Discover is a US-based card network that forms an alliance with Diners Club International, but it has virtually no local issuance base in Europe, including Estonia. On the other hand, Estonia draws international entrepreneurs through the world's first e-Residency program (launched in 2014), and Tallinn is a city with steady demand for international conferences and tourism, so there is a consistent pool of visitors and residents using cards issued outside the region, such as in the US.

Discover should therefore be approached not as a tool for capturing the Estonian domestic market, but as a complement that reduces payment failures for SaaS, digital services, hospitality, travel, and international-community-focused businesses where global customers are mixed in. Keep bank-link transfers and card wallets as your primary methods, and consider Discover as an option that widens acceptance.

The payment flow is the same as for a general credit card: the consumer enters their card details, completes 3DS2 additional authentication if required, and approval is finalized. However, unlike SCA (Strong Customer Authentication), which is mandatory for EEA-issued cards, the authentication method for Discover cards issued outside the region, such as in the US, can vary depending on the issuer's policy. The approved payment is received by Hecto Financial in euros and moves on to the settlement process.

Integrating through Hecto Financial lets a domestic corporation consider adding acceptance of Discover and Diners-affiliated cards as an option on top of its existing card payment setup, without a separate local contract in Estonia. Actual support eligibility and terms (settlement cycle, fees, currency options) vary by industry and transaction volume, so confirm with Hecto Financial's sales team before signing a contract.

• Business registration country

  Confirm contract eligibility based on domestic business registration

• Sales channel

  The integration method and priority vary depending on your online sales channel mix—owned mall, open marketplace, mobile app, and so on

• Product category

  Check in advance whether your products fall under categories restricted by Discover's merchant policy

• EU regulatory compliance

  Confirm compliance with EU payment regulations such as PSD2 and SEPA (see official sources below)

Discover transactions from sales in Estonia are received by Hecto Financial in the payment currency, euros (EUR), then converted and paid out to the domestic merchant in whichever of USD, KRW, or JPY was chosen at the time of contract. Given the nature of card payments, chargebacks can occur, and if the sale is a distance sale to an EU-resident consumer, a 14-day withdrawal request is also grounds for a refund, so confirm dispute-evidence requirements and refund deadlines together at the contracting stage.

• Eesti Pank (Bank of Estonia)Official information on Estonia's payment systems and related regulations. If this page's content differs from the actual regulations, the official sources take precedence.