COS SG: Shopping portal cashback & miles rates
Checked 10d ago · 1 portal compared
Every portal below pays you for starting your COS SG purchase there: they split the commission they get from COS SG with you. Same store, same checkout, same order, but cashback or miles on top. New here? How portals work
Best COS SG rate right now
Best right now
4.2% · select categories up to 7%
Verdict:
- It's an "up to" rate. The headline number may only apply to some categories.
0 rate changes in the 42 days we've tracked it.
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 →Each line follows the best rate on offer at that moment, whoever was paying it. Currently: Cashback via FatCoupon. 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.
Common questions
Which shopping portal pays the most at COS SG? +
Right now up to 4.2% on FatCoupon leads, out of 1 portal we track for COS SG. The full side-by-side comparison of cashback, miles, and points is above.
Is 4.2% a good cashback rate for COS SG? +
4.2% on FatCoupon is the usual rate for COS SG.
Can I earn airline miles or points for COS SG through a shopping portal? +
Not right now. None of the 1 portal we track list airline miles or transferable points for COS SG today. That can change, so it's worth setting an alert.
How often do COS SG's cashback rates change? +
We've tracked COS SG since Jul 20, 2026. Portal rates change whenever the portal updates them, and each row shows exactly when we last confirmed it.