What Is a Financial Seal? Difference from e-Signature
A financial seal is an electronic approval tool exclusive to legal entities (companies). Issued by TÜBİTAK-BİLGEM Public Certification Center, the financial seal certificate is used for digitally signing documents in e-Ledger, e-Invoice and other GİB applications.
Financial Seal vs. Electronic Signature
| Feature | Financial Seal | Qualified Electronic Signature |
|---|---|---|
| User | Legal entities | Natural persons |
| Represents | Corporate identity | Individual identity |
| Issuer | TÜBİTAK | Authorized CAs |
How to Obtain a Financial Seal
- Apply to TÜBİTAK authorized dealers
- Prepare documents: Company authorization, signature circular, trade registry gazette
- Identity verification: Authorized person must apply in person
- Receive USB token or HSM device
- Activate and start using
e-Defter PRO Integration
e-Defter PRO works with both USB token and HSM-based financial seals. Batch signing support allows signing hundreds of e-ledger files at once.
Last updated: April 22, 2026 — e-Defter PRO Content Team