Complimentary airport lounge access worldwide via the Mastercard Black LoungeKey program.
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⚖ Add to comparisonC6 Bank · Mastercard
C6 Carbon Mastercard Black
Carbon is the points-hoarder's premium pick in Brazil: up to 2.5 Atomos points per US dollar that never expire, one of the more generous earn rates among Black cards here, plus worldwide LoungeKey access and a strong global-account feature for travel. The R$1,080 fee waives with enough spend, so it pays off for frequent spenders who transfer points to airlines. Light spenders underuse the perks and shouldn't bother. As of 2026 international purchases still carry IOF plus the Mastercard rate, so it's not a free-FX card despite the global account. Skip it if you won't redeem points or travel. Confirm earn caps on c6bank.com.br.
⟳ Rates & fees verified June 2026 — always confirm the current terms on the issuer's official site before applying.
What you earn
- ✓Earn up to 2.5 Atomos points per US dollar spent
- ✓Atomos points never expire
- ✓Mastercard Black benefits, lounge access included
- ✓A free global account with competitive exchange features
- ✓Move points to airline partners
👍 Pros
- + Generous points that never expire
- + Airport lounge access worldwide
- + Excellent app and international account features
- + Annual fee can be waived with enough spending
👎 Cons
- – Annual fee applies unless waived by spending
- – Requires good income and credit approval
- – Light spenders underuse the premium benefits
Can you get it?
- ▸Brazilian resident holding a valid CPF
- ▸Comprovante de renda (proof of income) meeting C6's threshold
- ▸A strong Serasa score and credit history
- ▸Account opened and verified through the C6 Bank app
Requirements are general guidance — the issuer makes the final decision. Learn more about card requirements →
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