Electronic signature for accounting firms

A profession particularly impacted

A profession particularly impacted

Accounting firms sign and have signed a considerable volume of documents: annual engagement letters, tax packages, balance sheets, VAT declarations, meeting minutes. Traditionally paper-based, these flows weigh heavily on the productivity of a firm.

The electronic signature radically changes the situation: a report validated by the customer in 5 minutes instead of 3 days, an annual billing cycle caught up in a few weeks.

• Documents typically signedMission letter
• (annual, with renewal)Balance sheet and annexes
• Balance sheet and annexes
• (client validation before deposit)Tax package
• VAT declarations(customer collection)
• Meeting minutes
• (account approval)(account approval)

Associate current account agreement

Various certificates(banking, URSSAF)Recommended signature levelTheadvanced signature (AES)

is the standard for documents with legal value (mission letter, general meeting minutes). Theis the standard for documents with legal value (mission letter, general meeting minutes). Thesimple signature (SES)

is sufficient for internal validations (approval of a draft balance sheet).

• For certain regulated documents (filing at the registry), thequalified signature (QES)
• may be required — check depending on the jurisdiction.Benefits for the firm
• Benefits for the firmAccelerated tax campaign ⬥⬥⬥: signature of balance sheets in a few hours instead of weeks
• Improved return rate ⬥⬥⬥: automatic reminders vs unanswered emailsAdministrative gain ⬥⬥⬥: 30 to 60 minutes per file (printing, scanning, filing)

Traceability for controls ⬥⬥⬥: audit trail applicable to tax audits

Integration with accounting software

Firms typically use Sage, Cegid, EBP, MyUnisoft. A modern signature platform is interfaced via API or Zapier: from the software, the accountant clicks "Send for signature", the document is sent automatically, the signed PDF returns to the client file. ⬥⬥cat multi-documents)

• Firms typically use Sage, Cegid, EBP, MyUnisoft. A modern signature platform is interfaced via API or Zapier: from the software, the accountant clicks "Send for signature", the document is sent automatically, the signed PDF returns to the client file. ⬥⬥cat multi-documents)
• Concrete case: tax campaign
• A firm of 15 accountants industrialized the tax campaign. New route:
• Automatic generation of the balance sheet + annexes from Sage

Sending in AES to the client's manager

Automatic reminder on D+3 if not signed

1. Validation report signed once the accounts have been approved
2. Automated submission to the registry
3. Automated submission to the registry
4. Campaign 2025: 320 files processed in 6 weeks instead of 10, 0 documents lost, 100% of documents kept for 10 years.
5. How Certyneo helps you

Certyneo offers templates adapted to accounting firms (mission letters, AGM minutes), an advanced signature by default, integration with major accounting software (Sage, Cegid, EBP) via API, and 10-year archiving in compliance with legal obligations to retain accounting documents.

Discover the Certyneo electronic signature solution

FAQ

Can an accountant sign on behalf of the client?

Can an accountant sign on behalf of the client?

No, the electronic signature binds the signatory. The customer must sign himself.

Does the annual mission letter have to be signed every year?

Yes, it is an ethical obligation of the OEC. Tacit renewal possible if the letter so provides.

For filing at the registry?

Certain procedures require QES (e-graft). Most accept PDF signed in AES.

How long should you keep the parts?

How long should you keep the parts?

10 years (article L.123-22 Commercial Code).

Can reports be signed on mobile?

Yes, all modern platforms are mobile-friendly.

Conclusion

The electronic signature has become a strategic tool for accounting firms: productivity, traceability, compliance. Firms that have adopted it handle 30 to 50% more cases at constant staff numbers.

Try Certyneo to send, sign and track your documents online simply, quickly and securely.