KAST Waives Its FX Fee on 16 Latin American Currencies Until the End of 2027
KAST charges no FX fee on card purchases in 16 Latin American currencies until 31 December 2027. It is automatic, but only when you pay in the local currency.
KAST is charging no FX fee on card purchases in 16 Latin American currencies, in a promotion its rules say runs until 31 December 2027. The waiver is automatic: there is nothing to opt into and nothing to claim.
On the KAST Card the FX fee is normally 0.5% to 1.75% on purchases outside US dollars, depending on where you live and where you spend. For someone paying in pesos or reais every day, that was the card's main running cost.
What is covered
The sixteen currencies are ARS, BOB, BRL, CLP, COP, CRC, DOP, GTQ, HNL, MXN, NIO, PAB, PEN, PYG, UYU and VES: Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, the Dominican Republic, Guatemala, Honduras, Mexico, Nicaragua, Panama, Peru, Paraguay, Uruguay and Venezuela.
It applies whether you live in the region or are travelling through it. KAST's rules say the fee is simply not charged, so there is no rebate to wait for.
The conditions
- Verified accounts only. The promotion is open to KAST users who have completed identity verification.
- Card purchases only. Money transfers and remittances, purchases of virtual assets and gambling are excluded, as are deposits, transfers, refunds, reversals and declined payments.
- Pay in the local currency. A purchase converted by the merchant, known as dynamic currency conversion, does not qualify.
- KAST's fee only. The rules define the FX fee as the markup KAST "would otherwise apply on top of the Network Wholesale Rate". The waiver "does not alter the Network Wholesale Rate or any margin embedded in that rate", and does not cover fees from a merchant, acquirer or card network.
How long it lasts
KAST's rules give two start dates, 1 July 2026 for purchases in Brazilian reais and 16 July 2026 for the other fifteen currencies, and one end date, 31 December 2027. Its announcement of 1 October gives the campaign period as starting on 29 September 2026. Either way the waiver is in force now.
KAST can change or end the promotion for future purchases with at least 30 days' notice, or immediately if a regulator, the card issuer or the card network requires it. It says no change will be applied to purchases already made.
How it compares
Among the cards we track, a 0% FX fee usually comes with a condition. Solid's new euro balance removes the fee only on euro purchases and only on Wirex-issued cards, and Ether.fi's applies to purchases charged in euros. KAST's is the widest waiver for Latin America, and its rules set no membership requirement beyond a verified account. It is a promotion with an end date, though, not a permanent term of the card.
Sources: KAST, Spend Across LATAM With KAST and Pay 0% FX Fees (1 October 2026), including the promotion rules published with it. Checked 9 October 2026.
Common questions
Which currencies are covered by KAST's 0% FX fee?
Sixteen: ARS, BOB, BRL, CLP, COP, CRC, DOP, GTQ, HNL, MXN, NIO, PAB, PEN, PYG, UYU and VES. That covers Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, the Dominican Republic, Guatemala, Honduras, Mexico, Nicaragua, Panama, Peru, Paraguay, Uruguay and Venezuela.
Do I need to sign up for KAST's 0% FX fee?
No. KAST says the waiver is applied automatically to each qualifying card purchase, with no opt-in and nothing to claim. You need a verified KAST account, and you have to pay in the local currency rather than accept a merchant's offer to charge you in your home currency.
Does 0% FX mean the exchange rate has no cost at all?
No. KAST waives only its own FX fee, the markup it would add on top of the card network's rate. Its rules say the waiver does not change the network's wholesale rate or any margin within it, and does not cover dynamic currency conversion or fees charged by a merchant or another third party.
Cards mentioned in this article
Card figures referenced here come from each issuer's published terms and each card page shows when its data was last verified — see our methodology for how, and the changelog for what has changed since. Rewards and availability vary by region and move often. Not financial advice.