Kosterina: Shopping portal cashback & miles rates
kosterina.com
Checked 3h ago · 9 portals compared
Every portal below pays you for starting your Kosterina purchase there: they split the commission they get from Kosterina with you. Same store, same checkout, same order, but cashback or miles on top. New here? How portals work
Best Kosterina rate right now
Best points
Verdict:
2 rate changes in the 46 days we've tracked it. Last moved Jul 20, 2026. FatCoupon has held the top cashback rate longest: 38 of 46 days.
True on most portals for Kosterina:
Cashback
Show all 8 cashback portals Show fewer
What doesn't earn
Posting Time: Purchases will typically show in your wallet as pending in 7 days. Approval Time: Cash Back will be added to your wallet in approximately 90 days. Activate Cash Back
Category rates & exclusions
- Online Purchase · most items 3%
Exclusions: - Use of a coupon code not displayed on TopCashback. Terms: - Cash Back is calculated only on the item(s) price and does not include taxes, shipping or other fees. - We are unable to accept Missing Cash Back Claims for this brand. - Cash Back earned cannot exceed the total purchase amount. - To be eligible for Cash Back on all products, you must begin your purchase with an empty shopping cart.
Details last checked 3d ago.
Show all 8 cashback portals
What doesn't earn
Rate shown applies to purchases made by new customers of kosterina.com. 4% applies to returning customers. Gift cards are excluded from cash back.
What doesn't earn
Use of coupon/promotional codes not listed on Rakuten may void Cash Back. Cash Back is not available on gift cards. For Subscribe & Save orders, Cash Back is only available on the first payment of the subscription.
What doesn't earn
Not applicable on the purchase of gift cards. Use of promotional codes not provided by Capital One may invalidate your offer.
Points
What doesn't earn
Use of coupon/promotional codes not listed on Rakuten may void Cash Back. Cash Back is not available on gift cards. For Subscribe & Save orders, Cash Back is only available on the first payment of the subscription.
Joining a portal through a link here may earn us a referral bonus; it never changes these rates or their order. Details
How this tool is funded
Some links here are referral links: if you join a portal through one, that portal may pay us a referral bonus. It never changes the rates we show or how we rank them. How we make money
Best play
Stack the portal with the right card: the same purchase earns two ways.
Also fits: Bank of America Customized Cash Rewards (3% back on online retail) · Amex Blue Business Plus (2x Amex points on everything)
Card earn rates are our own notes, not live data. Issuer caps and terms apply, so double-check before counting on one.
Rate history last 21 days
Full history →Kosterina's best cashback rate has changed 2 times since Jul 12, ranging 1% to 16%.
Each line follows the best rate on offer at that moment, whoever was paying it. Currently: Cashback via FatCoupon, Points via Rakuten (Amex). Same scale, different currencies: "3" means 3% cash, 3 pts/$, or 3 mi/$.
Every account sees the last 21 days here. Premium goes back to day one.
Recent changes last 21 days
Common questions
Which shopping portal pays the most at Kosterina? +
Right now 5% on Mr. Rebates leads, out of 9 portals we track for Kosterina. The full side-by-side comparison of cashback, miles, and points is above.
Is 5% a good cashback rate for Kosterina? +
5% on Mr. Rebates is the usual rate for Kosterina.
Can I earn airline miles or points for Kosterina through a shopping portal? +
Yes, the top is 1 pts/$ (Amex points) on Rakuten (Amex). Airline and card portals often pay miles or points instead of cashback.
How often do Kosterina's cashback rates change? +
Kosterina's best cashback rate has changed 2 times since Jul 12, ranging 1% to 16%.