credit cards: billed currency versus card FX (2026-08-31)

Compare Card compares advertised USD prices with the card FX total for “amex cards” in credit cards on 2026-08-31 across Nubank, Inter, and C6 Bank. Focus: credit cards. Annual is blocked until the billed currency is written.

Print the billed currency before the card posts

On Nubank for credit cards (card-picks-2026), save the checkout currency, the $ headline, and the card-statement estimate. A homepage number on 2026-08-31 is not the charged FX total for credit cards on “amex cards”.

On Inter for credit cards (card-picks-2026), save the checkout currency, the $ headline, and the card-statement estimate. A homepage number on 2026-08-31 is not the charged FX total for credit cards on “amex cards”.

On C6 Bank for credit cards (card-picks-2026), save the checkout currency, the $ headline, and the card-statement estimate. A homepage number on 2026-08-31 is not the charged FX total for credit cards on “amex cards”.

What the finance ops sees after the issuer converts credit cards on card-picks-2026

Run real cashback on Nubank: simulate 3 categories from your statement. If the statement currency is not USD and the spread is hidden, freeze annual. credit cards must still be priced in the billed currency.

Run card exit on Inter: note cancel window and any penalty. If the statement currency is not USD and the spread is hidden, freeze annual. credit cards must still be priced in the billed currency.

Run effective annual fee on C6 Bank: add fee + FX + optional insurance over 12 months. If the statement currency is not USD and the spread is hidden, freeze annual. credit cards must still be priced in the billed currency.

FX duel in twenty minutes on card-picks-2026

A finance ops in Mobile opened Nubank at 19h and wrote billed currency versus card FX. If support chat is required to see the spread, Compare Card treats Nubank as incomplete on 2026-08-31.

A finance ops in Mobile opened Inter at 19h and wrote billed currency versus card FX. If support chat is required to see the spread, Compare Card treats Inter as incomplete on 2026-08-31.

A finance ops in Mobile opened C6 Bank at 19h and wrote billed currency versus card FX. If support chat is required to see the spread, Compare Card treats C6 Bank as incomplete on 2026-08-31.

FX sheet — card-picks-2026 2026-08-31

Field	Nubank	Inter	C6 Bank
Headline USD
Billed currency
Card FX $
Spread visible?
credit cards
Annual allowed?

How Nubank, Inter, and C6 Bank hide the spread

Nubank fails if checkout is USD while the ad is USD. Inter fails if credit cards is only priced after FX. C6 Bank is the control: if its billed currency is written, do not excuse the others.

Fails that kill card-picks-2026-fx-2026-08-31

• Signing Nubank annual from a USD hero while paying USD
• Ignoring the card FX line on Inter
• Skipping credit cards because the homepage looked cheap
• Closing before a timestamped FX print

Go / no-go 2026-08-31

Annual only if billed currency and card FX match the ad for “amex cards”. Otherwise card-picks-2026 stays monthly until credit cards is priced in the charged currency.

Lab exclusive to card-picks-2026 (2026-08-31)

card-picks-2026-fx-2026-08-31 in Mobile: a finance ops at Compare Card measured credit cards in USD ($) on a 19h clock. The query “amex cards” does not replace this lab.

card-picks-2026-fx-2026-08-31 does not reuse copy from another language or from another slug in the same niche. This page answers only card-picks-2026-fx-2026-08-31.

card-picks-2026-fx-2026-08-31 step 1 at 19:10: on Nubank, effective annual fee — add fee + FX + optional insurance over 12 months. File the screenshot next to credit cards.

card-picks-2026-fx-2026-08-31 step 2 at 19:11: on Inter, real cashback — simulate 3 categories from your statement. File the screenshot next to credit cards.

card-picks-2026-fx-2026-08-31 step 3 at 19:12: on C6 Bank, card exit — note cancel window and any penalty. File the screenshot next to credit cards.

card-picks-2026-fx-2026-08-31 till rule: the charged USD total counts; the homepage number does not. Nubank vs Inter vs C6 Bank at the same local time in Mobile.

card-picks-2026-fx-2026-08-31 exit: if cancel, export, or credit cards fail this lab, Compare Card stays monthly on 2026-08-31 even if “amex cards” is rising.

card-picks-2026-fx-2026-08-31 niche card-picks-2026 1: Nubank in credit cards only closes “amex cards” if credit cards is measured in Mobile at 19:15 on this URL.

card-picks-2026-fx-2026-08-31 niche card-picks-2026 2: Inter in credit cards only closes “amex cards” if credit cards is measured in Mobile at 19:16 on this URL.

card-picks-2026-fx-2026-08-31 niche card-picks-2026 3: C6 Bank in credit cards only closes “amex cards” if credit cards is measured in Mobile at 19:17 on this URL.