Use Cases
Discover real-world examples of digital wallets and verifiable credentials in action — passwordless login, age verification, digital travel, cross-border and public services, and more. Learn from proven patterns, compare approaches, and reuse what works instead of starting from scratch.
Trusted eReceipts for B2B Payments: Issuing verifiable receipts to a European Business Wallet after EUDI-based SCA
by WE BUILD Consortium
Verifiable eReceipts for SME business purchases: An SME buys online. An authorised employee approves the payment with Strong Customer Authentication from their personal EUDI Wallet, and the signed receipt lands in the company's European Business Wallet, ready to post against input VAT. That split is the hard part. Payment rails authenticate people; tax and audit are about organisations. Here the payer is a natural person, while the receipt is bound to the company's wallet key. For SMEs, this replaces the paper slip that gets rekeyed, lost, or written off along with the VAT it could have evidenced. The eReceipt carries itemised lines, per-rate VAT and settlement evidence, so input VAT reconciles automatically once the buyer shares receipts with the Member State tax service. ViDA does this for invoices; nothing does it for receipts, where most SME spending happens. Live on the iGrant.io Organisation Wallet Suite and requires any EUDI Wallet app like Data Wallet. Piggy Bank (Buyer Bank): piggybank-demo.igrant.io Seller /Merchant: webuildshop-corporate-demo.igrant.io SME Business Wallet: byggab-businesswallet.igrant.io Tax portal (demo): taxservice-demo.igrant.io
- Sector
- Finance
- Country
- Sweden
- Production deployment
- No
- More information
- https://webuildshop-corporate-demo.igrant.io/
- Last updated
How it works
Onboarding:
1. Buyer admin registers Bygg AB at the shop. The Business Wallet presents the company's legal identity (EBWOID) and VAT-ID; the shop stores where receipts go.
2. Buyer admin adds authorised employees, each holding a payment attestation from their bank, Piggy Bank.
Purchase:
3. Employee Johan signs in to the shop in Business mode. The shop rechecks the company identity and his payment attestation.
4. He checks out and approves the payment in his own personal EUDI Wallet with Strong Customer Authentication, linked to that transaction. Settlement is SEPA Instant.
5. On settlement, the shop builds the eReceipt and issues it as a signed credential straight to the Bygg AB Business Wallet. No QR code, no app switching.
6. The wallet verifies signature, issuer trust, integrity rules and revocation on arrival. Johan authenticated as a person; the receipt belongs to the company.
Reuse and Tax Reconciliation:
7. The expense service books it as an expense (ReceiptHero, mocked here).
8. Buyer admin shares the period's receipts with the Member State tax service.
9. The tax portal verifies each receipt and reconciles input VAT per rate, with no rekeying on either side.
Tags
- EUDI Wallet
- Business Wallet
- eReceipt
- B2B Payments
- Strong Customer Authentication
- Verifiable Credentials
- OpenID4VCI
- OpenID4VP
- Interoperability
- Expense Management
- Tax / Compliance
- SME
Interaction modes
- Remote flow
VC formats
- SD-JWT VC
Issuance protocols
- OpenID4VCI
Presentation protocols
- OpenID4VP
Interop profiles
- EUDI Wallet ARF
- EWC v3
- HAIP v1
Personal wallets used
- Data Wallet by iGrant.io
Business wallets used
- Organisation Wallet Suite by iGrant.io
Issuers involved
- WE BUILD Corporate Shop
- Buyer Bank
- Seller Bank
Credential types used
- Payment Account
- Payment Card
- Authenticator
- PID (SD-JWT VC)
- EUDI VAT ID
- EBW Owner Identification Data (EBW-OID)
- eReceipt
Relying parties
- WE BUILD Corporate Shop
- Bygg AB Business Wallet
- ReceiptHero
- Buyer Bank
- Member State Tax Authority
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The FIDES Use Case Catalog aims to provide a clear and up-to-date overview of how verifiable credentials and digital wallets are used in the real world. While FIDES Labs BV does not assume responsibility or liability for the completeness, accuracy, or timeliness of the information presented, we have made a best effort to compile a representative overview. The data is aggregated from publicly available sources and from information published by the organisations themselves.
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