| [Mr. Rebates](https://www.gotcashback.com/Portals/MrRebates/) | 2% | — | — | https://www.gotcashback.com/Click/MrRebates/Carbon38/ |
| [Price.com](https://www.gotcashback.com/Portals/price-com/) | 0.50 % | — | — | https://www.gotcashback.com/Click/price-com/Carbon38/ |
| [Citi Shop](https://www.gotcashback.com/Portals/citishop/) | Up to 6.5% (up to) | — | — | https://www.gotcashback.com/Click/citishop/Carbon38/ |

## Rate History

Chart-ready JSON with historical best rates per portal:

- Last 12 months: https://www.gotcashback.com/Stores/Carbon38/History/Json/year/
- Last 30 days: https://www.gotcashback.com/Stores/Carbon38/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 Carbon38 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 Carbon38 cashback through cashback portals work?**
Cashback portals partner with retailers like Carbon38 to offer users cashback rewards for making purchases through their platform.

**Do I need to create an account on the cashback portal to earn Carbon38 cashback?**
Yes, you typically need to sign up for an account on the cashback portal in order to earn cashback rewards when shopping at Carbon38.

**How long does it take for cashback from Carbon38 purchases to be credited to my account through the cashback portal?**
The time it takes for cashback to be credited varies by portal, but it is usually within a few days to a few weeks after the purchase.

**Are there any fees associated with earning Carbon38 cashback through a cashback portal?**
Most cashback portals do not charge users fees for earning cashback on their purchases.

**Can I earn additional cashback rewards by referring friends to the cashback portal for Carbon38 purchases?**
Some cashback portals offer referral bonuses for users who refer friends, resulting in additional cashback rewards.

**Is there a limit to how much cashback I can earn on Carbon38 purchases through a cashback portal?**
Cashback limits vary by portal and may be based on factors like purchase amount or specific terms and conditions.

**Do I need to click through the cashback portal's link every time I shop at Carbon38 to earn cashback rewards?**
Yes, in order for your purchases to be tracked and for you to earn cashback, you typically need to click through the cashback portal's link before making a purchase.

**What happens if my cashback from Carbon38 purchases doesn't show up in my account on the cashback portal?**
If your cashback is not credited to your account within the expected timeframe, you can usually reach out to the cashback portal's customer service for assistance.

**Are there any restrictions on the types of products or purchases that are eligible for cashback on Carbon38 through a cashback portal?**
Some cashback portals may have exclusions or restrictions on certain products or categories that are eligible for cashback rewards.

**Can I combine cashback rewards earned from Carbon38 with other discounts or promotions?**
The ability to combine cashback rewards with other discounts or promotions may vary and is typically subject to the terms and conditions of the cashback portal and retailer.

**What should I do if I forgot to click through the cashback portal when making a purchase on Carbon38?**
If you forgot to click through the cashback portal, you may not be able to earn cashback on that particular purchase. It is recommended to always start your shopping journey through the portal to ensure cashback tracking.

**Is it safe to provide my personal and payment information to cashback portals for earning rewards on Carbon38 purchases?**
Reputable cashback portals prioritize security and use encryption to protect users' personal and payment information. It is important to ensure you are using a trusted portal before providing any sensitive data.

**Can I earn cashback on Carbon38 purchases made with gift cards through a cashback portal?**
The ability to earn cashback on purchases made with gift cards may vary by the cashback portal and retailer. It is recommended to review the terms and conditions for specific details.

**Do I need to manually activate cashback offers for Carbon38 on the cashback portal?**
Some cashback portals require users to activate offers before making a purchase to ensure cashback tracking. Check the portal's details to see if activation is necessary.

**Can I access my cashback earnings from Carbon38 through the cashback portal on mobile devices?**
Most cashback portals offer mobile apps or mobile-friendly websites for users to conveniently access their account, track earnings, and make purchases on the go.

**Are there any minimum purchase requirements to earn cashback on Carbon38 through a cashback portal?**
Minimum purchase requirements, if any, are usually specified by the cashback portal and may vary depending on current promotions or offers.

**What happens if I return a product purchased from Carbon38 that earned me cashback through the cashback portal?**
If you return a product that earned you cashback, the cashback amount may be adjusted or reversed depending on the retailer's return policy and the cashback portal's terms.

**Can I earn cashback on Carbon38 purchases through multiple cashback portals simultaneously?**
Cashback eligibility may vary if attempting to earn rewards through multiple portals simultaneously. It is recommended to review the terms of each portal to understand any limitations.

**Will I still earn cashback on Carbon38 purchases if I use discount codes or coupons at checkout?**
Using discount codes or coupons at checkout may impact your cashback earnings, as some portals do not credit cashback on purchases that use external discounts. Review the terms and conditions for more information.

**How can I maximize my cashback earnings on Carbon38 through cashback portals?**
To maximize cashback earnings, consider combining promotions, using cashback credit cards, and staying informed about special deals or offers from both the cashback portal and the retailer.

## Related

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

```json
{
  "type": "CashbackStoreOffer",
  "store": "Carbon38",
  "storeUrl": "https://carbon38.com",
  "canonical": "https://www.gotcashback.com/Stores/Carbon38/",
  "lastUpdated": "2026-07-31T02:31:48Z",
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      "url": "https://www.gotcashback.com/Click/citishop/Carbon38/"
    }
  ]
}
```