Costs, licensing, consumer protection Privacy, self-custody, censorship resistance

American Express — Carta Blu Carta Blu

A plan byAmerican Express — Carta Blu · American Express

3.5/5 1.2/5 · Data verified on

The American Express Blue Card is an option credit card on the proprietary Amex network, free the first year then €35/year. It is the "cashback" card of the consumer range: 1% back on purchases (0.5% if you always stay on the zero-fee tier), credited to the Card Account every 12 months. It requires income ≥€11,000, charges a 2.5% FX fee and carries the lower acceptance of the Amex network versus Visa/Mastercard.

Carta Blu

Annual price
€35

What's included

  • Free 1st year, then €35/year
  • 1% cashback (0.5% on the zero-fee tier)
  • Up to 4 free supplementary cards
  • Travel insurance up to €50,000 · purchase protection €250
  • FX 2.5% · APR 17.48% · income required ≥€11,000
2.5%
FX markup
1%
Cashback
€35
Annual fee
Free
Issuance fee
17.48%
APR

The clause

That 1% on the banner isn't what you pocket.

After FX markup, fees and withdrawals, on an average profile of €1,000/mo (20% abroad).

Advertised 1%
What you get -1.4%

Data verified on Jul 12, 2026 · personalise the calc

46
Transparency: Low
46/100 · see methodology
46
Data exposure: Low
46/100 · lower is better for sovereignty · methodology

Data & conditions

Network American Express
Card type Revolving credit
Backing Unsecured
APR 17.48% (variable)
Credit limit €10,000
Issuing bank American Express
Issuance fee Free
Annual fee €35/year
ATM withdrawal 3.9%
FX markup 2.5%
Cashback 1%
Contactless Yes
Virtual card Yes
KYC Full
Privacy 2/10
Supported countries EEA · 1+ countries
Funding / solidity Circuito globale American Express · carta di credito a cashback entry-level
Regulator Banca d'Italia (vigilanza istituti di pagamento)
Segment B2C
Funding / solidityGlobal American Express network · entry-level cashback credit card
MiCA / License status Istituto di pagamento / emittente carte (American Express) American Express card issuer (IT)

Strengths

  • Free the first year and a low fee (€35/year) from the second
  • Simple 1% cashback on all purchases, credited every 12 months
  • Up to 4 free supplementary cards and zero-liability fraud protection
  • Travel accident insurance up to €50,000 and purchase protection up to €250 (max €1,000/year)
  • No notable sovereignty advantage documented.

Weaknesses

  • 2.5% FX fee on foreign-currency purchases
  • Cashback drops to 0.5% if you always stay on the zero-fee tier and never pay the fee
  • American Express network less accepted than Visa/Mastercard, especially at small merchants
  • Expensive cash withdrawals (3.9%, minimum €2.60) and income requirement ≥€11,000
  • Traditional credit card: not self-custody — the account requires full KYC, a credit check, and can be closed or reported to credit bureaus by the issuer.
  • Full KYC required: verified identity, zero pseudonymity.
  • Funds can be frozen at the platform’s discretion.
  • Subject to regulation (American Express card issuer (IT)): reporting to authorities and freezes on order.
  • FATF-aligned jurisdiction: strong cooperation with authorities.

Verdict

B D ★ 3.5/5 ★ 1.2/5

The Blue Card is the most accessible Amex credit card: free the first year, €35/year after, with a flat 1% cashback that for the average spender easily repays the fee. The limits are the 2.5% FX fee, the cashback halved to 0.5% if you never pay the fee, and the lower acceptance of the Amex network. Overall a balanced choice for those wanting simple low-cost cashback, with an above-average rating.

A credit card is a credit line, not custody of funds: there is neither self-custody nor a user balance here. It remains, however, a fully tracked and censorable instrument — full KYC, an American Express (US group) issuer that profiles transactions and can suspend the line. On the sovereignty lens it is the opposite of trustless tools: no anonymity, no censorship resistance.

Privacy & anonymity 30% 1.0
Fund control 20% 2.2
Censorship resistance 20% 1.4
Trustless / auditability 20% 0.0
Costs 10% 2.1

Promp's editorial rating based on real fees and net annual cost. Promp reviews third-party products independently.

"Sovereignty" rating: score computed on privacy/anonymity (30%), fund control (20%), censorship resistance (20%), trustless/auditability (20%) and costs (10%). Same data, different weights.

FAQ

How much does the Amex Blue Card cost?

It is free the first year, then €35/year from the second. It requires gross annual income ≥€11,000 and a SEPA bank account.

How does the cashback work?

You get 1% on Card purchases, credited to the Card Account every 12 months; it drops to 0.5% if you always stay on the zero-fee tier. Withdrawals, interest, fees and charges earn no cashback.

Sources

Update history

✓ Terms unchanged since Jul 12, 2026

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